ENTRY 30418 20060315 3041800000001 SUBENT 30418001 20060315 20060814 3041800100001 BIB 9 33 3041800100002 INSTITUTE (3INDTRM) 3041800100003 REFERENCE (J,NP/A,246,505,197507) 3041800100004 (C,73BANGLO,2,186,1973) 3041800100005 (P,BARC-768,63,1974) Data superseded 3041800100006 (P,BARC-694,63,1973) Data superseded 3041800100007 (P,BARC-770,8,1974) Short note,no data 3041800100008 (C,73ROCH,2,477,197308) Abstract only 3041800100009 AUTHOR (N.N.Ajitanand,R.K.Choudhury,S.S.Kapoor) 3041800100010 TITLE Determination of fragment isotopic yields in the 3041800100011 fission of 252Cf accompanied by light charged particles3041800100012 SAMPLE 3 252Cf sources. two with source strengths of about 3041800100013 10e+5 fissions/min for measuring ternary fission events3041800100014 and one weaker source with about 900 fissions/min for 3041800100015 measuring binary fission events. 3041800100016 METHOD Binary fission events were recorded by measuring 3041800100017 fission fragments in coincidence with prompt gamma-rays3041800100018 emitted from these fragments.simultaneously ternary 3041800100019 fission events were recorded by measuring light charged3041800100020 particles (LCP) from fission in coincidence with prompt3041800100021 gamma-rays emitted from lcp accompanied fragments.the 3041800100022 two strong sources were covered with 7 mg/cm3 thick 3041800100023 aluminium foils to stop fission fragments and decay 3041800100024 alphas,so that only lcp reach the detectors. 3041800100025 DETECTOR (GELI) 30 cm3 ge(li) detector for gamma-rays,and 3041800100026 (SOLST) 3 semiconductor detectors,1 for binary fission 3041800100027 fragments,2 for LCP,in coincidence mode with the 3041800100028 Ge(Li) detector. 3041800100029 PART-DET (G,SF) 3041800100030 and light charged particles from ternary fission 3041800100031 HISTORY (19771012C) KO. 3041800100032 (19821207A) ML.bib-section and subent 3 revised 3041800100033 (20040311U) SD: corrected 4-dig. year and lower cases. 3041800100034 (20060314A) added one ref.: 73BANGLO,2,186,1973 3041800100035 ENDBIB 33 0 3041800100036 NOCOMMON 0 0 3041800100037 ENDSUBENT 36 0 3041800199999 SUBENT 30418002 20040715 3041800200001 BIB 7 20 3041800200002 REACTION (98-CF-252(0,F)ELEM/MASS,PAR/IND,FY,G) 3041800200003 Total transition intensities per fission. 3041800200004 MONITOR (98-CF-252(0,F)ELEM/MASS,PAR/IND,FY,G) 3041800200005 MONIT-REF (12691002,E.CHEIFETZ+,J,PR/C,4,1913,1971) 3041800200006 FLAG (1.) 2+ to 0+ ground-state transition. 3041800200007 (2.) 4+ to 2+ transition 3041800200008 (3.) 6+ to 4+ transition 3041800200009 (11.) obtained by assuming the (4+ to 2+)/(2+ to 0+) 3041800200010 intensity ratio to be the same in binary and ternary 3041800200011 fission. 3041800200012 (12.) obtained by subtracting out the (4+ to 2+) 3041800200013 intensity of ce-148. 3041800200014 (13.) obtained by subtracting out the (4+ to 2+) 3041800200015 intensity of 100Zr and the (4+ to 2+) intensity of 3041800200016 106Mo. 3041800200017 (14.) obtained by subtracting out the (4+ to 2+) 3041800200018 intensity of 146Ba. 3041800200019 STATUS Data taken from table 1 of Nucl.Phys.A246(1975)505. 3041800200020 ERR-ANALYS No error given. 3041800200021 HISTORY (20040715A) SD: Reaction code and data units corrected 3041800200022 ENDBIB 20 0 3041800200023 NOCOMMON 0 0 3041800200024 DATA 7 41 3041800200025 ELEMENT MASS E DATA MONIT FLAG 3041800200026 FLAG 3041800200027 NO-DIM NO-DIM KEV PC/FIS PC/FIS NO-DIM 3041800200028 NO-DIM 3041800200029 40. 98. 1223. 0.2 0.3 1. 3041800200030 3041800200031 40. 100. 352.1 1.01 1.26 2. 3041800200032 11. 3041800200033 40. 100. 212.7 1.4 1.8 1. 3041800200034 3041800200035 40. 102. 151.9 2.6 1.43 1. 3041800200036 3041800200037 42. 102. 296.0 0.2 0.46 1. 3041800200038 12. 3041800200039 42. 104. 368.7 1.8 2.49 2. 3041800200040 3041800200041 42. 104. 192.3 3. 3.37 1. 3041800200042 3041800200043 42. 106. 350.8 2.31 2.31 2. 3041800200044 11. 3041800200045 42. 106. 171.7 3.37 3.37 1. 3041800200046 3041800200047 44. 108. 242.3 0.3 1.94 1. 3041800200048 3041800200049 44. 110. 240.8 2. 3.49 1. 3041800200050 3041800200051 44. 112. 236.8 0.3 0.97 1. 3041800200052 3041800200053 46. 