ENTRY 14351 20121221 13871435100000001 SUBENT 14351001 20121221 13871435100100001 BIB 11 33 1435100100002 TITLE Cross section measurements at neutron energies 71 and 1435100100003 112 MeV and energy integrated cross section 1435100100004 measurements (0.1 < En < 750 MeV) for the neutron 1435100100005 induced reactions O(n,x)10Be, Si(n,x)10Be, and 1435100100006 Si(n,x)26Al 1435100100007 AUTHOR (M.W.Caffee,K.Nishiizumi,J.M.Sisterson,J.Ullmann, 1435100100008 K.C.Welten) 1435100100009 INSTITUTE (1USAPUR,1USAMGH,1USALAS,1USAUCX) 1435100100010 REFERENCE (J,NIM/B,294,479,2013) 1435100100011 MONIT-REF (14010001,J.M.Sisterson+,J,NIM/B,234,419,2005) 1435100100012 Monitor reaction cross section data at Los Alamos 1435100100013 energies 0.1-750 MeV 1435100100014 (14056001,J.M.Sisterson+,J,NIM/B,240,617,2005) 1435100100015 Monitor reaction cross section data at 71 and 112 MeV 1435100100016 FACILITY (LINAC,1USALAS) Energy integrated cross sections were 1435100100017 measured at the Los Alamos Neutron Science Center, 1435100100018 Los Alamos National Laboratory New Mexico using 1435100100019 white neutron beams 1435100100020 (CYCLO,3SAFITH) Measurements with quasi-monoenergetic 1435100100021 neutrons were performed at iThemba LABS cyclotron, 1435100100022 Somerset West, South Africa 1435100100023 DETECTOR (HPGE) Short lived nuclides were measured using high 1435100100024 purity Ge detectors. 1435100100025 METHOD (ACTIV) 1435100100026 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 1435100100027 (28-NI-58(N,X)27-CO-57,,SIG) 1435100100028 (29-CU-63(N,X)27-CO-58,,SIG) 1435100100029 (79-AU-197(N,2N)79-AU-196,,SIG) 1435100100030 HISTORY (20121221C) Compiled by S.H. 1435100100031 ERR-ANALYS (ERR-1) 1 sigma uncertainty in AMS measurement covering1435100100032 samples, blanks and standards. 1435100100033 (ERR-SYS,2.0,3.0) Systematic uncertainty in AMS 1435100100034 measurement not included in ERR-1 1435100100035 ENDBIB 33 0 1435100100036 NOCOMMON 0 0 1435100100037 ENDSUBENT 36 0 1435100199999 SUBENT 14351002 20121221 13871435100200001 BIB 5 12 1435100200002 REACTION (8-O-16(N,X)4-BE-10,,SIG) 1435100200003 STATUS (TABLE) Data taken from tab. 3 of the reference 1435100200004 SAMPLE SiO2 sample with 99.9% purity and dimensions 5 x 5 cm2 1435100200005 INC-SOURCE (P-BE) Irradiations performed at 0 deg and 16 deg. At 1435100200006 0 deg there are two components in neutron spectrum - 1435100200007 a high energy peak and a low energy tail. The 1435100200008 spectrum at 16 deg has only low energy tail, similar 1435100200009 to the tail at 0 deg. 1435100200010 METHOD Irradiations at iTL were made simultaneously at 0 deg 1435100200011 and 16 deg. Cross section at specific energy was 1435100200012 obtained by subtracting the yield measured at 16 deg 1435100200013 (after normalization) from the yield measured at 0deg.1435100200014 ENDBIB 12 0 1435100200015 NOCOMMON 0 0 1435100200016 DATA 3 2 1435100200017 EN DATA ERR-1 1435100200018 MEV MB MB 1435100200019 70.7 1.52 0.15 1435100200020 110.8 1.68 0.25 1435100200021 ENDDATA 4 0 1435100200022 ENDSUBENT 21 0 1435100299999 SUBENT 14351003 20121221 13871435100300001 BIB 5 13 1435100300002 REACTION (14-SI-0(N,X)4-BE-10,,SIG) 1435100300003 STATUS (TABLE) Data taken from tab. 3 of the reference 1435100300004 SAMPLE Si samples with 99.999% purity and 1.5 cm or 5 cm 1435100300005 in diameter 1435100300006 INC-SOURCE (P-BE) Irradiations performed at 0 deg and 16 deg. At 1435100300007 0 deg there are two components in neutron spectrum - 1435100300008 a high energy peak and a low energy tail. The 1435100300009 spectrum at 16 deg has only low energy tail, similar 1435100300010 to the tail at 0 deg. 1435100300011 METHOD Irradiations at iTL were made simultaneously at 0 deg 1435100300012 and 16 deg. Cross section at specific energy was 1435100300013 obtained by subtracting the yield measured at 16 deg 1435100300014 (after normalization) from the yield measured at 0 deg1435100300015 ENDBIB 13 0 1435100300016 NOCOMMON 0 0 1435100300017 DATA 3 1 1435100300018 EN DATA ERR-1 1435100300019 MEV MB MB 1435100300020 112.0 0.08 0.03 1435100300021 ENDDATA 3 0 1435100300022 ENDSUBENT 21 0 1435100399999 SUBENT 14351004 20121221 13871435100400001 BIB 6 16 1435100400002 REACTION (14-SI-0(N,X)13-AL-26,,SIG) 1435100400003 