ENTRY 13668 20021204 00001366800000001 SUBENT 13668001 20021204 00001366800100001 BIB 13 26 1366800100002 INSTITUTE (1USATAM,1USAORL,2JPNJAE) 1366800100003 REFERENCE (J,NSE,125,51,199701) 1366800100004 AUTHOR (H.H.SALEH,T.A.PARISH,N.SHINOHARA) 1366800100005 TITLE Measurements of Delayed Neutron Decay Constants and 1366800100006 Fission Yields from 235U, 237Np, 241Am, and 243Am 1366800100007 FACILITY (REAC,1USATAM) TRIGA reactor 1366800100008 INC-SOURCE (REAC) 1366800100009 METHOD Fission rate determined by gamma spectroscopy. 1366800100010 DETECTOR (PROPC) BF3 proportional counters embedded in poly- 1366800100011 ethylene cylinder. 1366800100012 (HPGE) Fission rate determined using high-purity 1366800100013 germanium detector 1366800100014 MONITOR Detector efficiency measured relative to delayed 1366800100015 neutron emission from 235U. 1366800100016 Fission rate determined relative to activities of 1366800100017 140Ba, 140La, 103Ru, 131I, and 99Mo. Cumulative 1366800100018 fission yields taken from ENDF/B-VI. 1366800100019 CORRECTION Corrected for: 1366800100020 . dead time, 1366800100021 . self-absorption of gammas in sample, 1366800100022 . gamma-ray absorption in wall of detector. 1366800100023 ERR-ANALYS (DATA-ERR) No information on source of uncertainties. 1366800100024 STATUS Data taken from article 1366800100025 (APRVD) Approved by H.H.Saleh, 98/1/2 1366800100026 HISTORY (19971113C) 1366800100027 (20021204A) Converted to new date formats. 1366800100028 ENDBIB 26 0 1366800100029 COMMON 1 3 1366800100030 EN-DUMMY 1366800100031 EV 1366800100032 0.0253 1366800100033 ENDCOMMON 3 0 1366800100034 ENDSUBENT 33 0 1366800199999 SUBENT 13668002 20021204 00001366800200001 BIB 3 4 1366800200002 REACTION (92-U-235(N,F),DL/GRP,NU) 1366800200003 SAMPLE Mixture of aluminum powder and urainium oxide powder, 1366800200004 97.663% 235U. 1366800200005 HISTORY (20021204A) Reaction corrected. 1366800200006 ENDBIB 4 0 1366800200007 NOCOMMON 0 0 1366800200008 DATA 3 5 1366800200009 HL DATA DATA-ERR 1366800200010 SEC PC/FIS PC/FIS 1366800200011 55. 0.057 0.004 1366800200012 22. 0.38 0.015 1366800200013 6. 0.31 0.02 1366800200014 2. 0.62 0.03 1366800200015 0.5 0.176 0.007 1366800200016 ENDDATA 7 0 1366800200017 ENDSUBENT 16 0 1366800299999 SUBENT 13668003 20021204 00001366800300001 BIB 3 4 1366800300002 REACTION (93-NP-237(N,F),DL/GRP,NU) 1366800300003 SAMPLE Mixture of aluminum powder and neptunium oxide powder, 1366800300004 99.999% 237Np. 1366800300005 HISTORY (20021204A) Reaction corrected. 1366800300006 ENDBIB 4 0 1366800300007 NOCOMMON 0 0 1366800300008 DATA 3 5 1366800300009 HL DATA DATA-ERR 1366800300010 SEC PC/FIS PC/FIS 1366800300011 55. 0.052 0.003 1366800300012 22. 0.3 0.02 1366800300013 6. 0.248 0.010 1366800300014 2. 0.417 0.032 1366800300015 0.5 0.250 0.004 1366800300016 ENDDATA 7 0 1366800300017 ENDSUBENT 16 0 1366800399999 SUBENT 13668004 20021204 00001366800400001 BIB 3 4 1366800400002 REACTION (95-AM-241(N,F),DL/GRP,NU) 1366800400003 SAMPLE Mixture of aluminum powder and americium oxide powder, 1366800400004 100% 241Am. 1366800400005 HISTORY (20021204A) Reaction corrected. 