Possible evidence of nonstatistical properties in the Cl35(n,&nbsp;p)S35 cross section

Batchelder, J. C.; Chong, S. -A.; Morrell, J.; Unzueta, M. Ayllon; Adams, P.; Bauer, J. D.; Bailey, T.; Becker, T. A.; Bernstein, L. A.; Fratoni, M.; Hurst, A. M.; James, J.; Lewis, A. M.; Matthews, E. F.; Negus, M.; Rutte, D.; Song, K.; Van Bibber, K.; Wallace, M.; Waltz, C. S.

doi:10.1103/PhysRevC.99.044612

Possible evidence of nonstatistical properties in the ${}^{35}{Cl} (n, p) {}^{35}S$ cross section

Journal Article · Thu Apr 25 00:00:00 EDT 2019 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.99.044612· OSTI ID:1579612

Batchelder, J. C. ^[1]; Chong, S. -A. ^[2]; Morrell, J. ^[1]; Unzueta, M. Ayllon ^[1]; Adams, P. ^[1]; Bauer, J. D. ^[3]; Bailey, T. ^[1]; Becker, T. A. ^[4]; Bernstein, L. A. ^[5]; Fratoni, M. ^[1]; Hurst, A. M. ^[1]; James, J. ^[1]; Lewis, A. M. ^[1]; Matthews, E. F. ^[1]; Negus, M. ^[1]; Rutte, D. ^[4]; Song, K. ^[6]; Van Bibber, K. ^[1]; Wallace, M. ^[1]; Waltz, C. S. ^[3]

Univ. of California, Berkeley, CA (United States)
Univ. of California, Berkeley, CA (United States); Univ. of Tennessee, Knoxville, TN (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Berkeley Geochronology Center, Berkeley, CA (United States)
Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Univ. of California, Berkeley, CA (United States); Xi'an Jiaotong Univ. (China)

In this work, the

{}^{35}{Cl} (n, p)

and

{}^{35}{Cl} (n, α)

cross sections at incident neutron energies between 2.42 and 2.74 MeV were measured using the Berkeley High Flux Neutron Generator. The cross sections for

{}^{35}{Cl} (n, p)

were more than a factor of 3 to 5 less than all of the values in the neutron absorption data libraries, while the

{}^{35}{Cl} (n, α)

cross sections are in reasonable agreement with the data libraries. Furthermore, the measured energy-differential cross section is consistent with a single resonance with a width of 293(46) keV. This finding indicates that, despite the high incident neutron energy, any attempt to model ($n, x$) cross sections in the vicinity of the $N = Z$ = 20 shell gap requires a resolved resonance approach rather than a Hauser-Feshbach approach.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC02-05CH11231; AC52-07NA27344

OSTI ID:: 1579612

Alternate ID(s):: OSTI ID: 1508870
OSTI ID: 1594916

Report Number(s):: LLNL-JRNL--751839; 936755

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 4 Vol. 99; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (40)

