ENTRY C2885 20230112 C227C2885000 1 SUBENT C2885001 20230112 C227C2885001 1 BIB 10 43 C2885001 2 TITLE Deuteron-induced Spallation and Fission Reactions in C2885001 3 Plutonium Isotopes C2885001 4 AUTHOR (E.V.Luoma) C2885001 5 REFERENCE (R,UCRL-3495,1956) C2885001 6 INSTITUTE (1USAUCX) C2885001 7 FACILITY (CYCLO,1USABRK) Berkeley 60-inch cyclotron. C2885001 8 DETECTOR (IOCH,GEMUC,PROPC) An argon-filled ionization chamber C2885001 9 attached to a scaling circuit was used for gross C2885001 10 alpha counting of tracers and plutonium assays. This C2885001 11 instrument has a counting efficiency of 52% for thin C2885001 12 samples. All the fission products were beta-particle C2885001 13 emitters and counted on a Geiger-Muller counter. The C2885001 14 counting unit used was an end window Amperex 100 C C2885001 15 tube filled with a mixture of chlorine and argon. C2885001 16 Isotopes decaying by electron capture were counted in C2885001 17 a Nucleometer. This instrument contains a methane C2885001 18 flow-type windowless proportional counter. C2885001 19 METHOD (CHSEP) Extensive chemical procedures are necessary C2885001 20 because of the many possible reactions induced in the C2885001 21 target material Itself and in the aluminum backing C2885001 22 plate. Because of the small amount of valuable target C2885001 23 material available and the low counting rates that C2885001 24 were present in products in many cases, it was not C2885001 25 possible to take aliquots. A known amount of C2885001 26 alpha-emitting isotope was added to the target C2885001 27 solution for each actinide that was to be taken out. C2885001 28 Yield was determined from the amount of that C2885001 29 particular isotope remaining in the isolated actinide. C2885001 30 ANALYSIS (DECAY) Energy and half-life data were used to C2885001 31 identify isotopes. Energy data was used solely in C2885001 32 determining the amount, on each counting plate, of C2885001 33 alpha-emitting isotope that was added for yield C2885001 34 determination. Usually the beta-particle emitters and C2885001 35 electron-capture isotopes were identified by their C2885001 36 half-lives which were resolved from decay curves. C2885001 37 This could not be done for Am237 and Am238. These C2885001 38 isotopes were separated by the method of least C2885001 39 squares, an analytical method of separating decay C2885001 40 curve components. C2885001 41 CORRECTION Air-Window, Counting Efficiency, Backscattering, C2885001 42 Self-Scattering and Self-Absorption (SSSA), and C2885001 43 Geometry corrections. C2885001 44 HISTORY (20230112C) BP C2885001 45 ENDBIB 43 0 C2885001 46 COMMON 1 3 C2885001 47 EN-ERR C2885001 48 MEV C2885001 49 0.5 C2885001 50 ENDCOMMON 3 0 C2885001 51 ENDSUBENT 50 0 C288500199999 SUBENT C2885002 20230112 C227C2885002 1 BIB 4 10 C2885002 2 REACTION (94-PU-238(D,A)93-NP-236,,SIG) C2885002 3 SAMPLE Both 238Pu and 240Pu were