ENTRY 30129 20160210 31733012900000001 SUBENT 30129001 20160210 31733012900100001 BIB 16 64 3012900100002 INSTITUTE (3ARGCNE) 3012900100003 REFERENCE (J,CJP,46,2473,196811)Full dscr.,Ratio to thr-act sigma3012900100004 (R,CNEA-274,1970) same as CJP 46 2473 1968,in Spanish 3012900100005 (C,70HELSINKI,2,589,197006) Same values, in Spanish 3012900100006 AUTHOR (M.D.Ricabarra,R.Turjanski,G.H.Ricabarra,C.B.Bigham) 3012900100007 TITLE Neutron activation resonance integrals of Se-74,Se-78, 3012900100008 Se-80,Br-81,I-127,Te-130,Ba-138,Ce-140 and Ce-142 3012900100009 EXP-YEAR (1968) 3012900100010 FACILITY (REAC,3ARGCNE) RA-1 3012900100011 INC-SOURCE (REAC)Central reflector and thermal column of react.RA13012900100012 Flux in the reflector position was 2x10e12 n/cm2xs and 3012900100013 in the thermal column 10e+11 n/cm2xs 3012900100014 SAMPLE Solution containing standard and unknown in the desired3012900100015 proportions. Aliquots of 0.1 Ml were dried on small 3012900100016 pieces of filter paper and sealed into plastic bags. 3012900100017 Total diameter less than 1cm. 3012900100018 METHOD Pairs of samples containing the same proportions of 3012900100019 unknown element and standard, in order to give approxi-3012900100020 mately equal unknown and standard gamma-ray intensities3012900100021 in the gamma-ray spectrum, were irradiated bare and Cd 3012900100022 covered(cadmium ratio method) or in two neutron spectra3012900100023 with widely different resonance neutron fractions (two 3012900100024 spectrum method).The gamma-ray spectra of the two 3012900100025 samples were then measured and the relative number of 3012900100026 counts in the photopeaks calculated. Both methods give 3012900100027 the relative ratio of resonance-to-thermal capture 3012900100028 for unknown and standard. Only ratios of ratios were 3012900100029 measured, except for measurement of the cadmium ratio 3012900100030 to gold, to obtain epithermal spectral index of the 3012900100031 neutron spectra. Measurements were made only on 3012900100032 well-resolved and well separated peaks. 3012900100033 DETECTOR (GELI)Encapsulated Li-Ge diode with an effective volume3012900100034 of 5 cm3 and a resolution of 2.5 keV FWHM for the 3012900100035 Gd-153 gamma rays at 96.7 and 103.4 keV. 3012900100036 ANALYSIS Parameter measured was S0,equal to 2/sqrt(pi) times the3012900100037 ratio of the reduced resonance integral to the thermal 3012900100038 absorption cross section. The S0 values were obtained 3012900100039 through the cadmium ratios. 3012900100040 Unknown cross sections assumed to be 1/v below cadmium 3012900100041 cutoff. Transmission of cadmium for resonance neutrons 3012900100042 calculated with the infinite slab approximation, using 3012900100043 the absorption cross section as a transmission cross 3012900100044 section 3012900100045 MONITOR All S0 values were determined relative to gold, with an3012900100046 assumed value S0(Au)=17.7. For activities with shorter 3012900100047 half-lives In-115 was used as a secondary standard with3012900100048 a value S0(In-115)=18.7+-0.1,which was determined by 3012900100049 using gold as standard. Resonance-integral value 3012900100050 deduced from ratio of resonance-to-thermal capture 3012900100051 by multiplying by the thermal absorption cross section 3012900100052 taken from Hughes and Schwarz (BNL-325,2Nd ed. 1958) 3012900100053 STATUS (APRVD) G.Ricabarra, 22 March 1973 3012900100054 HISTORY (19721102C) 3012900100055 (20080208A) BIB section updated 3012900100056 (20160209A) VS. SF4 and DECAY-DATA corrected in 004 3012900100057 SF8=RNV added to resonance integrals in 002-011 3012900100058 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 to3012900100059 subents. EN-NRM2 added. 