(n, p) Cross sections for27Al,28Si,31P,35Cl,39K, and52Cr at 14.1 MeV Aleksandrov, D. V.; Klochkova, L. I.; Kovrigin, B. S. Soviet Atomic Energy, Vol. 39, Issue 2 https://doi.org/10.1007/BF01129817	journal	August 1975
Cross section for31P(n, p)31Si reaction up to 5 MeV Cuzzocrea, P.; Pappalardo, G.; Ricamo, R. Il Nuovo Cimento, Vol. 16, Issue 3 https://doi.org/10.1007/BF02731908	journal	May 1960
Studio del livello a 8,20 MeV del C13 Ricamo, R. Il Nuovo Cimento, Vol. 8, Issue 11 https://doi.org/10.1007/BF02783011	journal	November 1951
Absolute neutron cross section measurements in the energy range between 2 and 5 MeV Hussain, H. A.; Hunt, S. E. The International Journal of Applied Radiation and Isotopes, Vol. 34, Issue 4 https://doi.org/10.1016/0020-708X(83)90252-1	journal	April 1983
The thermal neutron capture cross section and resonance capture integral of 35Cl for (n, γ) and (n, p) reactions Sims, G. H. E.; Juhnke, D. G. Journal of Inorganic and Nuclear Chemistry, Vol. 31, Issue 12 https://doi.org/10.1016/0022-1902(69)80288-5	journal	December 1969
Activation cross-sections for reaction of chlorine and copper with 14.8 MeV neutrons Scalan, R. S.; Fink, R. W. Nuclear Physics, Vol. 9, Issue 2 https://doi.org/10.1016/0029-5582(58)90406-1	journal	January 1958
Cross section measurements of the 58Ni(n, p)58Co and 29Si(n, α)26Mg reactions in the energy range 2.2 to 3.8 MeV Konijn, J.; Lauber, A. Nuclear Physics, Vol. 48 https://doi.org/10.1016/0029-5582(63)90156-1	journal	October 1963
Cross-sections for the 115In (n, n′) 115mIn reaction Heertje, I.; Nagel, W.; Aten, A. H. W. Physica, Vol. 30, Issue 4 https://doi.org/10.1016/0031-8914(64)90122-3	journal	April 1964
Some activation cross sections for 14 MeV neutrons Nagel, W.; Aten, A. H. W. Physica, Vol. 31, Issue 7 https://doi.org/10.1016/0031-8914(65)90152-7	journal	July 1965
Isomeric cross-section ratios and total cross sections for the 59Co(n, 2n)58g, mCo, 58Ni(n, p)58g, mCo and 59Co(γ, n)58g, mCo reactions Decowski, P.; Grochulski, W.; Marcinkowski, A. Nuclear Physics A, Vol. 112, Issue 3 https://doi.org/10.1016/0375-9474(68)90075-4	journal	May 1968
The 37Cl(3He, α)36Cl reaction and the 36S ground state analog Broman, Lars; Fou, C. M.; Rosner, Baruch Nuclear Physics A, Vol. 112, Issue 1 https://doi.org/10.1016/0375-9474(68)90229-7	journal	May 1968
The elastic scattering of fast neutrons by deuterons Bonner, B. E.; Paul, E. B.; Phillips, G. C. Nuclear Physics A, Vol. 128, Issue 1 https://doi.org/10.1016/0375-9474(69)90984-1	journal	April 1969
Measurements of activation cross sections of (n, p) and (n, α) reactions with d-D neutrons in the energy range of 2.1–3.1 MeV Shimizu, Toshiaki; Sakane, Hitoshi; Shibata, Michihiro Annals of Nuclear Energy, Vol. 31, Issue 9 https://doi.org/10.1016/j.anucene.2003.12.005	journal	June 2004
Beam-induced back-streaming electron suppression analysis for an accelerator type neutron generator designed for 40Ar/39Ar geochronology Waltz, Cory; Ayllon, Mauricio; Becker, Tim Applied Radiation and Isotopes, Vol. 125 https://doi.org/10.1016/j.apradiso.2017.04.017	journal	July 2017
ENDF/B-VII.0: Next Generation Evaluated Nuclear Data Library for Nuclear Science and Technology Chadwick, M. B.; Obložinský, P.; Herman, M. Nuclear Data Sheets, Vol. 107, Issue 12 https://doi.org/10.1016/j.nds.2006.11.001	journal	December 2006
Nuclear Data Sheets for A = 32 Ouellet, Christian; Singh, Balraj Nuclear Data Sheets, Vol. 112, Issue 9 https://doi.org/10.1016/j.nds.2011.08.004	journal	September 2011
Nuclear Data Sheets for A = 35 Chen, Jun; Cameron, John; Singh, Balraj Nuclear Data Sheets, Vol. 112, Issue 11 https://doi.org/10.1016/j.nds.2011.10.001	journal	November 2011
ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data Chadwick, M. B.; Herman, M.; Obložinský, P. Nuclear Data Sheets, Vol. 112, Issue 12 https://doi.org/10.1016/j.nds.2011.11.002	journal	December 2011
ENDF/B-VIII.0: The 8 th Major Release of the Nuclear Reaction Data Library with CIELO-project Cross Sections, New Standards and Thermal Scattering Data Brown, D. A.; Chadwick, M. B.; Capote, R. Nuclear Data Sheets, Vol. 148 https://doi.org/10.1016/j.nds.2018.02.001	journal	February 2018
Design, construction, and characterization of a compact DD neutron generator designed for 40Ar/39Ar geochronology Ayllon, Mauricio; Adams, Parker A.; Batchelder, Jon C. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 903 https://doi.org/10.1016/j.nima.2018.04.020	journal	September 2018
Measurement of the 64Zn,47Ti(n,p) cross sections using a DD neutron generator for medical isotope studies Voyles, A. S.; Basunia, M. S.; Batchelder, J. C. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 410 https://doi.org/10.1016/j.nimb.2017.08.021	journal	November 2017
