1
|
Habs D, Günther MM, Jentschel M, Urban W. Erratum: Refractive Index of Silicon at γ Ray Energies [Phys. Rev. Lett. 108, 184802 (2012)]. Phys Rev Lett 2017; 118:169904. [PMID: 28474941 DOI: 10.1103/physrevlett.118.169904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Indexed: 06/07/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.108.184802.
Collapse
|
2
|
Jolie J, Régis JM, Wilmsen D, Ahmed S, Pfeiffer M, Saed-Samii N, Warr N, Blanc A, Jentschel M, Köster U, Mutti P, Soldner T, Simpson G, De France G, Urban W, Drouet F, Vancraeyenest A, Baczyk P, Czerwinski M, Korgul A, Mazzocchi C, Rzaca-Urban T, Bruce A, Roberts O, Fraile L, Mach H, Paziy V, Ignatov A, Ilieva S, Kröll T, Scheck M, Thürauf M, Ivanova D, Kisyov S, Lalkovski S, Podolyák Z, Regan P, Korten W, Zielinska M, Salsac M, Habs D, Thirolf P, Ur CA, Bernards C, Casten R, Cooper N, Werner V, Cakirli R, Leoni S, Benzoni G, Bocchi G, Bottoni S, Crespi F, Fornal B, Cieplicka N, Szpak B, Petrache C, Leguillon R, John R, Lorenz C, Massarczyk R, Schwengner R, Curien D, Lozeva R, Sengele L, Marginean N, Lica R. The (n,γ) campaigns at EXILL. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20159301014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
3
|
Habs D, Rudolph D, Kester O, Thirolf P, Reiter P, Schwalm D, Walter G, Van Duppen P, Eberth J. Physics with REX-ISOLDE and MINIBALL. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s002180050294] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
4
|
Thirolf P, Csige L, Habs D, Günther M, Jentschel M, Krasznahorkay A, Filipescu D, Glodariu T, Stroe L, Tesileanu O, Karwowski H, Rich G. Perspectives for photofission studies with highly brilliant, monochromaticγ–ray beams. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123808001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
5
|
Abstract
For x rays the real part of the refractive index, dominated by Rayleigh scattering, is negative and converges to zero for higher energies. For γ rays a positive component, related to Delbrück scattering, increases with energy and becomes dominating. The deflection of a monochromatic γ beam due to refraction was measured by placing a Si wedge into a flat double crystal spectrometer. Data were obtained in an energy range from 0.18 MeV to 2 MeV. The data are compared to theory, taking into account elastic and inelastic Delbrück scattering as well as recent results on the energy dependence of the pair creation cross section. Probably a new field of γ optics with many new applications opens up.
Collapse
Affiliation(s)
- D Habs
- Ludwig-Maximilians-Universität München, D-85748 Garching, Germany
| | | | | | | |
Collapse
|
6
|
Lang C, Habs D, Thirolf P, Zoglauer A. 82 SUBMILLIMETER NUCLEAR MEDICAL IMAGING WITH A COMPTON CAMERA USING TRIPLE COINCIDENCES OF COLLINEAR BETA+− ANNIHILATION PHOTONS AND GAMMA RAYS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70059-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
7
|
Köster U, Günther M, Habs D. 207 PRODUCTION OF RADIOISOTOPES WITH HIGH SPECIFIC ACTIVITY BY PHOTONUCLEAR REACTIONS: FROM A “WILD IDEA” TO REALITY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70177-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
Jung D, Yin L, Albright BJ, Gautier DC, Hörlein R, Kiefer D, Henig A, Johnson R, Letzring S, Palaniyappan S, Shah R, Shimada T, Yan XQ, Bowers KJ, Tajima T, Fernández JC, Habs D, Hegelich BM. Monoenergetic ion beam generation by driving ion solitary waves with circularly polarized laser light. Phys Rev Lett 2011; 107:115002. [PMID: 22026679 DOI: 10.1103/physrevlett.107.115002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Indexed: 05/31/2023]
Abstract
Experimental data from the Trident Laser facility is presented showing quasimonoenergetic carbon ions from nm-scaled foil targets with an energy spread of as low as ±15% at 35 MeV. These results and high-resolution kinetic simulations show laser acceleration of quasimonoenergetic ion beams by the generation of ion solitons with circularly polarized laser pulses (500 fs, λ=1054 nm). The conversion efficiency into monoenergetic ions is increased by an order of magnitude compared with previous experimental results, representing an important step towards applications such as ion fast ignition.
