ENTRY 20585 20190117 22742058500000001 SUBENT 20585001 20190117 22742058500100001 BIB 17 38 2058500100002 TITLE Ratio of the ternary-to-binary fission cross sections 2058500100003 induced by thermal and resonance neutrons in Pu-241 2058500100004 AUTHOR (C.Wagemans,A.J.Deruytter) 2058500100005 INSTITUTE (2ZZZGEL) 2058500100006 REFERENCE (J,NP/A,234,285,1974) Numerical data. 2058500100007 REL-REF (I,20384001,C.Wagemans+,J,NP/A,212,556,1973) Experim. 2058500100008 device described. 2058500100009 FACILITY (LINAC,2ZZZGEL) 70 MeV electron Linac of 2058500100010 the CBNM at Geel. 2058500100011 INC-SOURCE (PHOTO) Fast neutron produced by bombarding 2058500100012 uranium target with the 70 MeV electron beam. 2058500100013 Thermal and resonance neutrons produced by slowing 2058500100014 down in two 4 cm thick polyethylene disks. 2058500100015 SAMPLE Pu 241 acetate layer sprayed on a 0.2 mm Al disk. 2058500100016 Thickness 1.08 milli-g/cm2,diameter 60 mm. 2058500100017 Isotopic composition in atoms percent. 2058500100018 0.011 Of Pu238, 1.046 of Pu239, 3.657 of Pu240, 2058500100019 93.432 of Pu241, 1.854 of Pu242. 2058500100020 METHOD (TOF) 8.1 m flight path. 2058500100021 DETECTOR (SIBAR) Four large(6.cm**2) Si-Au surface-barrier 2058500100022 detectors. Aluminium screens of different thickness 2058500100023 inserted between sample and detectors for ternary 2058500100024 fission measurements. 2058500100025 ANALYSIS Ratio ternary to binary of the areas under the 2058500100026 strongest resonances were calculated. 2058500100027 PART-DET (FF) Fission fragments for binary fissions. 2058500100028 (A) Alphas for ternary fissions. 2058500100029 COMMENT Correlations between the T/B values and the spin 2058500100030 of the resonances are made in terms of the 2058500100031 channel theory of fission. 2058500100032 CORRECTION .Background, influence of Pu239 and Am241 estimated 2058500100033 as negligible. 2058500100034 ERR-ANALYS (ERR-S) Only statistical errors given. 2058500100035 STATUS (TABLE) table 2 and 4 of Nucl.Phys.,A234(1974)285. 2058500100036 HISTORY (19760719C) 2058500100037 (20190117A) SD:Updated to new date formats,lower case. 2058500100038 REACTION code in Subent 002 corrected according to 2058500100039 MEMO CP-D/969. MONITOR deleted (info moved to REACTION)2058500100040 ENDBIB 38 0 2058500100041 NOCOMMON 0 0 2058500100042 ENDSUBENT 41 0 2058500199999 SUBENT 20585002 20190117 22742058500200001 BIB 3 11 2058500200002 REACTION (94-PU-241(N,F)2-HE-4,TER,FY,,RES/REL) 2058500200003 Alpha-particle accompanied ternary fissions. 2058500200004 Ternary to binary fission ratios are normalized to the2058500200005 value 100 for the 10.95 eV resonance. 2058500200006 COMMENT Data-heading keyword EN-RES denotes resonance 2058500200007 energy or middle of energy interval, no details 2058500200008 given in reference. 2058500200009 HISTORY (20190117A) SD: SF4=He-4 added; SF5=TER/BIN -> TER; 2058500200010 SF6=FY/RAT -> FY; SF8=RES -> RES/REL in REACTION code.2058500200011 Units in DATA and DATA-ERR changed (NO-DIM->ARB-UNITS) 2058500200012 DATA-ERR -> ERR-S. 2058500200013 ENDBIB 11 0 2058500200014 NOCOMMON 0 0 2058500200015 DATA 3 44 2058500200016 EN-RES DATA ERR-S 2058500200017 EV ARB-UNITS ARB-UNITS 2058500200018 0.0176 103.3 6. 2058500200019 0.0212 98.1 5.3 2058500200020 0.0246 97.9 6.8 2058500200021 0.0274 98.6 6.3 2058500200022 0.0306 82.5 6.3 2058500200023 0.0344 92.4 5.6 2058500200024 0.0390 94.9 5.1 2058500200025 0.0446 89.4 5. 2058500200026 0.0515 89.7 4.7 2058500200027 0.060 109.3 4.1 2058500200028 0.071 103. 4.1 2058500200029 0.085 94.7 4.2 2058500200030 0.104 94.5 4.3 2058500200031 0.131 96.1 4.3 2058500200032 0.168 99.1 4.1 2058500200033 0.224 100.6 3.3 2058500200034 0.260 100.8 2.4 2058500200035 0.315 98.1 4.5 2058500200036 0.472 117. 13. 2058500200037 4.30 93.6 1.6 2058500200038 4.58 99.7 2.1 2058500200039 5.92 100. 1.1 2058500200040 6.93 98.4 1.5 2058500200041 8.6 97.2 2. 2058500200042 9.5 97.4 2.7 2058500200043 10.1 102.1 2.3 2058500200044 12.78 95.2 3.7 2058500200045 13.40 93.5 2.6 2058500200046 14.75 100.2 1.4 2058500200047 16. 103.2 3.2 2058500200048 16.7 102.8 3.3 2058500200049 17.83 101.6 3.6 2058500200050 23. 102.6 5.9 2058500200051 24. 101.9 4.8 2058500200052 26.4 100.9 3.3 2058500200053 28.8 93.8 3.3 2058500200054 30.9 99.6 5. 2058500200055 38.2 117. 11. 2058500200056 39.3 105.1 5.5 2058500200057 40.8 108.1 8.3 2058500200058 42.7 115.6 12.5 2058500200059 46.7 96. 8.5 2058500200060 48.2 99.3 5. 2058500200061 50.2 109.4 12. 2058500200062 ENDDATA 46 0 2058500200063 ENDSUBENT 62 0 2058500299999 ENDENTRY 2 0 2058599999999