plated by the same method. C2885002 4 About 200 microg of plutonium in an acid solution was C2885002 5 oxidized to plutonium (VI) by adding 1 M sodium C2885002 6 bromate and evaporating to dryness. C2885002 7 (94-PU-238,ENR=0.938) C2885002 8 (94-PU-239,ENR=0.058) and small amounts of Pu240 and C2885002 9 Pu241. C2885002 10 ERR-ANALYS (DATA-ERR,10.,30.) The limits of experimental errors. C2885002 11 STATUS (TABLE) Table III, page 22 of R,UCRL-3495,1956. C2885002 12 ENDBIB 10 0 C2885002 13 NOCOMMON 0 0 C2885002 14 DATA 2 1 C2885002 15 EN DATA C2885002 16 MEV MB C2885002 17 20.1 5.5 C2885002 18 ENDDATA 3 0 C2885002 19 ENDSUBENT 18 0 C288500299999 SUBENT C2885003 20230112 C227C2885003 1 BIB 5 11 C2885003 2 REACTION (94-PU-238(D,3N)95-AM-237,,SIG) C2885003 3 SAMPLE Both 238Pu and 240Pu were plated by the same method. C2885003 4 About 200 microg of plutonium in an acid solution was C2885003 5 oxidized to plutonium (VI) by adding 1 M sodium C2885003 6 bromate and evaporating to dryness. C2885003 7 (94-PU-238,ENR=0.938) C2885003 8 (94-PU-239,ENR=0.058) and small amounts of Pu240 and C2885003 9 Pu241. C2885003 10 DECAY-DATA (95-AM-237,1.3HR) C2885003 11 ERR-ANALYS (DATA-ERR,10.,30.) The limits of experimental errors. C2885003 12 STATUS (TABLE) Table III, page 22 of R,UCRL-3495,1956. C2885003 13 ENDBIB 11 0 C2885003 14 NOCOMMON 0 0 C2885003 15 DATA 2 6 C2885003 16 EN DATA C2885003 17 MEV MB C2885003 18 12.4 3.6 C2885003 19 15.9 7.6 C2885003 20 18.0 6.6 C2885003 21 20.1 9.0 C2885003 22 22.2 11.3 C2885003 23 23.3 8.7 C2885003 24 ENDDATA 8 0 C2885003 25 ENDSUBENT 24 0 C288500399999 SUBENT C2885004 20230112 C227C2885004 1 BIB 5 11 C2885004 2 REACTION (94-PU-238(D,2N)95-AM-238,,SIG) C2885004 3 SAMPLE Both 238Pu and 240Pu were plated by the same method. C2885004 4 About 200 microg of plutonium in an acid solution was C2885004 5 oxidized to plutonium (VI) by adding 1 M sodium C2885004 6 bromate and evaporating to dryness. C2885004 7 (94-PU-238,ENR=0.938) C2885004 8 (94-PU-239,ENR=0.058) and small amounts of Pu240 and C2885004 9 Pu241. C2885004 10 DECAY-DATA (95-AM-238,1.86HR) C2885004 11 ERR-ANALYS (DATA-ERR,10.,30.) The limits of experimental errors. C2885004 12 STATUS (TABLE) Table III, page 22 of R,UCRL-3495,1956. C2885004 13 ENDBIB 11 0 C2885004 14 NOCOMMON 0 0 C2885004 15 DATA 2 7 C2885004 16 EN DATA C2885004 17 MEV MB C2885004 18 12.4 9.5 C2885004 19 14.2 11.1 C2885004 20 15.9 8.9 C2885004 21 18.0 10.2 C2885004 22 20.1 8.8 C2885004 23 22.2 4.6 C2885004 24 23.3 6.1 C2885004 25 ENDDATA 9 0 C2885004 26 ENDSUBENT 25 0 C288500499999 SUBENT C2885005 20230112 C227C2885005 1 BIB 4 10 C2885005 2 REACTION (94-PU-238(D,N)95-AM-239,,SIG) C2885005 3 SAMPLE Both 238Pu and 240Pu were plated by the same method. C2885005 4 About 200 microg of plutonium in an acid solution was C2885005 5 oxidized to plutonium (VI) by adding 1 M sodium C2885005 6 bromate and evaporating to dryness. C2885005 7 (94-PU-238,ENR=0.938) C2885005 8 (94-PU-239,ENR=0.058) and small amounts of Pu240 and C2885005 9 Pu241. C2885005 10 ERR-ANALYS (DATA-ERR,10.,30.) The limits of experimental errors. C2885005 11 STATUS (TABLE) Table III, page 22 of R,UCRL-3495,1956. C2885005 12 ENDBIB 10 0 C2885005 13 NOCOMMON 0 0 C2885005 14 DATA 2 8 C2885005 15 EN DATA C2885005 16 MEV MB C2885005 17 9.1 1.5 C2885005 18 12.4 7.5 C2885005 19 14.2 12.7 C2885005 20 15.9 13.9 C2885005 21 18.0 13.9 C2885005 22 20.1 13.8 C2885005 23 22.2 13.3 C2885005 24 23.3 15.1 C2885005 25 ENDDATA 10 0 C2885005 26 ENDSUBENT 25 0 C288500599999 SUBENT C2885006 20230112 C227C2885006 1 BIB 4 11 C2885006 2 REACTION (94-PU-240(D,3N)95-AM-239,,SIG) C2885006 3 SAMPLE (94-PU-240,ENR=0.87172) C2885006 4 (94-PU-239,ENR=0.1220) C2885006 5 (94-PU-241,ENR=0.00583) C2885006 6 (94-PU-242,ENR=0.00044) Both 238Pu and 240Pu were C2885006 7 plated by the same method. About 200 microg of C2885006 8 plutonium in an acid solution was oxidized to C2885006 9 plutonium (VI) by adding 1 M sodium bromate and C2885006 10 evaporating to dryness. C2885006 11 ERR-ANALYS (DATA-ERR,10.,20.) The limits of experimental errors. C2885006 12 STATUS (TABLE) Table II, page 22 of R,UCRL-3495,1956. C2885006 13 ENDBIB 11 0 C2885006 14 NOCOMMON 0 0 C2885006 15 DATA 3 8 C2885006 16 EN DATA DATA-MAX C2885006 17 MEV MB MB C2885006 18 12.4 2.9 C2885006 19 13.7 7.8 C2885006 20 14.0 9.4 C2885006 21 15.5 10.9 C2885006 22 17.3 26.5 C2885006 23 19.4 19.9 C2885006 24 22.1 18.9 C2885006 25 23.3 12.9 C2885006 26 ENDDATA 10 0 C2885006 27 ENDSUBENT 26 0 C288500699999 SUBENT C2885007 20230112 C227C2885007 1 BIB 4 11 C2885007 2 REACTION (94-PU-240(D,2N)95-AM-240,,SIG) C2885007 3 SAMPLE (94-PU-240,ENR=0.87172) C2885007 4 (94-PU-239,ENR=0.1220) C2885007 5 (94-PU-241,ENR=0.00583) C2885007 6 (94-PU-242,ENR=0.00044) Both 238Pu and 240Pu were C2885007 7 plated by the same method. About 200 microg of C2885007 8 plutonium in an acid solution was oxidized to C2885007 9 plutonium (VI) by adding 1 M sodium bromate and C2885007 10 evaporating to dryness. C2885007 11 ERR-ANALYS (DATA-ERR,10.,20.) The limits of experimental errors. C2885007 12 STATUS (TABLE) Table II, page 22 of R,UCRL-3495,1956. C2885007 13 ENDBIB 11 0 C2885007 14 NOCOMMON 0 0 C2885007 15 DATA 2 9 C2885007 16 EN DATA C2885007 17 MEV MB C2885007 18 12.4 17.2 C2885007 19 13.7 46.8 C2885007 20 14.0 35.2 C2885007 21 15.5 24.3 C2885007 22 17.3 19.8 C2885007 23 19.4 17.4 C2885007 24 21.2 18.2 C2885007 25 22.1 16.8 C2885007 26 23.3 16.0 C2885007 27 ENDDATA 11 0 C2885007 28 ENDSUBENT 27 0 C288500799999 SUBENT C2885008 20230112 C227C2885008 1 BIB 5 12 C2885008 2 REACTION (94-PU-240(D,F)ELEM/MASS,CUM,SIG) C2885008 3 SAMPLE Both 238Pu and 240Pu were plated by the same method. C2885008 4 About 200 microg of plutonium in an acid solution was C2885008 5 oxidized to plutonium (VI) by adding 1 M sodium C2885008 6 bromate and evaporating to dryness. C2885008 