ENTRY C2303 20240405 C231C2303000 1 SUBENT C2303001 20230802 C231C2303001 1 BIB 10 37 C2303001 2 TITLE Fission Yields of Natural Uranium with Deuterons of 5, C2303001 3 10, and 13.6 MeV: Deuteron Capture and Competition C2303001 4 with Stripping C2303001 5 AUTHOR (T.T.Sugihara,P.J.Drevinsky,E.J.Troianello, C2303001 6 J.M.Alexander) C2303001 7 REFERENCE (J,PR,108,1264,1957) C2303001 8 #doi:10.1103/PhysRev.108.1264 C2303001 9 REL-REF (R,,J.M.Hollander+,J,RMP,25,469,1953) C2303001 10 #doi:10.1103/RevModPhys.25.469 C2303001 11 Data on radioactive isotopes. C2303001 12 INSTITUTE (1USACLK,1USAMIT) C2303001 13 FACILITY (CYCLO,1USAMIT) The Massachusetts Institute of C2303001 14 Technology cyclotron. C2303001 15 SAMPLE Uranium foil 0.7 mil thick (27.8 mg/cm2) of natural C2303001 16 isotopic composition was the target material in all C2303001 17 irradiations except two early experiments at 13.6 Mev C2303001 18 in which natural UO3(~50 mg/cm2) was used. The target C2303001 19 was wrapped in an Al- foil envelope (8.5 mg/cm2) and C2303001 20 was secured to the water-cooled target holder by 13.7 C2303001 21 mg/cm2 of Dural foil. C2303001 22 DETECTOR (GEMUC) All counting was done on a set of three C2303001 23 intercalibrated thin-wall, cylindrical, flow Geiger C2303001 24 counters, 0.75 in. in diameter and 5 in. long, of a C2303001 25 type that has been described. The counting gas was C2303001 26 98.7% He and 1.3% isobutane at one atmosphere. C2303001 27 METHOD (CHSEP,ACTIV) After irradiation, the target foil and C2303001 28 Al envelope were dissolved in 4M HCl and conc. HNO3. C2303001 29 Dilute H202 was added to convert all the U in C2303001 30 solution to the hexavalent state. The solution was C2303001 31 diluted with HCl to make a stock solution from which C2303001 32 aliquots were withdrawn for various chemical C2303001 33 operations. Nuclides were identified within a given C2303001 34 chemical fraction by half-period and absorption C2303001 35 characteristics. In no case were there significant, C2303001 36 deviations from literature values. C2303001 37 HISTORY (20180523C) BP C2303001 38 (20230721A) OS. ERR-ANALYS in sub.2 corrected C2303001 39 ENDBIB 37 0 C2303001 40 NOCOMMON 0 0 C2303001 41 ENDSUBENT 40 0 C230300199999 SUBENT C2303002 20240405 C231C2303002 1 BIB 8 75 C2303002 2 REACTION (92-U-0(D,F)MASS,CHN,SIG) C2303002 3 ANALYSIS Chain yield obtained by measured cumulative yield C2303002 4 divided by fractional cumulative yield taken from C2303002 5 J.M.Alexander et al. (1957) C2303002 6 REL-REF (R,,J.M.Alexander+,J,PR,108,1274,1957). C2303002 7 ERR-ANALYS (DATA-ERR) The error indicated is simply the mean C2303002 8 deviation of replicate experiments and is not C2303002 9 intended to