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Preequilibrium models for 58Ni (n, xp) and 60Ni (n, xp) reactions in neutrons at 8, 9, 9.4, 11 and 14.8 MeV using the EMPIRE and TALYS codes. Appl Radiat Isot 2023; 193:110643. [PMID: 36599204 DOI: 10.1016/j.apradiso.2022.110643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/10/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022]
Abstract
In this study, the calculations of proton emission spectra produced by 58Ni (n, xp) and 60Ni (n, xp) reactions are used in the framework of preequilibrium models with the EMPIRE and TALYS codes. Exciton Model predictions combined with the Kalbach angular distributions systematics, quantum-mechanical preequilibrium models (Multi-step Direct (MSD) theory and Multi-step Compound (MSC) processes) were used, and some necessary parameters have been investigated for our calculations. The comparison with experimental data shows clear improvement over the Exciton and quantum-mechanical preequilibrium models calculations.
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2
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Tel E, Bülbül A, Yiğit M, Sarpün İH, Kavun Y. Simple parametrization of (n,d) cross sections using Flerov and Talyzin's formula. Appl Radiat Isot 2023; 192:110613. [PMID: 36527852 DOI: 10.1016/j.apradiso.2022.110613] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/01/2022] [Accepted: 12/08/2022] [Indexed: 12/13/2022]
Abstract
This article aims at providing new cross section data from empirical formulas for the (n,d) reactions of which experimental measurements at 14-15 MeV energy are not available or limited. If the experimental data for a nuclear reaction at a given energy are scarce, theoretical calculations and also developing empirical formulas have a critical importance. Here, we propose a new empirical formula of (n,d) reactions for analysis of the relationship between the experimental data and the parameters of empirical formula. The present formula was obtained by using the non-elastic Flerov and Talyzin expression to calculate (n,d) cross sections at 14-15 MeV. Due to the good overall agreement with the measured cross sections, our empirical formula with polynomial fitting model including asymmetry parameter can be useful in planning new experiments of (n,d) reactions for energies around 14 MeV.
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Affiliation(s)
- Eyyup Tel
- Department of Physics, Faculty of Arts and Sciences, Osmaniye Korkut Ata University, 80000, Osmaniye, Turkey
| | - Ahmet Bülbül
- Department of Physics, Faculty of Arts and Sciences, Osmaniye Korkut Ata University, 80000, Osmaniye, Turkey
| | - Mustafa Yiğit
- Department of Physics, Faculty of Arts and Sciences, Aksaray University, 68100, Aksaray, Turkey.
| | - İsmail Hakkı Sarpün
- Department of Physics, Science Faculty, Akdeniz University, 07070, Antalya, Turkey
| | - Yusuf Kavun
- Department of Medical Imaging Techniques, Kahramanmaras Sutcu Imam University, 46050, Kahramanmaras, Turkey
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3
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The New Physics in LILITA_N21: An Improved Description of the Reaction 190 MeV 40Ar + 27Al. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this paper, light charged particle emission in the evaporation residue channel for the 190 MeV 40Ar + 27Al reaction leading to 67Ga composite nuclei at Ex = 91 MeV and angular momentum up to 46 ℏ has been re-analyzed. The main goal was to study the decay of 67Ga on the basis of an extended set of observables in order to provide a description of the evaporative decay cascades using the multistep Monte Carlo approach. The proton and α-particle energy spectra along with their angular distributions and ratios of differential multiplicities have been considered. The measured observables were compared with statistical model calculations. Having used a single-step Monte Carlo approach and standard parameters decades ago, the model does not provide a good description of the full dataset. Only a subset of the data was reproduced by assuming emitting nuclei with very large deformed shapes in a previous work published in the late 1980s. In the reported analysis, better agreement has been observed. Using the new transmission coefficients from the Optical Model, the parameters of which have recently been derived, the multi-step approach and the introduction of a nuclear shape description based on the nuclear stratosphere allowed us to realize a significant improvement.