Collapse
Affiliation(s)
- D Jung
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Jung D, Hörlein R, Gautier DC, Letzring S, Kiefer D, Allinger K, Albright BJ, Shah R, Palaniyappan S, Yin L, Fernández JC, Habs D, Hegelich BM. A novel high resolution ion wide angle spectrometer. Rev Sci Instrum 2011; 82:043301. [PMID: 21528999 DOI: 10.1063/1.3575581] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A novel ion wide angle spectrometer (iWASP) has been developed, which is capable of measuring angularly resolved energy distributions of protons and a second ion species, such as carbon C(6 +), simultaneously. The energy resolution for protons and carbon ions is better than 10% at ∼50 MeV/nucleon and thus suitable for the study of novel laser-ion acceleration schemes aiming for ultrahigh particle energies. A wedged magnet design enables an acceptance angle of 30°(∼524 mrad) and high angular accuracy in the μrad range. First, results obtained at the LANL Trident laser facility are presented demonstrating high energy and angular resolution of this novel iWASP.
Collapse
Affiliation(s)
- D Jung
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Thirolf P, Habs D, Gross M, Allinger K, Bin J, Henig A, Kiefer D, Ma W, Schreiber J. Laser Ion Acceleration: Status and Perspectives for Fusion. EPJ Web of Conferences 2011. [DOI: 10.1051/epjconf/20111711001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
11
|
Jung D, Hörlein R, Kiefer D, Letzring S, Gautier DC, Schramm U, Hübsch C, Öhm R, Albright BJ, Fernandez JC, Habs D, Hegelich BM. Development of a high resolution and high dispersion Thomson parabola. Rev Sci Instrum 2011; 82:013306. [PMID: 21280824 DOI: 10.1063/1.3523428] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Here, we report on the development of a novel high resolution and high dispersion Thomson parabola for simultaneously resolving protons and low-Z ions of more than 100 MeV/nucleon necessary to explore novel laser ion acceleration schemes. High electric and magnetic fields enable energy resolutions of ΔE∕E < 5% at 100 MeV/nucleon and impede premature merging of different ion species at low energies on the detector plane. First results from laser driven ion acceleration experiments performed at the Trident Laser Facility demonstrate high resolution and superior species and charge state separation of this novel Thomson parabola for ion energies of more than 30 MeV/nucleon.
Collapse
Affiliation(s)
- D Jung
- Los Alamos National Laboratory, New Mexico 87545, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Albright BJ, Yin L, Hegelich BM, Bowers KJ, Huang C, Henig A, Fernández JC, Flippo KA, Gaillard SA, Kwan TJT, Yan XQ, Tajima T, Habs D. Ultraintense laser interaction with nanoscale targets: a simple model for layer expansion and ion acceleration. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/244/4/042022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
13
|
Henig A, Steinke S, Schnürer M, Sokollik T, Hörlein R, Kiefer D, Jung D, Schreiber J, Hegelich BM, Yan XQ, Meyer-ter-Vehn J, Tajima T, Nickles PV, Sandner W, Habs D. Radiation-pressure acceleration of ion beams driven by circularly polarized laser pulses. Phys Rev Lett 2009; 103:245003. [PMID: 20366205 DOI: 10.1103/physrevlett.103.245003] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Indexed: 05/29/2023]
Abstract
We present experimental studies on ion acceleration from ultrathin diamondlike carbon foils irradiated by ultrahigh contrast laser pulses of energy 0.7 J focused to peak intensities of 5x10(19) W/cm2. A reduction in electron heating is observed when the laser polarization is changed from linear to circular, leading to a pronounced peak in the fully ionized carbon spectrum at the optimum foil thickness of 5.3 nm. Two-dimensional particle-in-cell simulations reveal that those C6+ ions are for the first time dominantly accelerated in a phase-stable way by the laser radiation pressure.
Collapse
Affiliation(s)
- A Henig
- Max-Planck-Institut für Quantenoptik, D-85748 Garching, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Henig A, Kiefer D, Markey K, Gautier DC, Flippo KA, Letzring S, Johnson RP, Shimada T, Yin L, Albright BJ, Bowers KJ, Fernández JC, Rykovanov SG, Wu HC, Zepf M, Jung D, Liechtenstein VK, Schreiber J, Habs D, Hegelich BM. Enhanced laser-driven ion acceleration in the relativistic transparency regime. Phys Rev Lett 2009; 103:045002. [PMID: 19659362 DOI: 10.1103/physrevlett.103.045002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2009] [Indexed: 05/28/2023]
Abstract
We report on the acceleration of ion beams from ultrathin diamondlike carbon foils of thickness 50, 30, and 10 nm irradiated by ultrahigh contrast laser pulses at intensities of approximately 7 x 10;{19} W/cm;{2}. An unprecedented maximum energy of 185 MeV (15 MeV/u) for fully ionized carbon atoms is observed at the optimum thickness of 30 nm. The enhanced acceleration is attributed to self-induced transparency, leading to strong volumetric heating of the classically overdense electron population in the bulk of the target. Our experimental results are supported by both particle-in-cell (PIC) simulations and an analytical model.
