ENTRY 32789 20220126 32073278900000001 SUBENT 32789001 20220126 32073278900100001 BIB 16 66 3278900100002 TITLE Mass distribution in the 14.7 MeV neutron-induced 3278900100003 fission of 237Np 3278900100004 AUTHOR (Sun Tongyu, Li Wenxin, Fu Ming, Zhao Lili) 3278900100005 INSTITUTE (3CPRIMP) 3278900100006 FACILITY (CCW,3CPRIMP) 600 kV Cockcroft Walton accelerator 3278900100007 REFERENCE (J,HFH,13,54,1991) 3278900100008 INC-SOURCE (D-T) Neutron intensity 2E11 neutrons/sec 3278900100009 SAMPLE Neptunium dioxide foil was about 100 mg and placed in 3278900100010 a plexiglass round box. The round box was covered 3278900100011 with 1 mm thick cadmium metal. 3278900100012 METHOD (GSPEC) The gamma ray spectrometry method was used 3278900100013 for measuring 22 fission products in this work. Two 3278900100014 samples were used for the short and long half-life 3278900100015 fission products. The irradiation was lasted 14 min 3278900100016 and 5.2 h respectively. 3278900100017 DETECTOR (GELI) Gamma spectrometer with 4096 Channels were 3278900100018 consist of a Ge(Li) detector (volume: 60cm3) and 3278900100019 Multi-20. The energy resolution was 2.2 keV at 1.332 3278900100020 MeV for Co-60. The efficiency of the detector was 3278900100021 pre-calibrated with a series of standard gamma 3278900100022 sources provided by China Institute of Atomic Energy. 3278900100023 The error of efficiency was 3-6 %. 3278900100024 DECAY-DATA (37-RB-89,15.4MIN,DG,1031.9,0.636, 3278900100025 DG,1248.1,0.467) 3278900100026 (38-SR-91,9.48HR,DG,749.8,0.230, 3278900100027 DG,1024.3,0.325) 3278900100028 (42-MO-99,66.0HR) 3278900100029 (43-TC-99-M,6.02HR,DG,140.5,0.876) 3278900100030 (44-RU-103,39.4D,DG,497.1,0.864) 3278900100031 (44-RU-105,4.44HR,DG,469.4,0.176, 3278900100032 DG,676.4,0.157, 3278900100033 DG,724.2,0.476) 3278900100034 (46-PD-112,21.05HR,DG,617.4,0.499) 3278900100035 (50-SN-123-M,40.1MIN,DG,160.3,0.854) 3278900100036 (50-SN-125-M,9.52MIN,DG,331.9,0.948) 3278900100037 (51-SB-127,3.85D,DG,473.0,0.250, 3278900100038 DG,685.7,0.357) 3278900100039 (51-SB-128-G,9.01HR,DG,754.0,1.000) 3278900100040 (51-SB-129-G,4.32HR,DG,812.8,0.435) 3278900100041 (51-SB-130-G,40.0MIN,DG,793.4,1.000) 3278900100042 (53-I-131,8.04D,DG,364.5,0.812) 3278900100043 (52-TE-132,78.2HR,DG,552.6,0.166, 3278900100044 DG,667.7,1.020, 3278900100045 DG,772.1,0.787) 3278900100046 (53-I-133-G,20.8HR,DG,529.9,0.870) 3278900100047 (52-TE-134,41.8MIN) 3278900100048 (53-I-134-G,52.6MIN,DG,847.0,0.954, 3278900100049 DG,884.1,0.653) 3278900100050 (53-I-135,6.61HR,DG,526.6,0.138, 3278900100051 DG,1131.5,0.225, 3278900100052 DG,1260.4,0.286) 3278900100053 (54-XE-138,14.1MIN) 3278900100054 (55-CS-138-G,32.2MIN,DG,462.8,0.307) 3278900100055 (55-CS-138-M,2.90MIN,DG,191.7,0.200) 3278900100056 (56-BA-140,12.79D,DG,537.3,0.240) 3278900100057 (57-LA-142,1.55HR,DG,641.2,0.530) 3278900100058 (59-PR-146,24.1MIN,DG,453.8,0.480) 3278900100059 MONITOR (93-NP-237(N,F)40-ZR-97,CUM,FY) 3278900100060 MONIT-REF (,R.F.Coleman+,J,JIN,14,8,1960) 3278900100061 DECAY-MON (40-ZR-97,17.0HR,DG,657.9,1.060, 3278900100062 DG,743.4,0.927) 3278900100063 ERR-ANALYS (DATA-ERR) The experimental standard deviation were 3278900100064 given. 