represent the errors of the experiment. C2303002 10 (ERR-SYS,,25.) On an absolute basis the cross sections C2303002 11 for producing each nuclide are probably no better than C2303002 12 25%. The largest fraction of this error is attributed C2303002 13 to uncertainties in the beam intensity. C2303002 14 DECAY-DATA These were the activities measured for determination C2303002 15 of the chain yields: C2303002 16 ((1.)30-ZN-72,49.0HR,B-) C2303002 17 ((2.)33-AS-77,38.0HR,B-) C2303002 18 ((3.)35-BR-83,2.40HR,B-) C2303002 19 ((4.)38-SR-89,53.0D,B-) C2303002 20 ((5.)39-Y-91-G,58.0D,B-) C2303002 21 ((6.)39-Y-93-G,10.0HR,B-) C2303002 22 ((7.)40-ZR-95,65.0D,B-) C2303002 23 ((8.)41-NB-97-G,72.0MIN,B-) C2303002 24 ((9.)44-RU-103,43.0D,B-) C2303002 25 ((10.)44-RU-105,4.5HR,B-) C2303002 26 ((11.)45-RH-106-G,30.0SEC,B-) C2303002 27 ((12.)48-CD-115-G,54.0HR,B-) C2303002 28 ((13.)48-CD-115-M,43.0D,B-) C2303002 29 ((14.)51-SB-126,9.0HR,B-) C2303002 30 ((15.)51-SB-126,28.0D,B-) Comment by compiler: C2303002 31 Sb-126 isomers with such half-lives (9 hr, 28 d) C2303002 32 are not known C2303002 33 ((16.)52-TE-127-G,9.3HR,B-) C2303002 34 ((17.)52-TE-129-G,72.0MIN,B-) C2303002 35 ((18.)53-I-131,8.14D,B-) C2303002 36 ((19.)53-I-132-G,2.4HR,B-) C2303002 37 ((20.)53-I-133-G,20.5HR,B-) C2303002 38 ((21.)56-BA-140,12.80D,B-) C2303002 39 ((22.)58-CE-141,33.1D,B-) C2303002 40 ((23.)59-PR-143,13.7D,B-) C2303002 41 ((24.)59-PR-144-G,17.0MIN,B-) C2303002 42 ((25.)60-ND-147,11.3D,B-) C2303002 43 ((26.)61-PM-149,54.0HR,B-) C2303002 44 ((27.)61-PM-151,27.5HR,B-) C2303002 45 ((28.)62-SM-153,47.0HR,B-) C2303002 46 ((29.)63-EU-156,15.4D,B-) C2303002 47 ((30.)63-EU-157,15.4HR,B-) C2303002 48 ((31.)64-GD-159,18.0HR,B-) C2303002 49 FLAG (1.) Yield of 77As calculated assuming branching C2303002 50 ratio of 12-hr 77Ge to 59 sec 77Ge is 0.2. C2303002 51 (2.) Yield of 83Br calculated under assumption that C2303002 52 45% of the 83 chain passes through 26 min 83Se. C2303002 53 (3.) Counted through 10.1 mg/cm2 of Al to minimize C2303002 54 95Nb contribution. C2303002 55 (4.) Counted equilibrium mixture. C2303002 56 In thermal fission of 235U the mass-129 chain C2303002 57 yield should be taken as twice the 129Sb yield. The C2303002 58 yields in in this table are for 129Sb. C2303002 59 (5.) Counted through 26.2 mg/cm2 of Al to absorb C2303002 60 conversion electrons pf 105mRh. C2303002 61 (6.) Counted equilibrium mixture through 26.2 mg/cm2 C2303002 62 of Al to absorb radiation of 103Ru and 106Ru. C2303002 63 (7.) Mass assignment is not certain, not observed in C2303002 64 thermal fission but found in 14-MeV neutron fission C2303002 65 of 235U. C2303002 66 (8.) Measured 132I in equilibrium with 77-hr 132Te; C2303002 67 yield