Collapse
Affiliation(s)
- A Henig
- Max-Planck-Institut für Quantenoptik, Garching, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Schwerdtfeger W, Thirolf PG, Wimmer K, Habs D, Mach H, Rodriguez TR, Bildstein V, Egido JL, Fraile LM, Gernhäuser R, Hertenberger R, Heyde K, Hoff P, Hübel H, Köster U, Kröll T, Krücken R, Lutter R, Morgan T, Ring P. Shape coexistence near neutron number N=20: first identification of the E0 decay from the deformed first excited Jpi=0+ state in 30Mg. Phys Rev Lett 2009; 103:012501. [PMID: 19659139 DOI: 10.1103/physrevlett.103.012501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2008] [Revised: 02/20/2009] [Indexed: 05/28/2023]
Abstract
The 1789 keV state in 30Mg was identified as the first excited 0+ state via its electric monopole (E0) transition to the ground state. The measured small value of rho2(E0,0(2)+-->0(1)+)=(26.2+/-7.5)x10(-3) implies within a two-level model a small mixing of competing configurations with largely different intrinsic quadrupole deformation near the neutron shell closure at N=20. Axially symmetric configuration mixing calculations identify the ground state of 30Mg to be based on neutron configurations below the N=20 shell closure, while the excited 0+ state mainly consists of two neutrons excited into the nu 1f7/2 orbital. The experimental result represents the first case where an E0 back decay from a strongly deformed second to the normal deformed first nuclear potential minimum well has been unambiguously identified, thus directly proving shape coexistence at the borderline of the much-debated "island of inversion."
Collapse
Affiliation(s)
- W Schwerdtfeger
- Ludwig-Maximilians-Universität München, D-85748 Garching, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Glaser C, Coan P, Bravin A, Muetzel E, Habs D, Reiser MF. Röntgen-Phasenkontrastbildgebung am Knorpel: Ist die Darstellung der Binnenstruktur möglich? ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
17
|
Schmid K, Veisz L, Tavella F, Benavides S, Tautz R, Herrmann D, Buck A, Hidding B, Marcinkevicius A, Schramm U, Geissler M, Meyer-Ter-Vehn J, Habs D, Krausz F. Few-cycle laser-driven electron acceleration. Phys Rev Lett 2009; 102:124801. [PMID: 19392288 DOI: 10.1103/physrevlett.102.124801] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Indexed: 05/27/2023]
Abstract
We report on an electron accelerator based on few-cycle (8 fs full width at half maximum) laser pulses, with only 40 mJ energy per pulse, which constitutes a previously unexplored parameter range in laser-driven electron acceleration. The produced electron spectra are monoenergetic in the tens-of-MeV range and virtually free of low-energy electrons with thermal spectrum. The electron beam has a typical divergence of 5-10 mrad. The accelerator is routinely operated at 10 Hz and constitutes a promising source for several applications. Scalability of the few-cycle driver in repetition rate and energy implies that the present work also represents a step towards user friendly laser-based accelerators.
Collapse
Affiliation(s)
- K Schmid
- Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Henig A, Kiefer D, Geissler M, Rykovanov SG, Ramis R, Hörlein R, Osterhoff J, Major Z, Veisz L, Karsch S, Krausz F, Habs D, Schreiber J. Laser-driven shock acceleration of ion beams from spherical mass-limited targets. Phys Rev Lett 2009; 102:095002. [PMID: 19392529 DOI: 10.1103/physrevlett.102.095002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2008] [Indexed: 05/27/2023]
Abstract
We report on experimental studies of ion acceleration from spherical targets of diameter 15 microm irradiated by ultraintense (1x10(20) W/cm2) pulses from a 20-TW Ti:sapphire laser system. A highly directed proton beam with plateau-shaped spectrum extending to energies up to 8 MeV is observed in the laser propagation direction. This beam arises from acceleration in a converging shock launched by the laser, which is confirmed by 3-dimensional particle-in-cell simulations. The temporal evolution of the shock-front curvature shows excellent agreement with a two-dimensional radiation pressure model.
Collapse
Affiliation(s)
- A Henig
- Max-Planck-Institut für Quantenoptik, Garching, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Osterhoff J, Popp A, Major Z, Marx B, Rowlands-Rees TP, Fuchs M, Geissler M, Hörlein R, Hidding B, Becker S, Peralta EA, Schramm U, Grüner F, Habs D, Krausz F, Hooker SM, Karsch S. Generation of stable, low-divergence electron beams by laser-wakefield acceleration in a steady-state-flow gas cell. Phys Rev Lett 2008; 101:085002. [PMID: 18764625 DOI: 10.1103/physrevlett.101.085002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Indexed: 05/26/2023]
Abstract
Laser-driven, quasimonoenergetic electron beams of up to approximately 200 MeV in energy have been observed from steady-state-flow gas cells. These beams emitted within a low-divergence cone of 2.1+/-0.5 mrad FWHM display unprecedented shot-to-shot stability in energy (2.5% rms), pointing (1.4 mrad rms), and charge (16% rms) owing to a highly reproducible gas-density profile within the interaction volume. Laser-wakefield acceleration in gas cells of this type provides a simple and reliable source of relativistic electrons suitable for applications such as the production of extreme-ultraviolet undulator radiation.
