ENTRY 14356 20150414 14061435600000001 SUBENT 14356001 20150414 14061435600100001 BIB 9 26 1435600100002 TITLE Measurements of the neutron-proton and neutron-carbon 1435600100003 total cross section from 150 to 800 keV 1435600100004 AUTHOR (B.H.Daub,V.Henzl,M.A.Kovash,J.L.Matthews,Z.W.Miller, 1435600100005 K.Shoniyozov,H.Yang) 1435600100006 INSTITUTE (1USAMIT,1USAKTY) 1435600100007 REFERENCE (J,PR/C,87,014005,2013) 1435600100008 FACILITY (VDG,1USAKTY) Experiment performed using Van de 1435600100009 Graaff accelerator located at the University of 1435600100010 Kentucky. 1435600100011 DETECTOR (SCIN) Neutrons were detected by a 13.7cm diameter BC- 1435600100012 501A liquid scintillator, which was housed in a lead 1435600100013 and wax shield, with a 4.4cm lead lining in the 1435600100014 internal aperture and a 7cm wax lining around the lead.1435600100015 METHOD (TOF,PSD) 1435600100016 INC-SOURCE (P-LI7) The neutron beams were produced via the 1435600100017 7Li(p,n)7Be reaction, with a 1.875-MHz pulsed proton 1435600100018 beam.The neutron production target was composed of 1435600100019 thin LiF on a tantalum backing.Target thickness was 1435600100020 chosen such that 2.25-MeV protons would lose 1435600100021 approximately 50 keV before exiting the 1435600100022 target.Neutrons were collimated by a copper shield, 1435600100023 with a 6.35cm opening and a 50.8cm thickness. The 1435600100024 beam was additionally defined by a wax collimator 1435600100025 with an opening matched to that of the copper shield 1435600100026 and tapered down to a 2.2cm opening. 1435600100027 HISTORY (20150414C) Compiled by S.H. 1435600100028 ENDBIB 26 0 1435600100029 NOCOMMON 0 0 1435600100030 ENDSUBENT 29 0 1435600199999 SUBENT 14356002 20150414 14061435600200001 BIB 4 21 1435600200002 REACTION (1-H-1(N,TOT),,SIG) 1435600200003 STATUS (TABLE) Data presented in fig. 6a of the reference 1435600200004 sent by author (B.H.D.) 1435600200005 ERR-ANALYS (ERR-T) Total uncertainty includes the statistical and 1435600200006 systematic errors added in quadrature with the 1435600200007 contribution due to subtracting the experimental 1435600200008 n+C cross section 1435600200009 (ERR-1) Systematic uncertainty due to mass and 1435600200010 dimension of the samples 1435600200011 (ERR-2) Systematic uncertainty in characterization of 1435600200012 the beam and dead time 1435600200013 (ERR-3) Systematic uncertainty due to background 1435600200014 determination 1435600200015 (ERR-S) Statistical uncertainty 1435600200016 SAMPLE Several natural CH2 samples with different thickness 1435600200017 were used 1435600200018 Material thickness(g/cm2) 1435600200019 CH2 0.479 +- 0.003 1435600200020 CH2 0.959 +- 0.006 1435600200021 CH2 1.93 +- 0.01 1435600200022 CH2 2.91 +- 0.02 1435600200023 ENDBIB 21 0 1435600200024 COMMON 4 3 1435600200025 ERR-1 ERR-2 ERR-3 ERR-S 1435600200026 PER-CENT PER-CENT PER-CENT PER-CENT 1435600200027 0.35 0.5 0.5 0.4 1435600200028 ENDCOMMON 3 0 1435600200029 DATA 4 49 1435600200030 EN EN-RSL DATA ERR-T 1435600200031 KEV KEV B B 1435600200032 155.0 5.0 10.78 0.12 1435600200033 165.0 5.0 10.64 0.12 1435600200034 175.0 5.0 10.36 0.12 1435600200035 185.0 5.0 10.05 0.12 1435600200036 195.0 5.0 9.93 0.12 1435600200037 205.0 5.0 9.58 0.14 1435600200038 215.0 5.0 9.42 0.14 1435600200039 225.0 5.0 9.24 0.14 1435600200040 235.0 5.0 9.05 0.14 1435600200041 245.0 5.0 8.85 0.14 1435600200042 255.0 5.0 8.64 0.13 1435600200043 265.0 5.0 8.61 0.13 1435600200044 275.0 5.0 8.43 0.13 1435600200045 285.0 5.0 8.31 0.13 1435600200046 295.0 5.0 8.01 0.13 1435600200047 305.0 5.0 8.12 0.13 1435600200048 315.0 5.0 7.92 0.13 1435600200049 325.0 5.0 7.72 0.13 1435600200050 335.0 5.0 7.49 0.17 1435600200051 345.0 5.0 7.42 0.11 1435600200052 355.0 5.0 7.49 0.11 1435600200053 365.0 5.0 7.21 0.11 1435600200054 375.0 5.0 7.30 0.11 1435600200055 385.0 5.0 7.29 0.11 1435600200056 395.0 5.0 6.99 0.15 1435600200057 405.0 