A systematic investigation of reaction cross sections and isomer ratios for neutrons up to 20 MeV on Ni-isotopes and 59Co by measurements with the activation technique and new model studies of the underlying reaction mechanisms Semkova, V.; Avrigeanu, V.; Glodariu, T. Nuclear Physics A, Vol. 730, Issue 3-4 https://doi.org/10.1016/j.nuclphysa.2003.11.005	journal	January 2004
Innovations in the Analysis Code SAMMY Larson, N. M. Journal of Nuclear Science and Technology, Vol. 39, Issue sup2 https://doi.org/10.1080/00223131.2002.10875048	journal	August 2002
JENDL-4.0: A New Library for Nuclear Science and Engineering Shibata, Keiichi; Iwamoto, Osamu; Nakagawa, Tsuneo Journal of Nuclear Science and Technology, Vol. 48, Issue 1 https://doi.org/10.1080/18811248.2011.9711675	journal	January 2011
The AME2016 atomic mass evaluation (II). Tables, graphs and references Wang, Meng; Audi, G.; Kondev, F. G. Chinese Physics C, Vol. 41, Issue 3 https://doi.org/10.1088/1674-1137/41/3/030003	journal	March 2017
P 31 ( n , p ) Si 31 and Al 27 ( n , α ) Na 24 Cross Sections Grundl, J. A.; Henkel, R. L.; Perkins, B. L. Physical Review, Vol. 109, Issue 2 https://doi.org/10.1103/PhysRev.109.425	journal	January 1958
Ni 58 ( n , p ) Co 58 Cross Section for Neutrons of Energies between 2.2 and 3.6 Mev González, L.; Rapaport, J.; van Loef, J. J. Physical Review, Vol. 120, Issue 4 https://doi.org/10.1103/PhysRev.120.1319	journal	November 1960
The Inelastic Scattering of Neutrons Hauser, Walter; Feshbach, Herman Physical Review, Vol. 87, Issue 2 https://doi.org/10.1103/PhysRev.87.366	journal	July 1952
Cl 35 ( n , p ) 35 S cross section from 25 meV to 100 keV Koehler, P. E. Physical Review C, Vol. 44, Issue 4 https://doi.org/10.1103/PhysRevC.44.1675	journal	October 1991
Excitation functions and isomeric cross section ratio of the Ni 58 ( n , p ) 58 Co m , g reactions from 2 to 15 MeV Buczkó, Cs. M.; Csikai, J.; Sudár, S. Physical Review C, Vol. 52, Issue 4 https://doi.org/10.1103/PhysRevC.52.1940	journal	October 1995
New Maxwellian averaged neutron capture cross sections for 3 5 , 3 7 Cl Guber, K. H.; Sayer, R. O.; Valentine, T. E. Physical Review C, Vol. 65, Issue 5 https://doi.org/10.1103/PhysRevC.65.058801	journal	April 2002
R -matrix analysis of Cl neutron cross sections up to 1.2 MeV Sayer, R. O.; Guber, K. H.; Leal, L. C. Physical Review C, Vol. 73, Issue 4 https://doi.org/10.1103/PhysRevC.73.044603	journal	April 2006
High-spin structure and intruder excitations in 36 Cl Aydin, S.; Recchia, F.; Ionescu-Bujor, M. Physical Review C, Vol. 86, Issue 2 https://doi.org/10.1103/PhysRevC.86.024320	journal	August 2012
Excitation Functions of Ni ⁵⁸ ( n , p )Co ⁵⁸ and Zn ⁶⁴ ( n , p )Cu ⁶⁴ Reactions in the Energy Region from 1.8 to 4.8 Mev Nakai, Kōzi; Gotoh, Hiroshi; Amano, Hiroshi Journal of the Physical Society of Japan, Vol. 17, Issue 8 https://doi.org/10.1143/JPSJ.17.1215	journal	August 1962
Some Neutron Reaction Cross Sections for ^{111, 112} Cd, ⁸⁷ Sr, and ⁵⁸ Ni Temperley, J. K. Nuclear Science and Engineering, Vol. 32, Issue 2 https://doi.org/10.13182/NSE68-A19732	journal	May 1968
Cross-Section Measurement of ( n, p ) Reactions for ²⁷ Al, ^46,47,48 Ti, ^54,56 Fe, ⁵⁸ Ni, ⁵⁹ Co, and ⁶⁴ Zn from Near Threshold to 10 MeV Smith, Donald L.; Meadows, James W. Nuclear Science and Engineering, Vol. 58, Issue 3 https://doi.org/10.13182/NSE75-A26780	journal	November 1975
Measurement of the ⁵⁸ Ni( n, p ) ⁵⁸ Co Cross Section with H( n, n ) p as a Standard Wu, Mien-Win; Chou, Jen-Chang Nuclear Science and Engineering, Vol. 63, Issue 3 https://doi.org/10.13182/NSE77-A27039	journal	July 1977
Isotopic compositions of the elements 2009 (IUPAC Technical Report) Berglund, Michael; Wieser, Michael E. Pure and Applied Chemistry, Vol. 83, Issue 2 https://doi.org/10.1351/PAC-REP-10-06-02	journal	January 2011
Updating and Extending the IRDF-2002 Dosimetry Library Capote, Roberto; Zolotarev, Konstantin I.; Pronyaev, Vladimir G. Journal of ASTM International, Vol. 9, Issue 4 https://doi.org/10.1520/JAI104119	journal	April 2012
Status of the JEFF Nuclear Data Library Koning, A. J.; Koning, E.; Dean, J. Journal of the Korean Physical Society, Vol. 59, Issue 2(3) https://doi.org/10.3938/jkps.59.1057	journal	August 2011

Cited By (1)

Boutique neutrons advance ⁴⁰ Ar/ ³⁹ Ar geochronology Rutte, Daniel; Renne, Paul R.; Morrell, Jonathan Science Advances, Vol. 5, Issue 9 https://doi.org/10.1126/sciadv.aaw5526	journal	September 2019

Similar Records

Experimental study of

{}^{35}{Cl}

excited states via

{}^{32}S (α, p)

Journal Article · Wed May 29 20:00:00 EDT 2019 · Physical Review C · OSTI ID:1523613

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Possible evidence of nonstatistical properties in the Cl35(n , p)S35 cross section

Citation Formats

References (40)

Cited By (1)

Similar Records

Related Subjects

Possible evidence of nonstatistical properties in the ${}^{35}{Cl} (n, p) {}^{35}S$ cross section