112. 348.8 0.1 0.77 1. 3041800200054 13. 3041800200055 46. 114. 332.9 0.5 1.48 1. 3041800200056 14. 3041800200057 46. 116. 340.6 0.5 0.87 1. 3041800200058 3041800200059 52. 134. 1278. 1.9 1.5 1. 3041800200060 3041800200061 52. 134. 297. 1.6 1.3 2. 3041800200062 3041800200063 52. 134. 115. 0.3 1.08 3. 3041800200064 3041800200065 54. 136. 1313. 0.6 0.75 1. 3041800200066 3041800200067 54. 138. 589.5 1.5 2.3 1. 3041800200068 3041800200069 54. 138. 482. 1.1 1.63 2. 3041800200070 3041800200071 54. 140. 457.9 1.6 1.29 2. 3041800200072 3041800200073 54. 140. 376.8 1.9 1.5 1. 3041800200074 11. 3041800200075 56. 142. 475.7 0.7 2.28 2. 3041800200076 3041800200077 56. 142. 359.7 1. 2.9 1. 3041800200078 3041800200079 56. 144. 199.4 3. 3.6 1. 3041800200080 3041800200081 56. 146. 333. 0.9 0.69 2. 3041800200082 11. 3041800200083 56. 146. 181. 1.24 1.01 1. 3041800200084 3041800200085 58. 146. 258.6 0.8 1.04 1. 3041800200086 3041800200087 58. 148. 386.5 1.4 1.2 3. 3041800200088 3041800200089 58. 148. 295.7 1.6 1.84 2. 3041800200090 11. 3041800200091 58. 148. 158.7 1.99 2.31 1. 3041800200092 3041800200093 58. 150. 300.7 0.5 0.7 3. 3041800200094 3041800200095 58. 150. 97.1 0.9 0.98 1. 3041800200096 3041800200097 60. 150. 130.1 0.2 0.15 1. 3041800200098 3041800200099 60. 152. 247.3 0.1 0.35 3. 3041800200100 3041800200101 60. 152. 164.7 0.6 0.51 2. 3041800200102 3041800200103 60. 152. 75.9 1. 0.6 1. 3041800200104 3041800200105 60. 154. 243.7 0.3 0.24 3. 3041800200106 3041800200107 60. 154. 162.4 0.5 0.39 2. 3041800200108 3041800200109 60. 154. 72.8 0.5 0.4 1. 3041800200110 3041800200111 ENDDATA 86 0 3041800200112 ENDSUBENT 111 0 3041800299999 SUBENT 30418003 20040715 3041800300001 BIB 9 25 3041800300002 REACTION 1(98-CF-252(0,F)ELEM,TER,AP) 3041800300003 2(98-CF-252(0,F)ELEM,IND/TER,FY) total element yield 3041800300004 both for post-neutron emission derived from fits to 3041800300005 isotopic independent yield distributions 3041800300006 ANALYSIS Ternary fission independent yields were calculated from3041800300007 the corresponding known binary fission yields (taken 3041800300008 from 'monit-ref') and the measured ternary/binary 3041800300009 ratios of gamma-rays (subentry 2).the isotopic ternary 3041800300010 yield distributions (i.e. with z=const) obtained were 3041800300011 fitted using gaussians.the parameters derived from the 3041800300012 fit are (for each element) 3041800300013 - the width of the distribution 3041800300014 1 - the position of the maximum,which is the most 3041800300015 probable mass 3041800300016 2 - the integral over the distribution,which is the 3041800300017 total yield of a given fission product element 3041800300018 MONITOR (98-CF-252(0,F)ELEM,IND,FY) 3041800300019 elemental yield,given as fraction per binary fission 3041800300020 MONIT-REF (12691002,E.CHEIFETZ+,J,PR/C,4,1913,1971) 3041800300021 MISC-COL (MISC1) Width of the gaussian isotopic distribution 3041800300022 COMMENT 2the yield is given as fraction per ternary fission 3041800300023 STATUS Data taken from table 2 of Nucl.phys.A246(1975)505. 3041800300024 ERR-ANALYS No further information. 3041800300025 HISTORY (20040715A) SD. Units and values of 2nd reaction 3041800300026 modified according to publication 3041800300027 ENDBIB 25 0 3041800300028 NOCOMMON 0 0 3041800300029 DATA 9 8 3041800300030 ELEMENT DATA 1DATA-ERR 1MISC1 MISC1-ERR DATA 23041800300031 DATA-ERR 2MONIT MONIT-ERR 3041800300032 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM PC/FIS 3041800300033 PC/FIS PC/FIS PC/FIS 3041800300034 40. 101.5 0.5 1.3 0.4 9.1 3041800300035 2.2 7.38 0.52 3041800300036 42. 105.1 0.1 1.2 0.2 13.8 3041800300037 1.2 15.36 1.3 3041800300038 44. 110. 0.3 1.0 0.2 5.2 3041800300039 0.8 11.86 0.85 3041800300040 46. 115.1 0.8 1.7 0.6 2.5 3041800300041 0.9 6.83 0.73 3041800300042 54. 139.9 0.6 2.6 0.6 12.5 3041800300043 2.4 9.63 0.7 3041800300044 56. 144.1 0.3 1.4 0.4 10.7 3041800300045 1.7 16.23 0.7 3041800300046 58. 148.1 0.3 1.5 0.3 7.7 3041800300047 1.3 9.2 0.68 3041800300048 60. 152.4 0.4 1.2 0.4 2.4 3041800300049 0.7 2.4 0.26 3041800300050 ENDDATA 20 0 3041800300051 ENDSUBENT 50 0 3041800399999 ENDENTRY 3 0 3041899999999