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Kaliman Z, Pisk K. Relativistic effects in double ionization of helium via Compton scattering. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2016.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Liertzer M, Feist J, Nagele S, Burgdörfer J. Multielectron transitions induced by neutron impact on helium. PHYSICAL REVIEW LETTERS 2012; 109:013201. [PMID: 23031102 DOI: 10.1103/physrevlett.109.013201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Indexed: 06/01/2023]
Abstract
We explore excitation and ionization by neutron impact as a novel tool for the investigation of electron-electron correlations in helium. We present single- and double-ionization spectra calculated in accurate numerical ab initio simulations for incoming neutrons with kinetic energies of up to 150 keV. The resulting electron spectra are found to be fundamentally different from photoionization or charged particle impact due to the intrinsic many-body character of the interaction. In particular, doubly excited resonances that are strongly suppressed in electron or photon impact become prominent. The ratio of double to single ionization is found to differ significantly from those of photon and charged-particle impact.
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Affiliation(s)
- M Liertzer
- Institute for Theoretical Physics, Vienna University of Technology, 1040 Vienna, Austria, EU
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Mikhailov AI, Nefiodov AV, Plunien G. Double ionization of lithiumlike ions by Compton scattering of high-energy photons. PHYSICAL REVIEW LETTERS 2006; 97:233003. [PMID: 17280200 DOI: 10.1103/physrevlett.97.233003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2006] [Indexed: 05/13/2023]
Abstract
The double ionization of lithiumlike ions by Compton scattering of photons is investigated in the asymptotic high-energy region. To leading order of the nonrelativistic perturbation theory, the total cross section for double Compton effect is calculated, taking into account the channels of simultaneous and sequential emission of two electrons. Relationships between the cross sections for double ionization of He- and Li-like ions with the same nuclear charge Z are established. This can open wide perspectives for experimental investigations of ionization processes involving low-lying excited states. The universal scaling is found for the ratio of double-to-single ionization in the lithium isoelectronic sequence.
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Affiliation(s)
- A I Mikhailov
- Petersburg Nuclear Physics Institute, 188300 Gatchina, St. Petersburg, Russia
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Dörner R, Schmidt-Böcking H, Weber T, Jahnke T, Schöffler M, Knapp A, Hattass M, Czasch A, Ph. H. Schmidt L, Jagutzki O. Double ionization by one and many photons. Radiat Phys Chem Oxf Engl 1993 2004. [DOI: 10.1016/j.radphyschem.2003.12.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Schmidt HT, Fardi A, Schuch R, Schwartz SH, Zettergren H, Cederquist H, Bagge L, Danared H, Källberg A, Jensen J, Rensfelt KG, Mergel V, Schmidt L, Schmidt-Böcking H, Cocke CL. Double-to-single target ionization ratio for electron capture in fast p-He collisions. PHYSICAL REVIEW LETTERS 2002; 89:163201. [PMID: 12398718 DOI: 10.1103/physrevlett.89.163201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2001] [Indexed: 05/24/2023]
Abstract
We have used the ion storage ring CRYRING and its internal gas-jet target and recoil-ion-momentum spectrometer to measure absolute cross sections for transfer ionization (TI: p+He-->H0+He2++e(-)) in 2.5-4.5 MeV p-He collisions with separate Thomas (TTI) and kinematic (KTI) TI contributions. The probability for electron emission in kinematical capture decreases with increasing velocity and appears to approach the photoionization shakeoff value (1.63%) [T. Aberg, Phys. Rev. A 2, 1726 (1970)]]. The velocity dependence of the TTI cross section is consistent with the theoretically predicted v(-11) scaling [J. S. Briggs and K. Taulbjerg, J. Phys. B 12, 2565 (1979)]].
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Affiliation(s)
- H T Schmidt
- Department of Physics, Stockholm University, Sweden
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McGuire JH, Wang J, Burgdörfer J. Relating data for charged particle scattering, photoannihilation, and Compton scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 54:3668-3670. [PMID: 9913897 DOI: 10.1103/physreva.54.3668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Wang J, McGuire JH, Burgdörfer J, Qiu Y. Differential Double Ionization of He by Compton Photons and Charged Particles at Large Energy Transfers. PHYSICAL REVIEW LETTERS 1996; 77:1723-1726. [PMID: 10063155 DOI: 10.1103/physrevlett.77.1723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wang J, McGuire JH, Burgdörfer J, Qiu Y. Consistency test of double ionization of helium by photons and charged particles. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 54:613-616. [PMID: 9913514 DOI: 10.1103/physreva.54.613] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Spielberger L, Jagutzki O, Krässig B, Meyer U, Khayyat K, Mergel V, Tschentscher T, Buslaps T, Bräuning H, Dörner R, Vogt T, Achler M, Ullrich J, Gemmell DS, Schmidt-Böcking H. Double and single ionization of helium by 58-keV x rays. PHYSICAL REVIEW LETTERS 1996; 76:4685-4688. [PMID: 10061355 DOI: 10.1103/physrevlett.76.4685] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wu W, Datz S, Jones NL, Krause HF, Rosner B, Sorge KD, Vane CR. Double ionization of He by fast protons at large energy transfer. PHYSICAL REVIEW LETTERS 1996; 76:4324-4327. [PMID: 10061261 DOI: 10.1103/physrevlett.76.4324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Kornberg MA, Miraglia JE. Compton-scattering contribution to the double ionization of He in the A2 approximation. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:R3709-R3712. [PMID: 9913448 DOI: 10.1103/physreva.53.r3709] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Wehlitz R, Hentges R, Prümper G, Farhat A, Buslaps T, Berrah N, Levin JC, Sellin IA, Becker U. Compton double-to-single ionization ratio of helium at 57 keV. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:R3720-R3722. [PMID: 9913451 DOI: 10.1103/physreva.53.r3720] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Gervais B, Reinhold CO, Burgdörfer J. Simulation of excited-state formation of hydrogen in transmission of relativistic H- ions through thin foils. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:3189-3200. [PMID: 9913261 DOI: 10.1103/physreva.53.3189] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Levin JC, Armen GB, Sellin IA. Photoionization and Compton double ionization of helium from threshold to 20 keV. PHYSICAL REVIEW LETTERS 1996; 76:1220-1223. [PMID: 10061666 DOI: 10.1103/physrevlett.76.1220] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Sagurton M, Bartlett RJ, Samson JA, He ZX, Morgan D. Effect of Compton scattering on the double-to-single photoionization ratio in helium. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 52:2829-2834. [PMID: 9912565 DOI: 10.1103/physreva.52.2829] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Spielberger L, Jagutzki O, Dörner R, Ullrich J, Meyer U, Mergel V, Unverzagt M, Damrau M, Vogt T, Ali I, Khayyat K, Bahr D, Schmidt HG, Frahm R, Schmidt-Böcking H. Separation of photoabsorption and Compton scattering contributions to He single and double ionization. PHYSICAL REVIEW LETTERS 1995; 74:4615-4618. [PMID: 10058555 DOI: 10.1103/physrevlett.74.4615] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wang J, McGuire JH, Burgdörfer J. Relationship between the ratios of double to single ionization of helium by photons and charged particles. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 51:4687-4693. [PMID: 9912158 DOI: 10.1103/physreva.51.4687] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Bergstrom PM, Hino K, Macek JH. Two-electron ejection from helium by Compton scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 51:3044-3052. [PMID: 9911940 DOI: 10.1103/physreva.51.3044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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