ENTRY 32775 20180918 31863277500000001 SUBENT 32775001 20180918 31863277500100001 BIB 16 60 3277500100002 TITLE Activation cross section and isomeric cross-section 3277500100003 ratio for the (n,2n) reaction on 113,115In 3277500100004 AUTHOR (Junhua Luo, Li Jiang, Suyuan Li) 3277500100005 INSTITUTE (3CPRHXU,3CPRNPC) 3277500100006 REFERENCE (J,NSE,188,198,2017) 3277500100007 #doi:10.1080/00295639.2017.1352366 3277500100008 FACILITY (NGEN,3CPRNPC) Pd-300 neutron generator 3277500100009 SAMPLE Approximately 10 g of natural isotopic composition 3277500100010 (99.99% pure) was made into a pellet of 0.156 cm 3277500100011 thickness and 2.0 cm diameter. Three such pellets 3277500100012 were prepared. Monitor foils (Nb, 99.99% pure, 0.12 3277500100013 mm thick) of the same diameter as the pellets were 3277500100014 then attached in front and at the back of each sample. 3277500100015 INC-SOURCE (D-T) Neutrons were produced by an effective deuteron 3277500100016 beam energy of 134 keV and beam current of 260 uA. 3277500100017 The T-Ti target used in the generator had a thickness 3277500100018 of 2.8 mg/cm2, and the diameter of the active zone 3277500100019 was 1.2 cm. 3277500100020 DETECTOR (HPGE) Gamma-ray activities were determined by a high- 3277500100021 purity germanium detector (ORTEC, model GEM 60P, 3277500100022 crystal diameter: 70.1 mm, crystal length: 72.3 mm, 3277500100023 made in the United States) with a relative efficiency 3277500100024 of about 68% and an energy resolution of 1.69 keV at 3277500100025 1332 keV for Co-60. The efficiency of the detector 3277500100026 was pre-calibrated using various standard gamma 3277500100027 sources, which were Co-57, Co-60, Cd-109, Ba-133, 3277500100028 Cs-137, Eu-152, Am-241 and Ra-226. 3277500100029 (SIBAR) The Au-Si surface barrier detector used at 3277500100030 135 deg accompanying alpha-particle tube was 110 cm 3277500100031 from the target. 3277500100032 METHOD (ACTIV) Irradiation of the samples was lasted about 3 3277500100033 to 4 min with a yield around 3 to 4E10 n/(4pi*s) . 3277500100034 The groups of sample were placed at 0, 90 or 135 3277500100035 degree relative to the beam direction and centered 3277500100036 about the T-Ti target at distances of about 40 mm. 3277500100037 During irradiation, the neutron flux was monitored by 3277500100038 accompanying alpha particles so that corrections 3277500100039 could be made for small variations in the yield. 3277500100040 MONITOR (41-NB-93(N,2N)41-NB-92-M,,SIG) 3277500100041 DECAY-MON (41-NB-92-M,10.15D,DG,934.44,0.9915) 3277500100042 MONIT-REF (,M.Wagner+,B,PH-DAT,13-5,,1990) 3277500100043 CORRECTION The correction factors for the self-absorption of the 3277500100044 sample at 156.6, 190.3, 511.0, and 1299.8 keV are 3277500100045 1.347, 1.225, 1.054, and 1.029. 