3012900100060 CORRECTION Corrections were made for the continuum and counter 3012900100061 background, for resonance self-shielding and for 3012900100062 neutron spectrum deviation from the 1/E form. 3012900100063 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties. 3012900100064 Error quoted is standard error of average value of the 3012900100065 ratio of ratios obtained from several irradiations. 3012900100066 ENDBIB 64 0 3012900100067 NOCOMMON 0 0 3012900100068 ENDSUBENT 67 0 3012900199999 SUBENT 30129002 20160406 31733012900200001 BIB 5 16 3012900200002 REACTION 1((34-SE-74(N,G)34-SE-75,,RI,,RNV)// 3012900200003 (34-SE-74(N,G)34-SE-75,,SIG)) 3012900200004 2(34-SE-74(N,G)34-SE-75,,RI,,RNV) 3012900200005 Ratio of the reduced resonance integral to the 3012900200006 absorption cross section 3012900200007 METHOD Measurements made relative to the 412keV gold gamma-ray3012900200008 by measuring the 265-keV,280-keV and 405-keV gamma-rays3012900200009 of Se-75. The three cadmium ratios agreed to within 3012900200010 0.5%. Self-shielding was negligible. Applied a 3012900200011 -3% spectrum correction. 3012900200012 MONITOR 2(34-SE-74(N,G)34-SE-75,,SIG) 3012900200013 at energy E0= 0.025 eV 3012900200014 COMMENT Measured S0 value S0=10.3+-0.1 3012900200015 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900200016 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900200017 EN-NRM2 added. 3012900200018 ENDBIB 16 0 3012900200019 COMMON 6 3 3012900200020 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900200021 EV EV EV EV B B 3012900200022 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 5.0000E+01 7.0000E+003012900200023 ENDCOMMON 3 0 3012900200024 DATA 4 1 3012900200025 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900200026 NO-DIM NO-DIM B B 3012900200027 9.1300E+00 9.0000E-02 4.5600E+02 6.4000E+01 3012900200028 ENDDATA 3 0 3012900200029 ENDSUBENT 28 0 3012900299999 SUBENT 30129003 20160406 31733012900300001 BIB 6 17 3012900300002 REACTION 1((34-SE-78(N,G)34-SE-79-M,,RI,,RNV)// 3012900300003 (34-SE-78(N,G)34-SE-79-M,,SIG)) 3012900300004 2(34-SE-78(N,G)34-SE-79-M,,RI,,RNV)Resonance integral 3012900300005 for formation of 3.9 Minutes isomeric state 3012900300006 DECAY-DATA (34-SE-79-M,3.9MIN) 3012900300007 METHOD Measured relative to that of the 103-keV gamma-ray from3012900300008 Se-81m,and the ratio made relative to gold by using the3012900300009 ratio of spectral indices and the cadmium ratio for 3012900300010 Se-80 measured in the same experiment. 3012900300011 The self-shielding was assumed negligible and a correc-3012900300012 tion of - 10% was applied to the spectrum. 3012900300013 MONITOR (34-SE-78(N,G)34-SE-79-M,,SIG) 3012900300014 at energy E0= 0.025 eV 3012900300015 COMMENT Measured S0 value, S0=12.3+-0.3 3012900300016 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900300017 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900300018 EN-NRM2 added. 3012900300019 ENDBIB 17 0 3012900300020 COMMON 6 3 3012900300021 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900300022 EV EV EV EV B B 3012900300023 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 4.2000E-01 5.0000E-023012900300024 ENDCOMMON 3 0 3012900300025 DATA 4 1 3012900300026 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900300027 NO-DIM NO-DIM B B 3012900300028 1.0900E+01 3.0000E-01 4.5800E+00 6.0000E-01 3012900300029 ENDDATA 3 0 3012900300030 ENDSUBENT 29 0 3012900399999 SUBENT 30129004 20160210 31733012900400001 BIB 6 17 3012900400002 REACTION 1((34-SE-80(N,G)34-SE-81-M,,RI,,RNV)// 3012900400003 (34-SE-80(N,G)34-SE-81-M,,SIG)) 3012900400004 2(34-SE-80(N,G)34-SE-81-M,,RI,,RNV) 3012900400005 Reduced resonance integral and ratio to thermal sigma 3012900400006 DECAY-DATA (34-SE-81-M,62.MIN) 3012900400007 METHOD Measurement of the 103-keV gamma ray from Se-81(62 min)3012900400008 relative to the 136-keV gamma ray from Se-75 gave value3012900400009 of S0 for formation of the isomeric state. Used yields 3012900400010 of Bishop et al.