ENTRY 31724 20130328 31593172400000001 SUBENT 31724001 20130328 31593172400100001 BIB 11 79 3172400100002 TITLE Cross section measurements of a few threshold 3172400100003 reactions induced by fast neutrons from an Am/Be 3172400100004 source: integral tests of differential neutron 3172400100005 reaction cross section data 3172400100006 AUTHOR (S.M.Qaim, Md.S.Uddin, S.M.Hossain, I.Spahn, M.R.Zaman)3172400100007 INSTITUTE (3BANRAJ,3BANSAV,2GERJUL) 3172400100008 REFERENCE (J,RCA,101,205,2013) 3172400100009 REL-REF (M,31696001,M.S.Uddin+,J,ARI,68,1656,2010) 3172400100010 gamma-ray counting and detector efficiency measurement3172400100011 performed at Savar, neutron source spectrum 3172400100012 (I,D4038001,B.Neumaier+,J,RCA,65,1,1994) 3172400100013 Low-level HpGE detector used at Juelich 3172400100014 INC-SOURCE (AM-BE) 105 GBq (Oct. 2008), 7.5e+6 neutrons/sec. 3172400100015 INC-SPECT Am/Be neutron source spectra used for comparison with 3172400100016 evaluated pointwise-cross sections in the article 3172400100017 (provided from Md.Shuza Uddin, 2013-04-08) 3172400100018 ---------------------- 3172400100019 Energy Spectrum 3172400100020 (MeV) (arb. unit) 3172400100021 ---------------------- 3172400100022 5.00E-01 2.51E+00 3172400100023 7.50E-01 1.26E+00 3172400100024 1.00E+00 8.18E-01 3172400100025 1.25E+00 3.46E-01 3172400100026 1.50E+00 1.12E-01 3172400100027 1.75E+00 7.84E-02 3172400100028 2.00E+00 5.18E-02 3172400100029 2.25E+00 4.52E-02 3172400100030 2.50E+00 5.83E-02 3172400100031 2.75E+00 8.44E-02 3172400100032 3.00E+00 9.59E-02 3172400100033 3.25E+00 9.14E-02 3172400100034 3.50E+00 8.60E-02 3172400100035 3.75E+00 8.00E-02 3172400100036 4.00E+00 7.57E-02 3172400100037 4.25E+00 7.59E-02 3172400100038 4.50E+00 8.02E-02 3172400100039 4.75E+00 8.04E-02 3172400100040 5.00E+00 7.89E-02 3172400100041 5.25E+00 6.54E-02 3172400100042 5.50E+00 5.48E-02 3172400100043 5.75E+00 5.07E-02 3172400100044 6.00E+00 4.91E-02 3172400100045 6.25E+00 4.99E-02 3172400100046 6.50E+00 4.98E-02 3172400100047 6.75E+00 4.48E-02 3172400100048 7.00E+00 4.74E-02 3172400100049 7.25E+00 4.80E-02 3172400100050 7.50E+00 4.78E-02 3172400100051 7.75E+00 4.50E-02 3172400100052 8.00E+00 4.13E-02 3172400100053 8.25E+00 3.08E-02 3172400100054 8.50E+00 2.65E-02 3172400100055 8.75E+00 2.19E-02 3172400100056 9.00E+00 1.70E-02 3172400100057 9.25E+00 2.17E-02 3172400100058 9.50E+00 2.33E-02 3172400100059 9.75E+00 2.23E-02 3172400100060 1.00E+01 2.13E-02 3172400100061 1.03E+01 1.66E-02 3172400100062 1.05E+01 1.56E-02 3172400100063 1.08E+01 6.04E-03 3172400100064 1.10E+01 1.26E-04 3172400100065 1.13E+01 1.26E-05 3172400100066 1.15E+01 1.26E-05 3172400100067 1.18E+01 2.27E-05 3172400100068 ---------------------- 3172400100069 DETECTOR (GEMUC) for 27Al(n,p)27Mg determination at Rajshahi 3172400100070 (HPGE) for other cross section determination 3172400100071 ERR-ANALYS (ERR-T) total uncertainty (8-16%) 3172400100072 (ERR-S,1.,14.) counting statistics (1-14%) 3172400100073 (ERR-1) peak area analysis (2%) 3172400100074 (ERR-2) efficiency of detector (5%) 3172400100075 (ERR-3) sample mass (0.01%) 3172400100076 (ERR-4,,1.) coincidence loss (<1%) 3172400100077 (ERR-5,,0.1) half-life of product (<0.1%) 3172400100078 (MONIT-ERR) monitor cross section (6%) 3172400100079 STATUS (TABLE) Table 3 of Radiochim.Acta 101(2013)205 3172400100080 HISTORY (20130328C) On 3172400100081 ENDBIB 79 0 3172400100082 COMMON 4 3 3172400100083 ERR-1 ERR-2 ERR-3 MONIT-ERR 3172400100084 PER-CENT PER-CENT PER-CENT PER-CENT 3172400100085 2. 