ENTRY E1239 20121010 E071E123900000001 SUBENT E1239001 20121010 E071E123900100001 BIB 13 36 E123900100002 TITLE The 1H(11B,n)11C reaction as a practical low E123900100003 background monoenergetic neutron source in the 10 MeV E123900100004 region E123900100005 AUTHOR (S.Chiba, M.Mizumoto, K.Hasegawa, Y.Yamanouti, E123900100006 M.Sugimoto, Y.Watanabe, M.Drosg) E123900100007 INSTITUTE (2JPNJAE) E123900100008 (2JPNTOH) E123900100009 (2JPNKYU) E123900100010 (2AUSPVI) E123900100011 REFERENCE (J,NIM/A,281,(3),581,198909) E123900100012 PART-DET (N) E123900100013 INC-SOURCE - Beam intensity is 15 to 80 nA. E123900100014 - Charge of incident ion is 4+. E123900100015 - Ion source: Source of Negative Ions by Cesium E123900100016 Sputtering (SNICS-2) [E. Minehara, et al., JAERI-M E123900100017 88-181(1988)10] E123900100018 SAMPLE - Chemical-form of target is element. E123900100019 - Physical-form of target is gas. E123900100020 - Target-thickness: 0.21 MPa E123900100021 - Backing: Molybdenum foil for entrance window and E123900100022 gold plate for beam stopper E123900100023 - Backing-thickness: 5-micrometer thick for entrance E123900100024 window and 1.5-mm thick for beam stopper E123900100025 METHOD (TOF) E123900100026 FACILITY (VDGT,2JPNJAE) E123900100027 DETECTOR (SCIN) Used as neutron detector (NE213) E123900100028 ERR-ANALYS (ERR-T) Statistical uncertainty is negligible. E123900100029 (ERR-1) Uncertainty in detection efficiency (about E123900100030 10%) E123900100031 (ERR-2) Uncertainty in gas pressure (about 2%) E123900100032 (ERR-3,2.) Uncertainty in bias setting (>2%) (2<%) E123900100033 (ERR-4) Uncertainty in flight path length (about 3%) E123900100034 (ERR-5) Uncertainty in dead time correction (about 2%) E123900100035 STATUS (APRVD) Proofread by Satoshi Chiba (2005.06.08) E123900100036 HISTORY (19910605T) Converted from NRDF D1239 E123900100037 (20050606C) Sr + On. Recompiled with author's data E123900100038 ENDBIB 36 0 E123900100039 COMMON 5 3 E123900100040 ERR-T ERR-1 ERR-2 ERR-4 ERR-5 E123900100041 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT E123900100042 11. 10. 2. 3. 2. E123900100043 ENDCOMMON 3 0 E123900100044 ENDSUBENT 43 0 E123900199999 SUBENT E1239002 20121010 E071E123900200001 BIB 7 18 E123900200002 REACTION (1-H-1(5-B-11,N)6-C-11,PAR,DA) E123900200003 EN-SEC ANG is polar angle (lab.) between beam and neutron E123900200004 (E-LVL,6-C-11) E123900200005 MISC-COL (MISC1) Initial 11B beam energy E123900200006 (MISC2) Produced neutron energy E123900200007 COMMENT EN: Average 11B energy (Energy loss in molybdenum and E123900200008 hydrogen gas considered) E123900200009 REL-REF (A,,M.Drosg,J,NIM/A,254,(2),466,198702) E123900200010 Data deduced from (p,n) data in this reference E123900200011 generally agree with present work. E123900200012 (N,D0006002,M.Drosg,J,NSE,67,(2),190,197808) E123900200013 At 11 MeV, present work gives twice cross section of E123900200014 that of the D(d,n)3He reaction shown by this E123900200015 reference. E123900200016 STATUS (TABLE) Data (Fig.4, p585 in reference) received by E123900200017 e-mail from S.Chiba (2005.06.05) E123900200018 HISTORY (20120731A) VD. PAR added in SF5, E-LVL added (by E123900200019 Chiba 2011-10-06) E123900200020 ENDBIB 18 0 E123900200021 COMMON 2 3 E123900200022 ANG E-LVL E123900200023 ADEG MEV E123900200024 0. 