ENTRY 41645 20171228 41774164500000001 SUBENT 41645001 20171228 41774164500100001 BIB 12 37 4164500100002 TITLE Study of 77Se(n,alpha)74Ge and 145Nd(n,alpha)142Ce 4164500100003 reactions on resonance neutrons. 4164500100004 INSTITUTE (4ZZZDUB) 4164500100005 AUTHOR (A.Antonov,Yu.M.Gledenov,C.Marinova,Kh.Rigol') 4164500100006 REFERENCE (R,JINR-P3-81-348,1981) 4164500100007 FACILITY (REAC,4ZZZDUB) Pulsed reactor IBR-30 with 4164500100008 (ACCEL,4ZZZDUB) accelerator LUE-40. 4164500100009 INC-SOURCE (REAC) Aperture slits collimator 4164500100010 DETECTOR (IOCH) 6 independent flat double proportional chambers 4164500100011 with grids. 4164500100012 METHOD (TOF) For neutron energy . Flight base 30 m . 4164500100013 SAMPLE Samples were placed between chambers at 3deg angle 4164500100014 relative to neutron beam direction. 4164500100015 Nd-145 : 4164500100016 Nd(2)O(3), enrichment 84.6 %, thickness 4.8 mg/cm2, 4164500100017 average reactor power 8 kWt, 4164500100018 - number of layers 2 , square 1250 cm2, 4164500100019 time resolution 0.13 microsec/m, 4164500100020 time of measurement 170 hr; 4164500100021 - number of layers 8 , total square 5000 cm2, 4164500100022 time resolution 0.05 microsec/m, 4164500100023 time of measurement 180 hr. 4164500100024 Se-77: 4164500100025 enrichment 91.1 %, thickness 3.2 mg/cm2, 4164500100026 average reactor power 4 kWt, 4164500100027 number of layers 8 , total square 5000 cm2, 4164500100028 time resolution 0.13 microsec/m, 4164500100029 time of measurement 200 hr . 4164500100030 REL-REF (R,,,R,BNL-325,1973) 3rd edition, vol.1 . 4164500100031 Parameters of neutron resonances - 4164500100032 energy, spin , total width. 4164500100033 ERR-ANALYS (DATA-ERR) Errors includes statistics and 4164500100034 uncertainties in resonance parameters. 4164500100035 Uncertainty of calibration (caused mainly by the 4164500100036 registration efficiency uncertainty) was not included, 4164500100037 can be 20-30% . 4164500100038 HISTORY (20171228C) M.M. 4164500100039 ENDBIB 37 0 4164500100040 NOCOMMON 0 0 4164500100041 ENDSUBENT 40 0 4164500199999 SUBENT 41645002 20171228 41774164500200001 BIB 6 16 4164500200002 REACTION (34-SE-77(N,A),,WID) 4164500200003 ANALYSIS GAMMAalpha=(EPSk*Fk*Sk*Ak*GAMMA*N*GAMMAalphak)/ 4164500200004 (EPS*F*S*A*GAMMAk*Nk) , where 4164500200005 k - index of resonance used for calibration , 4164500200006 EPS - detector efficiency, 4164500200007 S - sample square, 4164500200008 A - square of resonance under transmission curve, 4164500200009 F - neutron flux, 4164500200010 GAMMA, GAMMAalpha - total and alpha widths. 4164500200011 Upper limits were determined with statistical 4164500200012 probability 0.95 . 4164500200013 MONITOR (62-SM-147(N,A),,WID) for resonance energy 83.4 eV 4164500200014 MONIT-REF (,Yu.M.Gledenov+,R,BCDL-4,3,1977) 4164500200015 MISC-COL (MISC) Number of counts. If error not given, then 4164500200016 maximal value. 4164500200017 STATUS (TABLE) Table 2 of R,JINR-P3-81-348,1981 4164500200018 ENDBIB 16 0 4164500200019 COMMON 3 3 4164500200020 EN-RES-NRM MONIT MONIT-ERR 4164500200021 EV MICRO-EV MICRO-EV 4164500200022 83.4 2.5 0.3 4164500200023 ENDCOMMON 3 0 4164500200024 DATA 6 10 4164500200025 EN-RES DATA DATA-ERR DATA-MAX MISC MISC-ERR 4164500200026 EV MICRO-EV MICRO-EV MICRO-EV NO-DIM NO-DIM 4164500200027 112. 8. 201. 4164500200028 211.6 0.1 135. 4164500200029 290.6 13.5 2.9 720. 88. 4164500200030 340.8 1. 304. 4164500200031 482. 15. 280. 4164500200032 690. 2. 195. 4164500200033 864. 2.1 1.1 231. 99. 4164500200034 997. 5.4 307. 4164500200035 1090. 3.3 69. 4164500200036 1265. 7.9 3.8 354. 163. 4164500200037 ENDDATA 12 0 4164500200038 ENDSUBENT 37 0 4164500299999 SUBENT 41645003 20171228 41774164500300001 BIB 7 21 4164500300002 REACTION (60-ND-145(N,A),,WID) 4164500300003 ANALYSIS GAMMAalpha=(EPSk*Fk*Sk*Ak*GAMMA*N*GAMMAalphak)/ 4164500300004 (EPS*F*S*A*GAMMAk*Nk) , where 4164500300005 k - index of resonance used for calibration , 4164500300006 EPS - detector efficiency, 4164500300007 S - sample square, 4164500300008 A - square of resonance under transmission curve, 4164500300009 F - neutron flux, 4164500300010 GAMMA, GAMMAalpha - total and alpha widths. 