ENTRY L0221 20170313 L032L022100000001 SUBENT L0221001 20170313 L032L022100100001 BIB 13 43 L022100100002 TITLE Exploratory study of fission product yield L022100100003 determination from photofission of 239Pu at 11 MeV L022100100004 with monoenergetic photons L022100100005 AUTHOR (Megha Bhike,W.Tornow,Krishichayan,A.P.Tonchev) L022100100006 INSTITUTE (1USATNL,1USALRL) L022100100007 REFERENCE (J,PR/C,95,024608,2017) L022100100008 FACILITY (SRING,1USATNL) Experiment was conducted at TUNL's L022100100009 High Intensity Gamma-Ray Source HIgS L022100100010 SAMPLE The previously unirradiated 239Pu target was L022100100011 provided by Los Alamos National Laboratory. L022100100012 Target of 1.24 cm diameter and mass of L022100100013 0.2337 g was sandwiched between Au foils of the same L022100100014 diameter and thickness of 0.01 cm. L022100100015 DETECTOR (HPGE) HPGe detectors of 60% efficiency in TUNLs low- L022100100016 background counting facility were used for the L022100100017 gamma-ray counting of the 239Pu target and gold L022100100018 monitor foils. L022100100019 METHOD (ACTIV) Sample was irradiated for 9 hours. After L022100100020 irradiation, the 239Pu target was gamma-ray counted L022100100021 over a period of 2 months for a number of different L022100100022 counting cycles ranging from hours (at the very L022100100023 beginning) to days to measure the decay of the L022100100024 induced activity of the fission products. L022100100025 MONITOR (79-AU-197(G,N)79-AU-196,,SIG) L022100100026 MONIT-REF (G0033003,C.Plaisir+,J,EPJ/A,48,68,2012) L022100100027 INC-SOURCE (LCS) Quasi monoenergetic polarized gamma rays were L022100100028 obtained by Compton backscattering of photons from L022100100029 free electron laser on high energy electrons in L022100100030 electron storage ring. The target assembly was L022100100031 irradiated for about 9 h with approximately L022100100032 1E+7 gamma/(cm2s). L022100100033 ERR-ANALYS (ERR-S,0.6,2.5)Stat. uncertainty in photopeak area L022100100034 (ERR-1,1.8,4.)Syst. uncertainty in detection efficiencyL022100100035 (ERR-2,0.1,4.4) Syst. uncertainty in gamma ray emissionL022100100036 (ERR-3) Systematic uncertainty in half life L022100100037 (ERR-4) Systematic uncertainty in gamma ray absorption L022100100038 (ERR-5) Systematic uncertainty in target mass L022100100039 (ERR-6) Systematic uncertainty in irradiation time L022100100040 (ERR-7) Systematic uncertainty in decay time L022100100041 (ERR-8) Systematic uncertainty in counting time L022100100042 (ERR-9) Systematic uncertainty in monitor cross sectionL022100100043 (ERR-T) Total uncertainty L022100100044 HISTORY (20170313C) Compiled by S.H. L022100100045 ENDBIB 43 0 L022100100046 COMMON 9 6 L022100100047 EN EN-RSL ERR-3 ERR-4 ERR-5 ERR-6 L022100100048 ERR-7 ERR-8 ERR-9 L022100100049 MEV MEV PER-CENT PER-CENT PER-CENT PER-CENT L022100100050 PER-CENT PER-CENT PER-CENT L022100100051 11.0 0.140 0.6 0.81 0.1 1.0 L022100100052 1.0 1.0 10. L022100100053 ENDCOMMON 6 0 L022100100054 ENDSUBENT 53 0 L022100199999 SUBENT L0221002 20170313 L032L022100200001 BIB 3 10 L022100200002 REACTION (94-PU-239(G,F)ELEM/MASS,CUM,FY) L022100200003 STATUS (TABLE) Data taken from tab. 2 of the reference L022100200004 DECAY-DATA ((1.)38-SR-91,9.63HR,DG,1024.3,0.3350) L022100200005 ((2.)38-SR-92,2.611HR,DG,1383.93,0.90) L022100200006 ((3.)40-ZR-97,16.749HR,DG,743.36,0.9309) L022100200007 ((4.)42-MO-99,65.976HR,DG,739.500,0.1226) L022100200008 ((5.)53-I-133-G,20.83HR,DG,529.872,0.870) L022100200009 ((6.)53-I-134-G,52.5MIN,DG,847.025,0.96) L022100200010 ((7.)55-CS-138-G,33.41MIN,DG,1435.86,0.763) L022100200011 ((8.)58-CE-143,33.039HR,DG,293.266,0.428) L022100200012 ENDBIB 10 0 L022100200013 NOCOMMON 0 0 L022100200014 DATA 6 8 L022100200015 ELEMENT MASS ISOMER DECAY-FLAG DATA ERR-T L022100200016 NO-DIM NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS L022100200017 38. 91. 1. 4.15 0.51 L022100200018 38. 92. 2. 4.21 0.49 L022100200019 40. 97. 3. 6.63 0.76 L022100200020 42. 99. 4. 7.90 0.94 L022100200021 53. 133. 5. 7.56 0.89 L022100200022 53. 134. 6. 7.56 0.89 L022100200023 55. 138. 1. 7. 6.18 0.75 L022100200024 58. 143. 8. 4.41 0.51 L022100200025 ENDDATA 10 0 L022100200026 ENDSUBENT 25 0 L022100299999 ENDENTRY 2 0 L022199999999