ENTRY 22898 20201016 22942289800000001 SUBENT 22898001 20201016 22942289800100001 BIB 12 34 2289800100002 TITLE Influence of multichance fission on fragment angular 2289800100003 anisotropy in the 232Th(n,f) and 238U(n,f) reactions 2289800100004 at intermediate energies 2289800100005 AUTHOR (I.V.Ryzhov, M.S.Onegin, G.A.Tutin, J.Blomgren, 2289800100006 N.Olsson, A.V.Prokofiev, P.-U.Renberg) 2289800100007 REFERENCE (J,NP/A,760,19,2005) Main reference, data are given 2289800100008 #doi:10.1016/j.nuclphysa.2005.06.003 2289800100009 (J,NIM/A,457,646,2001) Description of the experimental 2289800100010 arrangements 2289800100011 (C,97TRIEST,,658,1997) Preliminary results 2289800100012 INSTITUTE (2SWDUPP) Olsson, Blomgren - Department of neutron 2289800100013 research 2289800100014 Prokofiev, Renberg - The Swedberg Laboratory2289800100015 (2SWDFOI) Olsson 2289800100016 (4RUSRI ) Ryzhov, Tutin, Prokofiev 2289800100017 (4RUSLIN) Onegin 2289800100018 FACILITY (CYCLO,2SWDUPP) Gustaf Werner proton cyclotron 2289800100019 of the Swedberg Laboratory 2289800100020 INC-SOURCE (P-LI7) 427 mg/cm2 thick lithium target enriched to 2289800100021 99.98% by Li-7. Pulsed proton beam 13 - 25 MHz 2289800100022 repetition rate 2289800100023 DETECTOR (FISCH) Frish-gridded fission chamber, 2289800100024 details in J,NIM/A,457,646,2001 2289800100025 (TFBC) For neutron flux monitoring 2289800100026 METHOD (TOF) 2289800100027 (STTA) Fission targets were deposited back-to-back 2289800100028 in a common cathode within a circle of 78 mm diam. 2289800100029 MONITOR No information 2289800100030 CORRECTION For energy loss in the subsequent targets 2289800100031 ERR-ANALYS (DATA-ERR) No information about source of uncertainty 2289800100032 HISTORY (20060105C) S.M. 2289800100033 (20100720A) Correction of reaction (003) 2289800100034 and data headings (002,003) 2289800100035 (20201016A) SD: Corrections in all Subents. 2289800100036 ENDBIB 34 0 2289800100037 COMMON 1 3 2289800100038 ANG 2289800100039 ADEG 2289800100040 0. 2289800100041 ENDCOMMON 3 0 2289800100042 ENDSUBENT 41 0 2289800199999 SUBENT 22898002 20201016 22942289800200001 BIB 5 12 2289800200002 REACTION (90-TH-232(N,F),,DA,FF,RSD/MSC) 2289800200003 W(0.degr.)/W(90.degr.)-1 2289800200004 ANALYSIS The anisotropy factor was deduced as the average of 2289800200005 the ones obtained for the two orientations 2289800200006 of the chamber. 2289800200007 SAMPLE Thorium oxide Th-O2, thickness 0.49 mg/cm2 2289800200008 STATUS (TABLE) Data from Table 1 of Nucl.Phys.,A760(2005)19 2289800200009 HISTORY (20100720A) Data heading corrected: 2289800200010 EN-CM -> EN and DATA -> DATA-CM 2289800200011 (20201016A) SD: SF5=PRE deleted (fragment mass not 2289800200012 specified); SF8=RSD -> RSD/MSC in REACTION code. 2289800200013 STATUS updated. 2289800200014 ENDBIB 12 0 2289800200015 NOCOMMON 0 0 2289800200016 DATA 3 5 2289800200017 EN DATA-CM DATA-ERR 2289800200018 MEV NO-DIM NO-DIM 2289800200019 21. 0.57 0.16 2289800200020 35. 0.53 0.07 2289800200021 46. 0.63 0.08 2289800200022 66. 0.53 0.09 2289800200023 95. 0.35 0.09 2289800200024 ENDDATA 7 0 2289800200025 ENDSUBENT 24 0 2289800299999 SUBENT 22898003 20201016 22942289800300001 BIB 6 13 2289800300002 REACTION (92-U-238(N,F),,DA,FF,RSD/MSC) 2289800300003 W(0.degr.)/W(90.degr.)-1 2289800300004 ANALYSIS The anisotropy factor was deduced as the average of 2289800300005 the ones obtained for the two orientations 2289800300006 of the chamber. 2289800300007 SAMPLE Uranium oxide (Unat)3-O8, thickness 0.42 mg/cm2 2289800300008 FLAG (1.) From C,97TRIEST,,658,1997 2289800300009 STATUS (TABLE) Data from Table 1 of Nucl.Phys.,A760(2005)19 2289800300010 HISTORY (20100720A) Correction of Reaction (232U -> 238U) 2289800300011 and Data heading (EN-CM -> EN and DATA -> DATA-CM) 2289800300012 (20201016A) SD: SF5=PRE deleted (fragment mass not 2289800300013 specified); SF8=RSD -> RSD/MSC in REACTION code. 2289800300014 STATUS updated. 2289800300015 ENDBIB 13 0 2289800300016 NOCOMMON 0 0 2289800300017 DATA 4 6 2289800300018 EN DATA-CM DATA-ERR FLAG 2289800300019 MEV NO-DIM NO-DIM NO-DIM 2289800300020 21. 0.56 0.13 2289800300021 35. 0.30 0.06 2289800300022 46. 0.41 0.06 2289800300023 66. 0.29 0.06 2289800300024 75. 0.21 0.07 1. 2289800300025 95. 0.22 0.06 2289800300026 ENDDATA 8 0 2289800300027 ENDSUBENT 26 0 2289800399999 ENDENTRY 3 0 2289899999999