ENTRY C2881 20230105 C226C2881000 1 SUBENT C2881001 20230105 C226C2881001 1 BIB 9 27 C2881001 2 TITLE Thresholds for the Proton-Neutron Reactions of C2881001 3 Lithium, Beryllium, Boron, and Carbon C2881001 4 AUTHOR (R.O.Haxby,W.E.Shoupp,W.E.Stephens,W.H.Wells) C2881001 5 REFERENCE (J,PR,58,1035,1940) C2881001 6 #doi:10.1103/PhysRev.58.1035 C2881001 7 INSTITUTE (1USAWES) C2881001 8 FACILITY (ACCEL,1USAWES) The Westinghouse pressure C2881001 9 electrostatic generator. C2881001 10 DETECTOR (BF3) Neutrons coming from the target were slowed C2881001 11 down in the block of paraffin and detected by means C2881001 12 of the BF3 ionization chamber inserted in the C2881001 13 paraffin near the target. C2881001 14 METHOD The voltage with which the protons are accelerated C2881001 15 was measured by a generating voltmeter in which the C2881001 16 principle of the compensating voltage plate was used. C2881001 17 In this voltmeter, the generating voltmeter itself is C2881001 18 used only to detect the absence of inhomogeneities in C2881001 19 the field behind the voltage plate. Voltage is C2881001 20 applied to this voltage plate until it coincides with C2881001 21 an equipotential surface of the field from the high C2881001 22 potential electrode. This condition is detected by C2881001 23 the absence of pick-up in the generating voltmeter C2881001 24 part. The high potential is then proportional to the C2881001 25 voltage on the voltage plate and is measured by means C2881001 26 of precision resistors and a good milliammeter. C2881001 27 ERR-ANALYS (DATA-ERR) Probable errors. C2881001 28 HISTORY (20230105C) BP C2881001 29 ENDBIB 27 0 C2881001 30 NOCOMMON 0 0 C2881001 31 ENDSUBENT 30 0 C288100199999 SUBENT C2881002 20230105 C226C2881002 1 BIB 3 6 C2881002 2 REACTION (4-BE-9(P,X)0-NN-1,,PY,,TT/CH) C2881002 3 METHOD Thick target neutron yield curve for Be(p,n) taken C2881002 4 with BF3 Geiger counter, a few pieces of paraffin, C2881002 5 and the first generating voltmeter. C2881002 6 STATUS (CURVE,,R.O.Haxby+,J,PR,58,1035,1940) C2881002 7 Fig. 6, page 1038 of J,PR,58,1035,1940. C2881002 8 ENDBIB 6 0 C2881002 9 NOCOMMON 0 0 C2881002 10 DATA 4 10 C2881002 11 EN EN-ERR DATA DATA-ERR C2881002 12 MEV MEV PRD/MUCOUL PRD/MUCOUL C2881002 13 2.059 0.015 2.100 1.075 C2881002 14 2.124 0.016 11.492 1.209 C2881002 15 2.151 0.012 10.815 1.075 C2881002 16 2.160 0.017 9.873 1.612 C2881002 17 2.200 0.021 18.330 3.090 C2881002 18 2.220 0.011 20.341 2.150 C2881002 19 2.326 0.012 32.548 1.746 C2881002 20 2.327 0.015 39.803 1.613 C2881002 21 2.391 0.016 41.268 2.016 C2881002 22 2.521 0.017 69.996 3.492 C2881002 23 ENDDATA 12 0 C2881002 24 ENDSUBENT 23 0 C288100299999 SUBENT C2881003 20230105 C226C2881003 1 BIB 3 6 C2881003 2 REACTION (4-BE-9(P,X)0-NN-1,,PY,,TT/CH) C2881003 3 METHOD Thick target neutron yield curve for Be(p,n) taken C2881003 4 with BF3 ionization chamber in paraffin and with the C2881003 5 first generating voltmeter. C2881003 6 STATUS (CURVE,,R.O.Haxby+,J,PR,58,1035,1940) C2881003 7 Fig. 7, page 1039 of J,PR,58,1035,1940. C2881003 8 ENDBIB 6 0 C2881003 9 NOCOMMON 0 0 C2881003 10 DATA 4 14 C2881003 11 EN EN-ERR DATA DATA-ERR C2881003 12 MEV MEV PRD/MUCOUL PRD/MUCOUL C2881003 13 2.010 0.004 0.290 C2881003 14 2.035 0.003 20.797 C2881003 15 2.035 0.005 16.477 C2881003 16 2.040 0.003 50.223 C2881003 17 2.040 0.003 29.356 C2881003 18 2.040 0.004 43.021 C2881003 19 2.050 0.003 106.912 5.040 C2881003 20 2.050 0.002 75.254 7.198 C2881003 21 2.069 0.005 240.441 12.957 C2881003 22 2.069 0.005 185.044 C2881003 23 2.070 149.789 6.483 C2881003 24 2.070 0.002 201.586 6.483 C2881003 25 2.089 235.115 7.198 C2881003 26 2.109 0.003 331.960 6.483 C2881003 27 ENDDATA 16 0 C2881003 28 ENDSUBENT 27 0 C288100399999 SUBENT C2881004 20230105 C226C2881004 1 