ENTRY 21990 20151213 22462199000000001 SUBENT 21990001 20151213 22462199000100001 BIB 17 72 2199000100002 INSTITUTE (2GERJUL) 2199000100003 REFERENCE (J,NP/A,435,43,198503) Main Reference. 2199000100004 AUTHOR (M.M.Rahman, S.M.Qaim) 2199000100005 TITLE Excitation functions of some neutron threshold 2199000100006 reactions on isotopes of molybdenum 2199000100007 FACILITY (CYCLO,2GERJUL) Variable energy compact cyclotron CV 282199000100008 INC-SOURCE (D-D) Quasi-monoenergetic neutron source. 2199000100009 SAMPLE Mo powder(99.98% pure) of natural isotopic composition2199000100010 was packed in polyethylene tubes of 1.1 cm diameter 2199000100011 and 1.25 or 2.5 cm length. Ni and Fe monitor foils. 2199000100012 METHOD (ACTIV) Irradiation for 4 to 6 h in each case. 2199000100013 (GSPEC) Gamma-ray spectrometry. 2199000100014 DETECTOR (GELI) 2199000100015 ANALYSIS The cross sections were calculated using the known 2199000100016 activation equation. 2199000100017 Neutron absorption factor was obtained from differences2199000100018 between calculated and exp. ratios of flux densities 2199000100019 in front and at back of sample. 2199000100020 MONITOR (28-NI-58(N,P)27-CO-58,,SIG) 2199000100021 (26-FE-56(N,P)25-MN-56,,SIG) 2199000100022 Ni and Fe monitor foils were placed in front as well 2199000100023 as at the back of the sample. 2199000100024 MONIT-REF (,B.A.Magurno,R,BNL-NCS-50446,1975) ENDF/B-IV, 2199000100025 dosimetry file. 2199000100026 REL-REF (R,,H.Lisken+,J,ND/A,11,569,1973) Data used for 2199000100027 relative neutron flux densities calculation. 2199000100028 (R,,C.M.Lederer+,B,LEDERER-7,,1978) Reference for decay2199000100029 data. 2199000100030 (R,21958001,S.M.Qaim+,J,NSE,88,143,1984)Error 2199000100031 analysis details. 2199000100032 STATUS (TABLE) Data taken from NP/A,435,43,1985. 2199000100033 CORRECTION -From the count rates of the activation products 2199000100034 obtained the contributions due to background neutrons,2199000100035 which were produced via the interaction of deuterons 2199000100036 with structural materials of the gas target as well as2199000100037 via the break-up of deuterons on deuterium gas, were 2199000100038 subtracted. 2199000100039 -Decay, gamma-ray intensity, efficiency of the detector2199000100040 counting geometry, self-absorption, coincidence 2199000100041 losses, pile-up of gamma-rays, etc. were corrected. 2199000100042 ERR-ANALYS (ERR-T) Include both statistical and systematic errors.2199000100043 Detailed description was taken from NSE 88(1984) 143. 2199000100044 (ERR-1) Uncertainty in sample weight 2199000100045 (ERR-2) Uncertainty in irradiation time 2199000100046 (ERR-3,1.,2.) Error in half-life-dependent effects 2199000100047 (ERR-4) Uncertainty in neutron source characteristics 2199000100048 (ERR-5) Uncertainty in irradiation geometry 2199000100049 (ERR-6,1.,15.) Uncertainty in correction for activity 2199000100050 induced by back-ground neutrons (gas in/out, breakup)2199000100051 (ERR-7) Uncertainty in correction for absorption and 2199000100052 scattering of neutrons in the sample 2199000100053 (ERR-8) Error in excitation function of monitor react. 2199000100054 (ERR-9,2.,20.) Uncertainty in determination of detector2199000100055 counts 2 to 20 (statistics, pileup, coincidence 2199000100056 losses, geometry) 2199000100057 (ERR-10,,2.) Uncertainty in absorption of gamma rays 2199000100058 in the sample 2199000100059 (ERR-11) Uncertainty in detector efficiency 2199000100060 (ERR-12,2.,3.) Uncertainty in chemical yield 2199000100061 (ERR-13,1.,5.) Uncertainty in decay data 2199000100062 The minimum overall error was about 12%; in some cases2199000100063 it was much higher due to low count rates (large 2199000100064 statistical errors) and/or due to high errors in 2199000100065 background neutron corrections for E > 6.0 MeV. 2199000100066 HISTORY (19860124C) 2199000100067 (20080829A) M.M. BIB information was added. 