ENTRY 30248 20090605 31383024800000001 SUBENT 30248001 20090605 31383024800100001 BIB 14 53 3024800100002 TITLE P-wave neutron capture in heavy nuclei at 25 keV 3024800100003 AUTHOR (K.Siddappa,J.Rama Rao,M.Sriramachandra Murty) 3024800100004 INSTITUTE (3INDAUW) 3024800100005 SAMPLE Metal powders or oxides with purity greater than 99.9% 3024800100006 kept in cylindrical perpex tubes 13 cm in diam. 3024800100007 MONITOR (53-I-127(N,G)53-I-128,,SIG) 3024800100008 MONIT-REF (,J.C.Robertson,J,NP,71,417,196509) 3024800100009 INC-SOURCE (PHOTO) Sb-Be photoneutron source of 20 Curies. 3024800100010 Given neutron energy in J. Phys., 5A, 877, 1972 3024800100011 is 25 +- 5 keV. Given neutron energy in J. of Annals of3024800100012 Phys., 83, 355, 1974 is 23 +- 5 keV. 3024800100013 METHOD (ACTIV) Activation method plus absolute gamma counting 3024800100014 Effective photopeak and total efficiencies of detector 3024800100015 were determined experimentally and used in the 3024800100016 evaluation of the cross sections 3024800100017 DETECTOR (NAICR) A 7F8 Harshaw well-type NaI(Tl) crystal. 3024800100018 CORRECTION The degradation of energy of keV neutrons within the 3024800100019 target material is considered negligible. 3024800100020 ERR-ANALYS (ERR-T) Error includes as follows: 3024800100021 - statistical error in the photo peak area varies from3024800100022 1-3% depending upon the statistics 3024800100023 - errors associated with the cross section 3024800100024 measurement, errors in the weights of the sample, 3024800100025 duration of irradiation, periods of counting etc., 3024800100026 are usually small (less than 1%) 3024800100027 - errors in the efficiencies (approx.5% for gamma rays3024800100028 greater than 200 keV and approx. 7% for lower energy3024800100029 gammas) 3024800100030 - errors in half lives (less than 2% usually 3024800100031 and 5% in few cases) 3024800100032 - errors in gamma abundances (5 - 10%) 3024800100033 - errors in internal conversion coefficients (range 3024800100034 from 1-10%) 3024800100035 - errors in standard iodine cross section (3.1%) 3024800100036 COMMENT s-wave neutron contributions were evaluated making use 3024800100037 of the low energy resonance parameters available in 3024800100038 literature. p-wave capture cross section obtained by 3024800100039 subtracting s-wave capture contribution from the 3024800100040 measured total cross sections. 3024800100041 STATUS (TABLE) Due to the discrepancy of the results published3024800100042 in different sources, the main reference(s) which (on 3024800100043 compiler's opinion) contains the final data is given 3024800100044 in each subentry 3024800100045 HISTORY (19730626C) FM 3024800100046 (19831110A) Altered by VP. See explanation under status3024800100047 (19880714U) TMK Correction, Err-analys were appended. 3024800100048 Energy of neutron was corrected. Ref. was added in 3024800100049 subent 6,8,9,10 and 14. 3024800100050 (19900109U)VOF.Authors'order changed accord.to main ref3024800100051 (20040311U) SD: corrected 4-dig. year and lower cases. 3024800100052 (20080423A) BIB section updated 3024800100053 (20090604A) SD: data were corrected according to final 3024800100054 publication 3024800100055 ENDBIB 53 0 3024800100056 COMMON 5 3 3024800100057 EN EN-RSL EN-NRM MONIT MONIT-ERR 3024800100058 KEV KEV KEV MB MB 3024800100059 25. 5. 24. 832. 26. 3024800100060 ENDCOMMON 3 0 3024800100061 ENDSUBENT 60 0 3024800199999 SUBENT 30248002 20090605 31383024800200001 BIB 4 12 3024800200002 REACTION (34-SE-74(N,G)34-SE-75,,SIG) 3024800200003 REFERENCE (J,JP/A,5,877,197206) Final data 3024800200004 (C,70MADURAI,2,29,197002) Preliminary data, superseded 3024800200005 by data published in Journal of Phys,5A,877,(1972) 3024800200006 COMMENT Calculated s-wave contribution = 96.+-18. mb 3024800200007 Deduced p-wave cross section = 102.