ENTRY 22345 20220215 23092234500000001 SUBENT 22345001 20220215 23092234500100001 BIB 10 40 2234500100002 TITLE Experimental studies of keV energy neutron-induced 2234500100003 reactions relevant to astrophysics and nuclear 2234500100004 physics 2234500100005 AUTHOR (T.Shima,T.Kii,T.Kikuchi,F.Okazaki,T.Kobayashi,T.Baba, 2234500100006 Y.Nagai,M.Igashira) 2234500100007 INSTITUTE (2JPNTIT) Department of Applied Physics and Research 2234500100008 Laboratory for Nuclear Reactors (M.Igashira) of the 2234500100009 Tokyo Institute of Technology 2234500100010 REFERENCE ((S,JAERI-C-97-004,131,1997)= 2234500100011 (R,INDC(JPN)-178,47,1997)) Main reference, 2234500100012 data are given 2234500100013 (J,NP/A,621,231C,1997) Subent 005,006 carbon-13 data 2234500100014 in Tables.First author T.Shima . 2234500100015 REL-REF (I,,T.Shima+,J,NIM/A,356,347,1995) Experim. details 2234500100016 (M,23002001,T.Ohsaki+,J,AJ,422,(2),912,1994) - Facility2234500100017 description and data for C-12(n,gamma) reaction 2234500100018 (O,23002001,T.Shima+,S,JAERI-C-97-004,131,1997) 2234500100019 Data for C-12 Table 1 of S,JAERI-C-97-004,131,1997) 2234500100020 in Entry 23002, Subents 002,003. 2234500100021 FACILITY (VDGT,2JPNTIT) Supposed proton Van-de-Graaff, protons 2234500100022 energies were adjusted to 1.955, 2.13 and 2.48 MeV 2234500100023 in order to produce neutrons in energy ranges 2234500100024 from 10 keV to 600 keV. 2234500100025 METHOD (TOF) Time-of-flight method was used for neutron 2234500100026 energy determination 2234500100027 DETECTOR (SCIN) Li-6 glass scintillation detector for neutron 2234500100028 beam monitoring 2234500100029 INC-SOURCE (P-LI7) Neutrons were produced in the energy ranges 2234500100030 10-75, 30-250 and 450-600 keV. 1.5 ns pulsed 2234500100031 neutron beam was used 2234500100032 HISTORY (19970828C) + + Compiled by S.M. + + 2234500100033 (20061213A) Corrected S.M. Date is corrected 2234500100034 (20070422A) Corrected by SM, SAN 002, 003 2234500100035 (20121210A) SD: Subents 002, 003 were deleted. 2234500100036 Duplication with 23002.002, 003. 2234500100037 (20161027A) M.M. Ref. J,NP/A,621,231c,1997 was added. 2234500100038 BIB information was updated . 2234500100039 Monitor information was added. 2234500100040 (20220216U) SD: Year of the JAERI-C-97-004,131 ref. 2234500100041 updated (1996 -> 1997). 2234500100042 ENDBIB 40 0 2234500100043 NOCOMMON 0 0 2234500100044 ENDSUBENT 43 0 2234500199999 NOSUBENT 22345002 20121210 22342234500200001 NOSUBENT 22345003 20121210 22342234500300001 SUBENT 22345004 20161027 22552234500400001 BIB 8 13 2234500400002 REACTION (3-LI-7(N,G)3-LI-8,,SIG) 2234500400003 DETECTOR (NAICR) Four Na-I(Tl) crystals with a diameter of 22.9 2234500400004 cm and length of 20.3 cm 2234500400005 PART-DET (G,N) 2234500400006 SAMPLE .Disk of Li2-O oxide with a diameter of 64 mm, 2234500400007 Li-7 content is 99,94 % , 2234500400008 number density is 0.101 atoms/barn 2234500400009 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2234500400010 MONIT-REF (,P.G.Young,3,ENDF/B-VI,,1991) 2234500400011 STATUS (PRELM) Declared by authors as preliminary . 2234500400012 (TABLE) Text,page 135 of JAERI-C-97-004,131 . 