2199000100068 Free text was corrected to be "human-readable". 2199000100069 Dates were corrected for 4-digits year. 2199000100070 REACTION in Subents 002, 006 was corrected. 2199000100071 DATA-ERR was changed into ERR-T in according to text, 2199000100072 page 45. Subents 008, 009 were added. 2199000100073 (20151213A) SD: DECAY-DATA corrected in Subent 009. 2199000100074 ENDBIB 72 0 2199000100075 COMMON 7 6 2199000100076 ERR-1 ERR-2 ERR-4 ERR-5 ERR-7 ERR-8 2199000100077 ERR-11 2199000100078 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2199000100079 PER-CENT 2199000100080 0.1 0.1 3. 3. 4. 8. 2199000100081 3. 2199000100082 ENDCOMMON 6 0 2199000100083 ENDSUBENT 82 0 2199000199999 SUBENT 21990002 20080829 22022199000200001 BIB 4 9 2199000200002 REACTION (42-MO-92(N,P)41-NB-92-M,,SIG) 2199000200003 DECAY-DATA (41-NB-92-M,10.14D,DG,934.,0.992) 2199000200004 STATUS (TABLE) Table 1 of main reference . 2199000200005 HISTORY (19860124C) 2199000200006 (19860210E) 2199000200007 (19860417A) 2199000200008 (19860703E) 2199000200009 (20080829A) Nb-92 was changed into Nb-92-M in REACTION.2199000200010 Decay data for Zr-89g were moved in Subent 008. 2199000200011 ENDBIB 9 0 2199000200012 NOCOMMON 0 0 2199000200013 DATA 4 8 2199000200014 EN EN-RSL DATA ERR-T 2199000200015 KEV KEV MB MB 2199000200016 5.9110E+03 1.7800E+02 5.7100E+01 6.9000E+00 2199000200017 6.4740E+03 1.8100E+02 8.1700E+01 1.3800E+01 2199000200018 7.0320E+03 1.6300E+02 9.5100E+01 1.2100E+01 2199000200019 7.5490E+03 1.8500E+02 9.0000E+01 1.0600E+01 2199000200020 8.1320E+03 1.0900E+02 9.9000E+01 1.3000E+01 2199000200021 8.6320E+03 1.2300E+02 1.5350E+02 1.7600E+01 2199000200022 9.1530E+03 1.2300E+02 1.5430E+02 1.9600E+01 2199000200023 9.5770E+03 2.1500E+02 1.5800E+02 1.9000E+01 2199000200024 ENDDATA 10 0 2199000200025 ENDSUBENT 24 0 2199000299999 SUBENT 21990003 20080829 22022199000300001 BIB 5 17 2199000300002 REACTION (42-MO-95(N,P)41-NB-95,,SIG) 2199000300003 DECAY-DATA (41-NB-95-G,34.97D,DG,766.,0.9982) 2199000300004 ANALYSIS Measurements were performed after suitable decay time 2199000300005 so that the shorter-lived metastable state had 2199000300006 decayed out. This necessitated a small correction due 2199000300007 to the formation of some Nb-95 via the decay of Zr-95.2199000300008 Contribution of Mo-96[(n,d)+(n,np)+(n,pn)]Nb-95 was 2199000300009 considered above 7 MeV and was found to be <0.5 %. 2199000300010 Special analyzing of gamma-ray spectrum was made over 2199000300011 the energy region of 730 to 790 keV since four 2199000300012 radioactive products Zr-95, Nb-95, Nb-98m, Mo-99 with 2199000300013 very different counts rates had to be analyzed. 2199000300014 STATUS (TABLE) Table 1 of main reference . 