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4
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Whitehead TR, Lim Y, Holt JW. Global Microscopic Description of Nucleon-Nucleus Scattering with Quantified Uncertainties. PHYSICAL REVIEW LETTERS 2021; 127:182502. [PMID: 34767381 DOI: 10.1103/physrevlett.127.182502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 08/25/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
We develop for the first time a microscopic global nucleon-nucleus optical potential with quantified uncertainties suitable for analyzing nuclear reaction experiments at next-generation rare-isotope beam facilities. Within the improved local density approximation and without any adjustable parameters, we begin by computing proton-nucleus and neutron-nucleus optical potentials from a set of five nuclear forces from chiral effective field theory for 1800 target nuclei in the mass range 12≤A≤242 for energies between 0 MeV<E≲150 MeV. We then parameterize a global optical potential for each chiral force that depends smoothly on the projectile energy as well as the target nucleus mass number and isospin asymmetry. Uncertainty bands for elastic scattering observables are generated from a full covariance analysis of the parameters entering in the description of our global optical potential and benchmarked against existing experimental data for stable target nuclei. Since our approach is purely microscopic, we anticipate a similar quality of the model for nucleon scattering on unstable isotopes.
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Affiliation(s)
- T R Whitehead
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
- Facility for Rare Isotope Beams, Michigan State University, Michigan 48824, USA
| | - Y Lim
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Department of Science Education, Ewha Womans University, Seoul 120-750, Korea
| | - J W Holt
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
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5
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Avrigeanu V, Avrigeanu M. The dark side of alpha-particle optical potential: Emission from excited nuclei. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202023903020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Further analysis of α-particle emission from similar nuclei excited in neutron- as well as low-energy proton-induced reactions is involved concerning a possible difference between the optical model potentials (OMPs) which describe either alpha-particle elastic scattering and induced reactions or alpha-emission from excited compound nuclei. The key role of the pickup direct interaction is finally proved even at incident energies below ~10 MeV, as well as being eventually at the origin of the above-mentioned OMPs difference.
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6
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Excitation Functions Calculations of the Charged Particle-Induced Nuclear Reactions on the 9Be Target. JOURNAL OF FUSION ENERGY 2017. [DOI: 10.1007/s10894-017-0137-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Yamamuro N, Udagawa K, Natsume T. Calculation of Capture Cross Sections and Gamma-Ray Spectra Following the Interaction of Neutrons with181Ta and197Au. NUCL SCI ENG 2017. [DOI: 10.13182/nse87-a16382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nobuhiro Yamamuro
- Nippon Atomic Industry Group Company, Ltd., NAIG Nuclear Research Laboratory, Ukishima-cho, Kawasaki-ku, Kawasaki 210, Japan
| | - Kazuyuki Udagawa
- Tokyo Institute of Technology, Research Laboratory for Nuclear Reactors, O-okayama, Meguro-ku, Tokyo 152, Japan
| | - Toshihiro Natsume
- Tokyo Institute of Technology, Research Laboratory for Nuclear Reactors, O-okayama, Meguro-ku, Tokyo 152, Japan
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Walter G, Leugers B, Käppeler F, Bao ZY, Reffo G, Fabbri F. Kilo-Electron-Volt Neutron Capture Cross Sections of the Krypton Isotopes. NUCL SCI ENG 2017. [DOI: 10.13182/nse86-a18471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- G. Walter
- Kernforschungszentrum Karlsruhe GmbH, Institut für Kernphysik, Postfach 3640 D-7500 Karlsruhe 1, Federal Republic of Germany
| | - B. Leugers
- Kernforschungszentrum Karlsruhe GmbH, Institut für Kernphysik, Postfach 3640 D-7500 Karlsruhe 1, Federal Republic of Germany