+-35. mb 3024800200008 -Compiler's remark- There is no explanation why a 3024800200009 drastically different value of 2383.mb was reported 3024800200010 at the Madurai conference 3024800200011 HISTORY (19831110A) Altered by VP 3024800200012 (20090604A) SD: data were corrected according to final 3024800200013 publication 3024800200014 ENDBIB 12 0 3024800200015 NOCOMMON 0 0 3024800200016 DATA 2 1 3024800200017 DATA ERR-T 3024800200018 B B 3024800200019 0.198 0.030 3024800200020 ENDDATA 3 0 3024800200021 ENDSUBENT 20 0 3024800299999 SUBENT 30248003 20090225 31363024800300001 BIB 5 6 3024800300002 REACTION (38-SR-84(N,G)38-SR-85-M,,SIG) 3024800300003 DECAY-DATA Not given 3024800300004 REFERENCE (J,JP/A,5,877,197206) final data 3024800300005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024800300006 STATUS (TABLE) Table 1 of J,JP/A,5,877,1972 3024800300007 HISTORY (20090225A) On. SF4 and numerical data corrected 3024800300008 ENDBIB 6 0 3024800300009 NOCOMMON 0 0 3024800300010 DATA 6 1 3024800300011 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024800300012 KEV KEV MB MB MB MB 3024800300013 25. 5. 470. 56. 832. 26. 3024800300014 ENDDATA 3 0 3024800300015 ENDSUBENT 14 0 3024800399999 SUBENT 30248004 20090225 31363024800400001 BIB 6 10 3024800400002 REACTION (47-AG-109(N,G)47-AG-110-M,,SIG) 3024800400003 DECAY-DATA Not given 3024800400004 REFERENCE (J,JP/A,5,877,197206) final data 3024800400005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024800400006 COMMENT -compiler remark- there is no explanation why a 3024800400007 drastically different value of 15 mb was reported 3024800400008 at the Madurai conference 3024800400009 STATUS (TABLE) Table 1 of J,JP/A,5,877,1972 3024800400010 HISTORY (19831110A) VP. Data altered 3024800400011 (20090225A) On. STATUS added, Numerical data corrected 3024800400012 ENDBIB 10 0 3024800400013 NOCOMMON 0 0 3024800400014 DATA 6 1 3024800400015 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024800400016 KEV KEV MB MB MB MB 3024800400017 25. 5. 75. 10. 832. 26. 3024800400018 ENDDATA 3 0 3024800400019 ENDSUBENT 18 0 3024800499999 SUBENT 30248005 20090225 31363024800500001 BIB 5 6 3024800500002 REACTION (52-TE-122(N,G)52-TE-123-M,,SIG) 3024800500003 DECAY-DATA Not given 3024800500004 REFERENCE (J,JP/A,5,877,197206) final data 3024800500005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024800500006 STATUS (TABLE) Table 1 of J,JP/A,5,877,1972 3024800500007 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024800500008 ENDBIB 6 0 3024800500009 NOCOMMON 0 0 3024800500010 DATA 6 1 3024800500011 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024800500012 KEV KEV MB MB MB MB 3024800500013 25. 5. 177. 23. 832. 26. 3024800500014 ENDDATA 3 0 3024800500015 ENDSUBENT 14 0 3024800599999 SUBENT 30248006 20090225 31363024800600001 BIB 5 12 3024800600002 REACTION (65-TB-159(N,G)65-TB-160,,SIG) 3024800600003 REFERENCE (J,AP,83,355,1974) final data 3024800600004 (J,JP/A,5,877,197206) revised data, superseded 3024800600005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024800600006 COMMENT Calculated S-wave contribution = 2339.+-500.mb 3024800600007 deduced P-wave cross section = 610.+-604. 3024800600008 -compiler remark- there is no explanation why a 3024800600009 drastically different value of 6243.mb was reported 3024800600010 at the Madurai conference 3024800600011 STATUS (TABLE) Table II of J,AP,83,355,1974 3024800600012 HISTORY (19831110A) VP 3024800600013 (20090225A) On. STATUS added, Numerical data corrected 3024800600014 ENDBIB 12 0 3024800600015 NOCOMMON 0 0 3024800600016 DATA 6 1 3024800600017 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024800600018 KEV KEV MB MB MB MB 3024800600019 23. 5. 2949. 442. 832. 26. 