BIB 3 6 C2881004 2 REACTION (4-BE-9(P,X)0-NN-1,,PY,,TT/CH) C2881004 3 METHOD Thick target neutron yield curve for Be(p,n) taken C2881004 4 with BF3 ionization chamber in paraffin and with the C2881004 5 second generating voltmeter. C2881004 6 STATUS (CURVE,,R.O.Haxby+,J,PR,58,1035,1940) C2881004 7 Fig. 8, page 1039 of J,PR,58,1035,1940. C2881004 8 ENDBIB 6 0 C2881004 9 NOCOMMON 0 0 C2881004 10 DATA 3 10 C2881004 11 EN DATA DATA-ERR C2881004 12 MEV PRD/MUCOUL PRD/MUCOUL C2881004 13 1.997 7.153 C2881004 14 2.014 8.878 C2881004 15 2.029 8.017 C2881004 16 2.030 10.806 C2881004 17 2.031 14.681 C2881004 18 2.037 24.396 1.933 C2881004 19 2.043 55.719 2.776 C2881004 20 2.052 90.948 3.206 C2881004 21 2.056 88.652 3.206 C2881004 22 2.062 135.404 C2881004 23 ENDDATA 12 0 C2881004 24 ENDSUBENT 23 0 C288100499999 SUBENT C2881005 20230105 C226C2881005 1 BIB 3 6 C2881005 2 REACTION (3-LI-0(P,X)0-NN-1,,PY,,TT/CH) C2881005 3 METHOD Thick target neutron yield curve for LiOH(p,n) taken C2881005 4 with BF3 ionization chamber and with the first C2881005 5 generating voltmeter. C2881005 6 STATUS (CURVE,,R.O.Haxby+,J,PR,58,1035,1940) C2881005 7 Fig. 9, page 1040 of J,PR,58,1035,1940. C2881005 8 ENDBIB 6 0 C2881005 9 NOCOMMON 0 0 C2881005 10 DATA 4 10 C2881005 11 EN EN-ERR DATA DATA-ERR C2881005 12 MEV MEV PRD/MUCOUL PRD/MUCOUL C2881005 13 1.798 0.003 0.005 C2881005 14 1.845 0.003 0.158 C2881005 15 1.860 0.004 13.545 C2881005 16 1.860 0.004 11.519 C2881005 17 1.870 0.002 50.233 3.038 C2881005 18 1.879 0.002 76.035 3.040 C2881005 19 1.890 0.004 67.659 3.292 C2881005 20 1.895 0.004 108.661 3.544 C2881005 21 1.895 0.004 123.598 3.292 C2881005 22 1.904 0.004 126.615 3.546 C2881005 23 ENDDATA 12 0 C2881005 24 ENDSUBENT 23 0 C288100599999 SUBENT C2881006 20230105 C226C2881006 1 BIB 3 6 C2881006 2 REACTION (5-B-0(P,X)0-NN-1,,PY,,TT/CH) C2881006 3 METHOD Thick target neutron yield curve for B4C(p,n) taken C2881006 4 with BF3 ionization chamber in paraffin and with C2881006 5 second generating voltmeter. C2881006 6 STATUS (CURVE,,R.O.Haxby+,J,PR,58,1035,1940) C2881006 7 Fig. 10, page 1040 of J,PR,58,1035,1940. C2881006 8 ENDBIB 6 0 C2881006 9 NOCOMMON 0 0 C2881006 10 DATA 3 12 C2881006 11 EN DATA DATA-ERR C2881006 12 MEV PRD/MUCOUL PRD/MUCOUL C2881006 13 2.954 4.710 1.855 C2881006 14 2.971 5.012 1.180 C2881006 15 2.974 9.387 2.022 C2881006 16 2.976 7.362 1.855 C2881006 17 2.982 20.832 2.190 C2881006 18 2.987 13.405 2.361 C2881006 19 2.988 31.943 2.359 C2881006 20 2.994 26.705 2.022 C2881006 21 2.995 40.861 2.697 C2881006 22 3.007 56.677 2.529 C2881006 23 3.010 61.559 2.529 C2881006 24 3.028 106.183 4.214 C2881006 25 ENDDATA 14 0 C2881006 26 ENDSUBENT 25 0 C288100699999 SUBENT C2881007 20230105 C226C2881007 1 BIB 3 6 C2881007 2 REACTION (6-C-0(P,X)0-NN-1,,PY,,TT/CH) C2881007 3 METHOD Thick target neutron yield curve for C(p,n) taken C2881007 4 with BF3 ionization chamber in paraffin and with C2881007 5 first generating voltmeter. C2881007 6 STATUS (CURVE,,R.O.Haxby+,J,PR,58,1035,1940) C2881007 7 Fig. 11, page 1041 of J,PR,58,1035,1940. C2881007 8 ENDBIB 6 0 C2881007 9 NOCOMMON 0 0 C2881007 10 DATA 4 14 C2881007 11 EN EN-ERR DATA DATA-ERR C2881007 12 MEV MEV PRD/MUCOUL PRD/MUCOUL C2881007 13 3.150 0.026 0.825 0.168 C2881007 14 3.200 1.244 0.311 C2881007 15 3.210 0.006 0.883 0.335 C2881007 16 3.220 1.574 0.407 C2881007 17 3.221 1.837 0.383 C2881007 18 3.259 0.009 2.354 0.215 C2881007 19 3.260 0.005 2.713 0.646 C2881007 20 3.269 0.010 2.950 0.239 C2881007 21 3.270 0.004 2.663 0.335 C2881007 22 3.309 0.014 4.543 0.478 C2881007 23 3.359 0.007 5.632 0.479 C2881007 24 3.359 0.008 4.292 0.407 C2881007 25 3.459 0.014 7.905 0.814 C2881007 26 3.498 0.009 8.804 0.551 C2881007 27 ENDDATA 16 0 C2881007 28 ENDSUBENT 27 0 C288100799999 ENDENTRY 7 0 C288199999999