2199000300015 HISTORY (19860124C) 2199000300016 (19860210E) 2199000300017 (19860417A) 2199000300018 (19860703E) 2199000300019 ENDBIB 17 0 2199000300020 NOCOMMON 0 0 2199000300021 DATA 4 8 2199000300022 EN EN-RSL DATA ERR-T 2199000300023 KEV KEV MB MB 2199000300024 5.9110E+03 1.7800E+02 1.2100E+00 1.5000E-01 2199000300025 6.4740E+03 1.8100E+02 1.8100E+00 2.3000E-01 2199000300026 7.0320E+03 1.6300E+02 3.4400E+00 4.3000E-01 2199000300027 7.5490E+03 1.8500E+02 4.3000E+00 5.5000E-01 2199000300028 8.1320E+03 1.0900E+02 6.5400E+00 8.4000E-01 2199000300029 8.6320E+03 1.2300E+02 1.0980E+01 1.4100E+00 2199000300030 9.1530E+03 1.2300E+02 1.4000E+01 1.7000E+00 2199000300031 9.5770E+03 2.1500E+02 1.6340E+01 1.9500E+00 2199000300032 ENDDATA 10 0 2199000300033 ENDSUBENT 32 0 2199000399999 SUBENT 21990004 20080829 22022199000400001 BIB 5 9 2199000400002 REACTION (42-MO-96(N,P)41-NB-96,,SIG) 2199000400003 DECAY-DATA (41-NB-96,23.35HR,DG,569.,0.5566) 2199000400004 ANALYSIS Contribution of Mo-97[(n,d)+(n,np)+(n,pn)]Nb-96 was 2199000400005 considered above 7 MeV and was found to be <0.5 %. 2199000400006 STATUS (TABLE) Table 1 of main reference . 2199000400007 HISTORY (19860124C) 2199000400008 (19860210E) 2199000400009 (19860417A) 2199000400010 (19860703E) 2199000400011 ENDBIB 9 0 2199000400012 NOCOMMON 0 0 2199000400013 DATA 4 8 2199000400014 EN EN-RSL DATA ERR-T 2199000400015 KEV KEV MB MB 2199000400016 5.9110E+03 1.7800E+02 5.0000E-02 9.0000E-03 2199000400017 6.4740E+03 1.8100E+02 9.0000E-02 2.0000E-02 2199000400018 7.0320E+03 1.6300E+02 2.1000E-01 2.5000E-02 2199000400019 7.5490E+03 1.8500E+02 3.9000E-01 5.0000E-02 2199000400020 8.1320E+03 1.0900E+02 9.9000E-01 1.8000E-01 2199000400021 8.6320E+03 1.2300E+02 1.7000E+00 3.3000E-01 2199000400022 9.1530E+03 1.2300E+02 2.5700E+00 4.0000E-01 2199000400023 9.5770E+03 2.1500E+02 3.3200E+00 4.6000E-01 2199000400024 ENDDATA 10 0 2199000400025 ENDSUBENT 24 0 2199000499999 SUBENT 21990005 20080829 22022199000500001 BIB 5 12 2199000500002 REACTION (42-MO-97(N,P)41-NB-97,,SIG) 2199000500003 DECAY-DATA (41-NB-97-G,72.1MIN,DG,658.,0.982) 2199000500004 ANALYSIS Measurements were performed after suitable decay time 2199000500005 so that the shorter-lived metastable state had 2199000500006 decayed out. 2199000500007 Contribution of Mo-98[(n,d)+(n,np)+(n,pn)]Nb-97 was 2199000500008 considered above 7 MeV and was found to be <0.5 %. 2199000500009 STATUS (TABLE) Table 1 of main reference . 2199000500010 HISTORY (19860124C) 2199000500011 (19860210E) 2199000500012 (19860417A) 2199000500013 (19860703E) 2199000500014 ENDBIB 12 0 2199000500015 NOCOMMON 0 0 2199000500016 DATA 4 8 2199000500017 EN EN-RSL DATA ERR-T 2199000500018 KEV KEV MB MB 2199000500019 5.9110E+03 1.7800E+02 5.0000E-02 9.0000E-03 2199000500020 6.4740E+03 1.8100E+02 1.3000E-01 5.0000E-02 2199000500021 7.0320E+03 1.6300E+02 2.5000E-01 4.0000E-02 2199000500022 7.5490E+03 1.8500E+02 4.8000E-01 6.0000E-02 2199000500023 8.1320E+03 1.0900E+02 6.8000E-01 8.0000E-02 2199000500024 8.6320E+03 1.2300E+02 1.7200E+00 1.5000E-01 2199000500025 9.1530E+03 1.2300E+02 2.0500E+00 2.8000E-01 2199000500026 9.5770E+03 2.1500E+02 2.7900E+00 4.2000E-01 2199000500027 ENDDATA 10 0 2199000500028 ENDSUBENT 27 0 2199000599999 SUBENT 21990006 20080829 22022199000600001 BIB 5 16 2199000600002 REACTION (42-MO-98(N,P)41-NB-98-M,,SIG) 2199000600003 DECAY-DATA (41-NB-98-M,51.3MIN,DG,787.,0.932) 2199000600004 ANALYSIS Special analyzing of gamma-ray spectrum was made over 2199000600005 the energy region of 730 to 790 keV since four 2199000600006 radioactive products Zr-95, Nb-95, Nb-98m, Mo-99 with 2199000600007 very different counts rates had to be analyzed. 2199000600008 STATUS (TABLE) Table 1 of main reference . 2199000600009 HISTORY (19860124C) 2199000600010 (19860210E) 2199000600011 (19860417A) 2199000600012 (19860703E) 2199000600013 (20080829A) Three energy points (6.474,7.032,7.549 keV 2199000600014 without DATA were deleted from DATA block. 2199000600015 Decay data for Zr-95 were moved in Subent 008. 