7 (94-PU-240,ENR=0.87172) C2885008 8 (94-PU-239,ENR=0.1220) C2885008 9 (94-PU-241,ENR=0.00583) C2885008 10 (94-PU-242,ENR=0.00044) C2885008 11 ERR-ANALYS (DATA-ERR,20.,30.) The limits of experimental errors. C2885008 12 CORRECTION Cross section corrected for mass chain yield. C2885008 13 STATUS (TABLE) Table IV, page 26 of R,UCRL-3495,1956. C2885008 14 ENDBIB 12 0 C2885008 15 NOCOMMON 0 0 C2885008 16 DATA 6 52 C2885008 17 ELEMENT MASS EN EN-MIN EN-MAX DATA C2885008 18 NO-DIM NO-DIM MEV MEV MEV MB C2885008 19 38.0 89.0 10.0 11.0 1.95C2885008 20 38.0 89.0 12.4 4.70C2885008 21 38.0 89.0 13.7 7.18C2885008 22 38.0 89.0 15.4 10.7C2885008 23 38.0 89.0 19.4 10.5C2885008 24 38.0 89.0 21.2 14.2C2885008 25 38.0 91.0 10.0 11.0 3.01C2885008 26 38.0 91.0 12.4 8.20C2885008 27 38.0 91.0 13.7 12.5C2885008 28 38.0 91.0 15.4 15.3C2885008 29 38.0 91.0 19.4 19.3C2885008 30 38.0 91.0 21.2 21.0C2885008 31 46.0 109.0 12.4 9.00C2885008 32 46.0 112.0 12.4 6.41C2885008 33 48.0 115.0 10.0 11.0 2.78C2885008 34 48.0 115.0 12.4 7.20C2885008 35 48.0 115.0 13.7 11.0C2885008 36 48.0 115.0 15.4 29.4C2885008 37 48.0 115.0 19.4 38.9C2885008 38 48.0 115.0 21.2 38.2C2885008 39 48.0 115.0 23.3 53.9C2885008 40 48.0 117.0 10.0 11.0 2.51C2885008 41 48.0 117.0 12.4 5.80C2885008 42 48.0 117.0 13.7 11.0C2885008 43 48.0 117.0 15.4 30.1C2885008 44 48.0 117.0 19.4 36.3C2885008 45 48.0 117.0 21.2 45.2C2885008 46 48.0 117.0 23.3 55.0C2885008 47 56.0 139.0 10.0 11.0 8.5C2885008 48 56.0 139.0 12.4 20.9C2885008 49 56.0 139.0 13.7 23.6C2885008 50 56.0 139.0 15.4 49.4C2885008 51 56.0 139.0 19.4 42.2C2885008 52 56.0 139.0 21.2 55.3C2885008 53 56.0 139.0 23.3 65.7C2885008 54 56.0 140.0 10.0 11.0 6.0C2885008 55 56.0 140.0 12.4 14.9C2885008 56 56.0 140.0 13.7 20.3C2885008 57 56.0 140.0 15.4 32.5C2885008 58 56.0 140.0 19.4 37.4C2885008 59 56.0 140.0 21.2 37.7C2885008 60 56.0 140.0 23.3 47.1C2885008 61 58.0 141.0 19.4 44.7C2885008 62 58.0 143.0 19.4 40.6C2885008 63 58.0 144.0 19.4 33.2C2885008 64 60.0 147.0 13.7 11.5C2885008 65 60.0 147.0 19.4 23.9C2885008 66 63.0 156.0 13.7 1.81C2885008 67 63.0 156.0 19.4 5.04C2885008 68 63.0 157.0 13.7 1.60C2885008 69 63.0 157.0 19.4 5.68C2885008 70 65.0 161.0 19.4 0.85C2885008 71 ENDDATA 54 0 C2885008 72 ENDSUBENT 71 0 C288500899999 SUBENT C2885009 20230112 C227C2885009 1 BIB 4 5 C2885009 2 REACTION (94-PU-240(D,F),,SIG) C2885009 3 ANALYSIS No details on analysis. C2885009 4 ERR-ANALYS (DATA-ERR,20.,30.) The limits of experimental errors. C2885009 5 STATUS (DEP,C2885008) C2885009 6 (TABLE) Table IV, page 26 of R,UCRL-3495,1956. C2885009 7 ENDBIB 5 0 C2885009 8 NOCOMMON 0 0 C2885009 9 DATA 4 6 C2885009 10 EN EN-MIN EN-MAX DATA C2885009 11 MEV MEV MEV MB C2885009 12 10.0 11.0 157.0 C2885009 13 12.4 367.0 C2885009 14 13.7 526.0 C2885009 15 15.4 995.0 C2885009 16 19.4 1172.0 C2885009 17 21.2 1300.0 C2885009 18 ENDDATA 8 0 C2885009 19 ENDSUBENT 18 0 C288500999999 ENDENTRY 9 0 C288599999999