5. 0.01 6. 3172400100086 ENDCOMMON 3 0 3172400100087 ENDSUBENT 86 0 3172400199999 SUBENT 31724002 20130328 31593172400200001 BIB 8 10 3172400200002 REACTION (12-MG-24(N,P)11-NA-24,,SIG,,SPA) 3172400200003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 3172400200004 MONIT-REF (,,3,IRDF-2002,,2005) 3172400200005 SAMPLE 835 mg of sponge in 2x2 cm polyethylene bag,>99.0% pure3172400200006 METHOD (ACTIV) 47 hrs irradiation 3172400200007 (GSPEC) Measured a few times over several days 3172400200008 DECAY-DATA (11-NA-24,15.0HR,DG,1368.0,1.000) 3172400200009 DECAY-MON (27-CO-58,70.86D,DG,811.0,0.990) 3172400200010 ERR-ANALYS (ERR-6,,2.) extended source correction (<2%) 3172400200011 (ERR-7,,0.3) gamma-ray intensity (<0.3%) 3172400200012 ENDBIB 10 0 3172400200013 NOCOMMON 0 0 3172400200014 DATA 4 1 3172400200015 EN-DUMMY DATA ERR-T MONIT 3172400200016 MEV MB MB MB 3172400200017 4.5 26. 3. 391. 3172400200018 ENDDATA 3 0 3172400200019 ENDSUBENT 18 0 3172400299999 SUBENT 31724003 20130328 31593172400300001 BIB 11 14 3172400300002 REACTION (13-AL-27(N,P)12-MG-27,,SIG,,SPA) 3172400300003 MONITOR (13-AL-27(N,A)11-NA-24,,SIG,,SPA) 3172400300004 SAMPLE 550 um thick, 2 cm diam. disc, 460 mg, 99.9% pure 3172400300005 METHOD (ACTIV) 24 hrs irradiation 3172400300006 ANALYSIS (DECAY) Measured periodically for two days at Rajshahi 3172400300007 DECAY-DATA (12-MG-27,9.5MIN,B-,,1.) E<1670 keV 3172400300008 DECAY-MON (11-NA-24,15.0HR,B-,,1.) E<1390 keV 3172400300009 COMMENT Syed M.Qaim (2013-04-04): 3172400300010 27Al(n,a)24Na cross section determined in this work 3172400300011 (9.7 mb) was adopted for determination of the 3172400300012 27Al(n,p)27Mg cross section. 3172400300013 CORRECTION Corrected for self-absorption of beta particles in Al 3172400300014 ERR-ANALYS (ERR-8,,3.) self-abs. correction in beta count (<3%) 3172400300015 STATUS (DEP,31724004) 27Al(n,a)24Na cross section given 3172400300016 ENDBIB 14 0 3172400300017 NOCOMMON 0 0 3172400300018 DATA 4 1 3172400300019 EN-DUMMY DATA ERR-T MONIT 3172400300020 MEV MB MB MB 3172400300021 4.5 30. 5. 9.7 3172400300022 ENDDATA 3 0 3172400300023 ENDSUBENT 22 0 3172400399999 SUBENT 31724004 20130328 31593172400400001 BIB 8 10 3172400400002 REACTION (13-AL-27(N,A)11-NA-24,,SIG,,SPA) 3172400400003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 3172400400004 MONIT-REF (,,3,IRDF-2002,,2005) 3172400400005 SAMPLE 550 um thick, 2 cm diam. disc, 460 mg, 99.9% pure 3172400400006 METHOD (ACTIV) 47 hrs irradiation 3172400400007 (GSPEC) Measured a few times over several days 3172400400008 DECAY-DATA (11-NA-24,15.0HR,DG,1368.0,1.000) 3172400400009 DECAY-MON (27-CO-58,70.86D,DG,811.0,0.990) 3172400400010 ERR-ANALYS (ERR-6,,2.) extended source correction (<2%) 3172400400011 (ERR-7,,0.3) gamma-ray intensity (<0.3%) 3172400400012 ENDBIB 10 0 3172400400013 NOCOMMON 0 0 3172400400014 DATA 4 1 3172400400015 EN-DUMMY DATA ERR-T MONIT 3172400400016 MEV MB MB MB 3172400400017 4.5 9.7 1.2 391. 3172400400018 ENDDATA 3 0 3172400400019 ENDSUBENT 18 0 3172400499999 SUBENT 31724005 20130328 31593172400500001 BIB 10 14 3172400500002 REACTION (42-MO-92(N,P)41-NB-92-M,,SIG,,SPA) 3172400500003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 3172400500004 MONIT-REF (,,3,IRDF-2002,,2005) 3172400500005 SAMPLE 250 um thick, 2 cm diam. disc, 835 mg, 99.9% pure 3172400500006 METHOD (ACTIV) ~400 hrs irradiation 3172400500007 (GSPEC) Measured at Juelich 3172400500008 DECAY-DATA (41-NB-92-M,10.15D,DG,934.5,0.990) 3172400500009 DECAY-MON (27-CO-58,70.86D,DG,811.0,0.990) 3172400500010 COMMENT By Author (p207): This reaction cross section was 3172400500011 remeasured to check the validity of the present 3172400500012 techniques. 