ENTRY 23308 20191114 22832330800000001 SUBENT 23308001 20191114 22832330800100001 BIB 11 34 2330800100002 AUTHOR (P.Kavrigin, E.Griesmayer, F.Belloni, A.J.M.Plompen, 2330800100003 P.Schillebeeckx, C.Weiss) 2330800100004 TITLE 13C(n,alpha0)10Be cross section measurement with sCVD 2330800100005 diamond detector. 2330800100006 REFERENCE (J,EPJ/A,52,179,2016) 2330800100007 #doi:10.1140/epja/i2016-16179-9 2330800100008 (J,EPJ/CS,146,11036,2017) same data publ. 2330800100009 INSTITUTE (2ZZZGEL) F.Belloni, A.J.M.Plompen, P.Schillebeeckx. 2330800100010 (2ZZZCER) C.Weiss 2330800100011 (2AUSAUS) CIVIDEC Instrumentation, Schottengasse 2330800100012 3A/1/41, 1010 Vienna, Austria. 2330800100013 P.Kavrigin, E.Griesmayer. 2330800100014 FACILITY (VDG,2ZZZGEL) 7MV Van de Graaff 2330800100015 INC-SOURCE (D-T) 2 MEV deuteron beam on T/Ti target. Ti layer 2330800100016 areal density 2157 mug/cm2, T/Ti atomic ratio 1.0 . 2330800100017 INC-SPECT Quasi-monoenergetic neutron beam. 2330800100018 The incident neutron spectra were determined using 2330800100019 the TARGET code [12]. 2330800100020 14.3 MeV ( 182 keV FWHM) at 98 deg. 2330800100021 17.0 MeV (379 keV FWHM) at 45 deg. 2330800100022 SAMPLE Diamond detector was served also as carbon sample. 2330800100023 Isotopic composition: 2330800100024 C-12 - 98.892+-0.003 %, C-13 - 1.108+-0.003 % . 2330800100025 DETECTOR A CIVIDEC B1 Single-Crystal Diamond Detector (sCVD) 2330800100026 of thickness of 500 mum, with electrodes of 4mm x 4mm 2330800100027 area. Installed at 50mm distance from the target. 2330800100028 Measurements were performed at two angles 98 deg and 2330800100029 45 deg relative to the deuteron beam direction. 2330800100030 Coupled to a CIVIDEC C2 Broadband Amplifier with 2 GHz 2330800100031 analogue bandwidth, 40 dB gain, an equivalent input 2330800100032 current noise of 0.4 muA. 2330800100033 ANALYSIS Pulse shape analysis. 2330800100034 HISTORY (20160825C) M.M. 2330800100035 (20191114U) SD: Ref. EPJ/CS,146,11036,2017 added. 2330800100036 ENDBIB 34 0 2330800100037 NOCOMMON 0 0 2330800100038 ENDSUBENT 37 0 2330800199999 SUBENT 23308002 20160825 22542330800200001 BIB 4 29 2330800200002 REACTION ((6-C-13(N,A)4-BE-10,PAR,SIG)/ 2330800200003 (6-C-12(N,A)4-BE-9,PAR,SIG)) 2330800200004 ANALYSIS CS ratio was defined as 2330800200005 SIG13/SIG12= (I13/I12)*(N12/N13), where 2330800200006 I13 - C-13 net peak area, 2330800200007 I12 - C-12 net peak area, 2330800200008 N12 - fraction of C-12 in the diamond, 2330800200009 N13 - fraction of C-13 in the diamond. 2330800200010 Alpha-0 energy for C-12(n,alpha-0) - 11.3 MeV 2330800200011 for C-13(n,alpha-0) - 13.2 MeV 2330800200012 at En= 17.0meV 2330800200013 8.6 MeV and 10.5 MeV for 14.3 MeV . 2330800200014 ERR-ANALYS (ERR-T) Total uncertainty ( < 11.