is that of parent. C2303002 68 (9.) Measured 143Pr in separate cerium fraction in C2303002 69 which 33-hr 143Ce had decayed; yield is that of parent.C2303002 70 (10.) Counted equilibrium mixture though 70 mg/cm2 of C2303002 71 Al to absorb radiations of 141Ce and 144Ce. Upper C2303002 72 limit, contribution of long-lived impurities possible. C2303002 73 STATUS (TABLE,,T.T.Sugihara+,J,PR,108,1264,1957) Table I C2303002 74 HISTORY (20230721A) DATA-ERR in COMMON changed to ERR-SYS and C2303002 75 moved to BIB section as upper limit C2303002 76 (20240405U) On. DECAY-DATA field moved. C2303002 77 ENDBIB 75 0 C2303002 78 NOCOMMON 0 0 C2303002 79 DATA 6 87 C2303002 80 MASS EN DATA DATA-ERR DECAY-FLAG FLAG C2303002 81 NO-DIM MEV MB MB NO-DIM NO-DIM C2303002 82 72.0 13.6 2.60E-02 5.00E-03 1.0 C2303002 83 77.0 5.0 4.00E-04 2.0 1.C2303002 84 77.0 10.0 1.70E-06 2.0 1.C2303002 85 77.0 13.6 1.60E-01 4.00E-03 2.0 1.C2303002 86 83.0 5.0 9.00E-03 3.0 2.C2303002 87 83.0 10.0 1.90E-01 4.00E-02 3.0 2.C2303002 88 83.0 13.6 2.20E+00 1.00E-01 3.0 2.C2303002 89 89.0 5.0 9.40E-02 4.00E-03 4.0 C2303002 90 89.0 10.0 1.76E+00 6.00E-02 4.0 C2303002 91 89.0 13.6 9.30E+00 4.00E-01 4.0 C2303002 92 91.0 5.0 1.43E-01 7.00E-03 5.0 C2303002 93 91.0 10.0 2.30E+00 1.00E-01 5.0 C2303002 94 91.0 13.6 1.22E+01 8.00E-01 5.0 C2303002 95 93.0 5.0 1.80E-01 6.0 C2303002 96 93.0 10.0 2.90E+00 6.0 C2303002 97 93.0 13.6 1.64E+01 8.00E-01 6.0 C2303002 98 95.0 5.0 2.05E-01 1.50E-02 7.0 3.C2303002 99 95.0 10.0 3.50E+00 2.00E-01 7.0 3.C2303002 100 95.0 13.6 1.68E+01 7.00E-01 7.0 3.C2303002 101 97.0 5.0 2.33E-01 1.60E-02 8.0 4.C2303002 102 97.0 10.0 5.20E+00 2.00E-01 8.0 4.C2303002 103 97.0 13.6 2.41E+01 2.00E-01 8.0 4.C2303002 104 103.0 5.0 1.41E-01 2.00E-03 9.0 C2303002 105 103.0 10.0 2.60E+00 9.0 C2303002 106 103.0 13.6 1.30E+01 2.00E+00 9.0 C2303002 107 105.0 5.0 1.34E-01 3.00E-03 10.0 5.C2303002 108 105.0 10.0 2.60E+00 10.0 5.C2303002 109 105.0 13.6 1.57E+01 1.50E+00 10.0 5.C2303002 110 106.0 5.0 1.20E-01 2.00E-02 11.0 6.C2303002 111 106.0 10.0 2.40E+00 11.0 6.C2303002 112 106.0 13.6 1.40E+01 7.00E-01 11.0 6.C2303002 113 115.0 5.0 4.80E-03 5.00E-01 12.0 C2303002 114 115.0 5.0 4.00E-04 2.00E-04 13.0 C2303002 115 115.0 10.0 7.30E-01 3.00E-02 12.0 C2303002 116 115.0 10.0 4.60E-02 4.00E-03 13.0 C2303002 117 115.0 13.6 4.20E+00 2.00E-01 12.0 C2303002 118 115.0 13.6 3.00E-01 2.00E-02 13.0 C2303002 119 126.0 10.0 1.20E+00 1.00E-01 14.0 C2303002 120 126.0 10.0 3.50E-01 2.00E-02 15.0 7.C2303002 121 126.0 13.6 3.90E+00 14.0 C2303002 122 126.0 13.6 1.70E+00 15.0 7.C2303002 123 127.0 5.0 1.50E-02 1.00E-03 16.0 4.C2303002 124 127.0 10.0 1.56E+00 6.00E-02 16.0 4.C2303002 125 127.0 13.6 7.30E+00 16.0 4.C2303002 126 129.0 5.0 1.10E-02 17.0 