ENTRY A0524 20030919 20040322 A052400000001 SUBENT A0524001 20030919 20040322 A052400100001 BIB 13 42 A052400100002 TITLE Possible influence of neutron shell closure (N=126) on A052400100003 fission anisotropies for 19F+194,198Pt systems A052400100004 AUTHOR (K.Mahata, S.Kailas, A.Shrivastava, A.Chatterjee, A052400100005 P.Singh, S.Santra, B.S.Tomar) A052400100006 INSTITUTE (3INDTRM) Nuclear physics and radiochemistry divisionsA052400100007 REFERENCE (J,PR/C,65,034613,200202) A052400100008 REL-REF (R,,V.E.VIOLA+,J,PR/C,31,1550,1985) A052400100009 It is systematic for symmetric fission A052400100010 (N,A0525001,A.SHRIVASTAVA+,J,PRL,82,699,1999) A052400100011 Data for 12-C + 194, 198-Pt A052400100012 FACILITY (VDGT,3INDTRM) The BARC-TIFR 14 UD Pelletron A052400100013 SAMPLE Self-supporting rolled foils of 194-Pt (97.4% enriched,A052400100014 1 mg/cm**2 thick) and 198-Pt (95.7% enriched, 1.3 A052400100015 mg/cm**2 thick). A052400100016 METHOD (EDE) Two DE-E telescopes consisting of Si surface A052400100017 barrier detectors (thicknesses DE ~10-15 mumeters, A052400100018 E-300 mumeters) were used to detect the fission A052400100019 fragments. A052400100020 Most of the fission fragments are stopped in DE A052400100021 detector while fragments reaching the E detector were A052400100022 well separated from the direct reaction products and A052400100023 evaporated particles in the two dimensional E vs A052400100024 DE plot. A052400100025 (SITA) See SAMPLE A052400100026 (GSPEC) For evaporation residuals A052400100027 DETECTOR (TELES,SIBAR,SIBAR) To detect fission fragments. See A052400100028 METHOD. A052400100029 (SIBAR) Two Si surface barrier detectors, kept at 35 A052400100030 and 55 degrees to monitor Rutherford scattering, were A052400100031 used for absolute normalization of fission cross A052400100032 sections. A052400100033 ANALYSIS The measured fission fragment angular distributions A052400100034 were transformed to the center-of-mass system assuming A052400100035 Viola's systematics for symmetric fission. A052400100036 MONITOR (78-PT-194(9-F-19,EL)78-PT-194,,DA) A052400100037 (78-PT-198(9-F-19,EL)78-PT-198,,DA) A052400100038 The cross sections were assumed as Rutherford ones. A052400100039 HISTORY (20030625C) A052400100040 (20030728R) Corrected data for fission fragment angularA052400100041 distributions are received from K.Mahata A052400100042 (20030919U) Last checking has been done. A052400100043 ADD-RES Fission probability A052400100044 ENDBIB 42 0 A052400100045 NOCOMMON 0 0 A052400100046 ENDSUBENT 45 0 A052400199999 SUBENT A0524002 20030919 20040322 A052400200001 BIB 3 3 A052400200002 REACTION (78-PT-194(9-F-19,F),,DA,,RSD) A052400200003 PART-DET (FF) A052400200004 ERR-ANALYS (DATA-ERR) Noany analysis is presented A052400200005 ENDBIB 3 0 A052400200006 COMMON 1 3 A052400200007 ANG-CM A052400200008 ADEG A052400200009 180. A052400200010 ENDCOMMON 3 0 A052400200011 DATA 3 7 A052400200012 EN DATA-CM DATA-ERR A052400200013 MEV NO-DIM NO-DIM A052400200014 88.6 2.19 0.12 A052400200015 90.6 2.13 0.12 A052400200016 92.6 2.35 0.14 A052400200017 94.6 2.86 0.24 A052400200018 96.6 2.99 0.15 A052400200019 101.6 2.82 0.12 A052400200020 103.6 3.12 0.12 A052400200021 ENDDATA 9 0 A052400200022 ENDSUBENT 21 0 A052400299999 SUBENT A0524003 20030919 20040322 A052400300001 BIB 3 3 A052400300002 REACTION (78-PT-198(9-F-19,F),,DA,,RSD) A052400300003 PART-DET (FF) A052400300004 ERR-ANALYS (DATA-ERR) Noany analysis is presented A052400300005 ENDBIB 3 0 A052400300006 COMMON 1 3 A052400300007 ANG-CM A052400300008 ADEG A052400300009 180. A052400300010 ENDCOMMON 3 0 A052400300011 DATA 3 7 A052400300012 EN DATA-CM DATA-ERR A052400300013 MEV NO-DIM NO-DIM A052400300014 88.1 1.91 0.12 A052400300015 90.1 2.1 0.12 A052400300016 92.1 2.42 0.11 A052400300017 94.1 2.63 0.18 A052400300018 