ENTRY C2856 20221118 C226C2856000 1 SUBENT C2856001 20221118 C226C2856001 1 BIB 10 29 C2856001 2 TITLE Neutron Thresholds in the Deuteron Bombardment of Neon C2856001 3 AUTHOR (J.B.Marion,J.C.Slattery,R.A.Chapman) C2856001 4 REFERENCE (J,PR,103,676,1956) C2856001 5 #doi:10.1103/PhysRev.103.676 C2856001 6 REL-REF (M,C2877001,R.M.Brugger+,J,PR,100,84,1955) The counter C2856001 7 ratio technique and detectors. C2856001 8 INSTITUTE (1USARIC) C2856001 9 FACILITY (VDG,1USARIC) The Rice Institute Van de Graaff C2856001 10 accelerator. C2856001 11 SAMPLE (10-NE-20,NAT=0.909) Since neon is chemically inert, C2856001 12 it is difficult to prepare a solid target containing C2856001 13 a sufficient amount of neon to make neutron C2856001 14 measurements possible. For this reason, a gas cell C2856001 15 containing natural neon(90.9% Ne20, 0.26% Ne21, and C2856001 16 8.8% Ne22) was employed. The neon gas was C2856001 17 spectroscopically pure. The gas cell was a platinum C2856001 18 tube, 0.5 in. in diameter and 1.5 in. in length. The C2856001 19 entrance aperture, 0.25 in. in diameter, was covered C2856001 20 with a nickel foil, either 0.025 mil or 0.10 mil in C2856001 21 thickness. Gas pressures of 5 in. Hg were used. This C2856001 22 amount of neon is about 135 keV thick to 2-MeV C2856001 23 deuterons. C2856001 24 DETECTOR (BF3) Two paraffin-moderated BF3 counters, one C2856001 25 preferentially sensitive to neutrons with energies up C2856001 26 to about 300 keV and the other sensitive only to C2856001 27 those neutrons whose energy is greater than about 300 C2856001 28 keV. C2856001 29 METHOD The counter ratio technique. C2856001 30 HISTORY (20221118C) BP C2856001 31 ENDBIB 29 0 C2856001 32 NOCOMMON 0 0 C2856001 33 ENDSUBENT 32 0 C285600199999 SUBENT C2856002 20221118 C226C2856002 1 BIB 3 4 C2856002 2 REACTION (10-NE-0(D,N),,SIG,,REL) C2856002 3 SAMPLE The gas target with the 0.025-mil nickel foil was used.C2856002 4 STATUS (CURVE,,J.B.Marion+,J,PR,103,676,1956) C2856002 5 Fig. 2, page 677 of J,PR,103,676,1956. C2856002 6 ENDBIB 4 0 C2856002 7 NOCOMMON 0 0 C2856002 8 DATA 2 45 C2856002 9 EN DATA C2856002 10 MEV ARB-UNITS C2856002 11 1.123 0.031 C2856002 12 1.138 0.029 C2856002 13 1.161 0.033 C2856002 14 1.182 0.034 C2856002 15 1.199 0.038 C2856002 16 1.220 0.039 C2856002 17 1.236 0.044 C2856002 18 1.259 0.045 C2856002 19 1.276 0.046 C2856002 20 1.299 0.051 C2856002 21 1.320 0.050 C2856002 22 1.341 0.057 C2856002 23 1.358 0.060 C2856002 24 1.379 0.068 C2856002 25 1.396 0.073 C2856002 26 1.417 0.082 C2856002 27 1.434 0.091 C2856002 28 1.440 0.095 C2856002 29 1.453 0.105 C2856002 30 1.464 0.119 C2856002 31 1.476 0.129 C2856002 32 1.487 0.140 C2856002 33 1.494 0.145 C2856002 34 1.500 0.157 C2856002 35 1.513 0.163 C2856002 36 1.525 0.168 C2856002 37 1.536 0.165 C2856002 38 1.548 0.158 C2856002 39 1.563 0.157 C2856002 40 1.575 0.137 C2856002 41 1.589 0.138 C2856002 42 1.613 0.145 C2856002 43 1.636 0.144 C2856002 44 1.657 0.152 C2856002 45 1.673 0.150 C2856002 46 1.713 0.161 C2856002 47 1.755 0.157 C2856002 48 1.788 0.160 C2856002 49 1.835 0.181 C2856002 50 1.875 0.194 C2856002 51 1.915 0.206 C2856002 52 1.951 0.226 C2856002 53 1.989 0.249 C2856002 54 2.027 0.273 C2856002 55 2.071 0.286 C2856002 56 ENDDATA 47 0 C2856002 57 ENDSUBENT 56 0 C285600299999 SUBENT C2856003 20221118 C226C2856003 1 BIB 3 4 C2856003 2 REACTION (10-NE-0(D,X)0-NN-1,,DA,,AV) C2856003 3 SAMPLE The gas target with the 0.10-mil nickel foil was used. C2856003 4 STATUS (CURVE,,J.B.Marion+,J,PR,103,676,1956) C2856003 5 Fig. 3, page 677 of J,PR,103,676,1956. C2856003 6 ENDBIB 4 0 C2856003 7 COMMON 2 3 C2856003 8 ANG-MIN ANG-MAX C2856003 9 ADEG ADEG C2856003 10 0.0 15.0 C2856003 11 ENDCOMMON 3 0 C2856003 12 DATA 2 40 C2856003 13 EN DATA C2856003 14 MEV MB/SR C2856003 15 2.205 1.400E+01 C2856003 16 2.225 1.525E+01 C2856003 17 2.245 1.608E+01 C2856003 18 2.264 1.629E+01 C2856003 19 2.286 1.692E+01 C2856003 20 2.307 1.671E+01 C2856003 21 2.331 1.734E+01 C2856003 22 2.351 1.692E+01 C2856003 23 2.374 1.630E+01 C2856003 24 2.392 1.589E+01 C2856003 25 2.415 1.527E+01 C2856003 26 2.439 1.548E+01 C2856003 27 2.460 1.611E+01 C2856003 28 2.480 1.652E+01 C2856003 29 2.502 1.736E+01 C2856003 30 2.522 1.881E+01 C2856003 31 2.539 1.923E+01 C2856003 32 2.565 2.006E+01 C2856003 33 2.585 2.152E+01 C2856003 34 2.606 2.194E+01 C2856003 35 2.628 2.256E+01 C2856003 36 2.652 2.360E+01 C2856003 37 2.669 2.236E+01 C2856003 38 2.693 2.278E+01 C2856003 39 2.717 2.361E+01 C2856003 40 2.734 2.465E+01 C2856003 41 2.758 2.798E+01 C2856003 42 2.782 3.255E+01 C2856003 43 2.799 3.546E+01 C2856003 44 2.819 3.816E+01 C2856003 45 2.842 4.107E+01 C2856003 46 2.862 4.253E+01 C2856003 47 2.884 4.606E+01 C2856003 48 2.906 4.876E+01 C2856003 49 2.928 5.188E+01 C2856003 50 2.950 5.334E+01 C2856003 51 2.974 5.812E+01 C2856003 52 2.990 6.144E+01 C2856003 53 3.016 6.580E+01 C2856003 54 3.034 7.037E+01 C2856003 55 ENDDATA 42 0 C2856003 56 ENDSUBENT 55 0 C285600399999 ENDENTRY 3 0 C285699999999