Collapse
Affiliation(s)
- J Osterhoff
- Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Schollmeier M, Becker S, Geissel M, Flippo KA, Blazević A, Gaillard SA, Gautier DC, Grüner F, Harres K, Kimmel M, Nürnberg F, Rambo P, Schramm U, Schreiber J, Schütrumpf J, Schwarz J, Tahir NA, Atherton B, Habs D, Hegelich BM, Roth M. Controlled transport and focusing of laser-accelerated protons with miniature magnetic devices. Phys Rev Lett 2008; 101:055004. [PMID: 18764401 DOI: 10.1103/physrevlett.101.055004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2008] [Indexed: 05/26/2023]
Abstract
This Letter demonstrates the transporting and focusing of laser-accelerated 14 MeV protons by permanent magnet miniature quadrupole lenses providing field gradients of up to 500 T/m. The approach is highly reproducible and predictable, leading to a focal spot of (286 x 173) microm full width at half maximum 50 cm behind the source. It decouples the relativistic laser-proton acceleration from the beam transport, paving the way to optimize both separately. The collimation and the subsequent energy selection obtained are perfectly applicable for upcoming high-energy, high-repetition rate laser systems.
Collapse
Affiliation(s)
- M Schollmeier
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstrasse 9, Darmstadt, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Ekström A, Cederkäll J, Fahlander C, Hjorth-Jensen M, Ames F, Butler PA, Davinson T, Eberth J, Fincke F, Görgen A, Górska M, Habs D, Hurst AM, Huyse M, Ivanov O, Iwanicki J, Kester O, Köster U, Marsh BA, Mierzejewski J, Reiter P, Scheit H, Schwalm D, Siem S, Sletten G, Stefanescu I, Tveten GM, Van de Walle J, Van Duppen P, Voulot D, Warr N, Weisshaar D, Wenander F, Zielińska M. 0(gs)+ -->2(1)+ transition strengths in 106Sn and 108Sn. Phys Rev Lett 2008; 101:012502. [PMID: 18764107 DOI: 10.1103/physrevlett.101.012502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2008] [Indexed: 05/26/2023]
Abstract
The reduced transition probabilities, B(E2; 0(gs)+ -->2(1)+), have been measured in the radioactive isotopes (108,106)Sn using subbarrier Coulomb excitation at the REX-ISOLDE facility at CERN. Deexcitation gamma rays were detected by the highly segmented MINIBALL Ge-detector array. The results, B(E2;0(gs)+ -->2(1)+)=0.222(19)e2b2 for 108Sn and B(E2; 0(gs)+-->2(1)+)=0.195(39)e2b2 for 106Sn were determined relative to a stable 58Ni target. The resulting B(E2) values are approximately 30% larger than shell-model predictions and deviate from the generalized seniority model. This experimental result may point towards a weakening of the N=Z=50 shell closure.
Collapse
Affiliation(s)
- A Ekström
- Physics Department, University of Lund, Box 118, SE-221 00 Lund, Sweden
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Rauth C, Ackermann D, Blaum K, Block M, Chaudhuri A, Di Z, Eliseev S, Ferrer R, Habs D, Herfurth F, Hessberger FP, Hofmann S, Kluge HJ, Maero G, Martín A, Marx G, Mukherjee M, Neumayr JB, Plass WR, Rahaman S, Rodríguez D, Scheidenberger C, Schweikhard L, Thirolf PG, Vorobjev G, Weber C. First Penning trap mass measurements beyond the proton drip line. Phys Rev Lett 2008; 100:012501. [PMID: 18232754 DOI: 10.1103/physrevlett.100.012501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2006] [Revised: 07/19/2007] [Indexed: 05/25/2023]
Abstract
The masses of six neutron-deficient rare holmium and thulium isotopes close to the proton drip line were determined with the SHIPTRAP Penning trap mass spectrometer. For the first time the masses of the proton-unbound isotopes 144,145Ho and 147,148Tm were directly measured. The proton separation energies were derived from the measured mass values and compared to predictions from mass formulas. The new values of the proton separation energies are used to determine the location of the proton drip line for holmium and thulium more accurately.