%) includes : 2330800200015 (ERR-1) the uncertainty of the abundance of 13C in 2330800200016 diamond (N13/N12) - 0.3% ; 2330800200017 Uncertainty of the net peak area ratio 2330800200018 (I13/I12) which includes: 2330800200019 (ERR-S) the statistical uncertainty dominated by the 2330800200020 13C(n,alpha0)10Be statistics, 5.9% at 14.3MeV with 2330800200021 291 counts, 4.0% at 17.0MeV with 635 counts; 2330800200022 (ERR-2) the uncertainty introduced by the analysis 2330800200023 method, dominated by the pulse width selection, 2330800200024 estimated as a ratio of the 0.1 ns sampling period of 2330800200025 the data acquisition system to the smallest recorded 2330800200026 pulse baseline width of 1.2 ns, - 8.3%; 2330800200027 the energy resolution of the detector system which 2330800200028 is 168 keV FWHM, that is 1.6% in the measurement at 2330800200029 14.3MeV and 1.3% in the measurement at 17.0MeV. 2330800200030 STATUS (TABLE) Table 3 of J,EPJ/A,52,179,2016 2330800200031 ENDBIB 29 0 2330800200032 COMMON 3 3 2330800200033 ERR-1 ERR-2 E-LVL 2330800200034 PER-CENT PER-CENT MEV 2330800200035 0.3 8.3 0. 2330800200036 ENDCOMMON 3 0 2330800200037 DATA 6 2 2330800200038 EN EN-ERR EN-RSL-FW DATA ERR-T ERR-S 2330800200039 MEV MEV MEV NO-DIM NO-DIM PER-CENT 2330800200040 14.3 0.1 0.182 0.15 0.01 5.9 2330800200041 17.0 0.2 0.379 0.17 0.01 4.0 2330800200042 ENDDATA 4 0 2330800200043 ENDSUBENT 42 0 2330800299999 SUBENT 23308003 20160825 22542330800300001 BIB 7 27 2330800300002 REACTION (6-C-13(N,A)4-BE-10,PAR,SIG) 2330800300003 MONITOR (6-C-12(N,A)4-BE-9,PAR,SIG) 2330800300004 MONIT-REF (,Z.G.Ge+,J,KPS,59,1052,2011) 2330800300005 (,Z.G.Ge+,3,CENDL-3.1,,2009) 2330800300006 EN-SEC (E,A) Alpha-0 energy for C-12(n,alpha-0) - 11.3 MeV 2330800300007 for C-13(n,alpha-0) - 13.2 MeV 2330800300008 at En= 17.0meV 2330800300009 8.6 MeV and 10.5 MeV for 14.3 MeV . 2330800300010 ERR-ANALYS (ERR-T) Total uncertainty ( < 11.%) includes : 2330800300011 (ERR-1) the uncertainty of the abundance of 13C in 2330800300012 diamond (N13/N12) - 0.3% ; 2330800300013 Uncertainty of the net peak area ratio 2330800300014 (I13/I12) which includes: 2330800300015 (ERR-S) the statistical uncertainty dominated by the 2330800300016 13C(n,alpha0)10Be statistics, 5.9% at 14.3MeV with 2330800300017 291 counts, 4.0% at 17.0MeV with 635 counts; 2330800300018 (ERR-2) the uncertainty introduced by the analysis 2330800300019 method, dominated by the pulse width selection, 2330800300020 estimated as a ratio of the 0.1 ns sampling period of 2330800300021 the data acquisition system to the smallest recorded 2330800300022 pulse baseline width of 1.2 ns, - 8.3%; 2330800300023 the energy resolution of the detector system which 2330800300024 is 168 keV FWHM, that is 1.6% in the measurement at 2330800300025 14.3MeV and 1.3% in the measurement at 17.0MeV. 2330800300026 REL-REF (A,23142003,M.Pillon+,S,AIP-1412,121,2011) 2330800300027 (D,31531003,F.Sudbrock+,J,RCA,88,829,2000) 2330800300028 STATUS (TABLE) Table 3 of J,EPJ/A,52,179,2016 2330800300029 ENDBIB 27 0 2330800300030 COMMON 4 3 2330800300031 ERR-1 ERR-2 E-LVL E-LVL-NRM 2330800300032 PER-CENT PER-CENT MEV MEV 2330800300033 0.3 8.3 0. 0. 2330800300034 ENDCOMMON 3 0 2330800300035 DATA 7 2 2330800300036 EN EN-ERR EN-RSL-FW DATA ERR-T MONIT 2330800300037 ERR-S 2330800300038 MEV MEV MEV MB MB MB 2330800300039 PER-CENT 2330800300040 14.3 0.1 0.182 10.4 1.1 71.6 2330800300041 5.9 2330800300042 17.0 0.2 0.379 7.1 0.7 42.8 2330800300043 4.0 2330800300044 ENDDATA 8 0 2330800300045 ENDSUBENT 44 0 2330800399999 ENDENTRY 3 0 2330899999999