5.0 6.90 0.11 1435600200058 415.0 5.0 6.94 0.10 1435600200059 425.0 5.0 6.88 0.10 1435600200060 435.0 5.0 6.86 0.10 1435600200061 445.0 5.0 6.77 0.10 1435600200062 455.0 5.0 6.61 0.10 1435600200063 465.0 5.0 6.596 0.095 1435600200064 475.0 5.0 6.416 0.093 1435600200065 485.0 5.0 6.303 0.092 1435600200066 495.0 6.0 6.30 0.10 1435600200067 505.0 6.0 6.21 0.11 1435600200068 515.0 6.0 6.21 0.11 1435600200069 525.0 6.0 6.14 0.11 1435600200070 535.0 6.0 6.11 0.11 1435600200071 545.0 7.0 6.05 0.11 1435600200072 555.0 7.0 5.935 0.085 1435600200073 565.0 7.0 5.916 0.083 1435600200074 575.0 7.0 5.868 0.083 1435600200075 585.0 7.0 5.759 0.083 1435600200076 595.0 8.0 5.724 0.083 1435600200077 605.0 8.0 5.725 0.085 1435600200078 615.0 8.0 5.643 0.082 1435600200079 625.0 8.0 5.606 0.082 1435600200080 635.0 8.0 5.590 0.082 1435600200081 ENDDATA 51 0 1435600200082 ENDSUBENT 81 0 1435600299999 SUBENT 14356003 20150414 14061435600300001 BIB 4 18 1435600300002 REACTION (6-C-12(N,TOT),,SIG) 1435600300003 STATUS (TABLE) Data presented in fig. 7a of the reference 1435600300004 sent by author (B.H.D.) 1435600300005 ERR-ANALYS (ERR-T) Total uncertainty include the statistical and 1435600300006 systematic errors added in quadrature 1435600300007 (ERR-1) Systematic uncertainty due to mass and 1435600300008 dimension of the samples 1435600300009 (ERR-2) Systematic uncertainty in characterization of 1435600300010 the beam and dead time 1435600300011 (ERR-3) Systematic uncertainty due to background 1435600300012 determination 1435600300013 (ERR-S) Statistical uncertainty 1435600300014 SAMPLE Several natural C samples with different thickness 1435600300015 were used 1435600300016 Material thickness(g/cm2) 1435600300017 C 4.89 +- 0.02 1435600300018 C 7.24 +- 0.03 1435600300019 C 9.42 +- 0.04 1435600300020 ENDBIB 18 0 1435600300021 COMMON 4 3 1435600300022 ERR-1 ERR-2 ERR-3 ERR-S 1435600300023 PER-CENT PER-CENT PER-CENT PER-CENT 1435600300024 0.35 0.5 0.5 0.4 1435600300025 ENDCOMMON 3 0 1435600300026 DATA 4 49 1435600300027 EN EN-RSL DATA ERR-T 1435600300028 KEV KEV B B 1435600300029 155.0 5.0 4.236 0.048 1435600300030 165.0 5.0 4.174 0.048 1435600300031 175.0 5.0 4.118 0.047 1435600300032 185.0 5.0 4.082 0.047 1435600300033 195.0 5.0 4.100 0.048 1435600300034 205.0 5.0 4.044 0.051 1435600300035 215.0 5.0 3.980 0.050 1435600300036 225.0 5.0 3.966 0.051 1435600300037 235.0 5.0 4.008 0.051 1435600300038 245.0 5.0 3.946 0.052 1435600300039 255.0 5.0 3.924 0.051 1435600300040 265.0 5.0 3.909 0.051 1435600300041 275.0 5.0 3.904 0.051 1435600300042 285.0 5.0 3.868 0.051 1435600300043 295.0 5.0 3.820 0.051 1435600300044 305.0 5.0 3.842 0.051 1435600300045 315.0 5.0 3.788 0.051 1435600300046 325.0 5.0 3.798 0.053 1435600300047 335.0 5.0 3.725 0.063 1435600300048 345.0 5.0 3.704 0.049 1435600300049 355.0 5.0 3.695 0.049 1435600300050 365.0 5.0 3.648 0.048 1435600300051 375.0 5.0 3.642 0.047 1435600300052 385.0 5.0 3.618 0.049 1435600300053 395.0 5.0 3.618 0.061 1435600300054 405.0 5.0 3.564 0.044 1435600300055 415.0 5.0 3.576 0.044 1435600300056 425.0 5.0 3.530 0.043 1435600300057 435.0 5.0 3.515 0.043 1435600300058 445.0 5.0 3.521 0.044 1435600300059 455.0 5.0 3.484 0.045 1435600300060 465.0 5.0 3.499 0.044 1435600300061 475.0 5.0 3.445 0.044 1435600300062 485.0 5.0 3.389 0.040 1435600300063 495.0 6.0 3.401 0.041 1435600300064 505.0 6.0 3.329 0.047 1435600300065 515.0 6.0 3.358 0.047 1435600300066 525.0 6.0 3.312 0.045 1435600300067 535.0 6.0 3.321 0.045 1435600300068 545.0 7.0 3.309 0.045 1435600300069 555.0 7.0 3.301 0.036 1435600300070 565.0 7.0 3.273 0.035 1435600300071 575.0 7.0 3.271 0.035 1435600300072 585.0 7.0 3.248 0.035 1435600300073 595.0 8.0 3.240 0.035 1435600300074 605.0 8.0 3.190 0.037 1435600300075 615.0 8.0 3.185 0.036 1435600300076 625.0 8.0 3.161 0.036 1435600300077 635.0 8.0 3.167 0.036 1435600300078 ENDDATA 51 0 1435600300079 ENDSUBENT 78 0 1435600399999 ENDENTRY 3 0 1435699999999