4.C2303002 127 129.0 10.0 1.15E+00 1.00E-01 17.0 4.C2303002 128 129.0 13.6 5.90E+00 17.0 4.C2303002 129 131.0 5.0 1.28E-01 1.00E-03 18.0 C2303002 130 131.0 10.0 4.20E+00 1.00E-01 18.0 C2303002 131 131.0 13.6 1.90E+01 2.00E+00 18.0 C2303002 132 132.0 5.0 1.72E-01 3.00E-03 19.0 8.C2303002 133 132.0 10.0 4.20E+00 2.00E-01 19.0 8.C2303002 134 132.0 13.6 2.06E+01 1.10E+00 19.0 8.C2303002 135 133.0 5.0 2.37E-01 9.00E-03 20.0 C2303002 136 133.0 10.0 5.30E+00 2.00E-01 20.0 C2303002 137 133.0 13.6 2.30E+01 20.0 C2303002 138 140.0 5.0 1.81E-01 9.00E-03 21.0 C2303002 139 140.0 10.0 3.40E+00 2.00E-01 21.0 C2303002 140 140.0 13.6 1.75E+01 9.00E-01 21.0 C2303002 141 141.0 5.0 1.60E-01 1.60E-02 22.0 C2303002 142 141.0 10.0 2.90E+00 1.00E-01 22.0 C2303002 143 141.0 13.6 1.56E+01 1.60E+00 22.0 C2303002 144 143.0 5.0 1.20E-01 7.00E-03 23.0 9.C2303002 145 143.0 10.0 2.60E+00 1.00E-01 23.0 9.C2303002 146 143.0 13.6 1.21E+01 3.00E-01 23.0 9.C2303002 147 144.0 5.0 1.83E-01 4.00E-03 24.0 10.C2303002 148 144.0 10.0 3.00E+00 3.00E-01 24.0 10.C2303002 149 144.0 13.6 1.40E+01 2.00E+00 24.0 10.C2303002 150 147.0 5.0 8.90E-02 4.00E-03 25.0 C2303002 151 147.0 10.0 1.60E+00 1.00E-01 25.0 C2303002 152 147.0 13.6 8.70E+00 3.00E-01 25.0 C2303002 153 149.0 5.0 3.30E-02 2.00E-03 26.0 C2303002 154 149.0 10.0 8.00E-01 26.0 C2303002 155 149.0 13.6 3.80E+00 6.00E-01 26.0 C2303002 156 151.0 10.0 5.00E-01 27.0 C2303002 157 151.0 13.6 3.00E+00 2.00E-01 27.0 C2303002 158 153.0 5.0 1.21E-02 1.00E-04 28.0 C2303002 159 153.0 10.0 3.30E-01 1.00E-02 28.0 C2303002 160 153.0 13.6 2.00E+00 1.00E-01 28.0 C2303002 161 156.0 5.0 3.00E-03 5.00E-04 29.0 C2303002 162 156.0 10.0 1.32E-01 2.00E-03 29.0 C2303002 163 156.0 13.6 6.60E-01 8.00E-02 29.0 C2303002 164 157.0 5.0 1.60E-03 30.0 C2303002 165 157.0 10.0 7.60E-02 2.00E-03 30.0 C2303002 166 157.0 13.6 4.50E-01 6.00E-02 30.0 C2303002 167 159.0 10.0 3.90E-02 1.00E-03 31.0 C2303002 168 159.0 13.6 2.10E-01 1.00E-02 31.0 C2303002 169 ENDDATA 89 0 C2303002 170 ENDSUBENT 169 0 C230300299999 SUBENT C2303003 20180523 C176C2303 3 1 BIB 6 25 C2303 3 2 REACTION (92-U-238(D,F)MASS,PR,NU,,,DERIV) C2303 3 3 ANALYSIS Subtraction of the masses of complementary products C2303 3 4 (i.e., those of the same yield) from the assumed mass C2303 3 5 of the fissioning nucleus. C2303 3 6 COMMENT Authors indicate that the fissioning nucleus has to C2303 3 7 be taken to be mass 239, 240, and 240 for deuteron C2303 3 8 energies of 5, 10, and 13.6 MeV, respectively. The C2303 3 9 stable isotopes of U are 234, 235 and 238. C2303 3 10 Consequently, we deal with 238U as a target nucleus. C2303 3 11 ERR-ANALYS (DATA-ERR) The error in nu bar has been estimated in C2303 3 12 the following way: If an error in the yield