3024800600020 ENDDATA 3 0 3024800600021 ENDSUBENT 20 0 3024800699999 SUBENT 30248007 20090225 31363024800700001 BIB 5 6 3024800700002 REACTION (70-YB-168(N,G)70-YB-169,,SIG) 3024800700003 REFERENCE (C,70MADURAI,2,29,197002) 3024800700004 COMMENT Calculated S-wave contribution = 0.329 b 3024800700005 deduced P-wave cross section =48.641 b 3024800700006 STATUS (TABLE) Table I of C,70MADURAI,2,29,1970 3024800700007 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024800700008 ENDBIB 6 0 3024800700009 NOCOMMON 0 0 3024800700010 DATA 5 1 3024800700011 EN DATA ERR-T MONIT MONIT-ERR 3024800700012 KEV MB MB MB MB 3024800700013 25. 48970. 4910. 836. 26. 3024800700014 ENDDATA 3 0 3024800700015 ENDSUBENT 14 0 3024800799999 SUBENT 30248008 20090225 31363024800800001 BIB 5 11 3024800800002 REACTION (70-YB-174(N,G)70-YB-175,,SIG) 3024800800003 REFERENCE (J,AP,83,355,1974) final data 3024800800004 (J,JP/A,5,877,197206) revised data, superseded 3024800800005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024800800006 COMMENT Calculated S-wave contribution 61.+-20. mb 3024800800007 deduced P-wave cross section 184.+-40. mb 3024800800008 -compiler remark- there is no explanation why a 3024800800009 drastically different value of 2403.mb was reported 3024800800010 at the Madurai conference 3024800800011 STATUS (TABLE) Table II of J,AP,83,355,1974 3024800800012 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024800800013 ENDBIB 11 0 3024800800014 NOCOMMON 0 0 3024800800015 DATA 6 1 3024800800016 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024800800017 KEV KEV MB MB MB MB 3024800800018 23. 5. 240. 30. 832. 26. 3024800800019 ENDDATA 3 0 3024800800020 ENDSUBENT 19 0 3024800899999 SUBENT 30248009 20090225 31363024800900001 BIB 5 11 3024800900002 REACTION (70-YB-176(N,G)70-YB-177,,SIG) 3024800900003 REFERENCE (J,AP,83,355,1974) final data 3024800900004 (J,JP/A,5,877,197206) revised data, superseded 3024800900005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024800900006 COMMENT Calculated S-wave contribution = 46.+-14.mb 3024800900007 deduced P-wave contribution = 164.+-34. mb 3024800900008 -compiler remark- there is no explanation why a 3024800900009 drastically different value of 107. mb was reported 3024800900010 at the Madurai conference 3024800900011 STATUS (TABLE) Table II of J,AP,83,355,1974 3024800900012 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024800900013 ENDBIB 11 0 3024800900014 NOCOMMON 0 0 3024800900015 DATA 6 1 3024800900016 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024800900017 KEV KEV MB MB MB MB 3024800900018 23. 5. 210. 31. 832. 26. 3024800900019 ENDDATA 3 0 3024800900020 ENDSUBENT 19 0 3024800999999 SUBENT 30248010 20090225 31363024801000001 BIB 5 11 3024801000002 REACTION (69-TM-169(N,G)69-TM-170,,SIG) 3024801000003 REFERENCE (J,AP,83,355,1974) final data 3024801000004 (J,JP/A,5,877,197206) revised data, superseded 3024801000005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024801000006 COMMENT Calculated S-wave contribution 1078.+-210.mb 3024801000007 deduced P-wave cross section 486.+-300.mb 3024801000008 -compiler remark- there is no explanation why a 3024801000009 drastically different value of 2202.mb was reported 3024801000010 at the Madurai conference 3024801000011 STATUS (TABLE) Table II of J,AP,83,355,1974 3024801000012 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024801000013 ENDBIB 11 0 3024801000014 NOCOMMON 0 0 3024801000015 DATA 6 1 3024801000016 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024801000017 KEV KEV MB MB MB MB 3024801000018 23. 5. 1564. 235. 832. 26. 