ENTRY 21776 20110307 22262177600000001 SUBENT 21776001 20110307 22262177600100001 BIB 15 45 2177600100002 INSTITUTE (2FR ILL) M.A., P.P., G.B., And experimental site 2177600100003 (2FR GRA) F.C. And B.L. 2177600100004 (2FR GRE) M.M. 2177600100005 REFERENCE (J,NP/A,373,225,198201) 2177600100006 (C,79JUELICH,2,81,1979) 2177600100007 AUTHOR (M.Asghar,F.Caitucoli,B.Leroux,M.Maurel, 2177600100008 P.Perrin,G.Barreau) 2177600100009 TITLE -Fission fragment energy correlation 2177600100010 measurements for Th-229(n,f). 2177600100011 FACILITY (REAC,2FR ILL) ILL high flux reactor. 2177600100012 INC-SOURCE (THCOL) Cold neutron beam hole IH1. 2177600100013 INC-SPECT .The equivalent thermal neutron flux at target was 2177600100014 5.x 10**9 neutrons per cm2 per second, with 2177600100015 a thermal to fast ratio of 5.x 10**4 . 2177600100016 SAMPLE .0.914 micro-g/cm2 thorium dioxide or 2177600100017 20.2 micro-g/cm2 natural uranium oxide 2177600100018 evaporated onto nickel backing. 2177600100019 .Uranium sample used for calibration data. 2177600100020 METHOD (COINC) Fast and slow coincidence combined with 2177600100021 (TOF) Time of flight difference between fission 2177600100022 fragments, used as a coherence test to 2177600100023 reject badly measured data. 2177600100024 DETECTOR (SIBAR) Two gold-silicon surface barrier detectors. 2177600100025 ANALYSIS .Pulse heights converted to kinetic energies and 2177600100026 masses via an iterative procedure using the 2177600100027 calibration method of Schmidt+ C,65SALZBURG,1,531,65 .2177600100028 CORRECTION .Differences between energy loss in backings of 2177600100029 thorium and uranium samples. 2177600100030 .No corrections made for the effect of neutron 2177600100031 emission, except when indicated by a flag. 2177600100032 COMMENT From the author:"As regards the issue thermal-cold it 2177600100033 is correctly said in the paper by Asghar that the IH1 2177600100034 beam of the ILL is cold. However, the beam IH1 has a 2177600100035 wavelength peak at 3.2 A corresponding to a neutron 2177600100036 energy of 8 meV, while thermal neutrons have 1.8 A 2177600100037 with the energy being 25 meV. The beam IH1 is hence 2177600100038 only "slightly cold". " 2177600100039 STATUS (TABLE) .Data taken from NP/A,373,225,1982 2177600100040 HISTORY (19820416C) A.P.T. 2177600100041 (19820921E) 2177600100042 (20090401A) Date is corrected. BIB info updated 2177600100043 Upper case to low case converted. 2177600100044 (20110307A) SD: In COMMON section of Subent 001: 2177600100045 EN-DUMMY changed on kT according to author's 2177600100046 comments 2177600100047 ENDBIB 45 0 2177600100048 COMMON 2 3 2177600100049 KT MASS-RSL 2177600100050 MILLI-EV NO-DIM 2177600100051 8.0 3. 2177600100052 ENDCOMMON 3 0 2177600100053 ENDSUBENT 52 0 2177600199999 SUBENT 21776002 20090401 22112177600200001 BIB 5 8 2177600200002 REACTION 1(90-TH-229(N,F),PRE,AKE,LF+HF,MXW) 2177600200003 2(90-TH-229(N,F),SEC,AKE,LF+HF,MXW) 2177600200004 ASSUMED (ASSUM,90-TH-229(N,F),PR,NU,,MXW) 2177600200005 ERR-ANALYS (DATA-ERR) No details given. 2177600200006 FLAG (1.) Data corrected for neutron emission. 2177600200007 HISTORY (20090401U) SF5=SEC,PRE added. ERR-ANALYS moved 2177600200008 from SAN 001. FLAG deleted, pointers introduced. 2177600200009 SF7 changed to LF+HF 2177600200010 ENDBIB 8 0 2177600200011 NOCOMMON 0 0 2177600200012 DATA 6 2 2177600200013 DATA 1DATA-ERR 1ASSUM 1DATA 2DATA-ERR 2FLAG 2177600200014 MEV MEV NO-DIM MEV MEV NO-DIM 2177600200015 1.636E+02 5.E-01 2.44 1. 2177600200016 1.624E+02 5.E-01 2177600200017 ENDDATA 4 0 2177600200018 ENDSUBENT 17 0 2177600299999 SUBENT 21776003 20090401 22112177600300001 BIB 4 5 2177600300002 REACTION 1(90-TH-229(N,F),SEC,AKE,LF,MXW) 2177600300003 2(90-TH-229(N,F),PRE,AKE,HF,MXW) 2177600300004 ASSUMED (ASSUM,90-TH-229(N,F),PR,NU,,MXW) 2177600300005 FLAG (1.) Data corrected for neutron emission. 2177600300006 HISTORY (20090401U) SF5=SEC,PRE added. 2177600300007 ENDBIB 5 0 2177600300008 NOCOMMON 0 0 2177600300009 DATA 4 2 2177600300010 DATA 1ASSUM 1DATA 2FLAG 2177600300011 MEV NO-DIM MEV NO-DIM 2177600300012 9.89E+01 6.35E+01 2177600300013 9.96E+01 2.44 6.39E+01 1. 2177600300014 ENDDATA 4 0 2177600300015 ENDSUBENT 14 0 2177600399999 SUBENT 21776004 20090401 22112177600400001 BIB 2 5 2177600400002 REACTION 1(90-TH-229(N,F),PRV,AP,LF,MXW) Average mass of light 2177600400003 fragment. 2177600400004 2(90-TH-229(N,F),PRV,AP,HF,MXW) Average mass of heavy 2177600400005 fragment. 2177600400006 HISTORY (20090401U) SF5 = PRV added. 2177600400007 ENDBIB 5 0 2177600400008 NOCOMMON 0 0 2177600400009 DATA 2 1 2177600400010 DATA 1DATA 2 2177600400011 NO-DIM NO-DIM 2177600400012 8.98E+01 1.402E+02 2177600400013 ENDDATA 3 0 2177600400014 ENDSUBENT 13 0 2177600499999 ENDENTRY 4 0 2177699999999