Collapse
Affiliation(s)
- C Rauth
- Gesellschaft für Schwerionenforschung (GSI), Planckstrasse 1, 64291 Darmstadt, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Ter-Avetisyan S, Schnürer M, Sokollik T, Nickles PV, Sandner W, Reiss HR, Stein J, Habs D, Nakamura T, Mima K. Proton acceleration in the electrostatic sheaths of hot electrons governed by strongly relativistic laser-absorption processes. Phys Rev E Stat Nonlin Soft Matter Phys 2008; 77:016403. [PMID: 18351940 DOI: 10.1103/physreve.77.016403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2007] [Revised: 09/14/2007] [Indexed: 05/26/2023]
Abstract
Two different laser energy absorption mechanisms at the front side of a laser-irradiated foil have been found to occur, such that two distinct relativistic electron beams with different properties are produced. One beam arises from the ponderomotively driven electrons propagating in the laser propagation direction, and the other is the result of electrons driven by resonance absorption normal to the target surface. These properties become evident at the rear surface of the target, where they give rise to two spatially separated sources of ions with distinguishable characteristics when ultrashort (40fs) high-intensity laser pulses irradiate a foil at 45 degrees incidence. The laser pulse intensity and the contrast ratio are crucial. One can establish conditions such that one or the other of the laser energy absorption mechanisms is dominant, and thereby one can control the ion acceleration scenarios. The observations are confirmed by particle-in-cell (PIC) simulations.
Collapse
Affiliation(s)
- S Ter-Avetisyan
- Max-Born-Institute, Max-Born-Strasse 2a, D-12489 Berlin, Germany.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Affiliation(s)
- D. Habs
- a Max-Planck Institut für Kernphysik , Postfach 103980, D-6900, Heidelberg, Germany
| |
Collapse
|
25
|
Van de Walle J, Aksouh F, Ames F, Behrens T, Bildstein V, Blazhev A, Cederkäll J, Clément E, Cocolios TE, Davinson T, Delahaye P, Eberth J, Ekström A, Fedorov DV, Fedosseev VN, Fraile LM, Franchoo S, Gernhauser R, Georgiev G, Habs D, Heyde K, Huber G, Huyse M, Ibrahim F, Ivanov O, Iwanicki J, Jolie J, Kester O, Köster U, Kröll T, Krücken R, Lauer M, Lisetskiy AF, Lutter R, Marsh BA, Mayet P, Niedermaier O, Nilsson T, Pantea M, Perru O, Raabe R, Reiter P, Sawicka M, Scheit H, Schrieder G, Schwalm D, Seliverstov MD, Sieber T, Sletten G, Smirnova N, Stanoiu M, Stefanescu I, Thomas JC, Valiente-Dobón JJ, Van Duppen P, Verney D, Voulot D, Warr N, Weisshaar D, Wenander F, Wolf BH, Zielińska M. Coulomb excitation of neutron-rich Zn isotopes: first observation of the 2(1)+ state in 80Zn. Phys Rev Lett 2007; 99:142501. [PMID: 17930664 DOI: 10.1103/physrevlett.99.142501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2007] [Indexed: 05/25/2023]
Abstract
Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of the 2(1)+ state in 78Zn could be firmly established and for the first time the 2+ --> 0(1)+ transition in 80Zn was observed at 1492(1) keV. B(E2,2(1)+ --> 0(1)+) values were extracted for (74,76,78,80)Zn and compared to large scale shell model calculations. With only two protons outside the Z=28 proton core, 80Zn is the lightest N=50 isotone for which spectroscopic information has been obtained to date. Two sets of advanced shell model calculations reproduce the observed B(E2) systematics. The results for N=50 isotones indicate a good N=50 shell closure and a strong Z=28 proton core polarization. The new results serve as benchmarks to establish theoretical models, predicting the nuclear properties of the doubly magic nucleus 78Ni.
Collapse
Affiliation(s)
- J Van de Walle
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, Belgium
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Stefanescu I, Georgiev G, Ames F, Aystö J, Balabanski DL, Bollen G, Butler PA, Cederkäll J, Champault N, Davinson T, De Maesschalck A, Delahaye P, Eberth J, Fedorov D, Fedosseev VN, Fraile LM, Franchoo S, Gladnishki K, Habs D, Heyde K, Huyse M, Ivanov O, Iwanicki J, Jolie J, Jonson B, Kröll T, Krücken R, Kester O, Köster U, Lagoyannis A, Liljeby L, Lo Bianco G, Marsh BA, Niedermaier O, Nilsson T, Oinonen M, Pascovici G, Reiter P, Saltarelli A, Scheit H, Schwalm D, Sieber T, Smirnova N, Van De Walle J, Van Duppen P, Zemlyanoi S, Warr N, Weisshaar D, Wenander F. Coulomb excitation of 68,70Cu: first use of postaccelerated isomeric beams. Phys Rev Lett 2007; 98:122701. [PMID: 17501116 DOI: 10.1103/physrevlett.98.122701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Indexed: 05/15/2023]
Abstract
We report on the first low-energy Coulomb excitation measurements with radioactive Ipi=6- beams of odd-odd nuclei 68,70Cu. The beams were produced at ISOLDE, CERN and were post-accelerated by REX-ISOLDE to 2.83 MeV/nucleon. Gamma rays were detected with the MINIBALL spectrometer. The 6- beam was used to study the multiplet of states (3-, 4-, 5-, 6-) arising from the pi2p3/2 nu 1g9/2 configuration. The 4- state of the multiplet was populated via Coulomb excitation and the B(E2;6--->4-) value was determined in both nuclei. The results obtained illustrate the fragile stability of the Z=28 shell and N=40 subshell closures. A comparison with large-scale shell-model calculations using the 56Ni core shows the importance of the proton excitations across the Z=28 shell gap to the understanding of the nuclear structure in the neutron-rich nuclei with N approximately 40.