| | - F. Käppeler
- Kernforschungszentrum Karlsruhe GmbH, Institut für Kernphysik, Postfach 3640 D-7500 Karlsruhe 1, Federal Republic of Germany
| | - Z. Y. Bao
- Kernforschungszentrum Karlsruhe GmbH, Institut für Kernphysik, Postfach 3640 D-7500 Karlsruhe 1, Federal Republic of Germany
| | - G. Reffo
- Laboratorio Dati Nucleari, Ente Nazionale per l’Energie Alternative, Bologna, Italy
| | - F. Fabbri
- Laboratorio Dati Nucleari, Ente Nazionale per l’Energie Alternative, Bologna, Italy
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9
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Kawano T, Fröhner FH. Partial-Wave Analysis with the Optical Model for the Resolved and Unresolved Resonance Regions of56Fe. NUCL SCI ENG 2017. [DOI: 10.13182/nse97-a28592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Toshihiko Kawano
- Kyushu University, Energy Conversion Engineering 6-1, Kasuga-kouen, Kasuga 816, Japan
| | - Fritz H. Fröhner
- Forschungszentrum Karlsruhe Institut für Neutronenphysik und Reaktortechnik Postfach 3640, D-76021 Karlsruhe, Germany
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Strohmaier B, Uhl M, Matthes WK. Application of Nuclear Reaction Models for Neutron Nuclear Data Evaluation: Statistical and Optical Model Calculations for 134–138Ba. NUCL SCI ENG 2017. [DOI: 10.13182/nse78-a27164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- B. Strohmaier
- Institut für Radiumforschung und Kernphysik, Boltzmanngasse 3, A-1090, Vienna, Austria
| | - M. Uhl
- Institut für Radiumforschung und Kernphysik, Boltzmanngasse 3, A-1090, Vienna, Austria
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11
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Bĕták E, Droste E, Mikołajewski S, Ratyński W, Rurarz E, Kempisty T, Raman S. Activation Cross Sections for Reactions Induced by 14.7-MeV Neutrons on Natural Calcium and Enriched44Ca Targets. NUCL SCI ENG 2017. [DOI: 10.13182/nse99-a2064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Emil Bĕták
- Institute of Physics, Slovak Academy of Sciences, 842 28 Bratislava, Slovakia
| | - Ewa Droste
- Andrzej Sołtan Institute for Nuclear Studies, PL-05-400 Otwock–Świerk, Poland
| | - Stefan Mikołajewski
- Andrzej Sołtan Institute for Nuclear Studies, PL-05-400 Otwock–Świerk, Poland
| | - Wojciech Ratyński
- Andrzej Sołtan Institute for Nuclear Studies, PL-05-400 Otwock–Świerk, Poland
| | - Edward Rurarz
- Andrzej Sołtan Institute for Nuclear Studies, PL-05-400 Otwock–Świerk, Poland
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12
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Suita JC, da Silva AG, Auler LT, de Barros S. Neutron-Induced Reaction Cross Sections between 9 and 14 MeV. NUCL SCI ENG 2017. [DOI: 10.13182/nse97-a24461] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Julio Cezar Suita
- Instituto de Engenharia Nuclear—C.N.E.N., Cidade Universitaria P.O. Box 68550, 21945.970—Rio de Janeiro, Brazil
| | - Arthur Gerbasi da Silva
- Instituto de Engenharia Nuclear—C.N.E.N., Cidade Universitaria P.O. Box 68550, 21945.970—Rio de Janeiro, Brazil
| | - Luiz Telmo Auler
- Instituto de Engenharia Nuclear—C.N.E.N., Cidade Universitaria P.O. Box 68550, 21945.970—Rio de Janeiro, Brazil
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13
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Madland DG, Nix JR. New Calculation of Prompt Fission Neutron Spectra and Average Prompt Neutron Multiplicities. NUCL SCI ENG 2017. [DOI: 10.13182/nse82-5] [Citation(s) in RCA: 269] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- David G. Madland
- Los Alamos National Laboratory, Theoretical Division P.O. Box 1663, Los Alamos, New Mexico 87545
| | - J. Rayford Nix
- Los Alamos National Laboratory, Theoretical Division P.O. Box 1663, Los Alamos, New Mexico 87545
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14
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Fu CY. Approximation of Precompound Effects in Hauser-Feshbach Codes for Calculating Double Differential (n, xn) Cross Sections. NUCL SCI ENG 2017. [DOI: 10.13182/nse88-a29015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. Y. Fu
- Oak Ridge National Laboratory, P.O. Box X, Oak Ridge, Tennessee 37831
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15