96.1 2.88 0.12 A052400300019 101.1 3.11 0.12 A052400300020 103.1 3.53 0.14 A052400300021 ENDDATA 9 0 A052400300022 ENDSUBENT 21 0 A052400399999 SUBENT A0524004 20030919 20040322 A052400400001 BIB 4 9 A052400400002 REACTION (78-PT-194(9-F-19,F),,SIG) A052400400003 PART-DET (FF) A052400400004 ERR-ANALYS (DATA-ERR) Noany analysis is presented A052400400005 MISC-COL (MISC) The cross section for evaporation residual A052400400006 production A052400400007 (MISC-ERR) The overall error on evaporation residual A052400400008 cross section is estimated to be about 10%, consisting A052400400009 of uncertainties in gamma branching ratio and detector A052400400010 efficiency in addition to counting statistics. A052400400011 ENDBIB 9 0 A052400400012 NOCOMMON 0 0 A052400400013 DATA 5 6 A052400400014 EN DATA DATA-ERR MISC MISC-ERR A052400400015 MEV MB MB MB MB A052400400016 88.6 35.5 2.5 A052400400017 90.6 72.8 5.1 42.8 4. A052400400018 92.6 113. 6. A052400400019 94.6 161. 10. A052400400020 96.6 225. 13. 87.5 9. A052400400021 103.6 498. 25. 42.3 5. A052400400022 ENDDATA 8 0 A052400400023 ENDSUBENT 22 0 A052400499999 SUBENT A0524005 20030919 20040322 A052400500001 BIB 4 9 A052400500002 REACTION (78-PT-198(9-F-19,F),,SIG) A052400500003 PART-DET (FF) A052400500004 ERR-ANALYS (DATA-ERR) Noany analysis is presented A052400500005 MISC-COL (MISC) The cross section for evaporation residual A052400500006 production A052400500007 (MISC-ERR) The overall error on evaporation residual A052400500008 cross section is estimated to be about 10%, consisting A052400500009 of uncertainties in gamma branching ratio and detector A052400500010 efficiency in addition to counting statistics. A052400500011 ENDBIB 9 0 A052400500012 NOCOMMON 0 0 A052400500013 DATA 5 6 A052400500014 EN DATA DATA-ERR MISC MISC-ERR A052400500015 MEV MB MB MB MB A052400500016 88.1 19. 1.5 A052400500017 90.1 41.4 3. 67.5 7. A052400500018 92.1 68.3 4.1 A052400500019 94.1 101. 6. A052400500020 96.1 140. 8. 158. 16. A052400500021 103.1 335. 17. 205. 20. A052400500022 ENDDATA 8 0 A052400500023 ENDSUBENT 22 0 A052400599999 SUBENT A0524006 20030919 20040322 A052400600001 BIB 4 6 A052400600002 REACTION (78-PT-194(9-F-19,F),,DA,,REL) A052400600003 PART-DET (FF) A052400600004 STATUS (CURVE) By CAJAD. A052400600005 ERR-ANALYS (ANG-ERR) Data point reader uncertainty. A052400600006 (ERR-T) The uncertainty is shown on figure A052400600007 (DATA-ERR) Symbol size on figure A052400600008 ENDBIB 6 0 A052400600009 COMMON 3 3 A052400600010 EN ANG-ERR DATA-ERR A052400600011 MEV ADEG ARB-UNITS A052400600012 94.6 0.3 0.001 A052400600013 ENDCOMMON 3 0 A052400600014 DATA 3 6 A052400600015 ANG-CM DATA ERR-T A052400600016 ADEG ARB-UNITS ARB-UNITS A052400600017 93.2 0.0387 6.38E-4 A052400600018 113.2 0.0426 6.17E-4 A052400600019 131.5 0.0546 8.92E-4 A052400600020 148.5 0.0735 9.71E-4 A052400600021 156.6 0.0862 1.66E-3 A052400600022 172.3 0.107 1.73E-3 A052400600023 ENDDATA 8 0 A052400600024 ENDSUBENT 23 0 A052400699999 SUBENT A0524007 20030919 20040322 A052400700001 BIB 4 5 A052400700002 REACTION (78-PT-198(9-F-19,F),,DA,,REL) A052400700003 PART-DET (FF) A052400700004 STATUS (CURVE) By CAJAD. A052400700005 ERR-ANALYS (ANG-ERR) Data point reader uncertainty. A052400700006 (ERR-T) The uncertainty is shown on figure A052400700007 ENDBIB 5 0 A052400700008 COMMON 2 3 A052400700009 EN ANG-ERR A052400700010 MEV ADEG A052400700011 94.1 0.3 A052400700012 ENDCOMMON 3 0 A052400700013 DATA 3 6 A052400700014 ANG-CM DATA ERR-T A052400700015 ADEG ARB-UNITS ARB-UNITS A052400700016 93. 0.0251 5.62E-4 A052400700017 113. 0.0283 5.49E-4 A052400700018 131.4 0.0315 6.31E-4 A052400700019 148.5 0.0447 7.12E-4 A052400700020 156.5 0.051 1.35E-3 A052400700021 172.3 0.0629 1.3E-3 A052400700022 ENDDATA 8 0 A052400700023 ENDSUBENT 22 0 A052400799999 ENDENTRY 7 0 A052499999999