ENTRY C2545 20200502 C197C254500000001 SUBENT C2545001 20200502 C197C254500100001 BIB 12 58 C254500100002 TITLE Excitation functions for production of heavy C254500100003 actinides from interactions of 18O with 248Cm and 249CfC254500100004 AUTHOR (D.Lee,K.J.Moody,M.J.Nurmia,G.T.Seaborg, C254500100005 H.R.Von Gunten,D.C.Hoffman) C254500100006 REFERENCE (J,PR/C,27,2656,1983) C254500100007 #doi:10.1103/PhysRevC.27.2656 C254500100008 REL-REF (M,A0173001,D.Lee+,J,PR/C,25,286,1982) Previous paper C254500100009 and experimental techniques. C254500100010 INSTITUTE (1USABRK,2SWTWUR,2SWTUBE,1USALAS) C254500100011 FACILITY (CYCLO,1USABRK) The Lawrence Berkeley Laboratory 88- C254500100012 inch cyclotron. C254500100013 METHOD (ACTIV,CHSEP) The 248Cm and 249Cf targets were C254500100014 irradiated at the Lawrence Berkeley Laboratory C254500100015 88-inch cyclotron with 97-, 104-, 113-, and 122-MeV C254500100016 180 ions. In addition, the 249Cf was irradiated with C254500100017 91- and 150- MeV 18O ions. C254500100018 CORRECTION All quoted energies have been corrected for the total C254500100019 energy loss of about 15 MeV in the Havar window, C254500100020 cooling gas, and Be target backing. No corrections C254500100021 were made for the energy losses of 1 to 2 MeV in the C254500100022 targets. C254500100023 ERR-ANALYS (DATA-ERR) The standard deviation associated with the C254500100024 quoted absolute cross sections is estimated to be C254500100025 +-12%, in addition to the statistical standard C254500100026 deviation s given in the tables, which is based on C254500100027 the decay analysis. C254500100028 (ERR-S) Statistical uncertainty as given in the table C254500100029 RAD-DET ((10.)99-ES-253,A) C254500100030 ((14.)100-FM-254,A) C254500100031 ((15.)100-FM-255,A) C254500100032 ((16.)98-CF-248,A) C254500100033 ((17.)99-ES-253,A) C254500100034 DECAY-DATA ((1.)97-BK-245,,DG,0.253,0.31) C254500100035 ((2.)97-BK-246,,DG,0.799,0.61) C254500100036 ((3.)97-BK-248-M,,DG,0.551,0.05) C254500100037 ((4.)97-BK-250,,DG,0.989,0.45) C254500100038 ((5.)97-BK-251,,B-,0.177) C254500100039 ((6.)98-CF-246,,A,6.76,1.0) C254500100040 ((7.)98-CF-248,,A,6.26,1.0) C254500100041 ((8.)98-CF-250,,A,6.03,0.96) C254500100042 ((9.)98-CF-252,,A,6.12,0.97) C254500100043 ((10.)98-CF-253,,B-) C254500100044 ((10.)99-ES-253,,A,6.63,1.0) Daughter of 98-CF-253. C254500100045 ((11.)98-CF-254,,SF,,1.0) C254500100046 ((12.)99-ES-252,,A,6.63,0.73) C254500100047 ((13.)99-ES-253,,A,6.63,0.98) C254500100048 ((14.)99-ES-254-M,,B-) C254500100049 ((14.)100-FM-254,,A,7.19,1.0) Daughter of 99-ES-254-M. C254500100050 ((15.)99-ES-255,,B-) C254500100051 ((15.)100-FM-255,,A,7.01,0.99) Daughter of 99-ES-255. C254500100052 ((16.)100-FM-252,,A) C254500100053 ((16.)98-CF-248,,A,6.26,1.0) Daughter of 100-FM-252. C254500100054 ((17.)100-FM-253,,EC) C254500100055 ((17.)99-ES-253,,A,6.63,0.98) Daughter of 100-FM-253. C254500100056 ((18.)100-FM-254,,A,7.06/7.19,1.0) C254500100057 ((19.)100-FM-255,,A,6.89/7.02,0.99) C254500100058 ((20.)100-FM-256,,SF,,0.92) C254500100059 HISTORY (20200502C) BP C254500100060 ENDBIB 58 0 C254500100061 COMMON 1 3 C254500100062 DATA-ERR C254500100063 PER-CENT C254500100064 12.0 C254500100065 ENDCOMMON 3 0 C254500100066 ENDSUBENT 65 0 C254500199999 SUBENT C2545002 20200502 C197C254500200001 BIB 4 33 C254500200002 REACTION (96-CM-248(8-O-18,X)ELEM/MASS,,SIG) C254500200003 SAMPLE Similar to EXFOR entry A0173: The target contained C254500200004 0.924 mg/cm2 of 'Cm' /96.5% 248-Cm,3.5% 246-Cm/ in C254500200005 the form Cm-F/3 deposited with a diam. of 6.5 mm on C254500200006 2.65 mg/cm2 'Be' foil. C254500200007 (96-CM-248,ENR=0.965) C254500200008 (96-CM-246,ENR=0.035) C254500200009 Gold foils, 19.5 mm in diam. and 2 mg/cm2 thick, were C254500200010 placed 3 mm from the target to catch the recoiling C254500200011 products. C254500200012 FLAG (1.) No absolute gamma-ray intensity data are C254500200013 available for the 0.177-MeV photon which we measured, C254500200014 but the 0.177-MeV level in 251Cf is deexcited by a C254500200015 0.177-MeV gamma transition (72.5%) and a 0.153-MeV C254500200016 gamma transition (27.5%) . The total conversion C254500200017 coefficient for the 0.177 gamma transition was C254500200018 estimated to be =8 based on a measured alphaK of 6.0 C254500200019 and an estimated (alphaL+alphaM) of 1.7 for an M1(+ C254500200020 E2) transition. The decay of 251Bk is assumed to C254500200021 primarily populate the 0.177- MeV level. If there is C254500200022 appreciable feeding of the ground state or other C254500200023 levels which do not deexcite via the 0.177-MeV C254500200024 transition, our quoted cross sections will be C254500200025 correspondingly too 1ow. C254500200026 (2.) Corrected for contribution from the Bk parent. C254500200027 (3.) Radiation from daughter activity was measured. C254500200028 (4.) Corrected for contribution from decay of the Cf C254500200029 parent. C254500200030 (5.) Corrected for contribution from decay of the Es C254500200031 parent. C254500200032 (6.) Corrected for contribution from 7.04-MeV alpha C254500200033 group of 252Fm. C254500200034 STATUS (TABLE) Table I, page 2657. C254500200035 ENDBIB 33 0 C254500200036 NOCOMMON 0 0 C254500200037 DATA 9 80 C254500200038 ELEMENT MASS ISOMER EN DATA ERR-S C254500200039 DATA-MIN FLAG DECAY-FLAG C254500200040 NO-DIM NO-DIM NO-DIM MEV MICRO-B PER-CENT C254500200041 MICRO-B NO-DIM NO-DIM C254500200042 97.0 245.0 97.0 0.3 20.0C254500200043 1.0 C254500200044 97.0 245.0 104.0 2.0 10.0C254500200045 1.0 C254500200046 97.0 245.0 113.0 5.8 5.0C254500200047 1.0 C254500200048 97.0 245.0 122.0 8.7 20.0C254500200049 1.0 C254500200050 97.0 246.0 97.0 5.9 10.0C254500200051 2.0 C254500200052 97.0 246.0 104.0 15.0 5.0C254500200053 2.0 C254500200054 97.0 246.0 113.0 50.0 6.0C254500200055 2.0 C254500200056 97.0 246.0 122.0 56.0 5.0C254500200057 2.0 C254500200058 97.0 248.0 1.0 97.0 137.0 6.0C254500200059 3.0 C254500200060 97.0 248.0 1.0 