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Gul K. Calculations for the Excitation Functions of Reactions Induced in63Cu by Neutrons in the 1- to 20-MeV Energy Range. NUCL SCI ENG 2017. [DOI: 10.13182/nse00-a2157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Gul
- Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan
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16
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Azam M, Gowda RS. Scattering of Intermediate-Energy Neutrons from Nuclei and the Ramsauer Hypothesis. NUCL SCI ENG 2017. [DOI: 10.13182/nse03-a2344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mofazzal Azam
- Bhabha Atomic Research Center, Theoretical Physics Division Central Complex, Trombay, Mumbai-400085, India
| | - Rajesh S. Gowda
- Bhabha Atomic Research Center, Theoretical Physics Division Central Complex, Trombay, Mumbai-400085, India
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17
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Gowda RS, Ganesan S. Investigation of the Ramsauer Model for the Prediction of Neutron Cross Sections below 120 MeV. NUCL SCI ENG 2017. [DOI: 10.13182/nse06-a2559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. S. Gowda
- Bhabha Atomic Research Center, Reactor Physics Design Division Engineering Hall 1, Trombay, Mumbai-400085, India
| | - S. Ganesan
- Bhabha Atomic Research Center, Reactor Physics Design Division Engineering Hall 1, Trombay, Mumbai-400085, India
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18
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Bhike M, Saxena A, Roy BJ, Choudhury RK, Kailas S, Ganesan S. Measurement of67Zn(n,p)67Cu,92Mo(n,p)92mNb, and98Mo(n,γ)99Mo Reaction Cross Sections at Incident Neutron Energies ofEn= 1.6 and 3.7 MeV. NUCL SCI ENG 2017. [DOI: 10.13182/nse163-175] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Megha Bhike
- Bhabha Atomic Research Centre, Nuclear Physics Division Mumbai 400 085, India
| | - A. Saxena
- Bhabha Atomic Research Centre, Nuclear Physics Division Mumbai 400 085, India
| | - B. J. Roy
- Bhabha Atomic Research Centre, Nuclear Physics Division Mumbai 400 085, India
| | - R. K. Choudhury
- Bhabha Atomic Research Centre, Nuclear Physics Division Mumbai 400 085, India
| | - S. Kailas
- Bhabha Atomic Research Centre, Nuclear Physics Division Mumbai 400 085, India
| | - S. Ganesan
- Bhabha Atomic Research Centre, Reactor Physics Design Division Mumbai 400 085, India
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19
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Tel E, Sahan M, Sarpün IH, Kavun Y, Gök AA, Depedelen M. Proton bombarded reactions of Calcium target nuclei. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201715401003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Kalamara A, Vlastou R, Kokkoris M, Diakaki M, Serris M, Patronis N, Axiotis M, Lagoyannis A. Cross section of the 197Au(n,2n) 196Au reaction. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201714611048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Ichinkhorloo D, Aikawa M, Chiba S, Hirabayashi Y, Katō K. The scattering cross sections for 6,7Li + nreactions. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201612208005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Tel E, Şahan M, Uğur FA, Şahan H, Aydin A. Investigation of cross sections of reactions used in neutron activation analysis. KERNTECHNIK 2013. [DOI: 10.3139/124.110115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
In this study, neutron incident reaction cross sections for some target nuclei such as 24Mg, 27Al, 28Si, 56Fe, and 63Cu used in neutron activation analysis have been investigated. The new calculations on the excitation functions of 24Mg(n, p)24Na, 27Al(n, p)27Mg, 27Al(n, α)24Na, 28Si(n, p)28Al, 56Fe(n, p)56Mn, and 63Cu(n, 2n)62Cu reactions have been carried out for incident neutron energies up to 20 MeV. In these calculations, the pre-equilibrium and equilibrium effects have been investigated. The pre-equilibrium calculations involve the new geometry dependent hybrid model and the full exciton model. Equilibrium effects are calculated according to the Weisskopf–Ewing model. In the present work, reaction cross-sections have been calculated by using empirical formulas developed for energies of 14–15 MeV. The calculated results are discussed and compared with the experimental data taken from the EXFOR database.