(NP 60 241 1964) to obtain total S0. 3012900400011 Applied a - 13% spectrum correction 3012900400012 for value of S0 for isomeric state see 30129.020 3012900400013 MONITOR 2(34-SE-80(N,G)34-SE-81,,SIG) 3012900400014 at energy E0= 0.025 eV 3012900400015 COMMENT Measured S0 value, S0=2.65+-0.02 3012900400016 HISTORY (20160209A) VS. -M added in SF4 and DECAY-DATA 3012900400017 SF8=RNV added to resonance integrals, EN-NRM2 added. 3012900400018 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900400019 ENDBIB 17 0 3012900400020 COMMON 6 3 3012900400021 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900400022 EV EV EV EV B B 3012900400023 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 6.1000E-01 5.0000E-023012900400024 ENDCOMMON 3 0 3012900400025 DATA 4 1 3012900400026 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900400027 NO-DIM NO-DIM B B 3012900400028 2.3500E+00 2.0000E-02 1.4300E+00 1.6000E-01 3012900400029 ENDDATA 3 0 3012900400030 ENDSUBENT 29 0 3012900499999 SUBENT 30129005 20160406 31733012900500001 BIB 5 21 3012900500002 REACTION 1((35-BR-81(N,G)35-BR-82,,RI,,RNV)// 3012900500003 (35-BR-81(N,G)35-BR-82,,SIG)) 3012900500004 2(35-BR-81(N,G)35-BR-82,,RI,,RNV) 3012900500005 Reduced resonance integral and ratio to thermal sigma 3012900500006 METHOD The 554- and 620-keV gamma rays of Br-82 were measured 3012900500007 relative to the 412-keV gold gamma ray, samples with 3012900500008 1.0,2.0 and 20.4 millig/cm2 of Br-81 with bromine-gold 3012900500009 ratio of 156 to 1 were used.Transmission of cadmium for3012900500010 resonance neutrons deduced of 20.4 millig/cm2 sample 3012900500011 measurements.Cadmium ratio measurements used to 3012900500012 evaluate self shielding. Final result includes a -9% 3012900500013 spectrum correction. 3012900500014 MONITOR 2(35-BR-81(N,G)35-BR-82,,SIG) 3012900500015 at energy E0= 0.025 eV 3012900500016 COMMENT Only 2.2% of the desintegrations by-pass the ground 3012900500017 state,so this S0 value should be very closed to 3012900500018 that for total capture. 3012900500019 Measured S0 value was S0=24.3+-0.4 3012900500020 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900500021 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900500022 EN-NRM2 added. 3012900500023 ENDBIB 21 0 3012900500024 COMMON 6 3 3012900500025 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900500026 EV EV EV EV B B 3012900500027 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 3.1000E+00 4.0000E-013012900500028 ENDCOMMON 3 0 3012900500029 DATA 4 1 3012900500030 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900500031 NO-DIM NO-DIM B B 3012900500032 2.1500E+01 4.0000E-01 6.7000E+01 1.0000E+01 3012900500033 ENDDATA 3 0 3012900500034 ENDSUBENT 33 0 3012900599999 SUBENT 30129006 20160406 31733012900600001 BIB 5 14 3012900600002 REACTION 1((53-I-127(N,G)53-I-128,,RI,,RNV)// 3012900600003 (53-I-127(N,G)53-I-128,,SIG)) 3012900600004 2(53-I-127(N,G)53-I-128,,RI,,RNV) 3012900600005 Reduced resonance integral and ratio to thermal sigma 3012900600006 METHOD Measurements made relative to indium by comparing the 3012900600007 442-keV gamma-ray of 25 min I-128 with the 416-keV 3012900600008 gamma-ray of 54 min In-116 3012900600009 Result includes a - 4% spectrum correction 3012900600010 MONITOR 2(53-I-127(N,G)53-I-128,,SIG) 3012900600011 at energy E0= 0.025 eV 3012900600012 COMMENT Measured S0 value was S0=27.8+-0.5 3012900600013 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900600014 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900600015 EN-NRM2 added. 