3278900100065 STATUS (TABLE) Table 2 of Nucl. Radiochem. 13 (1991) 54 3278900100066 HISTORY (20190623C) Compiled by Jimin Wang, CNDC. 3278900100067 (20220126A) VT Major revision in 005 3278900100068 ENDBIB 66 0 3278900100069 COMMON 3 3 3278900100070 EN MONIT MONIT-ERR 3278900100071 MEV PC/FIS PC/FIS 3278900100072 14.7 5.43 0.49 3278900100073 ENDCOMMON 3 0 3278900100074 ENDSUBENT 73 0 3278900199999 SUBENT 32789002 20190623 31903278900200001 BIB 2 2 3278900200002 REACTION (93-NP-237(N,F)ELEM/MASS,CUM,FY) 3278900200003 FLAG (1.) Only one isomer was measured in this experiment. 3278900200004 ENDBIB 2 0 3278900200005 NOCOMMON 0 0 3278900200006 DATA 6 22 3278900200007 ELEMENT MASS ISOMER DATA DATA-ERR FLAG 3278900200008 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 3278900200009 37. 89. 1.37 0.20 3278900200010 38. 91. 3.31 0.54 3278900200011 42. 99. 5.69 0.88 3278900200012 44. 103. 5.07 1.0 3278900200013 44. 105. 3.36 0.54 3278900200014 46. 112. 1.37 0.31 3278900200015 50. 123. 1. 0.70 0.1 1. 3278900200016 50. 125. 1. 0.5 0.28 1. 3278900200017 51. 127. 2.85 0.37 3278900200018 51. 128. 0. 1.42 0.41 1. 3278900200019 51. 129. 2.56 0.48 3278900200020 51. 130. 0. 1.06 0.19 1. 3278900200021 52. 132. 4.24 0.4 3278900200022 52. 134. 3.46 0.54 3278900200023 53. 131. 3.30 0.38 3278900200024 53. 133. 5.85 0.57 3278900200025 53. 136. 4.69 0.51 3278900200026 54. 138. 0.864 0.70 3278900200027 55. 138. 1. 3.65 0.58 3278900200028 56. 140. 4.97 0.61 3278900200029 57. 142. 3.78 0.47 3278900200030 59. 146. 1.53 0.58 3278900200031 ENDDATA 24 0 3278900200032 ENDSUBENT 31 0 3278900299999 SUBENT 32789003 20190623 31903278900300001 BIB 1 1 3278900300002 REACTION (93-NP-237(N,F)MASS,CHN,FY) 3278900300003 ENDBIB 1 0 3278900300004 NOCOMMON 0 0 3278900300005 DATA 3 2 3278900300006 MASS DATA DATA-ERR 3278900300007 NO-DIM PC/FIS PC/FIS 3278900300008 134. 4.68 1.53 3278900300009 138. 4.30 1.35 3278900300010 ENDDATA 4 0 3278900300011 ENDSUBENT 10 0 3278900399999 SUBENT 32789004 20190623 31903278900400001 BIB 1 1 3278900400002 REACTION (93-NP-237(N,F)53-I-134,IND,FY) 3278900400003 ENDBIB 1 0 3278900400004 NOCOMMON 0 0 3278900400005 DATA 2 1 3278900400006 DATA DATA-ERR 3278900400007 PC/FIS PC/FIS 3278900400008 5.24 0.18 3278900400009 ENDDATA 3 0 3278900400010 ENDSUBENT 9 0 3278900499999 SUBENT 32789005 20220126 32073278900500001 BIB 2 2 3278900500002 REACTION (93-NP-237(N,F)55-CS-138-G,CUM,FY) 3278900500003 HISTORY (20220126A) VT REACTION: IND/M+ ->CUM changed 3278900500004 ENDBIB 2 0 3278900500005 NOCOMMON 0 0 3278900500006 DATA 2 1 3278900500007 DATA DATA-ERR 3278900500008 PC/FIS PC/FIS 3278900500009 2.77 0.87 3278900500010 ENDDATA 3 0 3278900500011 ENDSUBENT 10 0 3278900599999 ENDENTRY 5 0 3278999999999