3172400500013 CORRECTION Efficiency loss of 12.6% for extended sample 3172400500014 ERR-ANALYS (ERR-6,,2.) extended source correction (<2%) 3172400500015 (ERR-7,,0.3) gamma-ray intensity (<0.3%) 3172400500016 ENDBIB 14 0 3172400500017 NOCOMMON 0 0 3172400500018 DATA 4 1 3172400500019 EN-DUMMY DATA ERR-T MONIT 3172400500020 MEV MB MB MB 3172400500021 4.5 43. 4. 391. 3172400500022 ENDDATA 3 0 3172400500023 ENDSUBENT 22 0 3172400599999 SUBENT 31724006 20130328 31593172400600001 BIB 9 11 3172400600002 REACTION (42-MO-95(N,P)41-NB-95,,SIG,,SPA) 3172400600003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 3172400600004 MONIT-REF (,,3,IRDF-2002,,2005) 3172400600005 SAMPLE 250 um thick, 2 cm diam. disc, 835 mg, 99.9% pure 3172400600006 METHOD (ACTIV) ~400 hrs irradiation 3172400600007 (GSPEC) Measured at Juelich 3172400600008 DECAY-DATA (41-NB-95,34.97D,DG,765.8,0.998) 3172400600009 DECAY-MON (27-CO-58,70.86D,DG,811.0,0.990) 3172400600010 CORRECTION Efficiency loss of 12.6% for extended sample 3172400600011 ERR-ANALYS (ERR-6,,2.) extended source correction (<2%) 3172400600012 (ERR-7,,0.3) gamma-ray intensity (<0.3%) 3172400600013 ENDBIB 11 0 3172400600014 NOCOMMON 0 0 3172400600015 DATA 4 1 3172400600016 EN-DUMMY DATA ERR-T MONIT 3172400600017 MEV MB MB MB 3172400600018 4.5 1.9 0.3 391. 3172400600019 ENDDATA 3 0 3172400600020 ENDSUBENT 19 0 3172400699999 SUBENT 31724007 20130328 31593172400700001 BIB 9 11 3172400700002 REACTION (42-MO-98(N,A)40-ZR-95,,SIG,,SPA) 3172400700003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 3172400700004 MONIT-REF (,,3,IRDF-2002,,2005) 3172400700005 SAMPLE 250 um thick, 2 cm diam. disc, 835 mg, 99.9% pure 3172400700006 METHOD (ACTIV) ~400 hrs irradiation 3172400700007 (GSPEC) Measured at Juelich 3172400700008 DECAY-DATA (40-ZR-95,64.02D,DG,756.8,0.545) 3172400700009 DECAY-MON (27-CO-58,70.86D,DG,811.0,0.990) 3172400700010 CORRECTION Efficiency loss of 12.6% for extended sample 3172400700011 ERR-ANALYS (ERR-6,,2.) extended source correction (<2%) 3172400700012 (ERR-7,,0.3) gamma-ray intensity (<0.3%) 3172400700013 ENDBIB 11 0 3172400700014 NOCOMMON 0 0 3172400700015 DATA 3 1 3172400700016 EN-DUMMY DATA-MAX MONIT 3172400700017 MEV MB MB 3172400700018 4.5 0.5 391. 3172400700019 ENDDATA 3 0 3172400700020 ENDSUBENT 19 0 3172400799999 SUBENT 31724008 20130328 31593172400800001 BIB 9 11 3172400800002 REACTION (45-RH-103(N,P)44-RU-103,,SIG,,SPA) 3172400800003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 3172400800004 MONIT-REF (,,3,IRDF-2002,,2005) 3172400800005 SAMPLE 270 mg of RhCl3 on a 2cm diam. paper, 99.98% pure 3172400800006 METHOD (ACTIV) ~400 hrs irradiation 3172400800007 (GSPEC) Measured at Juelich 3172400800008 DECAY-DATA (44-RU-103,39.25D,DG,497.0,0.887) 3172400800009 DECAY-MON (27-CO-58,70.86D,DG,811.0,0.990) 3172400800010 CORRECTION Efficiency loss of 12.6% for extended sample 3172400800011 ERR-ANALYS (ERR-6,,2.) extended source correction (<2%) 3172400800012 (ERR-7,,0.3) gamma-ray intensity (<0.3%) 3172400800013 ENDBIB 11 0 3172400800014 NOCOMMON 0 0 3172400800015 DATA 3 1 3172400800016 EN-DUMMY DATA-MAX MONIT 3172400800017 MEV MB MB 3172400800018 4.5 0.3 391. 3172400800019 ENDDATA 3 0 3172400800020 ENDSUBENT 19 0 3172400899999 ENDENTRY 8 0 3172499999999