STATUS (TABLE) Data taken from tab. 3 of the reference 1435100400004 SAMPLE Si samples with 99.999% purity and 1.5 cm or 5 cm 1435100400005 in diameter 1435100400006 SiO2 sample with 99.9% purity and dimensions 5 x 5 cm2 1435100400007 FLAG (1.) Si sample 1435100400008 (2.) SiO2 sample 1435100400009 INC-SOURCE (P-BE) Irradiations performed at 0 deg and 16 deg. At 1435100400010 0 deg there are two components in neutron spectrum - 1435100400011 a high energy peak and a low energy tail. The 1435100400012 spectrum at 16 deg has only low energy tail, similar 1435100400013 to the tail at 0 deg. 1435100400014 METHOD Irradiations at iTL were made simultaneously at 0 deg 1435100400015 and 16 deg. Cross section at specific energy was 1435100400016 obtained by subtracting the yield measured at 16 deg 1435100400017 (after normalization) from the yield measured at 0 deg1435100400018 ENDBIB 16 0 1435100400019 NOCOMMON 0 0 1435100400020 DATA 4 3 1435100400021 EN DATA ERR-1 FLAG 1435100400022 MEV MB MB NO-DIM 1435100400023 70.7 14.7 2.4 2. 1435100400024 110.8 19.7 2.6 2. 1435100400025 112.0 26.8 3.4 1. 1435100400026 ENDDATA 5 0 1435100400027 ENDSUBENT 26 0 1435100499999 SUBENT 14351005 20121221 13871435100500001 BIB 5 10 1435100500002 REACTION (8-O-16(N,X)4-BE-10,,SIG,,AV) 1435100500003 STATUS (TABLE) Data taken from tab. 3 of the reference 1435100500004 SAMPLE SiO2 sample with 99.9% purity and dimensions 5 x 5 cm2 1435100500005 INC-SOURCE (SPALL) Neutrons were produced by spallation reaction 1435100500006 using 800 MeV protons from linear accelerator 1435100500007 impinging on a tungsten target. Polyethylene filter 1435100500008 of different thickness was inserted after spallation 1435100500009 target to filter low energy neutrons 1435100500010 FLAG (1.) 5.1 cm polyethylene filter 1435100500011 (2.) 15.2 cm polyethylene filter 1435100500012 ENDBIB 10 0 1435100500013 COMMON 2 3 1435100500014 EN-MIN EN-MAX 1435100500015 MEV MEV 1435100500016 0.1 750.0 1435100500017 ENDCOMMON 3 0 1435100500018 DATA 3 2 1435100500019 DATA ERR-1 FLAG 1435100500020 MB MB NO-DIM 1435100500021 1.57 0.17 1. 1435100500022 1.54 0.17 2. 1435100500023 ENDDATA 4 0 1435100500024 ENDSUBENT 23 0 1435100599999 SUBENT 14351006 20121221 13871435100600001 BIB 4 9 1435100600002 REACTION (14-SI-0(N,X)4-BE-10,,SIG,,AV) 1435100600003 STATUS (TABLE) Data taken from tab. 3 of the reference 1435100600004 SAMPLE Si samples with 99.999% purity and 1.5 cm or 5 cm 1435100600005 in diameter 1435100600006 INC-SOURCE (SPALL) Neutrons were produced by spallation reaction 1435100600007 using 800 MeV protons from linear accelerator 1435100600008 impinging on a tungsten target. Polyethylene filter 1435100600009 of different thickness was inserted after spallation 1435100600010 target to filter low energy neutrons 1435100600011 ENDBIB 9 0 1435100600012 NOCOMMON 0 0 1435100600013 DATA 4 1 1435100600014 EN-MIN EN-MAX DATA ERR-1 1435100600015 MEV MEV MB MB 1435100600016 0.1 750.0 0.21 0.03 1435100600017 ENDDATA 3 0 1435100600018 ENDSUBENT 17 0 1435100699999 SUBENT 14351007 20121221 13871435100700001 BIB 5 13 1435100700002 REACTION (14-SI-0(N,X)13-AL-26,,SIG,,AV) 1435100700003 STATUS (TABLE) Data taken from tab. 3 of the reference 1435100700004 SAMPLE Si samples with 99.999% purity and 1.5 cm or 5 cm 1435100700005 in diameter 1435100700006 SiO2 sample with 99.9% purity and dimensions 5 x 5 cm2 1435100700007 INC-SOURCE (SPALL) Neutrons were produced by spallation reaction 1435100700008 using 800 MeV protons from linear accelerator 1435100700009 impinging on a tungsten target. Polyethylene filter 1435100700010 of different thickness was inserted after spallation 1435100700011 target to filter low energy neutrons 1435100700012 FLAG (1.) Si sample, 2.5 cm polyethylene filter 1435100700013 (2.) SiO2 sample, 5.1 cm polyethylene filter 1435100700014 (3.) SiO2 sample, 15.2 cm polyethylene filter 1435100700015 ENDBIB 13 0 1435100700016 COMMON 2 3 1435100700017 EN-MIN EN-MAX 1435100700018 MEV MEV 1435100700019 0.1 750.0 1435100700020 ENDCOMMON 3 0 1435100700021 DATA 3 3 1435100700022 DATA ERR-1 FLAG 1435100700023 MB MB NO-DIM 1435100700024 14.7 1.6 1. 1435100700025 15.1 1.5 2. 1435100700026 14.0 1.4 3. 1435100700027 ENDDATA 5 0 1435100700028 ENDSUBENT 27 0 1435100799999 ENDENTRY 7 0 1435199999999