ENTRY 14457 20190508 14531445700000001 SUBENT 14457001 20190508 14531445700100001 BIB 9 22 1445700100002 TITLE Resonance Parameters for the 8-eV Level of Sm152 1445700100003 AUTHOR (R.E.Chrien) 1445700100004 REFERENCE (J,CJP,39,1193,1961) 1445700100005 #doi:10.1139/p61-134 1445700100006 INSTITUTE (1USABNL) 1445700100007 FACILITY (CHOPF,1CANCRC) The joint BNL-AECL Fast Chopper 1445700100008 Facility operating at the NRU reactor at Chalk River. 1445700100009 SAMPLE (62-SM-152,ENR=0.972) A sample of samarium enriched 1445700100010 to 97.2% Sm152 was made by preparing a solution of 1445700100011 samarium nitrate in a lacquer base and applying it to 1445700100012 an aluminum backing. 1445700100013 METHOD (TOF) The BNL-AECL Fast Chopper Facility consists of 1445700100014 the BNL-type fast chopper operating in conjunction 1445700100015 with an 88.2-meter flight path at the NRU reactor. 1445700100016 The detector is made up of an array of 384 counter 1445700100017 elements in a common atmosphere of BF3 gas. The time 1445700100018 analysis of the neutron counts is done with the 1445700100019 Brookhaven 1024-channel time analyzer. The chopper 1445700100020 was run at 2000 r.p.m. giving a repetition rate of 1445700100021 267 bursts/sec with the eight-armed rotor. 1445700100022 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. 1445700100023 HISTORY (20190508C) BP 1445700100024 ENDBIB 22 0 1445700100025 NOCOMMON 0 0 1445700100026 ENDSUBENT 25 0 1445700199999 SUBENT 14457002 20190508 14531445700200001 BIB 3 15 1445700200002 REACTION 1(62-SM-152(N,0),,EN) 1445700200003 2(62-SM-152(N,G),,WID) 1445700200004 3(62-SM-152(N,TOT),,WID) 1445700200005 ANALYSIS (SHAPE) Resonance shape analysis. The Doppler- 1445700200006 broadened single level formula tables were used for 1445700200007 the shape analysis. The observed transmission curve 1445700200008 was compared with a series of resolution-broadened, 1445700200009 Doppler-broadened curves for various values of Gamma, 1445700200010 with the total area of the resonance held fixed to 1445700200011 the experimentally observed value. That value of 1445700200012 Gamma was selected which corresponded to a minimum in 1445700200013 the sum of the squares of the deviations between the 1445700200014 observed and expected data points, and the best fit 1445700200015 was obtained. 1445700200016 STATUS (TABLE) page 1195. 1445700200017 ENDBIB 15 0 1445700200018 NOCOMMON 0 0 1445700200019 DATA 6 1 1445700200020 DATA 1DATA-ERR 1DATA 2DATA-ERR 2DATA 3DATA-ERR 31445700200021 EV EV EV EV EV EV 1445700200022 8.02 0.02 0.079 0.003 0.205 0.0151445700200023 ENDDATA 3 0 1445700200024 ENDSUBENT 23 0 1445700299999 SUBENT 14457003 20190508 14531445700300001 BIB 3 9 1445700300002 REACTION (62-SM-152(N,G)62-SM-153,,RI,,RNV) 1445700300003 ANALYSIS With the reasonable assumption that only the 8-eV 1445700300004 level is important in determining the capture 1445700300005 properties of 152Sm the following quantities may be 1445700300006 computed from the presently reported resonance 1445700300007 parameters for comparison with experiments done with 1445700300008 pile neutrons. 1445700300009 STATUS (DEP,14457002) 1445700300010 (TABLE) page 1196. 1445700300011 ENDBIB 9 0 1445700300012 NOCOMMON 0 0 1445700300013 DATA 3 1 1445700300014 EN-MIN DATA DATA-ERR 1445700300015 EV B B 1445700300016 0.5 3090.0 220.0 1445700300017 ENDDATA 3 0 1445700300018 ENDSUBENT 17 0 1445700399999 SUBENT 14457004 20190508 14531445700400001 BIB 3 9 1445700400002 REACTION (62-SM-152(N,G)62-SM-153,,SIG,,MXW) 1445700400003 ANALYSIS With the reasonable assumption that only the 8-eV 1445700400004 level is important in determining the capture 1445700400005 properties of 152Sm the following quantities may be 1445700400006 computed from the presently reported resonance 1445700400007 parameters for comparison with experiments done with 1445700400008 pile neutrons. 1445700400009 STATUS (DEP,14457002) 1445700400010 (TABLE) page 1196. 1445700400011 ENDBIB 9 0 1445700400012 NOCOMMON 0 0 1445700400013 DATA 3 1 1445700400014 EN-DUMMY DATA DATA-ERR 1445700400015 EV B B 1445700400016 0.0253 224.0 18.0 1445700400017 ENDDATA 3 0 1445700400018 ENDSUBENT 17 0 1445700499999 SUBENT 14457005 20190508 14531445700500001 BIB 3 10 1445700500002 REACTION ((62-SM-152(N,G)62-SM-153,,RI,,RNV)// 1445700500003 (62-SM-152(N,G)62-SM-153,,SIG,,MXW)) 1445700500004 ANALYSIS With the reasonable assumption that only the 8-eV 1445700500005 level is important in determining the capture 1445700500006 properties of 152Sm the following quantities may be 1445700500007 computed from the presently reported resonance 1445700500008 parameters for comparison with experiments done with 1445700500009 pile neutrons. 1445700500010 STATUS (DEP,14457002) 1445700500011 (TABLE) page 1196. 1445700500012 ENDBIB 10 0 1445700500013 COMMON 2 3 1445700500014 EN-MIN-NM EN-DUM-DN 1445700500015 EV EV 1445700500016 0.5 0.0253 1445700500017 ENDCOMMON 3 0 1445700500018 DATA 2 1 1445700500019 DATA DATA-ERR 1445700500020 NO-DIM NO-DIM 1445700500021 13.8 1.0 1445700500022 ENDDATA 3 0 1445700500023 ENDSUBENT 22 0 1445700599999 ENDENTRY 5 0 1445799999999