ENTRY C2305 20180523 C176C230500000001 SUBENT C2305001 20180523 C176C230500100001 BIB 8 15 C230500100002 TITLE Considerations on the Probability of Nuclear Fission C230500100003 AUTHOR (R.Vandenbosch,G.T.Seaborg) C230500100004 REFERENCE (J,PR,110,507,1958) C230500100005 #doi:10.1103/PhysRev.110.507 C230500100006 INSTITUTE (1USABRK,1USAUCX) C230500100007 FACILITY (CYCLO,1USABRK) The Crocker Laboratory 60-inch C230500100008 cyclotron. C230500100009 DETECTOR (IOCH) The amounts of the various alpha-emitting C230500100010 products were determined by use of 52%-geometry C230500100011 ionization counters and multichannel C230500100012 alpha-pulse-height analyzers. C230500100013 ERR-ANALYS (DATA-ERR) The errors are due principally to C230500100014 uncertainties in determining the amount of target C230500100015 material which was bombarded. C230500100016 HISTORY (20180523C) BP C230500100017 ENDBIB 15 0 C230500100018 NOCOMMON 0 0 C230500100019 ENDSUBENT 18 0 C230500199999 SUBENT C2305002 20180523 C176C230500200001 BIB 4 10 C230500200002 REACTION (88-RA-226(A,X)90-TH-226,CUM,SIG) C230500200003 SAMPLE The radium used was isotopically pure Ra226. The C230500200004 targets were prepared by electrodeposition of the C230500200005 various materials onto gold or aluminum foils. C230500200006 METHOD (REC,CHSEP,ACTIV) The radium targets were dissolved C230500200007 after each bombardment and plutonium and thorium C230500200008 fractions, respectively, were isolated C230500200009 radiochemically. A recoil technique was used for the C230500200010 thorium cross-section measurements. C230500200011 STATUS (TABLE) Table II, page 509. C230500200012 ENDBIB 10 0 C230500200013 NOCOMMON 0 0 C230500200014 DATA 3 8 C230500200015 EN DATA DATA-ERR C230500200016 MEV MB MB C230500200017 35.6 110.0 20.0 C230500200018 38.2 270.0 50.0 C230500200019 39.4 260.0 50.0 C230500200020 39.4 380.0 80.0 C230500200021 40.8 500.0 100.0 C230500200022 42.7 420.0 80.0 C230500200023 44.7 490.0 100.0 C230500200024 45.5 200.0 40.0 C230500200025 ENDDATA 10 0 C230500200026 ENDSUBENT 25 0 C230500299999 SUBENT C2305003 20180523 C176C230500300001 BIB 6 9 C230500300002 REACTION (90-TH-230(A,X)92-U-230,CUM,SIG) C230500300003 SAMPLE (90-TH-230,ENR=0.8785) C230500300004 (90-TH-232,ENR=0.1222) The targets were prepared by C230500300005 electrodeposition of the various materials onto gold C230500300006 or aluminum foils. C230500300007 METHOD (CHSEP,ACTIV) C230500300008 MONITOR (94-PU-239(A,3N)96-CM-240,,SIG) C230500300009 MONIT-REF ((MONIT)C2296001,R.A.Glass+,J,PR,104,434,1956) C230500300010 STATUS (TABLE) Table III, page 510. C230500300011 ENDBIB 9 0 C230500300012 NOCOMMON 0 0 C230500300013 DATA 3 6 C230500300014 EN DATA DATA-ERR C230500300015 MEV MB MB C230500300016 38.0 2.8 0.2 C230500300017 40.0 10.2 0.7 C230500300018 41.2 12.5 0.9 C230500300019 42.6 12.9 0.9 C230500300020 43.3 12.2 0.8 C230500300021 44.2 11.5 0.8 C230500300022 ENDDATA 8 0 C230500300023 ENDSUBENT 22 0 C230500399999 SUBENT C2305004 20180523 C176C230500400001 BIB 4 11 C230500400002 REACTION (92-U-236(A,X)94-PU-236,CUM,SIG) C230500400003 SAMPLE (92-U-236,ENR=0.949) C230500400004 (92-U-234,ENR=0.0004) C230500400005 (92-U-235,ENR=0.0452) C230500400006 (92-U-238,ENR=0.0054) The targets were prepared by C230500400007 electrodeposition of the various materials onto gold C230500400008 or aluminum foils. C230500400009 METHOD (CHSEP,ACTIV) The uranium targets were dissolved C230500400010 after each bombardment and plutonium and thorium C230500400011 fractions, respectively, were isolated radiochemically.C230500400012 STATUS (TABLE) Table IV, page 510. C230500400013 ENDBIB 11 0 C230500400014 NOCOMMON 0 0 C230500400015 DATA 3 4 C230500400016 EN DATA DATA-ERR C230500400017 MEV MB MB C230500400018 34.5 0.11 0.1 C230500400019 38.4 2.0 0.2 C230500400020 42.0 4.1 0.4 C230500400021 45.6 3.6 0.4 C230500400022 ENDDATA 6 0 C230500400023 ENDSUBENT 22 0 C230500499999 ENDENTRY 4 0 C230599999999