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Affiliation(s)
- E. Tel
- Department of Physics, Faculty of Sciences and Letters, University of Osmaniye Korkut Ata, Osmaniye, Turkey
| | - M. Şahan
- Department of Physics, Faculty of Sciences and Letters, University of Osmaniye Korkut Ata, Osmaniye, Turkey
| | - F. A. Uğur
- Department of Physics, Faculty of Sciences and Letters, University of Osmaniye Korkut Ata, Osmaniye, Turkey
| | - H. Şahan
- Department of Physics, Faculty of Sciences and Letters, University of Osmaniye Korkut Ata, Osmaniye, Turkey
| | - A. Aydin
- Faculty of Arts and Science, Kirikkale University, 71450 Kirikkale, Turkey
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The Study of (n,d) Reaction Cross Sections for Some Medium Weight Targets up to 30 MeV. JOURNAL OF FUSION ENERGY 2011. [DOI: 10.1007/s10894-010-9377-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Evaluation of excitation functions of proton, ³He- and α-particle induced reactions for production of the medically interesting positron-emitter bromine-76. Appl Radiat Isot 2011; 69:1490-505. [PMID: 21723137 DOI: 10.1016/j.apradiso.2011.06.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 05/25/2011] [Accepted: 06/05/2011] [Indexed: 11/21/2022]
Abstract
Cross section data for production of the medically interesting radionuclide ⁷⁶Br (T(½)=16.2 h) via the proton induced reactions on ⁷⁶Se, ⁷⁷Se, ⁷⁸Se and ⁷⁹Br, and ³He- and α-particle induced reactions on ⁷⁵As were evaluated. The nuclear model codes STAPRE, EMPIRE and TALYS were used to check the consistency in the experimental data and a statistical procedure was applied to derive the recommended excitation functions. A comparison of various production routes of ⁷⁶Br (and of ⁷⁵Br) is presented.
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25
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Tel E, Tatar A, Aydin A. Study of the pre-equilibrium mean free path constant for light and heavy nuclei for (n,xn) reactions. ANN NUCL ENERGY 2011. [DOI: 10.1016/j.anucene.2011.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Rajaprakash H, Sanjeev G, Vijay Kumar K, Siddappa K, Nayak B, Saxena A. Measurement of photofission excitation of 237NP. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.01.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Level studies of 93Mo via 93Nb(p, nγ)93Mo reaction and density of discrete levels in 93Mo. NUCLEAR TECHNOLOGY AND RADIATION PROTECTION 2011. [DOI: 10.2298/ntrp1101069r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The excited states of 93Mo have been investigated via the 93Nb(P,n?)93Mo
reaction with proton beam energies of 2.5-4.3 MeV. The parameters of the
nuclear level density formula were determined from the extensive and complete
level scheme of 93Mo. The Bethe formula for the back-shifted Fermi gas model
and the constant temperature model are compared with experimental level
densities.
