ENTRY C0241 19980312 0000C024100000001 SUBENT C0241001 19980312 0000C024100100001 BIB 11 24 C024100100002 INSTITUTE (3INDTRM) C024100100003 REFERENCE (J,PRL,58,1520,1987) C024100100004 AUTHOR (N.N.AJITANAND,K.N.IYENGAR,R.P.ANAND,D.M.NADKARNI, C024100100005 A.K.MOHANTY) C024100100006 TITLE Anomalous behavior of the proton-induced fission C024100100007 cross sections of 235U and 238U at extreme sub-barrierC024100100008 energies C024100100009 FACILITY (VDG) C024100100010 METHOD (BCINT) C024100100011 DETECTOR (TRD) C024100100012 ANALYSIS Sources of background taken into account: C024100100013 1) fission caused in the target by neutrons, C024100100014 2) fissionlike tracks produced in SSTR A because of C024100100015 the high rate of incidence of scattered protons, C024100100016 3) fission caused in fissionable impurities located C024100100017 in the vicinity of SSTR by neutrons or through C024100100018 spontaneous fission, C024100100019 4) spontaneous fission in the target and the natural C024100100020 background of fission tracks in the detector. C024100100021 ERR-ANALYS (DATA-ERR) Systematic uncertainty C024100100022 STATUS Data taken from Phys.Rev.Lett. 58, 1520 (1987) Table I.C024100100023 (APRVD) Approved by N.N.Ajitanand, 1987/6/24. C024100100024 HISTORY (19870506C) C024100100025 (19980312A) BIB update. C024100100026 ENDBIB 24 0 C024100100027 COMMON 1 3 C024100100028 DATA-ERR C024100100029 PER-CENT C024100100030 20. C024100100031 ENDCOMMON 3 0 C024100100032 ENDSUBENT 31 0 C024100199999 SUBENT C0241002 19980312 0000C024100200001 BIB 2 3 C024100200002 REACTION (92-U-235(P,F),,SIG) C024100200003 SAMPLE 235U targets enriched to 94%, thicknesses 460, 420 C024100200004 micro-g/cm2. C024100200005 ENDBIB 3 0 C024100200006 NOCOMMON 0 0 C024100200007 DATA 2 7 C024100200008 EN DATA C024100200009 MEV NB C024100200010 1.0 0.3 C024100200011 1.5 0.9 C024100200012 2.0 1.8 C024100200013 2.5 2.7 C024100200014 3.0 7.0 C024100200015 3.5 13.2 C024100200016 4.0 38.7 C024100200017 ENDDATA 9 0 C024100200018 ENDSUBENT 17 0 C024100299999 SUBENT C0241003 19980312 0000C024100300001 BIB 2 3 C024100300002 REACTION (92-U-238(P,F),,SIG) C024100300003 SAMPLE 238U targets were of natural uranium, target C024100300004 thicknesses were 380, 250 micro-g/cm2. C024100300005 ENDBIB 3 0 C024100300006 NOCOMMON 0 0 C024100300007 DATA 2 8 C024100300008 EN DATA C024100300009 MEV NB C024100300010 1.0 0.5 C024100300011 1.5 1.0 C024100300012 2.0 0.3 C024100300013 2.5 0.3 C024100300014 3.0 2.0 C024100300015 3.5 1.1 C024100300016 4.0 24.7 C024100300017 4.3 72.3 C024100300018 ENDDATA 10 0 C024100300019 ENDSUBENT 18 0 C024100399999 ENDENTRY 3 0 C024199999999