ENTRY C2452 20200205 C189C2452 0 1 SUBENT C2452001 20191223 C189C2452 1 1 BIB 11 32 C2452 1 2 TITLE Long-range particle emission in coincidence with C2452 1 3 fission at moderate excitation energies C2452 1 4 AUTHOR (J.A.Coleman,A.W.Fairhall,I.Halpern) C2452 1 5 INSTITUTE (1USAWAU) C2452 1 6 REFERENCE (J,PR,133,B724,1964) C2452 1 7 #doi:10.1103/PhysRev.133.B724 C2452 1 8 FACILITY (CYCLO,1USAWAU) C2452 1 9 DETECTOR (COIN,SIBAR,SIBAR) A pair of silicon surface-barrier C2452 1 10 semiconductor counters. One of these counters C2452 1 11 detected one of the two fission fragments. The other C2452 1 12 counter (covered with a 6.2-mg/cm2 aluminum foil to C2452 1 13 stop all fission fragments) detected charged C2452 1 14 particles in coincidence with fission. C2452 1 15 SAMPLE Thin targets of natural uranium and thorium. The C2452 1 16 targets consisted of uranium or thorium oxide. The C2452 1 17 targets were everywhere thinner than 0.5 mg/cm2. C2452 1 18 METHOD (COINC) C2452 1 19 ANALYSIS The number of alpha particles per fission was C2452 1 20 determined from measurements taken with the alpha C2452 1 21 particle and fission counters at 135 degrees on C2452 1 22 opposite sides of the beam. The over-all C2452 1 23 alpha/fission ratios were deduced from a comparison C2452 1 24 with a standard Cf252 source. C2452 1 25 In order to convert the measured ratio of (long-range C2452 1 26 alpha-fission coincidences): (total fission counts in C2452 1 27 the same time interval) into a useful number, the ratioC2452 1 28 was divided by the same ratio measured for a Cf252 C2452 1 29 spontaneous fission source under identical conditions. C2452 1 30 The result was then multiplied by the known number of C2452 1 31 alpha particles per fission for Cf252, 3.35e-03. C2452 1 32 MONITOR (98-CF-252(0,F)2-HE-4,TER,FY) C2452 1 33 HISTORY (20191223C) OG. C2452 1 34 ENDBIB 32 0 C2452 1 35 NOCOMMON 0 0 C2452 1 36 ENDSUBENT 35 0 C2452 199999 SUBENT C2452002 20191223 C189C2452 2 1 BIB 4 7 C2452 2 2 REACTION (90-TH-232(A,F)2-HE-4,TER,FY/DE,,REL) C2452 2 3 METHOD The gated spectrum was obtained when a coincidence C2452 2 4 was required with a fission counter at 135 degrees on C2452 2 5 the other side of the beam. C2452 2 6 ERR-ANALYS No information on uncertainties C2452 2 7 STATUS (CURVE) Data from Fig.2a from Phys.Rev.133,B724,1964 C2452 2 8 digitized by GSYS2.4.7. C2452 2 9 ENDBIB 7 0 C2452 2 10 COMMON 2 3 C2452 2 11 EN EN-ERR C2452 2 12 MEV MEV C2452 2 13 42.0 0.3 C2452 2 14 ENDCOMMON 3 0 C2452 2 15 DATA 3 16 C2452 2 16 E-MIN E-MAX DATA C2452 2 17 MEV MEV ARB-UNITS C2452 2 18 8.2526 9.4446 0.9032 C2452 2 19 9.4446 10.6040 16.8012 C2452 2 20 10.6040 11.8131 19.7528 C2452 2 21 11.8131 12.9783 24.7582 C2452 2 22 12.9783 14.1800 23.9598 C2452 2 23 14.1800 15.2922 33.6972 C2452 2 24 15.2922 16.5233 32.9879 C2452 2 25 16.5233 18.8078 23.9756 C2452 2 26 18.8078 20.0419 18.0037 C2452 2 27 20.0419 21.1999 7.0272 C2452 2 28 21.1999 22.3733 10.8716 C2452 2 29 22.3733 23.5358 4.8948 C2452 2 30 23.5358 24.7075 5.8821 C2452 2 31 24.7075 25.9150 0.9767 C2452 2 32 25.9150 27.0884 6.9642 C2452 2 33 27.0884 30.6335 0.9873 C2452 2 34 ENDDATA 18 0 C2452 2 35 ENDSUBENT 34 0 C2452 299999 SUBENT C2452003 20191223 C189C2452 3 1 BIB 4 7 