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Uddin M, Scholten B, Hermanne A, Sudár S, Coenen H, Qaim S. Radiochemical determination of cross sections of α-particle induced reactions on 192Os for the production of the therapeutic radionuclide 193mPt. Appl Radiat Isot 2010; 68:2001-6. [DOI: 10.1016/j.apradiso.2010.05.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Revised: 05/05/2010] [Accepted: 05/05/2010] [Indexed: 10/19/2022]
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29
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Tel E, Şahan M, Aydın A, Bölükdemir M, Şahan H, Uğur FA. Investigation of Some Structural Fusion Materials for (n, α) Reactions at the 14–15 MeV Energy Region. JOURNAL OF FUSION ENERGY 2010. [DOI: 10.1007/s10894-010-9337-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Sarpün İH, Yalım HA, Ünal R, Oruncak B, Aydın A, Kaplan A, Tel E. Determination of (n,2n) Reaction Cross Sections for Some Nuclei with Asymmetry Parameter. JOURNAL OF FUSION ENERGY 2010. [DOI: 10.1007/s10894-010-9293-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Neutron Emission Spectra of Some Structural Fusion Materials at 26.8 and 45.2 MeV Alpha Incident Energies. JOURNAL OF FUSION ENERGY 2010. [DOI: 10.1007/s10894-010-9287-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Aslam MN, Sudár S, Hussain M, Malik AA, Shah HA, Qaim SM. Evaluation of excitation functions of proton and deuteron induced reactions on enriched tellurium isotopes with special relevance to the production of iodine-124. Appl Radiat Isot 2010; 68:1760-73. [PMID: 20338771 DOI: 10.1016/j.apradiso.2010.03.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 02/02/2010] [Accepted: 03/02/2010] [Indexed: 11/19/2022]
Abstract
Cross-section data for the production of medically important radionuclide (124)I via five proton and deuteron induced reactions on enriched tellurium isotopes were evaluated. The nuclear model codes, STAPRE, EMPIRE and TALYS, were used for consistency checks of the experimental data. Recommended excitation functions were derived using a well-defined statistical procedure. Therefrom integral yields were calculated. The various production routes of (124)I were compared. Presently the (124)Te(p,n)(124)I reaction is the method of choice; however, the (125)Te(p,2n)(124)I reaction also appears to have great potential.
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Affiliation(s)
- M N Aslam
- Department of Physics, Government College University, Lahore, Pakistan
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Aslam M, Sudár S, Hussain M, Malik AA, Shah HA, Qaim SM. Charged particle induced reaction cross section data for production of the emerging medically important positron emitter64Cu: A comprehensive evaluation. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2009.1670] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
AbstractThe radionuclide64Cu (T1/2=12.7 h) is an important non-standard positron emitter, suitable for combining PET imaging and targeted therapy. Its production in no-carrier-added form is doneviacharged particle induced reactions, and considerable amount of cross section data are available in the literature. We evaluated seven reactions, namely64Ni(p,n)64Cu,64Ni(d, 2n)64Cu,68Zn(p, αn)64Cu,66Zn(p, 2n)64Cu,64Zn(d, 2p)64Cu,66Zn(p, α)64Cu andnatZn(d,x)64Cu. Data analysis was generally limited up to about 25 MeV and the consistency check of experimental data was carried out using the nuclear model codes STAPRE, EMPIRE and TALYS. In a few cases experimental data were available up to 100 MeV; the consistency check in the high energy region was done only using the code TALYS. A statistical procedure (supported by nuclear model calculations) was then used to fit the data. The derived recommended sets of data, together with 95% confidence limits, are reported. The integral yields calculated from those data are also given. A critical comparison of the various production routes of64Cu is presented. The64Ni(p,n)64Cu reaction, utilizing a highly enriched target, is the method of choice.