104.0 360.0 5.0C254500200061 3.0 C254500200062 97.0 248.0 1.0 113.0 690.0 6.0C254500200063 3.0 C254500200064 97.0 248.0 1.0 122.0 586.0 10.0C254500200065 3.0 C254500200066 97.0 250.0 97.0 1080.0 8.0C254500200067 4.0 C254500200068 97.0 250.0 104.0 1970.0 2.0C254500200069 4.0 C254500200070 97.0 250.0 113.0 1700.0 5.0C254500200071 4.0 C254500200072 97.0 250.0 122.0 546.0 3.0C254500200073 4.0 C254500200074 97.0 251.0 97.0 13.0C254500200075 180.0 1.0 5.0 C254500200076 97.0 251.0 104.0 15.0C254500200077 420.0 1.0 5.0 C254500200078 97.0 251.0 113.0 21.0C254500200079 125.0 1.0 5.0 C254500200080 97.0 251.0 122.0 14.0C254500200081 65.0 1.0 5.0 C254500200082 98.0 246.0 97.0 0.05 14.0C254500200083 6.0 C254500200084 98.0 246.0 104.0 0.1 20.0C254500200085 6.0 C254500200086 98.0 246.0 113.0 0.5 14.0C254500200087 6.0 C254500200088 98.0 246.0 122.0 0.85 24.0C254500200089 6.0 C254500200090 98.0 248.0 97.0 54.0 22.0C254500200091 2.0 7.0 C254500200092 98.0 248.0 104.0 93.0 3.0C254500200093 2.0 7.0 C254500200094 98.0 248.0 113.0 210.0 20.0C254500200095 2.0 7.0 C254500200096 98.0 248.0 122.0 152.0 13.0C254500200097 2.0 7.0 C254500200098 98.0 250.0 97.0 930.0 7.0C254500200099 2.0 8.0 C254500200100 98.0 250.0 104.0 1300.0 27.0C254500200101 2.0 8.0 C254500200102 98.0 250.0 113.0 900.0 25.0C254500200103 2.0 8.0 C254500200104 98.0 250.0 122.0 713.0 41.0C254500200105 2.0 8.0 C254500200106 98.0 252.0 97.0 287.0 20.0C254500200107 9.0 C254500200108 98.0 252.0 104.0 337.0 5.0C254500200109 9.0 C254500200110 98.0 252.0 113.0 310.0 30.0C254500200111 9.0 C254500200112 98.0 252.0 122.0 186.0 5.0C254500200113 9.0 C254500200114 98.0 253.0 97.0 49.0 27.0C254500200115 3.0 10.0 C254500200116 98.0 253.0 104.0 40.0 4.0C254500200117 3.0 10.0 C254500200118 98.0 253.0 113.0 37.0 22.0C254500200119 3.0 10.0 C254500200120 98.0 253.0 122.0 13.0 4.0C254500200121 3.0 10.0 C254500200122 98.0 254.0 97.0 3.3 21.0C254500200123 11.0 C254500200124 98.0 254.0 104.0 2.5 20.0C254500200125 11.0 C254500200126 98.0 254.0 113.0 1.2 50.0C254500200127 11.0 C254500200128 98.0 254.0 122.0 0.4 13.0C254500200129 11.0 C254500200130 99.0 252.0 97.0 5.9 25.0C254500200131 12.0 C254500200132 99.0 252.0 104.0 20.0 8.0C254500200133 12.0 C254500200134 99.0 252.0 113.0 37.0 10.0C254500200135 12.0 C254500200136 99.0 252.0 122.0 26.0 16.0C254500200137 12.0 C254500200138 99.0 253.0 97.0 11.6 3.0C254500200139 4.0 13.0 C254500200140 99.0 253.0 104.0 28.8 3.0C254500200141 4.0 13.0 C254500200142 99.0 253.0 113.0 23.0 4.0C254500200143 4.0 13.0 C254500200144 99.0 253.0 122.0 9.6 7.0C254500200145 4.0 13.0 C254500200146 99.0 254.0 1.0 97.0 6.5 3.0C254500200147 3.0 14.0 C254500200148 99.0 254.0 1.0 104.0 9.2 2.0C254500200149 3.0 14.0 C254500200150 99.0 254.0 1.0 113.0 4.1 2.0C254500200151 3.0 14.0 C254500200152 99.0 254.0 1.0 122.0 0.9 11.0C254500200153 3.0 14.0 C254500200154 99.0 255.0 97.0 0.25 28.0C254500200155 3.0 15.0 C254500200156 99.0 255.0 104.0 0.31 23.0C254500200157 3.0 15.0 C254500200158 99.0 255.0 113.0 0.2 