2234500400013 ERR-ANALYS (DATA-ERR) Errors are not specified. Assumed total 2234500400014 by the compiler 2234500400015 ENDBIB 13 0 2234500400016 NOCOMMON 0 0 2234500400017 DATA 3 2 2234500400018 EN DATA DATA-ERR 2234500400019 KEV MICRO-B MICRO-B 2234500400020 24.9 52.3 3.3 2234500400021 50.7 32.1 2. 2234500400022 ENDDATA 4 0 2234500400023 ENDSUBENT 22 0 2234500499999 SUBENT 22345005 20161027 22552234500500001 BIB 13 34 2234500500002 REACTION (6-C-13(N,G)6-C-14,PAR,SIG) 2234500500003 METHOD (GSPEC) Prompt gamma spectrometry 2234500500004 DETECTOR (NAICR) One central Na-I(Tl) scintillation counter with2234500500005 diameter of 7.6 cm and a length of 15.5 cm and another2234500500006 cylindrical one with diameter of 25.4 cm and length of2234500500007 28 cm were used for gamma-rays detection 2234500500008 PART-DET (G,N) 2234500500009 SAMPLE .Carbon sample of 99.9 pc purity packed in a container 2234500500010 made of natural carbon. Number thickness is O.O459 2234500500011 atoms/B 2234500500012 90mm diameter, 30mm thickness, 63.1g weight. 2234500500013 C-13 powder were packed in a cylindrical container made2234500500014 of 1mm thick natural graphite. 2234500500015 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2234500500016 MONIT-REF (,P.G.Young,3,ENDF/B-VI,,1991) 2234500500017 CORRECTION Background was measured without sample. 2234500500018 Correction for self-shielding and multiple scattering 2234500500019 of neutrons in the sample were done via Monte Carlo 2234500500020 code TIME-MULTI. 2234500500021 REL-REF (N,,K.Senoo+,J,NIM/A,339,556,1994) code TIME-MULTI. 2234500500022 ERR-ANALYS (DATA-ERR) Errors are not specified. Assumed total 2234500500023 by the compiler 2234500500024 COMMENT .Number levels in data section given under LVL-NUMB=1 2234500500025 and LVL-NUMB=5 correspond to transitions from the 1st 2234500500026 excited to ground level and the 5Th excited to the 2234500500027 ground level, correspondingly 2234500500028 STATUS (TABLE) Table 1 of J,NP/A,621,231c,1997 2234500500029 = Table 2 of JAERI-C-97-004,131,1996 2234500500030 Declared by authors as preliminary 2234500500031 in S,JAERI-C-97-004,131,1996 2234500500032 HISTORY (20061213U) One wrong data line deleted 2234500500033 (20061213U) Last checking has been done. 2234500500034 (20161027A) M.M. MONITOR,MONIT-REF,CORRECTION were 2234500500035 added. 2234500500036 ENDBIB 34 0 2234500500037 NOCOMMON 0 0 2234500500038 DATA 6 6 2234500500039 EN-MIN EN-MAX LVL-NUMB E-LVL DATA DATA-ERR 2234500500040 KEV KEV NO-DIM MEV MICRO-B MICRO-B 2234500500041 10. 40. 0. 1.3 0.6 2234500500042 10. 40. 1. 12.2 2.6 2234500500043 10. 40. 5. 6.3 2.5 2234500500044 41. 87. 0. 0.8 0.3 2234500500045 41. 87. 1. 9.8 1.3 2234500500046 41. 87. 5. 1.6 1.1 2234500500047 ENDDATA 8 0 2234500500048 ENDSUBENT 47 0 2234500599999 SUBENT 22345006 20161027 22552234500600001 BIB 10 30 2234500600002 REACTION (6-C-13(N,G)6-C-14,,SIG) 2234500600003 METHOD (GSPEC) Prompt gamma spectrometry 2234500600004 DETECTOR (NAICR) One central Na-I(Tl) scintillation counter with2234500600005 diameter of 7.6 cm and a length of 15.5 cm and another2234500600006 cylindrical one with diameter of 25.4 cm and length of2234500600007 28 cm were used for gamma-rays detection 2234500600008 PART-DET (G,N) 2234500600009 SAMPLE .Carbon sample of 99.9% purity packed in a container 2234500600010 made of natural carbon. Thickness is 0.0459 atoms/b . 