3277500100046 ERR-ANALYS (ERR-T) Total uncertainty 3277500100047 (ERR-S,1.0,6.8) Counting statistics 1.0-6.8% 3277500100048 (ERR-1,2.0,3.0) Detector efficiency 2-3.0% 3277500100049 (ERR-2) Weight of samples 0.1% 3277500100050 (ERR-3) Self-absorption of gamma-ray 2% 3277500100051 (ERR-4,0.1,3.) Cooling and measuring times 0.1-3% 3277500100052 (ERR-5,1.0,8.5) Uncertainties in branching ratio of 3277500100053 the characteristic gamma rays 1.0-8.5% 3277500100054 (ERR-6,0.02,1.4) Uncertainties in the half-lives of 3277500100055 the radioactive product nuclei 0.02-1.4% 3277500100056 (ERR-7,0.1,1.2) Abundance of the target isotope 0.1- 3277500100057 1.2% 3277500100058 (MONIT-ERR) Standard cross sections uncertainties 1.5% 3277500100059 STATUS (TABLE) Data were obtained from TABLE 3 and text (p7) 3277500100060 of Nuclear Science and Engineering,188,198,2017 3277500100061 HISTORY (20180712C) Compiled by Lin Li(CNDC) 3277500100062 ENDBIB 60 0 3277500100063 COMMON 2 3 3277500100064 ERR-2 ERR-3 3277500100065 PER-CENT PER-CENT 3277500100066 0.1 2. 3277500100067 ENDCOMMON 3 0 3277500100068 ENDSUBENT 67 0 3277500199999 SUBENT 32775002 20180918 31863277500200001 BIB 4 9 3277500200002 REACTION 1(49-IN-113(N,2N)49-IN-112-M,,SIG) 3277500200003 2(49-IN-113(N,2N)49-IN-112-G,M-,SIG) 3277500200004 3(49-IN-113(N,2N)49-IN-112,,SIG) 3277500200005 4(49-IN-113(N,2N)49-IN-112-M/G,,SIG/RAT) 3277500200006 DECAY-DATA1(49-IN-112-M,20.67MIN,DG,156.6,0.1333) 3277500200007 2(49-IN-112-G,14.88MIN,DG,511.0,0.47) 3277500200008 CORRECTION2Contribution of the 113In(n,2n)112mIn reaction via 3277500200009 isomeric transition (IT) (100%) was subtracted. 3277500200010 SAMPLE (49-IN-113,NAT=0.0429) 3277500200011 ENDBIB 9 0 3277500200012 NOCOMMON 0 0 3277500200013 DATA 12 3 3277500200014 EN EN-ERR DATA 1ERR-T 1DATA 2ERR-T 23277500200015 DATA 3ERR-T 3DATA 4ERR-T 4MONIT MONIT-ERR 3277500200016 MEV MEV MB MB MB MB 3277500200017 MB MB NO-DIM NO-DIM MB MB 3277500200018 13.5 0.2 1110. 51. 299. 32.3277500200019 1409. 83. 3.7 0.4 457.9 6.83277500200020 14.1 0.2 1173. 62. 302. 34.3277500200021 1475. 96. 3.9 0.5 459.8 6.83277500200022 14.8 0.2 1189. 65. 306. 33.3277500200023 1495. 98. 3.9 0.5 459.7 5.03277500200024 ENDDATA 10 0 3277500200025 ENDSUBENT 24 0 3277500299999 SUBENT 32775003 20180918 31863277500300001 BIB 4 9 3277500300002 REACTION 1(49-IN-115(N,2N)49-IN-114-M,,SIG) 3277500300003 2(49-IN-115(N,2N)49-IN-114-G,M-,SIG) 3277500300004 3(49-IN-115(N,2N)49-IN-114,,SIG) 3277500300005 4(49-IN-115(N,2N)49-IN-114-M/G,,SIG/RAT) 3277500300006 DECAY-DATA1(49-IN-114-M,49.51D,DG,190.3,0.1556) 3277500300007 2(49-IN-114-G,71.9SEC,DG,1299.8,0.00139) 3277500300008 CORRECTION2Contribution of 115In(n,2n)114mIn reaction via 3277500300009 IT (96.75%) were subtracted 3277500300010 SAMPLE (49-IN-115,NAT=0.9571) 3277500300011 ENDBIB 9 0 3277500300012 NOCOMMON 0 0 3277500300013 DATA 12 3 3277500300014 EN EN-ERR DATA 1ERR-T 1DATA 2ERR-T 23277500300015 DATA 3ERR-T 3DATA 4ERR-T 4MONIT MONIT-ERR 3277500300016 MEV MEV MB MB MB MB 3277500300017 MB MB NO-DIM NO-DIM MB MB 3277500300018 13.5 0.2 1080. 52. 231. 26.3277500300019 1311. 78. 4.7 0.7 457.9 6.83277500300020 14.1 0.2 1169. 55. 247. 27.3277500300021 1416. 82. 4.7 0.7 459.8 6.83277500300022 14.8 0.2 1224. 60. 244. 28.3277500300023 1468. 88. 5.0 0.7 459.7 5.03277500300024 ENDDATA 10 0 3277500300025 ENDSUBENT 24 0 3277500399999 ENDENTRY 3 0 3277599999999