38.0C254500200159 3.0 15.0 C254500200160 99.0 255.0 122.0 0.08 38.0C254500200161 3.0 15.0 C254500200162 100.0 252.0 97.0 1.1 27.0C254500200163 3.0 16.0 C254500200164 100.0 252.0 104.0 1.2 17.0C254500200165 3.0 16.0 C254500200166 100.0 252.0 113.0 1.2 17.0C254500200167 3.0 16.0 C254500200168 100.0 252.0 122.0 0.4 30.0C254500200169 3.0 16.0 C254500200170 100.0 253.0 97.0 1.9 21.0C254500200171 3.0 17.0 C254500200172 100.0 253.0 104.0 1.9 21.0C254500200173 3.0 17.0 C254500200174 100.0 253.0 113.0 1.5 47.0C254500200175 3.0 17.0 C254500200176 100.0 253.0 122.0 0.9 22.0C254500200177 3.0 17.0 C254500200178 100.0 254.0 97.0 2.4 4.0C254500200179 5.0 18.0 C254500200180 100.0 254.0 104.0 3.1 6.0C254500200181 5.0 18.0 C254500200182 100.0 254.0 113.0 2.0 5.0C254500200183 5.0 18.0 C254500200184 100.0 254.0 122.0 0.6 5.0C254500200185 5.0 18.0 C254500200186 100.0 255.0 97.0 1.1 20.0C254500200187 6.0 19.0 C254500200188 100.0 255.0 104.0 1.1 14.0C254500200189 6.0 19.0 C254500200190 100.0 255.0 113.0 0.5 38.0C254500200191 6.0 19.0 C254500200192 100.0 255.0 122.0 0.2 43.0C254500200193 6.0 19.0 C254500200194 100.0 256.0 97.0 0.3 15.0C254500200195 20.0 C254500200196 100.0 256.0 104.0 0.33 23.0C254500200197 20.0 C254500200198 100.0 256.0 113.0 0.16 16.0C254500200199 20.0 C254500200200 100.0 256.0 122.0 0.04 33.0C254500200201 20.0 C254500200202 ENDDATA 164 0 C254500200203 ENDSUBENT 202 0 C254500299999 SUBENT C2545003 20200502 C197C254500300001 BIB 4 17 C254500300002 REACTION (98-CF-249(8-O-18,X)ELEM/MASS,,SIG) C254500300003 SAMPLE (98-CF-249,ENR=1.0) The 249Cf target contained 0.52 C254500300004 mg/cm2 in the form of CfF3 deposited with a diameter C254500300005 of 6.5 mm on 2.13 mg/cm2 Be foil. C254500300006 FLAG (1.) The total cross section for 250Es when both C254500300007 isomers were not measured, the ratio of the cross C254500300008 section of the 6+ (8.6 h) to the sum of the cross C254500300009 sections of the 6+ and 1- (2.1 h) isomers was taken C254500300010 to be 0.17+0.17 for the 91- and 97-MeV bombardments, C254500300011 consistent with our measured values of 0.17- +0.05 at C254500300012 104 MeV, 0.32+0.16 at 122 MeV, and 0.43-+0.13 at 150 C254500300013 MeV. An interpolated value of 0.25-+0.17 for 113 MeV C254500300014 was used. C254500300015 (2.) Radiation from daughter activity mas measured. C254500300016 (3.) Corrected for contribution from 7.04-MeV alpha C254500300017 group of 252Fm. C254500300018 STATUS (TABLE) Table II, page 2658. C254500300019 ENDBIB 17 0 C254500300020 NOCOMMON 0 0 C254500300021 DATA 9 105 C254500300022 ELEMENT MASS ISOMER EN DATA ERR-S C254500300023 DATA-MAX FLAG DECAY-FLAG C254500300024 NO-DIM NO-DIM NO-DIM MEV MICRO-B PER-CENT C254500300025 MICRO-B NO-DIM NO-DIM C254500300026 97.0 245.0 97.0 6.7 39.0C254500300027 1. C254500300028 97.0 246.0 97.0 83.0 17.0C254500300029 2. C254500300030 97.0 248.0 1.0 97.0 104.0 32.0C254500300031 3. C254500300032 97.0 250.0 97.0 10.5 20.0C254500300033 4. C254500300034 98.0 246.0 91.0 0.4 