ENTRY 12597 20240807 1259700000001 SUBENT 12597001 20240807 20250110 1259700100001 BIB 7 14 1259700100002 TITLE Thermal neutron cross sections of the Co-58 isomers 1259700100003 and the effect on fast flux measurements using nickel 1259700100004 AUTHOR (C.H.Hogg,L.D.Weber,E.C.Yates) 1259700100005 REFERENCE (R,IDO-16744,1962) 1259700100006 INSTITUTE (1USAMTR) 1259700100007 FACILITY (REAC,1USAMTR) 1259700100008 DETECTOR Gammas measured with either a multi-channel pulse 1259700100009 height analyzer or a calibrated high pressure 1259700100010 ionization chamber. 1259700100011 HISTORY (19780701C) 1259700100012 (19820827A) INSTITUTE, DECAY-DATA corrected. 1259700100013 (20240807A) BP: Updated to new date formats, lower 1259700100014 case. Corrections according last EXFOR rules and 1259700100015 Dict. Added FACILITY, updated subentry 2 per WP2021-07.1259700100016 ENDBIB 14 0 1259700100017 NOCOMMON 0 0 1259700100018 ENDSUBENT 17 0 1259700199999 SUBENT 12597002 20240807 20250110 1259700200001 BIB 10 14 1259700200002 REACTION (27-CO-58(N,G)27-CO-59,,SIG) 1259700200003 METHOD (BURN) Burn-up 1259700200004 INC-SOURCE (REAC) Engineering test reactor 1259700200005 SAMPLE 20 Mil Ni wire was irradiated for 20-40 days. After 1259700200006 decay of the 9.1 hr. Isomer, the sample was Re- 1259700200007 irradiated in the presence of an additional Ni sample 1259700200008 used to monitor the build up of Co-58.this second 1259700200009 irradiation lasted 10-20 days. 1259700200010 ERR-ANALYS (DATA-ERR) Errors based on internal consistency. 1259700200011 ASSUMED (ASSUM,28-NI-58(N,P)27-CO-58-G,,SIG,,FIS) 1259700200012 DECAY-DATA (27-CO-58-G,71.3D) 1259700200013 MONITOR (27-CO-59(N,G)27-CO-60,,SIG) 1259700200014 STATUS (TABLE,,C.H.Hogg+,R,IDO-16744,1962) text in page 3. 1259700200015 HISTORY (20240807A) BP: Removed EC per WP2021-07. 1259700200016 ENDBIB 14 0 1259700200017 NOCOMMON 0 0 1259700200018 DATA 4 1 1259700200019 EN DATA DATA-ERR ASSUM 1259700200020 EV B B MB 1259700200021 0.0253 1650. 150. 61. 1259700200022 ENDDATA 3 0 1259700200023 ENDSUBENT 22 0 1259700299999 SUBENT 12597003 20240807 20250110 1259700300001 BIB 8 13 1259700300002 REACTION (27-CO-58-M(N,G)27-CO-59,,SIG,,MXW) 1259700300003 INC-SOURCE (REAC) VH-2 MTR-materials testing reactor with 1259700300004 cadmium ratio 10. 1259700300005 METHOD (ACTIV) Irradiation of bare and Cd-covered Ni sample 1259700300006 in the same fast and thermal n flux in a region where 1259700300007 the thermal flux is known, using difference in 1259700300008 activities after the 9.1 hr activity has decayed. 1259700300009 Irradiation for 24 hours. 1259700300010 ERR-ANALYS (DATA-ERR) Errors based on internal consistency. 1259700300011 DECAY-DATA (27-CO-58-M,9.1HR,DG,805.,.979,DG,810.,.016) 1259700300012 MONITOR (27-CO-59(N,G)27-CO-60,,SIG) 1259700300013 ASSUMED (ASSUM,28-NI-58(N,P)27-CO-58-M,,SIG,,FIS) 1259700300014 STATUS (TABLE,,C.H.Hogg+,R,IDO-16744,1962) text in page 4. 1259700300015 ENDBIB 13 0 1259700300016 NOCOMMON 0 0 1259700300017 DATA 4 1 1259700300018 EN-DUMMY DATA DATA-ERR ASSUM 1259700300019 EV B B MB 1259700300020 0.0253 140.E+03 12.E+03 31. 1259700300021 ENDDATA 3 0 1259700300022 ENDSUBENT 21 0 1259700399999 SUBENT 12597004 20240807 20250110 1259700400001 BIB 3 3 1259700400002 REACTION (27-CO-58-M(N,G)27-CO-59,,RI) 1259700400003 MONITOR (27-CO-59(N,G)27-CO-60,,RI) 1259700400004 STATUS (TABLE,,C.H.Hogg+,R,IDO-16744,1962) text in page 7. 1259700400005 ENDBIB 3 0 1259700400006 NOCOMMON 0 0 1259700400007 DATA 3 1 1259700400008 EN-MIN DATA MONIT 1259700400009 EV B B 1259700400010 0.5 550.E+03 74. 1259700400011 ENDDATA 3 0 1259700400012 ENDSUBENT 11 0 1259700499999 SUBENT 12597005 20240807 20250110 1259700500001 BIB 8 14 1259700500002 REACTION (27-CO-58-M(N,G)27-CO-59,,SIG,,SPA) 1259700500003 INC-SOURCE (REAC) VH-2 MTR reactor. Cd ratio 10. 1259700500004 METHOD (BURN) Burn-up of 9.1 hr. Co-58 in thermal n flux. 1259700500005 Irradiated two Ni samples in contact with each other 1259700500006 under a Cd sheath. Then Re-irradiated one sample in 1259700500007 contact with a third Ni sample as well as a Co-Al 1259700500008 flux monitor. Counting was of each Co-58 specific 1259700500009 activities without chemical separation and after the 1259700500010 9.1 hr isomer had decayed. 1259700500011 ERR-ANALYS (DATA-ERR) Errors based on internal consistency. 1259700500012 DECAY-DATA (27-CO-58-M,9.1HR,DG,805.,.979,DG,810.,.016) 1259700500013 ASSUMED (ASSUM,28-NI-58(N,P)27-CO-58-M,,SIG,,FIS) 1259700500014 MONITOR (27-CO-59(N,G)27-CO-60,,SIG) 1259700500015 STATUS (TABLE,,C.H.Hogg+,R,IDO-16744,1962) text in page 6. 1259700500016 ENDBIB 14 0 1259700500017 NOCOMMON 0 0 1259700500018 DATA 4 1 1259700500019 EN-DUMMY DATA DATA-ERR ASSUM 1259700500020 EV B B MB 1259700500021 0.0253 170.E+03 12.E+03 31. 1259700500022 ENDDATA 3 0 1259700500023 ENDSUBENT 22 0 1259700599999 ENDENTRY 5 0 1259799999999