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Affiliation(s)
- M. Aslam
- Pakistan Institute of Nuclear Science and Technology (PINSTECH), Health Physics Division, Islamabad, Pakistan
| | - S. Sudár
- University of Debrecen, Institute of Experimental Physics, Debrecen, Ungarn
| | - M. Hussain
- Government College University, Department of Physics, Lahore 54000, Pakistan
| | - A. A. Malik
- Government College University, Department of Physics, Lahore 54000, Pakistan
| | - H. A. Shah
- Government College University, Department of Physics, Lahore 54000, Pakistan
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The Study of (n,d) Reaction Cross Sections for New Evaluated Semi-Empirical Formula Using Optical Model. JOURNAL OF FUSION ENERGY 2009. [DOI: 10.1007/s10894-009-9211-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hussain M, Sudar S, Aslam M, Shah H, Ahmad R, Malik A, Qaim S. A comprehensive evaluation of charged-particle data for production of the therapeutic radionuclide 103Pd. Appl Radiat Isot 2009; 67:1842-54. [DOI: 10.1016/j.apradiso.2009.06.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 06/16/2009] [Accepted: 06/29/2009] [Indexed: 11/15/2022]
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Beták E, Mikołajczak R, Staniszewska J, Mikołajewski S, Rurarz E. Activation cross sections for reactions induced by 14 MeV neutrons on natural tin and enriched112Sn targets with reference to111In productionviaradioisotope generator112Sn(n, 2n)111Sn →111In. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.93.6.311.65644] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
SummaryWe measured activation cross sectionsviaγ-ray spectroscopy using high-purity germanium detectors for 16 reactions induced by (14.4 ± 0.2) MeV neutrons on isotopes of tin. The cross sections are:Two112Sn targets enriched to 62.5% and 84%, respectively, were used for these measurements in addition to the natural tin. The cross sections were compared with experimental data found in the literature, with published empirical formulae and with model calculations including also the pre-equilibrium contribution. For reactions which do not involve protons from below the closedZ= 50 shell, the agreement to the data is reasonable, it is somewhat weaker for the (n,p) reactions and still worse in the case of (n, α), where, however, the pre-equilibrium component is not described properly by the models included so far. The possibility of production of111Sn →111In generator system is considered.
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Bölükdemir MH, Tel E, Aktı NN, Aydın A, Okuducu Ş. Improved Formula for (n,3He) Fusion Reactions Cross Sections Using Optical Model. JOURNAL OF FUSION ENERGY 2009. [DOI: 10.1007/s10894-009-9220-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Gul K. Calculation of induced reactions of 3He-particles on natSb in 10–34MeV energy range. Appl Radiat Isot 2009; 67:30-3. [DOI: 10.1016/j.apradiso.2008.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 08/08/2008] [Accepted: 09/04/2008] [Indexed: 10/21/2022]
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Level studies of 73As via 73Ge(p, nγ)73As reaction and density of discrete levels in 73As. NUCLEAR TECHNOLOGY AND RADIATION PROTECTION 2009. [DOI: 10.2298/ntrp0902082b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The excited states of 73As have been investigated via the 73Ge(p, n?)73As reaction with the proton beam energies from 2.5-4.3 MeV. The parameters of the nuclear level density formula have been determined from the extensive and complete level scheme for 73As. The Bethe formula for the back-shifted Fermi gas model and the constant temperature model are compared with the experimental level densities.
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Equilibrium and pre-equilibrium calculations of neutron production in medium–heavy targets irradiated by protons up to 100MeV. ANN NUCL ENERGY 2008. [DOI: 10.1016/j.anucene.2008.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Benzi V, Maino G, Menapace E. On the fission probability for235U,239Pu and241Pu. ACTA ACUST UNITED AC 2007. [DOI: 10.1007/bf02763068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Pre-equilibrium processes in nuclear reaction theory: the state of the art and beyond. ACTA ACUST UNITED AC 2007. [DOI: 10.1007/bf02725961] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Sudár S, Cserpák F, Qaim SM. Measurements and nuclear model calculations on proton-induced reactions on 103Rh up to 40 MeV: evaluation of the excitation function of the 103Rh(p,n)103Pd reaction relevant to the production of the therapeutic radionuclide 103Pd. Appl Radiat Isot 2002; 56:821-31. [PMID: 12102338 DOI: 10.1016/s0969-8043(02)00054-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Excitation functions were measured by the stacked-foil technique for the reactions 103Rh(p,n)103Pd, 103Rh(p,3n)101Pd and 103Rh(p,4n)100Pd from their respective thresholds up to 39.6 MeV. The radioactivity of the activation products was determined by high-resolution X-ray and gamma-ray spectrometry. Statistical model calculations taking into account the precompound effects were performed for all reactions, and good agreement was found with our data. A critical evaluation of the existing and present data for the 103Rh(p,n)103Pd reaction was carried out. Recommended cross sections and integral yields for this reaction of key importance in the production of the widely used therapeutic radionuclide 103Pd are given.
