ENTRY 30548 20090505 31373054800000001 SUBENT 30548001 20090505 31373054800100001 BIB 15 48 3054800100002 INSTITUTE (3PAKNIL) 3054800100003 REFERENCE (J,NIM,173,137,1980) Exp.method,results for Pu-240,241 3054800100004 (J,NIM,173,163,1980) Results for Pu-242,244,Am241 3054800100005 (C,79LYON,,905,1979) Pu-240,241 3054800100006 (P,INDC(PAK)-2,1,1980) Results for Pu-240,241,242,244, 3054800100007 Am-241. Abstract only 3054800100008 AUTHOR (N.A.Khan,H.A.Khan,K.Gul,R.A.Akber,M.Anwar, 3054800100009 A.Waheed,G.Hussain,M.S.Shaikh) 3054800100010 TITLE -Measurements of fission cross-section of Pu-240 3054800100011 Pu-241,Pu-242,Pu-244 and Am-241 with 14.8 MeV neutrons-3054800100012 FACILITY (CCW,3PAKNIL) 3054800100013 INC-SOURCE (D-T) 3054800100014 SAMPLE Enriched samples 3054800100015 Isotope Thickness Isotopic composition (%) 3054800100016 mg/cm2 3054800100017 Pu-240 81. Pu-240 98.3, Pu-238 0.008, 3054800100018 Pu-239 0.762, Pu-241 0.764, 3054800100019 Pu-242 0.171 3054800100020 Pu-241 78. Pu-241 98.3, Pu-238 0.007, 3054800100021 Pu-239 0.795, Pu-240 0.208, 3054800100022 Pu-242 0.096, Pu-244 0.002 3054800100023 Pu-242 130. Pu-242 99.736, Pu-241 0.138, 3054800100024 Pu-240 0.115 3054800100025 Pu-244 44.6 Pu-244 97.8, Pu-242 1.347, 3054800100026 Pu-241 0.119, Pu-240 0.7 3054800100027 Am-241 0.01 3054800100028 Pu-239 100.5 Pu-239 100.0 3054800100029 (standard) 3054800100030 METHOD The measurements were done in 2pi geometry by means 3054800100031 of registration of tracks from fission fragments in 3054800100032 Mica solid state detector 3054800100033 DETECTOR (TRD) Mica solid state nuclear track detector 3054800100034 MONITOR (94-PU-239(N,F),,SIG) 3054800100035 MONIT-REF (21195007,P.H.White+,J,JNE,21,671,1967) 3054800100036 ADD-RES (DECAY) Spontaneous fission half lives were measured. 3054800100037 The obtained values are equal (in years): 3054800100038 T(1/2)=1.46E+11 for Pu-240 3054800100039 T(1/2)=1.12E+11 for Pu-241 3054800100040 T(1/2)=1.43E+10 for Pu-242 3054800100041 T(1/2)=1.32E+10 for Pu-244 3054800100042 ERR-ANALYS (DATA-ERR) No information 3054800100043 STATUS (TABLE) Data taken from Table II of journal Nucl.Instr.3054800100044 and Meth.173, p.141 and p.165. 3054800100045 HISTORY (19800923C) VP. 3054800100046 (19810317A) OS. Subentries 4-6 and ref.added 3054800100047 (19810811A) OS. Bib revision(combined with entry 30555)3054800100048 (20090503A) SD:Updated to new date formats,lower case, 3054800100049 made formal corrections. 3054800100050 ENDBIB 48 0 3054800100051 COMMON 3 3 3054800100052 EN MONIT MONIT-ERR 3054800100053 MEV B B 3054800100054 1.4800E+01 2.5200E+00 8.0000E-02 3054800100055 ENDCOMMON 3 0 3054800100056 ENDSUBENT 55 0 3054800199999 SUBENT 30548002 20090505 31373054800200001 BIB 1 1 3054800200002 REACTION (94-PU-240(N,F),,SIG) 3054800200003 ENDBIB 1 0 3054800200004 NOCOMMON 0 0 3054800200005 DATA 2 1 3054800200006 DATA DATA-ERR 3054800200007 B B 3054800200008 2.0600E+00 2.1000E-01 3054800200009 ENDDATA 3 0 3054800200010 ENDSUBENT 9 0 3054800299999 SUBENT 30548003 20090505 31373054800300001 BIB 1 1 3054800300002 REACTION (94-PU-241(N,F),,SIG) 3054800300003 ENDBIB 1 0 3054800300004 NOCOMMON 0 0 3054800300005 DATA 2 1 3054800300006 DATA DATA-ERR 3054800300007 B B 3054800300008 1.8400E+00 1.9000E-01 3054800300009 ENDDATA 3 0 3054800300010 ENDSUBENT 9 0 3054800399999 SUBENT 30548004 20090505 31373054800400001 BIB 1 1 3054800400002 REACTION (94-PU-242(N,F),,SIG) 3054800400003 ENDBIB 1 0 3054800400004 NOCOMMON 0 0 3054800400005 DATA 2 1 3054800400006 DATA DATA-ERR 3054800400007 B B 3054800400008 1.3700E+00 1.4000E-01 3054800400009 ENDDATA 3 0 3054800400010 ENDSUBENT 9 0 3054800499999 SUBENT 30548005 20090505 31373054800500001 BIB 1 1 3054800500002 REACTION (94-PU-244(N,F),,SIG) 3054800500003 ENDBIB 1 0 3054800500004 NOCOMMON 0 0 3054800500005 DATA 2 1 3054800500006 DATA DATA-ERR 3054800500007 B B 3054800500008 9.1000E-01 9.0000E-02 3054800500009 ENDDATA 3 0 3054800500010 ENDSUBENT 9 0 3054800599999 SUBENT 30548006 20090505 31373054800600001 BIB 1 1 3054800600002 REACTION (95-AM-241(N,F),,SIG) 3054800600003 ENDBIB 1 0 3054800600004 NOCOMMON 0 0 3054800600005 DATA 2 1 3054800600006 DATA DATA-ERR 3054800600007 B B 3054800600008 3.6800E+00 8.0000E-01 3054800600009 ENDDATA 3 0 3054800600010 ENDSUBENT 9 0 3054800699999 ENDENTRY 6 0 3054899999999