3012900600016 ENDBIB 14 0 3012900600017 COMMON 6 3 3012900600018 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900600019 EV EV EV EV B B 3012900600020 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 6.2000E+00 2.0000E-013012900600021 ENDCOMMON 3 0 3012900600022 DATA 4 1 3012900600023 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900600024 NO-DIM NO-DIM B B 3012900600025 2.4600E+01 4.0000E-01 1.5300E+02 6.0000E+00 3012900600026 ENDDATA 3 0 3012900600027 ENDSUBENT 26 0 3012900699999 SUBENT 30129007 20160406 31733012900700001 BIB 5 17 3012900700002 REACTION 1((52-TE-130(N,G)52-TE-131,,RI,,RNV)// 3012900700003 (52-TE-130(N,G)52-TE-131,,SIG)) 3012900700004 2(52-TE-130(N,G)52-TE-131,,RI,,RNV) 3012900700005 Reduced resonance integral and ratio to thermal sigma 3012900700006 METHOD The 150-keV gamma-ray of Te-131 was measured relative 3012900700007 to the 137-keV gamma ray of 54 min In-116. 3012900700008 Self-shielding in both tellurium and indium negligible.3012900700009 no spectrum correction. 3012900700010 Isomeric yield is the same for resonance and thermal 3012900700011 neutron capture,so that value obtained also applies for3012900700012 the total capture cross section 3012900700013 MONITOR 2(52-TE-130(N,G)52-TE-131,,SIG) 3012900700014 at energy E0= 0.025 eV 3012900700015 COMMENT Measured S0 value was S0=2.10+-0.07 3012900700016 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900700017 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900700018 EN-NRM2 added. 3012900700019 ENDBIB 17 0 3012900700020 COMMON 6 3 3012900700021 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900700022 EV EV EV EV B B 3012900700023 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 2.6000E-01 8.0000E-023012900700024 ENDCOMMON 3 0 3012900700025 DATA 4 1 3012900700026 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900700027 NO-DIM NO-DIM B B 3012900700028 1.8600E+00 6.0000E-02 4.8000E-01 1.4000E-01 3012900700029 ENDDATA 3 0 3012900700030 ENDSUBENT 29 0 3012900799999 SUBENT 30129008 20160406 31733012900800001 BIB 6 17 3012900800002 REACTION 1((56-BA-138(N,G)56-BA-139,,RI,,RNV)// 3012900800003 (56-BA-138(N,G)56-BA-139,,SIG)) 3012900800004 2(56-BA-138(N,G)56-BA-139,,RI,,RNV) 3012900800005 Reduced resonance integral and ratio to thermal sigma 3012900800006 DECAY-DATA (56-BA-139,85.MIN) 3012900800007 METHOD Cadmium ratio for capture in Ba-138 leading to 85-min 3012900800008 Ba-139 was measured relative to 54-min in-116. Relative3012900800009 intensities of the 166-keV gamma-ray of Ba-139 and the 3012900800010 137-keV gamma ray of in-116 were measured over two 3012900800011 Ba-139 half lives. 3012900800012 No neutron spectrum correction was applied 3012900800013 MONITOR 2(56-BA-138(N,G)56-BA-139,,SIG) 3012900800014 at energy E0= 0.025 eV 3012900800015 COMMENT Measured S0 value was S0= 0.649+-0.004 3012900800016 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900800017 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900800018 EN-NRM2 added. 