21.0C254500300035 6. C254500300036 98.0 246.0 97.0 35.0 4.0C254500300037 6. C254500300038 98.0 246.0 104.0 129.0 2.0C254500300039 6. C254500300040 98.0 246.0 113.0 270.0 1.0C254500300041 6. C254500300042 98.0 246.0 122.0 260.0 1.0C254500300043 6. C254500300044 98.0 246.0 150.0 141.0 2.0C254500300045 6. C254500300046 98.0 248.0 91.0 2840.0 1.0C254500300047 7. C254500300048 98.0 248.0 97.0 10800.0 9.0C254500300049 7. C254500300050 98.0 248.0 104.0 17500.0 1.0C254500300051 7. C254500300052 98.0 248.0 113.0 22900.0 1.0C254500300053 7. C254500300054 98.0 248.0 122.0 19200.0 1.0C254500300055 7. C254500300056 98.0 248.0 150.0 9150.0 1.0C254500300057 7. C254500300058 98.0 250.0 91.0 24500.0 2.0C254500300059 8. C254500300060 98.0 250.0 97.0 38700.0 2.0C254500300061 8. C254500300062 98.0 250.0 104.0 34100.0 3.0C254500300063 8. C254500300064 98.0 250.0 113.0 38700.0 10.0C254500300065 8. C254500300066 98.0 250.0 122.0 37800.0 2.0C254500300067 8. C254500300068 98.0 250.0 150.0 40700.0 3.0C254500300069 8. C254500300070 99.0 249.0 91.0 2.0 50.0C254500300071 C254500300072 99.0 249.0 97.0 103.0 4.0C254500300073 C254500300074 99.0 249.0 104.0 480.0 13.0C254500300075 C254500300076 99.0 249.0 113.0 1175.0 6.0C254500300077 C254500300078 99.0 249.0 122.0 1030.0 8.0C254500300079 C254500300080 99.0 249.0 150.0 650.0 10.0C254500300081 C254500300082 99.0 250.0 91.0 430.0 13.0C254500300083 1.0 C254500300084 99.0 250.0 97.0 3850.0 22.0C254500300085 1.0 C254500300086 99.0 250.0 104.0 6730.0 9.0C254500300087 1.0 C254500300088 99.0 250.0 113.0 8330.0 17.0C254500300089 1.0 C254500300090 99.0 250.0 122.0 4320.0 13.0C254500300091 1.0 C254500300092 99.0 250.0 150.0 1960.0 6.0C254500300093 1.0 C254500300094 99.0 251.0 91.0 334.0 11.0C254500300095 C254500300096 99.0 251.0 97.0 1775.0 5.0C254500300097 C254500300098 99.0 251.0 104.0 3900.0 5.0C254500300099 C254500300100 99.0 251.0 113.0 2865.0 2.0C254500300101 C254500300102 99.0 251.0 122.0 2150.0 5.0C254500300103 C254500300104 99.0 251.0 150.0 730.0 10.0C254500300105 C254500300106 99.0 252.0 91.0 263.0 11.0C254500300107 12. C254500300108 99.0 252.0 97.0 1100.0 4.0C254500300109 12. C254500300110 99.0 252.0 104.0 1350.0 6.0C254500300111 12. C254500300112 99.0 252.0 113.0 817.0 3.0C254500300113 12. C254500300114 99.0 252.0 122.0 325.0 16.0C254500300115 12. C254500300116 99.0 252.0 150.0 127.0 49.0C254500300117 12. C254500300118 99.0 253.0 91.0 6.1 28.0C254500300119 13. C254500300120 99.0 253.0 97.0 27.0 7.0C254500300121 13. C254500300122 99.0 253.0 104.0 29.0 18.0C254500300123 13. C254500300124 99.0 253.0 113.0 32.0 7.0C254500300125 13. C254500300126 99.0 253.0 122.0 15.0 20.0C254500300127 13. C254500300128 99.0 253.0 150.0 4.9 20.0C254500300129 13. C254500300130 99.0 254.0 1.0 91.0 C254500300131 0.02 2.0 14. C254500300132 99.0 254.0 1.0 97.0 0.05 20.0C254500300133 2.0 14. C254500300134 99.0 254.0 1.0 104.0 0.12 5.0C254500300135 2.0 14. C254500300136 99.0 254.0 1.0 113.0 0.25 4.0C254500300137 2.0 14. C254500300138 99.0 254.0 