Collapse
Affiliation(s)
- I Stefanescu
- Instituut voor Kern- en Stralingsfysica, K. U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Schreiber J, Bell F, Grüner F, Schramm U, Geissler M, Schnürer M, Ter-Avetisyan S, Hegelich BM, Cobble J, Brambrink E, Fuchs J, Audebert P, Habs D. Analytical model for ion acceleration by high-intensity laser pulses. Phys Rev Lett 2006; 97:045005. [PMID: 16907584 DOI: 10.1103/physrevlett.97.045005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Indexed: 05/11/2023]
Abstract
We present a general expression for the maximum ion energy observed in experiments with thin foils irradiated by high-intensity laser pulses. The analytical model is based on a radially confined surface charge set up by laser accelerated electrons on the target rear side. The only input parameters are the properties of the laser pulse and the target thickness. The predicted maximum ion energy and the optimal laser pulse duration are supported by dedicated experiments for a broad range of different ions.
Collapse
Affiliation(s)
- J Schreiber
- Department für Physik, Ludwig-Maximilians-Universität München, Garching, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Niedermaier O, Scheit H, Bildstein V, Boie H, Fitting J, von Hahn R, Köck F, Lauer M, Pal UK, Podlech H, Repnow R, Schwalm D, Alvarez C, Ames F, Bollen G, Emhofer S, Habs D, Kester O, Lutter R, Rudolph K, Pasini M, Thirolf PG, Wolf BH, Eberth J, Gersch G, Hess H, Reiter P, Thelen O, Warr N, Weisshaar D, Aksouh F, Van den Bergh P, Van Duppen P, Huyse M, Ivanov O, Mayet P, Van de Walle J, Aystö J, Butler PA, Cederkäll J, Delahaye P, Fynbo HOU, Fraile LM, Forstner O, Franchoo S, Köster U, Nilsson T, Oinonen M, Sieber T, Wenander F, Pantea M, Richter A, Schrieder G, Simon H, Behrens T, Gernhäuser R, Kröll T, Krücken R, Münch M, Davinson T, Gerl J, Huber G, Hurst A, Iwanicki J, Jonson B, Lieb P, Liljeby L, Schempp A, Scherillo A, Schmidt P, Walter G. "Safe" Coulomb excitation of 30Mg. Phys Rev Lett 2005; 94:172501. [PMID: 15904283 DOI: 10.1103/physrevlett.94.172501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2004] [Indexed: 05/02/2023]
Abstract
We report on the first radioactive beam experiment performed at the recently commissioned REX-ISOLDE facility at CERN in conjunction with the highly efficient gamma spectrometer MINIBALL. Using 30Mg ions accelerated to an energy of 2.25 MeV/u together with a thin (nat)Ni target, Coulomb excitation of the first excited 2+ states of the projectile and target nuclei well below the Coulomb barrier was observed. From the measured relative deexcitation gamma-ray yields the B(E2;0(+)gs-->2(+)1) value of 30Mg was determined to be 241(31)e2 fm4. Our result is lower than values obtained at projectile fragmentation facilities using the intermediate-energy Coulomb excitation method, and confirms the theoretical conjecture that the neutron-rich magnesium isotope 30Mg resides outside the "island of inversion."