3012900800019 ENDBIB 17 0 3012900800020 COMMON 6 3 3012900800021 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900800022 EV EV EV EV B B 3012900800023 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 3.5000E-01 1.5000E-013012900800024 ENDCOMMON 3 0 3012900800025 DATA 4 1 3012900800026 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900800027 NO-DIM NO-DIM B B 3012900800028 5.7500E-01 4.0000E-03 2.0000E-01 9.0000E-02 3012900800029 ENDDATA 3 0 3012900800030 ENDSUBENT 29 0 3012900899999 SUBENT 30129009 20160406 31733012900900001 BIB 6 14 3012900900002 REACTION 1((58-CE-140(N,G)58-CE-141,,RI,,RNV)// 3012900900003 (58-CE-140(N,G)58-CE-141,,SIG)) 3012900900004 2(58-CE-140(N,G)58-CE-141,,RI,,RNV) 3012900900005 Reduced resonance integral and ratio to thermal sigma 3012900900006 DECAY-DATA (58-CE-141,32.5D) 3012900900007 METHOD The 145.6-keV gamma-ray of 32.5-Day Ce-141 was measured3012900900008 relative to the 412-keV gold gamma ray 3012900900009 No neutron spectrum correction applied 3012900900010 MONITOR 2(58-CE-140(N,G)58-CE-141,,SIG) 3012900900011 at energy E0= 0.025 eV 3012900900012 COMMENT Measured S0 value was 0.476+-0.003 3012900900013 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012900900014 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012900900015 EN-NRM2 added. 3012900900016 ENDBIB 14 0 3012900900017 COMMON 6 3 3012900900018 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012900900019 EV EV EV EV B B 3012900900020 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 6.0000E-01 6.0000E-023012900900021 ENDCOMMON 3 0 3012900900022 DATA 4 1 3012900900023 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012900900024 NO-DIM NO-DIM B B 3012900900025 4.2200E-01 3.0000E-03 2.5000E-01 3.0000E-02 3012900900026 ENDDATA 3 0 3012900900027 ENDSUBENT 26 0 3012900999999 SUBENT 30129010 20160406 31733012901000001 BIB 5 13 3012901000002 REACTION 1((58-CE-142(N,G)58-CE-143,,RI,,RNV)// 3012901000003 (58-CE-142(N,G)58-CE-143,,SIG)) 3012901000004 2(58-CE-142(N,G)58-CE-143,,RI,,RNV) 3012901000005 Reduced resonance integral and ratio to thermal sigma 3012901000006 METHOD The 294-keV gamma-ray of 33-hour Ce-143 was measured 3012901000007 relative to the 412-keV gold gamma ray 3012901000008 No neutron spectrum correction applied 3012901000009 MONITOR 2(58-CE-142(N,G)58-CE-143,,SIG) 3012901000010 at energy E0= 0.025 eV 3012901000011 COMMENT Measured S0 value was S0 = 0.865+-0.005 3012901000012 HISTORY (20160209A) VS. SF8=RNV added to resonance integrals 3012901000013 EN-MIN,EN-NRM->EN-MIN-NM1,EN-DM1 and moved from 001 3012901000014 EN-NRM2 added. 3012901000015 ENDBIB 13 0 3012901000016 COMMON 6 3 3012901000017 EN-MIN-NM 1EN-DN 1EN-MIN 2EN-NRM 2MONIT 2MONIT-ERR 23012901000018 EV EV EV EV B B 3012901000019 6.0000E-01 2.5300E-02 6.0000E-01 0.0253 9.5000E-01 5.0000E-023012901000020 ENDCOMMON 3 0 3012901000021 DATA 4 1 3012901000022 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3012901000023 NO-DIM NO-DIM B B 3012901000024 7.6700E-01 4.0000E-03 7.3000E-01 4.0000E-02 3012901000025 ENDDATA 3 0 3012901000026 ENDSUBENT 25 0 3012901099999 SUBENT 30129011 20160406 31733012901100001 BIB 5 12 3012901100002 REACTION ((34-SE-80(N,G)34-SE-81-M,,RI,,RNV/FCT)// 3012901100003 (34-SE-80(N,G)34-SE-81-M,,SIG)) 3012901100004 S0 value,that is 2/sqrt(Pi) times the ratio of reduced 3012901100005 resonance integral to thermal absorption cross section 3012901100006 for the 62 minutes isomeric state 3012901100007 DECAY-DATA (34-SE-81-M,62.MIN) 3012901100008 METHOD Ratio obtained by measuring the 103 keV gamma ray from 3012901100009 Se-81(62 minutes) relative to the 136-keV gamma ray 3012901100010 from Se-75 3012901100011 STATUS (TABLE) Taxt p.2478 of Can. J. Phys. 46(1968)2478 3012901100012 HISTORY (20160209A) VS. SF8=RNV/MSC, STATUS added. 3012901100013 EN-MIN-NM, EN-DN moved from 001. 3012901100014 ENDBIB 12 0 3012901100015 NOCOMMON 0 0 3012901100016 DATA 4 1 3012901100017 EN-MIN-NM EN-DN DATA DATA-ERR 3012901100018 EV EV NO-DIM NO-DIM 3012901100019 6.0000E-01 2.5300E-02 3.8700E+00 2.2000E-02 3012901100020 ENDDATA 3 0 3012901100021 ENDSUBENT 20 0 3012901199999 ENDENTRY 11 0 3012999999999