Measurement of 235U(n, n′γ) and 235U(n, 2nγ) reaction cross sections

被引：25

作者：

Kerveno, M. ^{[1
]}

Thiry, J. C. ^{[1
]}

Bacquias, A. ^{[1
]}

Borcea, C. ^{[2
]}

Dessagne, P. ^{[1
]}

Drohe, J. C. ^{[3
]}

Goriely, S. ^{[4
]}

Hilaire, S. ^{[5
]}

Jericha, E. ^{[6
]}

Karam, H. ^{[1
]}

Negret, A. ^{[2
]}

Pavlik, A. ^{[7
]}

Plompen, A. J. M. ^{[3
]}

Romain, P. ^{[5
]}

Rouki, C. ^{[3
]}

Rudolf, G. ^{[1
]}

Stanoiu, M. ^{[2
]}

机构：

[1] Univ Strasbourg, CNRS, IPHC, UMR7178, F-67037 Strasbourg, France

[2] Natl Inst Phys & Nucl Engn Horia Hulubei, Bucharest 077125, Romania

[3] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium

[4] Univ Libre Bruxelles, Inst Astron & Astrophys, BE-1050 Brussels, Belgium

[5] CEA, DAM, DIF, F-91297 Arpajon, France

[6] Vienna Univ Technol, Atominst, A-1020 Vienna, Austria

[7] Univ Vienna, Fac Phys, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW C | 2013年 / 87卷 / 02期

关键词：

NEUTRON; COMPOUND; NUCLEON; GELINA;

D O I：

10.1103/PhysRevC.87.024609

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The design of generation IV nuclear reactors and the studies of new fuel cycles require knowledge of the cross sections of various nuclear reactions. Our research is focused on (n, xn gamma) reactions occurring in these new reactors. The aim is to measure unknown cross sections and to reduce the uncertainty on present data for reactions and isotopes of interest for transmutation or advanced reactors. The present work studies the U-235(n, n'gamma) and U-235(n, 2n gamma) reactions in the fast neutron energy domain (up to 20 MeV). The experiments were performed with the Geel electron linear accelerator GELINA, which delivers a pulsed white neutron beam. The time characteristics enable measuring neutron energies with the time-of-flight (TOF) technique. The neutron induced reactions [in this case inelastic scattering and ( n, 2n) reactions] are identified by on- line prompt gamma spectroscopy with an experimental setup including four high-purity germanium (HPGe) detectors. A fission ionization chamber is used to monitor the incident neutron flux. The experimental setup and analysis methods are presented and the model calculations performed with the TALYS-1.2 code are discussed. DOI: 10.1103/PhysRevC.87.024609

引用

页数：12

共 37 条

[1] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[2] Impact of nuclear data uncertainties on transmutation of actinicles in accelerator-driven assemblies [J].

Aliberti, G ;

Palmiotti, G ;

Salvatores, M ;

Stenberg, CG .

NUCLEAR SCIENCE AND ENGINEERING, 2004, 146 (01) :13-50

[3]

Arnold L., 2005, P REAL TIM C 14 IEEE, P265

[4] 239Pu(n,2n)238Pu cross section deduced using a combination of experiment and theory -: art. no. 021601 [J].

Bernstein, LA ;

Becker, JA ;

Garrett, PE ;

Younes, W ;

McNabb, DP ;

Archer, DE ;

McGrath, CA ;

Chen, H ;

Ormand, WE ;

Stoyer, MA ;

Nelson, RO ;

Chadwick, MB ;

Johns, GD ;

Wilburn, WS ;

Devlin, M ;

Drake, DM ;

Young, PG .

PHYSICAL REVIEW C, 2002, 65 (02) :216011-216015

[5] Gaussian quadrature applied to experimental γ-ray yields [J].

Brune, CR .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 493 (1-2) :106-110

[6] ASSAYING OF TARGETS FOR NUCLEAR MEASUREMENTS WITH A GRIDDED IONIZATION-CHAMBER [J].

BUDTZJORGENSEN, C ;

KNITTER, HH ;

BORTELS, G .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 236 (03) :630-640

[7] EFFECT OF FRAGMENT ANISOTROPY ON FISSION-CHAMBER EFFICIENCY [J].

CARLSON, GW .

NUCLEAR INSTRUMENTS & METHODS, 1974, 119 (01) :97-100

[8] The gamma efficiency of the GAINS spectrometer [J].

Deleanu, D. ;

Borcea, C. ;

Dessagne, Ph ;

Kerveno, M. ;

Negret, A. ;

Plompen, A. J. M. ;

Thiry, J. C. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 624 (01) :130-136

[9] Global characterisation of the GELINA facility for high-resolution neutron time-of-flight measurements by Monte Carlo simulations [J].

Ene, D. ;

Borcea, C. ;

Kopecky, S. ;

Mondelaers, W. ;

Negret, A. ;

Plompen, A. J. M. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 618 (1-3) :54-68

[10] THE STATISTICAL-THEORY OF MULTISTEP COMPOUND AND DIRECT REACTIONS [J].

FESHBACH, H ;

KERMAN, A ;

KOONIN, S .

ANNALS OF PHYSICS, 1980, 125 (02) :429-476

← 1 2 3 4 →