C2452 3 2 REACTION (90-TH-232(A,F)2-HE-4,TER,FY/DE,,REL) C2452 3 3 METHOD When a coincidence was required with a charged C2452 3 4 particle counter placed at 90 degrees to the fission C2452 3 5 fragment direction. C2452 3 6 ERR-ANALYS No information on uncertainties C2452 3 7 STATUS (CURVE) Data from Fig.3b from Phys.Rev.133,B724,1964 C2452 3 8 digitized by GSYS2.4.7. C2452 3 9 ENDBIB 7 0 C2452 3 10 COMMON 2 3 C2452 3 11 EN EN-ERR C2452 3 12 MEV MEV C2452 3 13 42.0 0.3 C2452 3 14 ENDCOMMON 3 0 C2452 3 15 DATA 3 19 C2452 3 16 E-MIN E-MAX DATA C2452 3 17 MEV MEV ARB-UNITS C2452 3 18 33.6261 37.4220 1.9133 C2452 3 19 37.4220 40.9547 0.9794 C2452 3 20 40.9547 44.3556 6.0224 C2452 3 21 44.3556 48.3238 14.0119 C2452 3 22 48.3238 51.7519 16.0238 C2452 3 23 51.7519 55.6588 27.9695 C2452 3 24 55.6588 58.8856 21.0589 C2452 3 25 58.8856 62.6954 25.8501 C2452 3 26 62.6954 66.4294 26.9363 C2452 3 27 66.4294 70.2455 16.9958 C2452 3 28 70.2455 73.7366 19.0080 C2452 3 29 73.7366 77.5053 17.9905 C2452 3 30 77.5053 81.0293 13.1004 C2452 3 31 81.0293 84.5077 16.8809 C2452 3 32 84.5077 88.1301 14.0116 C2452 3 33 88.1301 91.5940 9.9636 C2452 3 34 91.5940 95.3888 4.9899 C2452 3 35 95.3888 99.1707 3.8877 C2452 3 36 99.1707 102.6694 0.9336 C2452 3 37 ENDDATA 21 0 C2452 3 38 ENDSUBENT 37 0 C2452 399999 SUBENT C2452004 20191223 C189C2452 4 1 BIB 3 4 C2452 4 2 REACTION (90-TH-232(A,F)2-HE-4,TER,FY) C2452 4 3 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C2452 4 4 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C2452 4 5 (DEP,14577002) C2452 4 6 ENDBIB 4 0 C2452 4 7 NOCOMMON 0 0 C2452 4 8 DATA 4 2 C2452 4 9 EN EN-ERR DATA DATA-ERR C2452 4 10 MEV MEV PRT/FIS PRT/FIS C2452 4 11 29.5 1. 1.96E-03 0.20E-03 C2452 4 12 42.0 0.3 2.72E-03 0.28E-03 C2452 4 13 ENDDATA 4 0 C2452 4 14 ENDSUBENT 13 0 C2452 499999 SUBENT C2452005 20191223 C189C2452 5 1 BIB 3 3 C2452 5 2 REACTION (92-U-238(A,F)2-HE-4,TER,FY) C2452 5 3 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C2452 5 4 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C2452 5 5 ENDBIB 3 0 C2452 5 6 NOCOMMON 0 0 C2452 5 7 DATA 4 2 C2452 5 8 EN EN-ERR DATA DATA-ERR C2452 5 9 MEV MEV PRT/FIS PRT/FIS C2452 5 10 29.5 1. 2.56E-03 0.29E-03 C2452 5 11 42.0 0.3 3.52E-03 0.28E-03 C2452 5 12 ENDDATA 4 0 C2452 5 13 ENDSUBENT 12 0 C2452 599999 SUBENT C2452006 20191223 C189C2452 6 1 BIB 3 3 C2452 6 2 REACTION (90-TH-232(P,F)2-HE-4,TER,FY) C2452 6 3 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C2452 6 4 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C2452 6 5 ENDBIB 3 0 C2452 6 6 NOCOMMON 0 0 C2452 6 7 DATA 4 1 C2452 6 8 EN EN-ERR DATA DATA-ERR C2452 6 9 MEV MEV PRT/FIS PRT/FIS C2452 6 10 10.5 0.1 1.50E-03 0.27E-03 C2452 6 11 ENDDATA 3 0 C2452 6 12 ENDSUBENT 11 0 C2452 699999 SUBENT C2452007 20191223 C189C2452 7 1 BIB 3 3 C2452 7 2 REACTION (92-U-238(P,F)2-HE-4,TER,FY) C2452 7 3 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C2452 7 4 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C2452 7 5 ENDBIB 3 0 C2452 7 6 NOCOMMON 0 0 C2452 7 7 DATA 4 1 C2452 7 8 EN EN-ERR DATA DATA-ERR C2452 7 9 MEV MEV PRT/FIS PRT/FIS C2452 7 10 10.5 0.1 1.66E-03 0.20E-03 C2452 7 11 ENDDATA 3 0 C2452 7 12 ENDSUBENT 11 0 C2452 799999 ENDENTRY 7 0 C245299999999