ENTRY C2452 20191223 C189C245200000001 SUBENT C2452001 20191223 C189C245200100001 BIB 11 32 C245200100002 TITLE Long-range particle emission in coincidence with C245200100003 fission at moderate excitation energies C245200100004 AUTHOR (J.A.Coleman,A.W.Fairhall,I.Halpern) C245200100005 INSTITUTE (1USAWAU) C245200100006 REFERENCE (J,PR,133,B724,1964) C245200100007 #doi:10.1103/PhysRev.133.B724 C245200100008 FACILITY (CYCLO,1USAWAU) C245200100009 DETECTOR (COIN,SIBAR,SIBAR) A pair of silicon surface-barrier C245200100010 semiconductor counters. One of these counters C245200100011 detected one of the two fission fragments. The other C245200100012 counter (covered with a 6.2-mg/cm2 aluminum foil to C245200100013 stop all fission fragments) detected charged C245200100014 particles in coincidence with fission. C245200100015 SAMPLE Thin targets of natural uranium and thorium. The C245200100016 targets consisted of uranium or thorium oxide. The C245200100017 targets were everywhere thinner than 0.5 mg/cm2. C245200100018 METHOD (COINC) C245200100019 ANALYSIS The number of alpha particles per fission was C245200100020 determined from measurements taken with the alpha C245200100021 particle and fission counters at 135 degrees on C245200100022 opposite sides of the beam. The over-all C245200100023 alpha/fission ratios were deduced from a comparison C245200100024 with a standard Cf252 source. C245200100025 In order to convert the measured ratio of (long-range C245200100026 alpha-fission coincidences): (total fission counts in C245200100027 the same time interval) into a useful number, the ratioC245200100028 was divided by the same ratio measured for a Cf252 C245200100029 spontaneous fission source under identical conditions. C245200100030 The result was then multiplied by the known number of C245200100031 alpha particles per fission for Cf252, 3.35e-03. C245200100032 MONITOR (98-CF-252(0,F)2-HE-4,TER,FY) C245200100033 HISTORY (20191223C) OG. C245200100034 ENDBIB 32 0 C245200100035 NOCOMMON 0 0 C245200100036 ENDSUBENT 35 0 C245200199999 SUBENT C2452002 20191223 C189C245200200001 BIB 4 7 C245200200002 REACTION (90-TH-232(A,F)2-HE-4,TER,FY/DE,,REL) C245200200003 METHOD The gated spectrum was obtained when a coincidence C245200200004 was required with a fission counter at 135 degrees on C245200200005 the other side of the beam. C245200200006 ERR-ANALYS No information on uncertainties C245200200007 STATUS (CURVE) Data from Fig.2a from Phys.Rev.133,B724,1964 C245200200008 digitized by GSYS2.4.7. C245200200009 ENDBIB 7 0 C245200200010 COMMON 2 3 C245200200011 EN EN-ERR C245200200012 MEV MEV C245200200013 42.0 0.3 C245200200014 ENDCOMMON 3 0 C245200200015 DATA 3 16 C245200200016 E-MIN E-MAX DATA C245200200017 MEV MEV ARB-UNITS C245200200018 8.2526 9.4446 0.9032 C245200200019 9.4446 10.6040 16.8012 C245200200020 10.6040 11.8131 19.7528 C245200200021 11.8131 12.9783 24.7582 C245200200022 12.9783 14.1800 23.9598 C245200200023 14.1800 15.2922 33.6972 C245200200024 15.2922 16.5233 32.9879 C245200200025 16.5233 18.8078 23.9756 C245200200026 18.8078 20.0419 18.0037 C245200200027 20.0419 21.1999 7.0272 C245200200028 21.1999 22.3733 10.8716 C245200200029 22.3733 23.5358 4.8948 C245200200030 23.5358 24.7075 5.8821 C245200200031 24.7075 25.9150 0.9767 C245200200032 25.9150 27.0884 6.9642 C245200200033 27.0884 30.6335 0.9873 C245200200034 ENDDATA 18 0 C245200200035 ENDSUBENT 34 0 C245200299999 SUBENT C2452003 20191223 C189C245200300001 BIB 4 7 C245200300002 REACTION (90-TH-232(A,F)2-HE-4,TER,FY/DE,,REL) C245200300003 METHOD When a coincidence was required with a charged C245200300004 particle counter placed at 90 degrees to the fission C245200300005 fragment direction. C245200300006 ERR-ANALYS No information on uncertainties C245200300007 STATUS (CURVE) Data from Fig.3b from Phys.Rev.133,B724,1964 C245200300008 digitized by GSYS2.4.7. C245200300009 ENDBIB 7 0 C245200300010 COMMON 2 3 C245200300011 EN EN-ERR C245200300012 MEV MEV C245200300013 42.0 0.3 C245200300014 ENDCOMMON 3 0 C245200300015 DATA 3 19 C245200300016 E-MIN E-MAX DATA C245200300017 MEV MEV ARB-UNITS C245200300018 33.6261 37.4220 1.9133 C245200300019 37.4220 40.9547 0.9794 C245200300020 40.9547 44.3556 6.0224 C245200300021 44.3556 48.3238 14.0119 C245200300022 48.3238 51.7519 16.0238 C245200300023 51.7519 55.6588 27.9695 C245200300024 55.6588 58.8856 21.0589 C245200300025 58.8856 62.6954 25.8501 C245200300026 62.6954 66.4294 26.9363 C245200300027 66.4294 70.2455 16.9958 C245200300028 70.2455 73.7366 19.0080 C245200300029 73.7366 77.5053 17.9905 C245200300030 77.5053 81.0293 13.1004 C245200300031 81.0293 84.5077 16.8809 C245200300032 84.5077 88.1301 14.0116 C245200300033 88.1301 91.5940 9.9636 C245200300034 91.5940 95.3888 4.9899 C245200300035 95.3888 99.1707 3.8877 C245200300036 99.1707 102.6694 0.9336 C245200300037 ENDDATA 21 0 C245200300038 ENDSUBENT 37 0 C245200399999 SUBENT C2452004 20191223 C189C245200400001 BIB 3 4 C245200400002 REACTION (90-TH-232(A,F)2-HE-4,TER,FY) C245200400003 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C245200400004 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C245200400005 (DEP,14577002) C245200400006 ENDBIB 4 0 C245200400007 NOCOMMON 0 0 C245200400008 DATA 4 2 C245200400009 EN EN-ERR DATA DATA-ERR C245200400010 MEV MEV PRT/FIS PRT/FIS C245200400011 29.5 1. 1.96E-03 0.20E-03 C245200400012 42.0 0.3 2.72E-03 0.28E-03 C245200400013 ENDDATA 4 0 C245200400014 ENDSUBENT 13 0 C245200499999 SUBENT C2452005 20191223 C189C245200500001 BIB 3 3 C245200500002 REACTION (92-U-238(A,F)2-HE-4,TER,FY) C245200500003 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C245200500004 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C245200500005 ENDBIB 3 0 C245200500006 NOCOMMON 0 0 C245200500007 DATA 4 2 C245200500008 EN EN-ERR DATA DATA-ERR C245200500009 MEV MEV PRT/FIS PRT/FIS C245200500010 29.5 1. 2.56E-03 0.29E-03 C245200500011 42.0 0.3 3.52E-03 0.28E-03 C245200500012 ENDDATA 4 0 C245200500013 ENDSUBENT 12 0 C245200599999 SUBENT C2452006 20191223 C189C245200600001 BIB 3 3 C245200600002 REACTION (90-TH-232(P,F)2-HE-4,TER,FY) C245200600003 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C245200600004 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C245200600005 ENDBIB 3 0 C245200600006 NOCOMMON 0 0 C245200600007 DATA 4 1 C245200600008 EN EN-ERR DATA DATA-ERR C245200600009 MEV MEV PRT/FIS PRT/FIS C245200600010 10.5 0.1 1.50E-03 0.27E-03 C245200600011 ENDDATA 3 0 C245200600012 ENDSUBENT 11 0 C245200699999 SUBENT C2452007 20191223 C189C245200700001 BIB 3 3 C245200700002 REACTION (92-U-238(P,F)2-HE-4,TER,FY) C245200700003 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties C245200700004 STATUS (TABLE) Table I in Phys.Rev.133,B724,1964. C245200700005 ENDBIB 3 0 C245200700006 NOCOMMON 0 0 C245200700007 DATA 4 1 C245200700008 EN EN-ERR DATA DATA-ERR C245200700009 MEV MEV PRT/FIS PRT/FIS C245200700010 10.5 0.1 1.66E-03 0.20E-03 C245200700011 ENDDATA 3 0 C245200700012 ENDSUBENT 11 0 C245200799999 ENDENTRY 7 0 C245299999999