2199000600016 Nb-98 was changed into Nb-98-M in REACTION. 2199000600017 Nb-98-G was changed into NB-98-M in DECAY-DATA. 2199000600018 ENDBIB 16 0 2199000600019 NOCOMMON 0 0 2199000600020 DATA 4 4 2199000600021 EN EN-RSL DATA ERR-T 2199000600022 KEV KEV MB MB 2199000600023 8.1320E+03 1.0900E+02 1.4000E-02 6.0000E-03 2199000600024 8.6320E+03 1.2300E+02 3.8000E-02 1.0000E-02 2199000600025 9.1530E+03 1.2300E+02 9.4000E-02 2.2000E-02 2199000600026 9.5770E+03 2.1500E+02 1.0200E-01 2.0000E-02 2199000600027 ENDDATA 6 0 2199000600028 ENDSUBENT 27 0 2199000699999 SUBENT 21990007 20080829 22022199000700001 BIB 5 11 2199000700002 REACTION (42-MO-100(N,2N)42-MO-99,,SIG) 2199000700003 DECAY-DATA (42-MO-99,66.HR,DG,739.,0.126) 2199000700004 ANALYSIS Special analyzing of gamma-ray spectrum was made over 2199000700005 the energy region of 730 to 790 keV since four 2199000700006 radioactive products Zr-95, Nb-95, Nb-98m, Mo-99 with 2199000700007 very different counts rates had to be analyzed. 2199000700008 STATUS (TABLE) Table 1 of main reference . 2199000700009 HISTORY (19860124C) 2199000700010 (19860210E) 2199000700011 (19860417A) 2199000700012 (19860703E) 2199000700013 ENDBIB 11 0 2199000700014 NOCOMMON 0 0 2199000700015 DATA 4 4 2199000700016 EN EN-RSL DATA ERR-T 2199000700017 KEV KEV MB MB 2199000700018 8.1320E+03 1.0900E+02 1.4000E+01 2.0000E+00 2199000700019 8.6320E+03 1.2300E+02 8.0000E+01 1.0000E+01 2199000700020 9.1530E+03 1.2300E+02 4.1800E+02 4.8000E+01 2199000700021 9.5770E+03 2.1500E+02 6.7900E+02 7.5000E+01 2199000700022 ENDDATA 6 0 2199000700023 ENDSUBENT 22 0 2199000799999 SUBENT 21990008 20080829 22022199000800001 BIB 5 7 2199000800002 REACTION (42-MO-92(N,A)40-ZR-89,,SIG) 2199000800003 DECAY-DATA (40-ZR-89-G,78.4HR,DG,909.,0.9901) 2199000800004 ANALYSIS Measurements were performed after suitable decay time 2199000800005 so that the shorter-lived metastable state had 2199000800006 decayed out. 2199000800007 STATUS (TABLE) Table 1 of main reference . 2199000800008 HISTORY (20080829C) M.M. 2199000800009 ENDBIB 7 0 2199000800010 NOCOMMON 0 0 2199000800011 DATA 4 8 2199000800012 EN EN-RSL DATA ERR-T 2199000800013 MEV MEV MB MB 2199000800014 5.911 0.178 0.94 0.11 2199000800015 6.474 0.181 1.89 0.40 2199000800016 7.032 0.163 2.67 0.33 2199000800017 7.549 0.185 3.70 0.44 2199000800018 8.132 0.109 5.0 0.63 2199000800019 8.632 0.123 8.3 1.0 2199000800020 9.153 0.123 10.1 1.10 2199000800021 9.577 0.215 14.0 2.9 2199000800022 ENDDATA 10 0 2199000800023 ENDSUBENT 22 0 2199000899999 SUBENT 21990009 20151213 22462199000900001 BIB 5 9 2199000900002 REACTION (42-MO-98(N,A)40-ZR-95,,SIG) 2199000900003 DECAY-DATA (40-ZR-95,63.98D,DG,757.,0.546) 2199000900004 ANALYSIS Special analyzing of gamma-ray spectrum was made over 2199000900005 the energy region of 730 to 790 keV since four 2199000900006 radioactive products Zr-95, Nb-95, Nb-98m, Mo-99 with 2199000900007 very different counts rates had to be analyzed. 2199000900008 STATUS (TABLE) Table 1 of NP/A,435,43,1985. 2199000900009 HISTORY (20080829C) M.M. 2199000900010 (20151213A) SD: Zr-85 -> Zr-95 in DECAY-DATA. 2199000900011 ENDBIB 9 0 2199000900012 NOCOMMON 0 0 2199000900013 DATA 4 7 2199000900014 EN EN-RSL DATA ERR-T 2199000900015 MEV MEV MB MB 2199000900016 6.474 0.181 0.16 0.07 2199000900017 7.032 0.163 0.42 0.16 2199000900018 7.549 0.185 0.55 0.23 2199000900019 8.132 0.109 1.03 0.46 2199000900020 8.632 0.123 1.0 0.39 2199000900021 9.153 0.123 1.17 0.33 2199000900022 9.577 0.215 1.65 0.30 2199000900023 ENDDATA 9 0 2199000900024 ENDSUBENT 23 0 2199000999999 ENDENTRY 9 0 2199099999999