0.0 E123900200025 ENDCOMMON 3 0 E123900200026 DATA 6 8 E123900200027 EN EN-ERR MISC1 MISC2 MISC2-ERR DATA E123900200028 MEV MEV MEV MEV MEV MB/SR E123900200029 42.561 0.804 50.0 7.118 0.8049 64.4E123900200030 44.783 0.777 52.0 7.891 0.8865 50.8E123900200031 49.209 0.716 56.0 9.384 1.1645 63.1E123900200032 51.403 0.688 58.0 10.109 1.0995 101.2E123900200033 53.573 0.668 60.0 10.820 1.2135 159.0E123900200034 54.665 0.654 61.0 11.175 1.1945 182.8E123900200035 55.739 0.647 62.0 11.523 1.2460 166.0E123900200036 57.894 0.627 64.0 12.219 1.4615 108.8E123900200037 ENDDATA 10 0 E123900200038 ENDSUBENT 37 0 E123900299999 SUBENT E1239003 20051025 E033E123900300001 BIB 4 9 E123900300002 REL-REF (A,,M.Drosg,J,NIM/A,254,(2),466,198702) E123900300003 Angular distribution deduced from (p,n) data in this E123900300004 reference are consistent with present work except at E123900300005 forward angles. E123900300006 REACTION (1-H-1(5-B-11,N)6-C-11,,DA) E123900300007 EN-SEC ANG is polar angle between beam and neutron in E123900300008 laboratory system E123900300009 STATUS (TABLE) Data (Fig.6, p587 in reference) received by E123900300010 e-mail from S.Chiba (2005.06.05) E123900300011 ENDBIB 9 0 E123900300012 COMMON 1 3 E123900300013 EN E123900300014 MEV E123900300015 50.0 E123900300016 ENDCOMMON 3 0 E123900300017 DATA 2 17 E123900300018 ANG DATA E123900300019 ADEG MB/SR E123900300020 0.0 64.1 E123900300021 5.0 63.7 E123900300022 10.0 62.2 E123900300023 15.0 66.3 E123900300024 20.0 69.8 E123900300025 21.0 79.2 E123900300026 22.0 81.4 E123900300027 23.0 82.9 E123900300028 24.0 90.5 E123900300029 25.0 94.2 E123900300030 26.0 93.9 E123900300031 27.0 83.6 E123900300032 28.0 181.2 E123900300033 29.0 150.2 E123900300034 30.0 101.0 E123900300035 31.0 48.4 E123900300036 32.0 0.0 E123900300037 ENDDATA 19 0 E123900300038 ENDSUBENT 37 0 E123900399999 SUBENT E1239004 20121010 E071E123900400001 BIB 5 11 E123900400002 REACTION (1-H-1(5-B-11,N)6-C-11,PAR,DA) E123900400003 EN-SEC ANG is polar angle (lab.) between beam and neutron E123900400004 (E-LVL,6-C-11) E123900400005 REL-REF (A,,M.Drosg,J,NIM/A,254,(2),466,198702) E123900400006 Angular distribution deduced from (p,n) data in this E123900400007 reference are consistent with present work except at E123900400008 forward angles. E123900400009 STATUS (TABLE) Data (Fig.7, p587 in reference) received by E123900400010 e-mail from S.Chiba (2005.06.05) E123900400011 HISTORY (20120731A) VD. PAR added in SF5, E-LVL added (by E123900400012 Chiba 2011-10-06) E123900400013 ENDBIB 11 0 E123900400014 COMMON 2 3 E123900400015 EN E-LVL E123900400016 MEV KEV E123900400017 61. 0.0 E123900400018 ENDCOMMON 3 0 E123900400019 DATA 2 16 E123900400020 ANG DATA E123900400021 ADEG MB/SR E123900400022 0.0 183.5 E123900400023 5.0 172.6 E123900400024 10.0 143.8 E123900400025 15.0 112.1 E123900400026 20.0 72.5 E123900400027 25.0 51.6 E123900400028 30.0 54.3 E123900400029 32.5 61.2 E123900400030 35.0 80.5 E123900400031 37.0 107.6 E123900400032 38.0 103.4 E123900400033 39.0 207.4 E123900400034 40.0 135.3 E123900400035 41.0 39.5 E123900400036 42.0 13.3 E123900400037 45.0 0.0 E123900400038 ENDDATA 18 0 E123900400039 ENDSUBENT 38 0 E123900499999 ENDENTRY 4 0 E123999999999