2234500600011 90mm diameter, 30mm thickness, 63.1g weight. 2234500600012 C-13 powder were packed in a cylindrical container made2234500600013 of 1mm thick natural graphite. 2234500600014 ANALYSIS Cross sections were determined using known ratios of 2234500600015 the transitions between the excited states and ground 2234500600016 state from REL-REF of F.Ajzenberg-Selove. 2234500600017 REL-REF (R,,F.Ajzenberg-Selove,J,NP/A,449,1,1986) 2234500600018 (A,,S.Raman+,J,PR/C,41,458,1990) 2234500600019 20+-9 microbarn at En-mean=40 keV 2234500600020 ERR-ANALYS (DATA-ERR) Errors are not specified. Assumed total 2234500600021 by the compiler 2234500600022 STATUS (TABLE) Table 2 of J,NP/A,621,231c,199; 2234500600023 Table 2 of JAERI-C-97-004,131,1996. 2234500600024 Declared by authors as preliminary 2234500600025 in S,JAERI-C-97-004,131,1996 2234500600026 (DEP,22345005) Measured partial CS, see ANALYSIS. 2234500600027 HISTORY (20061213U) One wrong data line deleted 2234500600028 (20061213U) Last checking has been done. 2234500600029 (20121210U) SD: STATUS (PRELM) was added. 2234500600030 ERR-T -> DATA-ERR 2234500600031 (20161027A) M.M. ANALYSIS,REL-REF were added. 2234500600032 ENDBIB 30 0 2234500600033 NOCOMMON 0 0 2234500600034 DATA 4 2 2234500600035 EN-MIN EN-MAX DATA DATA-ERR 2234500600036 KEV KEV MICRO-B MICRO-B 2234500600037 10. 40. 19.8 3.7 2234500600038 41. 87. 12.2 1.7 2234500600039 ENDDATA 4 0 2234500600040 ENDSUBENT 39 0 2234500699999 SUBENT 22345007 20161027 22552234500700001 BIB 10 20 2234500700002 REACTION (7-N-14(N,P)6-C-14,,SIG) 2234500700003 DETECTOR (SCIN) Gas scintillation drift chamber (CSDC) filled 2234500700004 with He and N2 mixture and serves as an active 2234500700005 gas target 2234500700006 Detection efficiency ~100%, solid angle 4PI. 2234500700007 MONITOR (2-HE-3(N,P)1-H-3,,SIG) Used for calibrating detection2234500700008 efficiency of CSDC 2234500700009 MONIT-REF (,G.Hale+,3,ENDF/B-VI,,1990) 2234500700010 PART-DET (P,N) 2234500700011 SAMPLE .Two kinds of the gas samples were used - one a mixture2234500700012 of 80 % of natural He with 20 %c of N2 (natural 2234500700013 sample) and another a mixture containing 0.31 % of 2234500700014 He-3 (enriched sample). Gas pressure is 600 Torr 2234500700015 ADD-RES (P-SPC) A net spectrum of protons obtained in the 2234500700016 measurements of the enriched sample 2234500700017 ERR-ANALYS (ERR-SYS) Total systematic error 2234500700018 (ERR-S) Statistical error 2234500700019 STATUS (TABLE) Text, page 139 of S,JAERI-C-97-004,131,1996 2234500700020 REL-REF (A,13164001,P.E.Koehler+,J,PR/C,39,1655,1989) 2234500700021 (A,,Yu.M.Gledenov+,J,ZP/A,348,199,1994) 2234500700022 ENDBIB 20 0 2234500700023 NOCOMMON 0 0 2234500700024 DATA 4 2 2234500700025 EN DATA ERR-S ERR-SYS 2234500700026 KEV MB MB MB 2234500700027 35.8 1.67 0.33 0.13 2234500700028 67.1 1.19 0.14 0.1 2234500700029 ENDDATA 4 0 2234500700030 ENDSUBENT 29 0 2234500799999 ENDENTRY 7 0 2234599999999