1.0 122.0 0.29 3.0C254500300139 2.0 14. C254500300140 99.0 254.0 1.0 150.0 0.09 6.0C254500300141 2.0 14. C254500300142 100.0 250.0 91.0 C254500300143 0.02 C254500300144 100.0 250.0 97.0 10.4 2.0C254500300145 C254500300146 100.0 250.0 104.0 68.0 1.0C254500300147 C254500300148 100.0 250.0 113.0 131.0 3.0C254500300149 C254500300150 100.0 250.0 122.0 157.0 1.0C254500300151 C254500300152 100.0 250.0 150.0 43.0 5.0C254500300153 C254500300154 100.0 252.0 91.0 610.0 18.0C254500300155 2.0 16. C254500300156 100.0 252.0 97.0 1910.0 19.0C254500300157 2.0 16. C254500300158 100.0 252.0 104.0 2400.0 20.0C254500300159 2.0 16. C254500300160 100.0 252.0 113.0 1600.0 13.0C254500300161 2.0 16. C254500300162 100.0 252.0 122.0 620.0 17.0C254500300163 2.0 16. C254500300164 100.0 252.0 150.0 89.0 17.0C254500300165 2.0 16. C254500300166 100.0 253.0 91.0 286.0 13.0C254500300167 2.0 17. C254500300168 100.0 253.0 97.0 477.0 4.0C254500300169 2.0 17. C254500300170 100.0 253.0 104.0 526.0 3.0C254500300171 2.0 17. C254500300172 100.0 253.0 113.0 324.0 8.0C254500300173 2.0 17. C254500300174 100.0 253.0 122.0 160.0 31.0C254500300175 2.0 17. C254500300176 100.0 253.0 150.0 19.0 10.0C254500300177 2.0 17. C254500300178 100.0 254.0 91.0 12.3 4.0C254500300179 18. C254500300180 100.0 254.0 97.0 80.0 1.0C254500300181 18. C254500300182 100.0 254.0 104.0 103.0 1.0C254500300183 18. C254500300184 100.0 254.0 113.0 56.0 2.0C254500300185 18. C254500300186 100.0 254.0 122.0 24.5 3.0C254500300187 18. C254500300188 100.0 254.0 150.0 2.2 13.0C254500300189 18. C254500300190 100.0 255.0 91.0 2.5 28.0C254500300191 3.0 19. C254500300192 100.0 255.0 97.0 40.0 43.0C254500300193 3.0 19. C254500300194 100.0 255.0 104.0 55.0 44.0C254500300195 3.0 19. C254500300196 100.0 255.0 113.0 19.0 40.0C254500300197 3.0 19. C254500300198 100.0 255.0 122.0 6.0 42.0C254500300199 3.0 19. C254500300200 100.0 255.0 150.0 0.8 50.0C254500300201 3.0 19. C254500300202 100.0 256.0 91.0 0.11 10.0C254500300203 20. C254500300204 100.0 256.0 97.0 1.2 3.0C254500300205 20. C254500300206 100.0 256.0 104.0 1.5 7.0C254500300207 20. C254500300208 100.0 256.0 113.0 0.9 22.0C254500300209 20. C254500300210 100.0 256.0 122.0 0.5 20.0C254500300211 20. C254500300212 100.0 256.0 150.0 0.02 20.0C254500300213 20. C254500300214 101.0 256.0 91.0 0.07 20.0C254500300215 2.0 C254500300216 101.0 256.0 97.0 0.69 20.0C254500300217 2.0 C254500300218 101.0 256.0 104.0 0.19 19.0C254500300219 2.0 C254500300220 101.0 256.0 113.0 0.33 9.0C254500300221 2.0 C254500300222 101.0 256.0 122.0 0.11 19.0C254500300223 2.0 C254500300224 101.0 256.0 150.0 0.006 38.0C254500300225 2.0 C254500300226 101.0 258.0 1.0 97.0 C254500300227 0.7 2.0 C254500300228 101.0 258.0 1.0 113.0 C254500300229 0.24 2.0 C254500300230 102.0 259.0 97.0 C254500300231 0.006 C254500300232 102.0 259.0 113.0 0.035 30.0C254500300233 C254500300234 102.0 259.0 122.0 0.006 70.0C254500300235 C254500300236 ENDDATA 214 0 C254500300237 ENDSUBENT 236 0 C254500399999 ENDENTRY 3 0 C254599999999