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Affiliation(s)
- S Sudár
- Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, Germany
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Gul K. Nuclear Model Calculations for the Excitation Functions of Neutron-Induced Reactions on 58Ni in the Energy Range up to 20 MeV. NUCL SCI ENG 2002. [DOI: 10.13182/nse02-a2248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K Gul
- Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan
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46
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Neutrons and antimony: measurement, interpretation and evaluation. ANN NUCL ENERGY 2001. [DOI: 10.1016/s0306-4549(00)00072-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Ibn Majah M, Chiadli A, Sudár S, Qaim SM. Cross sections of (n,p), (n,alpha) and (n,2n) reactions on some isotopes of zirconium in the neutron energy range of 10-12 MeV and integral tests of differential cross section data using a 14 MeV d(Be) neutron spectrum. Appl Radiat Isot 2001; 54:655-62. [PMID: 11225702 DOI: 10.1016/s0969-8043(00)00299-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cross sections were measured for the 90Zr(n,alpha)87mSr, 90Zr(n,2n)89m,gZr, 91Zr(n,p)91mY, 92Zr(n,p)92Y, 94Zr(n,alpha)91Sr and 96Zr(n,2n)95Zr reactions over the neutron energy range of 11.4 to 12.4 MeV and for the 94Zr(n,p)94Y reaction from 9.2 to 12.4 MeV. Nuclear model calculations were performed up to 16MeV. The statistical model incorporating precompound effects reproduces excitation functions of the three major threshold reactions, namely (n,p), (n,alpha) and (n,2n), quite well. Spectrum averaged cross sections were measured using a thick target Be(d,n) neutron field at Ed = 14 MeV. For the same neutron field averaged reaction cross sections were deduced using the excitation functions measured in this work as well as those given in the ENDF/B-VI, JEF-2, JENDL-3.2, BROND and ADL-3 data files. A comparison of the experimental and deduced integral data helped validating the differential data.
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Affiliation(s)
- M Ibn Majah
- Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, Germany
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Kellie JD, Hall SJ, Crawford GI, Syme DBCB, McKeown J. The neutron total cross sections of some rare-earth elements between 0.7 MeV and 9.0 MeV. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0305-4470/7/14/008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Gul K. Calculations for the excitation functions of 3-26 MeV proton reactions on 66Zn, 67Zn and 68Zn. Appl Radiat Isot 2001; 54:311-8. [PMID: 11200894 DOI: 10.1016/s0969-8043(00)00289-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Calculation of excitation functions of 66Zn(p,n)66Ga, 66Zn(p,n + p)65Zn, 66Zn(p,2n)65Ga, 67Zn(p,2n)66Ga, 68Zn(p,n)68Ga, 68Zn(p,2n)67Ga natZn(p,xn)66Ga and natZn(p,xn)67Ga reactions has been carried out using the statistical and pre-equilibrium nuclear reaction models in the 3-26 MeV energy range. The calculational results are compared with the reported measurements and evaluations.
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Affiliation(s)
- K Gul
- Pakistan Institute of Nuclear Science and Technology, Islamabad.
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50
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Gul K. Calculations for the excitation functions of the 63Cu(p,n)63Zn, 63Cu(p, 2n)62Zn and 65Cu(p,n)65Zn reactions. Appl Radiat Isot 2001; 54:147-51. [PMID: 11144245 DOI: 10.1016/s0969-8043(00)00161-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Calculations for the excitation functions of 63Cu(p, n)63Zn, 63Cu(p, 2n)65Zn and 65Cu(p, n)65Zn reactions have been carried out in 3-30 MeV energy range using statistical and pre-equilibrium nuclear reaction models. The calculations have been compared with reported measurements and discussed.
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Affiliation(s)
- K Gul
- Pakistan Institute of Nuclear Science and Technology, Nilore, Islamabad.
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