3024801000019 ENDDATA 3 0 3024801000020 ENDSUBENT 19 0 3024801099999 SUBENT 30248011 20090225 31363024801100001 BIB 6 9 3024801100002 REACTION (72-HF-178(N,G)72-HF-179-M,,SIG) 3024801100003 DECAY-DATA Not given 3024801100004 REFERENCE (J,JP/A,5,877,197206) final data 3024801100005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024801100006 COMMENT -compiler remark- there is no explanation why a 3024801100007 drastically different value of 267. mb was reported 3024801100008 at the Madurai conference 3024801100009 STATUS (TABLE) Table 1 of J,JP/A,5,877,1972 3024801100010 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024801100011 ENDBIB 9 0 3024801100012 NOCOMMON 0 0 3024801100013 DATA 6 1 3024801100014 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024801100015 KEV KEV MB MB MB MB 3024801100016 25. 5. 217. 27. 832. 26. 3024801100017 ENDDATA 3 0 3024801100018 ENDSUBENT 17 0 3024801199999 SUBENT 30248012 20090225 31363024801200001 BIB 6 9 3024801200002 REACTION (72-HF-179(N,G)72-HF-180-M,,SIG) 3024801200003 DECAY-DATA Not given 3024801200004 REFERENCE (J,JP/A,5,877,197206) final data 3024801200005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024801200006 COMMENT -compiler remark- there is no explanation why a 3024801200007 drastically different value of 13. mb was reported 3024801200008 at the Madurai conference 3024801200009 STATUS (TABLE) Table 1 of J,JP/A,5,877,1972 3024801200010 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024801200011 ENDBIB 9 0 3024801200012 NOCOMMON 0 0 3024801200013 DATA 6 1 3024801200014 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024801200015 KEV KEV MB MB MB MB 3024801200016 25. 5. 215. 25. 832. 26. 3024801200017 ENDDATA 3 0 3024801200018 ENDSUBENT 17 0 3024801299999 SUBENT 30248013 20090225 31363024801300001 BIB 6 8 3024801300002 REACTION (77-IR-191(N,G)77-IR-192-M1,,SIG) 3024801300003 DECAY-DATA Not given. Assumed to 1st metastable state by compiler.3024801300004 REFERENCE (C,70MADURAI,2,29,197002) 3024801300005 COMMENT Calculated S-wave contribution = 1.082 b 3024801300006 deduced P-wave cross section = 8.118 b 3024801300007 STATUS (TABLE) Table I of C,70MADURAI,2,29,1970 3024801300008 HISTORY (19900109A) VOF.- reaction corrected + comment added .-3024801300009 (20090225A) On. STATUS added, Numerical data corrected 3024801300010 ENDBIB 8 0 3024801300011 NOCOMMON 0 0 3024801300012 DATA 5 1 3024801300013 EN DATA ERR-T MONIT MONIT-ERR 3024801300014 KEV MB MB MB MB 3024801300015 25. 9200. 911. 836. 26. 3024801300016 ENDDATA 3 0 3024801300017 ENDSUBENT 16 0 3024801399999 SUBENT 30248014 20090225 31363024801400001 BIB 5 9 3024801400002 REACTION (76-OS-192(N,G)76-OS-193,,SIG) 3024801400003 REFERENCE (J,AP,83,355,1974) final data 3024801400004 (J,JP/A,5,877,197206) revised data, superseded 3024801400005 (C,70MADURAI,2,29,197002) preliminary data, superseded 3024801400006 COMMENT -compiler remark- there is no explanation why a 3024801400007 drastically different value of 296.mb was reported 3024801400008 at the Madurai conference 3024801400009 STATUS (TABLE) Table II of J,AP,83,355,1974 3024801400010 HISTORY (20090225A) On. STATUS added, Numerical data corrected 3024801400011 ENDBIB 9 0 3024801400012 NOCOMMON 0 0 3024801400013 DATA 6 1 3024801400014 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024801400015 KEV KEV MB MB MB MB 3024801400016 23. 5. 252. 30. 832. 26. 3024801400017 ENDDATA 3 0 3024801400018 ENDSUBENT 17 0 3024801499999 SUBENT 30248015 20090225 31363024801500001 BIB 5 6 3024801500002 REACTION (34-SE-78(N,G)34-SE-79-M,,SIG) 3024801500003 DECAY-DATA Not given 3024801500004 REFERENCE (J,JP/A,5,877,197206) 3024801500005 STATUS (TABLE) Table 1 of J,JP/A,5,877,1972 3024801500006 HISTORY (19831110L) VP 3024801500007 (20090225A) On. STATUS added, Numerical data corrected 3024801500008 ENDBIB 6 0 3024801500009 NOCOMMON 0 0 3024801500010 DATA 6 1 3024801500011 EN EN-RSL DATA ERR-T MONIT MONIT-ERR 3024801500012 KEV KEV MB MB MB MB 3024801500013 25. 5. 98. 14. 832. 26. 3024801500014 ENDDATA 3 0 3024801500015 ENDSUBENT 14 0 3024801599999 ENDENTRY 15 0 3024899999999