Collapse
Affiliation(s)
- O Niedermaier
- Max-Planck-Insitut für Kernphysik, Heidelberg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Habs D. The Munich Accelerator for Fission Fragments MAFF. ACTA ACUST UNITED AC 2005. [DOI: 10.1063/1.2140620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
30
|
Habs D. Design Considerations for Converting Laser-Accelerated Electron Beams into Brilliant X-Ray, γ-Ray and Neutron-Beams. ACTA ACUST UNITED AC 2005. [DOI: 10.1063/1.2140617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
31
|
Karsch S, Düsterer S, Schwoerer H, Ewald F, Habs D, Hegelich M, Pretzler G, Pukhov A, Witte K, Sauerbrey R. High-intensity laser induced ion acceleration from heavy-water droplets. Phys Rev Lett 2003; 91:015001. [PMID: 12906545 DOI: 10.1103/physrevlett.91.015001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2002] [Indexed: 05/24/2023]
Abstract
Fusion neutrons from a heavy water droplet target irradiated with laser pulses of 3 x 10(19) W/cm(2) and from a deuterated secondary target are observed by a time-of-flight (TOF) neutron spectrometer. The observed TOF spectrum can be explained by fusion of deuterium ions simultaneously originating from two different sources: ion acceleration in the laser focus by ponderomotively induced charge separation and target-normal sheath acceleration off the target rear surface. The experimental findings agree well with 3D particle-in-cell simulations.
Collapse
Affiliation(s)
- S Karsch
- Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Abstract
We report on the experimental realization of two- and three-dimensional crystalline ion beams in the rf quadrupole storage ring PALLAS (LMU, Munich). At a beam energy around 1 eV the phase transition to the Coulomb ordered state is identified by a sudden decrease of the spatial width and of the velocity spread of the beam. The focusing conditions required to attain crystalline beams up to structures of helices surrounding a string are systematically investigated and related to the situation in typical heavy ion storage rings.
Collapse
Affiliation(s)
- U Schramm
- Ludwig-Maximilians-Universität München, Sektion Physik, D-85748 Garching, Germany.
| | | | | |
Collapse
|
33
|
Hegelich M, Karsch S, Pretzler G, Habs D, Witte K, Guenther W, Allen M, Blazevic A, Fuchs J, Gauthier JC, Geissel M, Audebert P, Cowan T, Roth M. MeV ion jets from short-pulse-laser interaction with thin foils. Phys Rev Lett 2002; 89:085002. [PMID: 12190475 DOI: 10.1103/physrevlett.89.085002] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2001] [Indexed: 05/23/2023]
Abstract
Collimated jets of carbon and fluorine ions up to 5 MeV/nucleon ( approximately 100 MeV) are observed from the rear surface of thin foils irradiated with laser intensities of up to 5 x 10 (19)W/cm(2). The normally dominant proton acceleration could be surpressed by removing the hydrocarbon contaminants by resistive heating. This inhibits screening effects and permits effective energy transfer and acceleration of other ion species. The acceleration dynamics and the spatiotemporal distributions of the accelerating E fields at the rear surface of the target are inferred from the detailed spectra.
Collapse
Affiliation(s)
- M Hegelich
- MPI für Quantenoptik, 85748 Garching, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Abstract
By freezing out the motion between particles in a high-energy storage ring, it should be possible to create threads of ions, offering research opportunities beyond the realm of standard accelerator physics. The usual heating due to intra-beam collisions should completely vanish, giving rise to a state of unprecedented brilliance. Despite a continuous improvement of beam cooling techniques, such as electron cooling and laser cooling, the ultimate goal of beam crystallization has not yet been reached in high-energy storage rings. Electron-cooled dilute beams of highly charged ions show liquid-like order with unique applications. An experiment using laser cooling suggested a reduction of intra-beam heating, although the results were ambiguous. Here we demonstrate the crystallization of laser-cooled Mg+ beams circulating in the radiofrequency quadrupole storage ring PALLAS at a velocity of 2,800 m s-1, which corresponds to a beam energy of 1 eV. A sudden collapse of the transverse beam size and the low longitudinal velocity spread clearly indicate the phase transition. The continuous ring-shaped crystalline beam shows exceptional stability, surviving for more than 3,000 revolutions without cooling.