4164500300011 Upper limits were determined with statistical 4164500300012 probability 0.95 . 4164500300013 MONITOR (60-ND-145(N,A),,WID) 4164500300014 MONIT-REF (41645006,A.Antonov,R,JINR-P3-81-348,1981) 4164500300015 Additional measurement at this work. 4164500300016 REL-REF (R,,J.Kvitek+,J,ZEP,5,365,1967) 4164500300017 (R,,J.Kvitek+,J,NP/A,154,177,1970) 4164500300018 Previous measurement ( resolution 0.13 microsec/m) 4164500300019 for 3 resonances: 4.35, 42.51, 102.95 eV. 4164500300020 MISC-COL (MISC) Number of counts. If error not given, then 4164500300021 maximal value. 4164500300022 STATUS (TABLE) Table 2 of R,JINR-P3-81-348,1981 4164500300023 ENDBIB 21 0 4164500300024 COMMON 3 3 4164500300025 EN-RES-NRM MONIT MONIT-ERR 4164500300026 EV MICRO-EV MICRO-EV 4164500300027 4.35 0.45 0.07 4164500300028 ENDCOMMON 3 0 4164500300029 DATA 6 7 4164500300030 EN-RES DATA DATA-ERR DATA-MAX MISC MISC-ERR 4164500300031 EV MICRO-EV MICRO-EV MICRO-EV NO-DIM NO-DIM 4164500300032 4.35 0.45 0.09 11566. 114. 4164500300033 42.51 0.22 0.05 1486. 50. 4164500300034 96. 0.4 4164500300035 102.95 0.35 0.07 562. 40. 4164500300036 147.1 0.5 4164500300037 189.2 0.30 0.09 153. 40. 4164500300038 306. 0.31 0.22 78. 40. 4164500300039 ENDDATA 9 0 4164500300040 ENDSUBENT 39 0 4164500399999 SUBENT 41645004 20171228 41774164500400001 BIB 2 4 4164500400002 REACTION (34-SE-77(N,A),,WID,,AV) 4164500400003 STATUS (TABLE) Text, page 4 of R,JINR-P3-81-348,1981 4164500400004 (DEP,41645002) Average over 3 resonances from 4164500400005 Subent 002 4164500400006 ENDBIB 4 0 4164500400007 NOCOMMON 0 0 4164500400008 DATA 4 1 4164500400009 EN-RES-MIN EN-RES-MIN DATA DATA-ERR 4164500400010 EV EV MICRO-EV MICRO-EV 4164500400011 290.6 1265. 7.8 5.8 4164500400012 ENDDATA 3 0 4164500400013 ENDSUBENT 12 0 4164500499999 SUBENT 41645005 20171228 41774164500500001 BIB 2 3 4164500500002 REACTION (60-ND-145(N,A),,WID,,AV) 4164500500003 STATUS (TABLE) Text, page 5 of R,JINR-P3-81-348,1981 4164500500004 (DEP,41645003) Average over resonances from Subent 003 4164500500005 ENDBIB 3 0 4164500500006 NOCOMMON 0 0 4164500500007 DATA 4 1 4164500500008 EN-RES-MIN EN-RES-MIN DATA DATA-ERR 4164500500009 EV EV MICRO-EV MICRO-EV 4164500500010 4.35 306. 0.32 0.19 4164500500011 ENDDATA 3 0 4164500500012 ENDSUBENT 11 0 4164500599999 SUBENT 41645006 20171228 41774164500600001 BIB 6 18 4164500600002 REACTION (60-ND-145(N,A),,WID) 4164500600003 ANALYSIS GAMMAalpha=(EPSk*Fk*Sk*Ak*GAMMA*N*GAMMAalphak)/ 4164500600004 (EPS*F*S*A*GAMMAk*Nk) , where 4164500600005 k - index of resonance used for calibration , 4164500600006 EPS - detector efficiency, 4164500600007 S - sample square, 4164500600008 A - square of resonance under transmission curve, 4164500600009 F - neutron flux, 4164500600010 GAMMA, GAMMAalpha - total and alpha widths. 4164500600011 Upper limits were determined with statistical 4164500600012 probability 0.95 . 4164500600013 MONITOR (62-SM-147(N,A),,WID) for resonance energy 3.4 eV 4164500600014 MONIT-REF (,Yu.M.Gledenov+,R,BCDL-4,3,1977) 4164500600015 REL-REF (A,,J.Kvitek+,J,ZEP,5,365,1967) 4164500600016 (A,,J.Kvitek+,J,NP/A,154,177,1970) 4164500600017 Previous measurement ( resolution 0.13 microsec/m) 4164500600018 for resonance 4.35 eV - 0.44+-0.08 microeV . 4164500600019 STATUS (TABLE) Table 2 of R,JINR-P3-81-348,1981 4164500600020 ENDBIB 18 0 4164500600021 COMMON 1 3 4164500600022 EN-RES-NRM 4164500600023 EV 4164500600024 3.4 4164500600025 ENDCOMMON 3 0 4164500600026 DATA 3 1 4164500600027 EN-RES DATA DATA-ERR 4164500600028 EV MICRO-EV MICRO-EV 4164500600029 4.35 0.45 0.07 4164500600030 ENDDATA 3 0 4164500600031 ENDSUBENT 30 0 4164500699999 ENDENTRY 6 0 4164599999999