1366800400006 ENDBIB 4 0 1366800400007 NOCOMMON 0 0 1366800400008 DATA 3 5 1366800400009 HL DATA DATA-ERR 1366800400010 SEC PC/FIS PC/FIS 1366800400011 55. 0.017 0.0005 1366800400012 22. 0.151 0.005 1366800400013 6. 0.096 0.002 1366800400014 2. 0.162 0.018 1366800400015 0.5 0.054 0.001 1366800400016 ENDDATA 7 0 1366800400017 ENDSUBENT 16 0 1366800499999 SUBENT 13668005 20021204 00001366800500001 BIB 3 4 1366800500002 REACTION (95-AM-243(N,F),DL/GRP,NU) 1366800500003 SAMPLE Mixture of aluminum powder and americium oxide powder, 1366800500004 99.997% 243Am. 1366800500005 HISTORY (20021204A) Reaction corrected. 1366800500006 ENDBIB 4 0 1366800500007 NOCOMMON 0 0 1366800500008 DATA 3 5 1366800500009 HL DATA DATA-ERR 1366800500010 SEC PC/FIS PC/FIS 1366800500011 55. 0.020 0.001 1366800500012 22. 0.244 0.008 1366800500013 6. 0.185 0.006 1366800500014 2. 0.322 0.012 1366800500015 0.5 0.043 0.003 1366800500016 ENDDATA 7 0 1366800500017 ENDSUBENT 16 0 1366800599999 SUBENT 13668006 19971113 00001366800600001 BIB 3 5 1366800600002 REACTION (92-U-235(N,F),DL,NU) 1366800600003 SAMPLE Mixture of aluminum powder and urainium oxide powder, 1366800600004 97.663% 235U. 1366800600005 STATUS (DEP,13668002) 1366800600006 Using calculated value to 0.2 sec group = 0.049+-0.006.1366800600007 ENDBIB 5 0 1366800600008 NOCOMMON 0 0 1366800600009 DATA 2 1 1366800600010 DATA DATA-ERR 1366800600011 PC/FIS PC/FIS 1366800600012 1.59 0.04 1366800600013 ENDDATA 3 0 1366800600014 ENDSUBENT 13 0 1366800699999 SUBENT 13668007 19971113 00001366800700001 BIB 3 5 1366800700002 REACTION (93-NP-237(N,F),DL,NU) 1366800700003 SAMPLE Mixture of aluminum powder and neptunium oxide powder, 1366800700004 99.999% 237Np. 1366800700005 STATUS (DEP,13668003) 1366800700006 Using calculated value to 0.2 sec group = 0.0273+-0.0031366800700007 ENDBIB 5 0 1366800700008 NOCOMMON 0 0 1366800700009 DATA 2 1 1366800700010 DATA DATA-ERR 1366800700011 PC/FIS PC/FIS 1366800700012 1.29 0.04 1366800700013 ENDDATA 3 0 1366800700014 ENDSUBENT 13 0 1366800799999 SUBENT 13668008 19971113 00001366800800001 BIB 3 6 1366800800002 REACTION (95-AM-241(N,F),DL,NU) 1366800800003 SAMPLE Mixture of aluminum powder and americium oxide powder, 1366800800004 100% 241Am. 1366800800005 STATUS (DEP,13668004) 1366800800006 Using calculated value to 0.2 sec group = 1366800800007 0.0087+-0.0009. 1366800800008 ENDBIB 6 0 1366800800009 NOCOMMON 0 0 1366800800010 DATA 2 1 1366800800011 DATA DATA-ERR 1366800800012 PC/FIS PC/FIS 1366800800013 0.49 0.02 1366800800014 ENDDATA 3 0 1366800800015 ENDSUBENT 14 0 1366800899999 SUBENT 13668009 19971113 00001366800900001 BIB 3 5 1366800900002 REACTION (95-AM-243(N,F),DL,NU) 1366800900003 SAMPLE Mixture of aluminum powder and americium oxide powder, 1366800900004 99.997% 243Am. 1366800900005 STATUS (DEP,13668005) 1366800900006 Using calculated value to 0.2 sec group = 0.024+-0.00271366800900007 ENDBIB 5 0 1366800900008 NOCOMMON 0 0 1366800900009 DATA 2 1 1366800900010 DATA DATA-ERR 1366800900011 PC/FIS PC/FIS 1366800900012 0.84 0.04 1366800900013 ENDDATA 3 0 1366800900014 ENDSUBENT 13 0 1366800999999 ENDENTRY 9 0 1366899999999