Collapse
Affiliation(s)
- T Schätz
- Sektion Physik, LMU München, Garching, Germany
| | | | | |
Collapse
|
35
|
Thirolf PG, van der Werf SY, Ott J, Máté Z, Gulyás J, Csatlós M, Hunyadi M, Krasznahorkay A, Faestermann T, Metz A, Maier HJ, Hertenberger R, Graw G, Eisermann Y, Habs D, Gassmann D. Hyperdeformation and Clusterization in the Actinide Region. ACTA ACUST UNITED AC 2001. [DOI: 10.1556/aph.13.2001.1-3.12] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
36
|
Schramm U, Schüssler T, Habs D, Schwalm D, Wolf A. Laser-induced recombination studies with the adiabatically expanded electron beam of the Heidelberg TSR. ACTA ACUST UNITED AC 1996. [DOI: 10.1007/bf02274935] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
37
|
Amitay Z, Zajfman D, Forck P, Hechtfischer U, Seidel B, Grieser M, Habs D, Repnow R, Schwalm D, Wolf A. Dissociative recombination of CH+: Cross section and final states. Phys Rev A 1996; 54:4032-4050. [PMID: 9913951 DOI: 10.1103/physreva.54.4032] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
38
|
Miesner H, Grimm R, Grieser M, Habs D, Schwalm D, Wanner B, Wolf A. Efficient, Indirect Transverse Laser Cooling of a Fast Stored Ion Beam. Phys Rev Lett 1996; 77:623-626. [PMID: 10062861 DOI: 10.1103/physrevlett.77.623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
39
|
Lampert A, Wolf A, Habs D, Kenntner J, Kilgus G, Schwalm D, Pindzola MS, Badnell NR. High-resolution measurement of the dielectronic recombination of fluorinelike selenium ions. Phys Rev A 1996; 53:1413-1423. [PMID: 9913031 DOI: 10.1103/physreva.53.1413] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
40
|
Amitay Z, Zajfman D, Forck P, Heupel T, Grieser M, Habs D, Repnow R, Schwalm D, Wolf A, Guberman SL. Dissociative recombination of cold OH+: Evidence for indirect recombination through excited core Rydberg states. Phys Rev A 1996; 53:R644-R647. [PMID: 9913007 DOI: 10.1103/physreva.53.r644] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
41
|
Schüssler T, Schramm U, Rüter T, Broude C, Grieser M, Habs D, Schwalm D, Wolf A. Laser-stimulated recombination spectroscopy for the study of long-range interactions in highly charged Rydberg ions. Phys Rev Lett 1995; 75:802-805. [PMID: 10060122 DOI: 10.1103/physrevlett.75.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
42
|
Zajfman D, Amitay Z, Broude C, Forck P, Seidel B, Grieser M, Habs D, Schwalm D, Wolf A. Measurement of branching ratios for the dissociative recombination of cold HD+ using fragment imaging. Phys Rev Lett 1995; 75:814-817. [PMID: 10060125 DOI: 10.1103/physrevlett.75.814] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
43
|
Linkemann J, Müller A, Kenntner J, Habs D, Schwalm D, Wolf A, Badnell NR, Pindzola MS. Electron-impact ionization of Fe15+ ions: An ion storage ring cross section measurement. Phys Rev Lett 1995; 74:4173-4176. [PMID: 10058434 DOI: 10.1103/physrevlett.74.4173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
44
|
Forck P, Broude C, Grieser M, Habs D, Kenntner J, Liebmann J, Repnow R, Schwalm D, Wolf A, Amitay Z, Zajfman D. New resonances in the dissociative recombination of vibrationally cold CD+. Phys Rev Lett 1994; 72:2002-2005. [PMID: 10055763 DOI: 10.1103/physrevlett.72.2002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
45
|
Schmidt HT, Forck P, Grieser M, Habs D, Kenntner J, Miersch G, Repnow R, Schramm U, Schüssler T, Schwalm D, Wolf A. High-precision measurement of the magnetic-dipole decay rate of metastable heliumlike carbon ions in a storage ring. Phys Rev Lett 1994; 72:1616-1619. [PMID: 10055657 DOI: 10.1103/physrevlett.72.1616] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
46
|
Meltzow B, Warburton EK, Ender C, Gerl J, Habs D, Lauff U, Schirmer J, Schwalm D, Thirolf P. Measurement and significance of Gamma gamma / Gamma for the 7117-keV 4(+) level of 18O. Phys Rev C Nucl Phys 1994; 49:743-749. [PMID: 9969280 DOI: 10.1103/physrevc.49.743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
47
|
Petrich W, Grieser M, Grimm R, Gruber A, Habs D, Miesner H, Schwalm D, Wanner B, Wernoe H, Wolf A, Grieser R, Huber G, Klein R, Kühl T, Neumann R, Schröder S. Laser cooling of stored high-velocity ions by means of the spontaneous force. Phys Rev A 1993; 48:2127-2144. [PMID: 9909834 DOI: 10.1103/physreva.48.2127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
48
|
Kilgus G, Habs D, Schwalm D, Wolf A, Schuch R, Badnell NR. Dielectronic recombination from the ground state of heliumlike carbon ions. Phys Rev A 1993; 47:4859-4864. [PMID: 9909516 DOI: 10.1103/physreva.47.4859] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
49
|
Forck P, Grieser M, Habs D, Lampert A, Repnow R, Schwalm D, Wolf A, Zajfman D. Dissociative recombination of cold HD+ at the Test Storage Ring. Phys Rev Lett 1993; 70:426-429. [PMID: 10054109 DOI: 10.1103/physrevlett.70.426] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
50
|
Wolf A, Habs D, Lampert A, Neumann R, Schramm U, Schüssler T, Schwalm D. Electron-ion recombination in merged beams. ACTA ACUST UNITED AC 1993. [DOI: 10.1063/1.43775] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|