ENTRY 32778 20210129 32003277800000001 SUBENT 32778001 20210129 32003277800100001 BIB 16 47 3277800100002 TITLE Measurement of fission cross-section for 134Te and 3277800100003 134I in 232Th(n,f) reaction induced by 14 MeV neutrons 3277800100004 AUTHOR (Zhang Zhengwei,Liu Shuangtong,Wang Qiang, 3277800100005 Lan Changlin,Guan Xingcai,Lai Caifeng,Fang Kaihong) 3277800100006 INSTITUTE (3CPRLNZ,3CPRNPC) 3277800100007 REFERENCE (J,RPC,141,138,2017) 3277800100008 #doi:10.1016/j.radphyschem.2017.06.018 3277800100009 FACILITY (NGEN,3CPRNPC) The K-400 intense neutron generator 3277800100010 INC-SOURCE (D-T) 3277800100011 REL-REF (I,32745001,Q.Wang+,J,EPJ/A,50,164,2014) 3277800100012 T(d,n) neutron generator 3277800100013 (I,31616001,Kaihong Fang+,J,ARI,66,1104,2008) 3277800100014 T(d,n) neutron generator 3277800100015 (I,31665001,Kaihong Fang+,J,RM,44,68,2009) 3277800100016 T(d,n) neutron generator 3277800100017 (I,32751001,Chang-Lin Lan+,J,EPJ/A,52,345,2016) 3277800100018 T(d,n) neutron generator 3277800100019 DETECTOR (HPGE) A low background, high efficiency HPGe 3277800100020 detector (ORTEC, made in USA) with a relative 3277800100021 efficiency of about 68%, and an energy resolution of 3277800100022 1.7 keV (FWHM) at 1.33 MeV. 3277800100023 SAMPLE Three ThO2 samples 3277800100024 METHOD (ACTIV) The samples were placed at 0, 45 and 90 deg 3277800100025 angles relative to the deuterium beam direction and 3277800100026 centered about the T-Ti target at distance of 35 mm. 3277800100027 The irradiation lasted about 110 min. The cooling time 3277800100028 was about 5 min. The gamma collection were 3277800100029 recorded every one min. 3277800100030 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 3277800100031 DECAY-MON (11-NA-24,,DG,1368.6,1.00) 3277800100032 CORRECTION Corrections were made for neutron flux fluctuation, 3277800100033 self-absorption, geometry and coincidence. 3277800100034 ERR-ANALYS (ERR-T) The main uncertainties came from the 3277800100035 detection efficiency calibration, the statistical 3277800100036 ones of characteristic gamma-ray peaks, and the 3277800100037 uncertainties of other parameters. 3277800100038 (ERR-S,1.5,4.0) The statistical uncertainties of 3277800100039 characteristic gamma-ray peaks 3277800100040 (ERR-1,2.0,2.5) The detection efficiency calibration 3277800100041 COMMENT The isotope 134I of which characteristic gamma-rays 3277800100042 were detected in the gamma-spectrum was concluded to 3277800100043 be originated from 134Te decay. According to the 3277800100044 cascade deduction formulism, the cross-section of 3277800100045 232Th(n,f)134I was estimated to be below a value 3277800100046 (~5.7E-3 mb) refered to the Minimal Detectable 3277800100047 Activity (MDA) with the gamma measurements. 3277800100048 HISTORY (20210129C) Compiled by Lile Liu (CNDC) 3277800100049 ENDBIB 47 0 3277800100050 NOCOMMON 0 0 3 3277800100051 ENDSUBENT 50 0 3277800199999 SUBENT 32778002 20210129 32003277800200001 BIB 3 4 3277800200002 REACTION (90-TH-232(N,F)52-TE-134,(CUM),SIG) 3277800200003 DECAY-DATA ((1.)52-TE-134,41.8MIN,DG,565.9,0.1827) 3277800200004 ((2.)52-TE-134,41.8MIN,DG,767.2,0.29) 3277800200005 STATUS (TABLE) Table 2 of Radiat.Phys.Chem.141,138,2017. 3277800200006 ENDBIB 4 0 3277800200007 NOCOMMON 0 0 3277800200008 DATA 6 6 3277800200009 EN EN-ERR DATA ERR-T DECAY-FLAG MONIT 3277800200010 MEV MEV MB MB NO-DIM MB 3277800200011 14.1 0.3 9.41 0.64 1. 121.203277800200012 14.1 0.3 9.72 0.70 2. 121.203277800200013 14.5 0.3 9.92 0.68 1. 115.993277800200014 14.5 0.3 10.1 0.8 2. 115.993277800200015 14.7 0.3 10.7 0.7 1. 113.383277800200016 14.7 0.3 10.8 0.8 2. 113.383277800200017 ENDDATA 8 0 3277800200018 ENDSUBENT 17 0 3277800299999 SUBENT 32778003 20210129 32003277800300001 BIB 3 6 3277800300002 REACTION (90-TH-232(N,F)52-TE-134,(CUM),SIG,,AV) 3277800300003 ANALYSIS The simply averaged value from 565.9 keV and 767.2 3277800300004 keV characteristic gamma-ray. 3277800300005 STATUS (TABLE) Text (p.140) of Radiat.Phys.Chem.141,138,2017. 3277800300006 (DEP,32778002) Cross sections obtained from two gamma 3277800300007 lines. 3277800300008 ENDBIB 6 0 3277800300009 NOCOMMON 0 0 3277800300010 DATA 5 3 3277800300011 EN EN-ERR DATA ERR-T MONIT 3277800300012 MEV MEV MB MB MB 3277800300013 14.1 0.3 9.57 0.47 121.20 3277800300014 14.5 0.3 10.0 0.5 115.99 3277800300015 14.7 0.3 10.7 0.6 113.38 3277800300016 ENDDATA 5 0 3277800300017 ENDSUBENT 16 0 3277800399999 ENDENTRY 3 0 3277899999999