of a C2303 3 13 light product is assigned, this can be converted to C2303 3 14 an error in mass by assuming the smooth curves to be C2303 3 15 the best fit to the data. The error in the mass of C2303 3 16 the heavy complementary product is obtained by C2303 3 17 determining the range of heavy masses corresponding C2303 3 18 to the range in yield of the light mass. The error in C2303 3 19 s is taken to be the root-mean-square error in the C2303 3 20 masses of light and heavy products. C2303 3 21 (ERR-1,10.,20.) The error in relative yields has been C2303 3 22 assumed to be 10% for masses 89 and 105 and 20% for C2303 3 23 masses 72, 77, and 83. C2303 3 24 FLAG (1.) Obtained by extrapolating of smooth mass- C2303 3 25 distribution curve. C2303 3 26 STATUS (TABLE) Table III, page 1268. C2303 3 27 ENDBIB 25 0 C2303 3 28 NOCOMMON 0 0 C2303 3 29 DATA 5 13 C2303 3 30 MASS EN DATA DATA-ERR FLAG C2303 3 31 NO-DIM MEV PRT/FIS PRT/FIS NO-DIM C2303 3 32 72.0 13.6 2.9 0.8 1. C2303 3 33 77.0 5.0 2.0 0.6 1. C2303 3 34 77.0 10.0 2.2 0.7 1. C2303 3 35 77.0 13.6 3.3 0.7 C2303 3 36 83. 5.0 3.1 0.8 C2303 3 37 83.0 10.0 4.0 1.5 C2303 3 38 83.0 13.6 5.2 0.9 C2303 3 39 89.0 5.0 4.1 1.0 C2303 3 40 89.0 10.0 5.0 0.7 C2303 3 41 89.0 13.6 5.2 1.0 C2303 3 42 105.0 5.0 3.0 0.5 C2303 3 43 105.0 10.0 5.0 0.7 C2303 3 44 105.0 13.6 4.7 0.8 C2303 3 45 ENDDATA 15 0 C2303 3 46 ENDSUBENT 45 0 C2303 399999 SUBENT C2303004 20180622 C176C2303 4 1 BIB 3 4 C2303 4 2 REACTION (92-U-238(D,F),PR,NU,,,DERIV) C2303 4 3 ANALYSIS Average of nu(A=83) and nu(A=105). C2303 4 4 STATUS (TABLE) abstract, page 1264. C2303 4 5 (DEP,C2303003) nu(A) C2303 4 6 ENDBIB 4 0 C2303 4 7 NOCOMMON 0 0 C2303 4 8 DATA 2 3 C2303 4 9 EN DATA C2303 4 10 MEV PRT/FIS C2303 4 11 5.0 3.5 C2303 4 12 10.0 5.0 C2303 4 13 13.6 5.0 C2303 4 14 ENDDATA 5 0 C2303 4 15 ENDSUBENT 14 0 C2303 499999 SUBENT C2303005 20180622 C176C2303 5 1 BIB 4 10 C2303 5 2 REACTION (92-U-238(D,F),,SIG,,,DERIV) C2303 5 3 ANALYSIS Summation of chain cross sections C2303 5 4 ERR-ANALYS (DATA-ERR) The error indicated is simply the mean C2303 5 5 deviation of replicate experiments and is not C2303 5 6 intended to represent the errors of the experiment. C2303 5 7 On an absolute basis the cross sections for producing C2303 5 8 each nuclide are probably no better than 25%. The C2303 5 9 largest fraction of this error is attributed to C2303 5 10 STATUS (TABLE) abstract, page 1264. C2303 5 11 (DEP,C2303002) Chain cross section C2303 5 12 ENDBIB 10 0 C2303 5 13 NOCOMMON 0 0 C2303 5 14 DATA 3 3 C2303 5 15 EN DATA DATA-ERR C2303 5 16 MEV MB MB C2303 5 17 5.0 3.5 C2303 5 18 10. 86.0 C2303 5 19 13.6 430.0 150.0 C2303 5 20 ENDDATA 5 0 C2303 5 21 ENDSUBENT 20 0 C2303 599999 ENDENTRY 5 0 C230399999999