ENTRY O1356 20160206 O056O135600000001 SUBENT O1356001 20160206 O056O135600100001 BIB 15 59 O135600100002 TITLE Cross sections and thick target yields of (alpha,pxn) O135600100003 reactions on natural platinum. O135600100004 REFERENCE (J,JRN,150,15,1991) O135600100005 AUTHOR (O.A.Capurro, O.S.Bonesso, S.J.Nassiff) O135600100006 INSTITUTE (3ARGCNE) O135600100007 MONITOR (29-CU-65(A,2N)31-GA-67,,SIG) O135600100008 (29-CU-63(A,X)30-ZN-65,CUM,SIG) The reactions were usedO135600100009 to determine the beam incident energy and to calculateO135600100010 the alpha-particles flux. O135600100011 The fluxes obtained through both standard functions O135600100012 differ only in 1%, whereas the error in its O135600100013 determination is less than 11%. O135600100014 MONIT-REF (B0156001,N.T.Porile+,J,PR,116,1193,1959) O135600100015 SAMPLE The targets were assembled according to the O135600100016 stacked-foils method. Cu-foils were put between the Pt-O135600100017 foils. The Pt-foils were analyzed spectroscopically, O135600100018 the quantities of impurities were negligible. The O135600100019 surface density of these foils was 18.9-mg/cm**2, O135600100020 whereas the one corresponding to Cu was 28.8 mg/cm**2. O135600100021 Each one of the foils constititing a target was wrappedO135600100022 in Al of surface density 3.72-mg/cm**2, in order to O135600100023 avoid the loss of radioactive nuclei by recoiling. O135600100024 DETECTOR (GE-IN) An intrinsic Ge-detector of high resolution- O135600100025 FACILITY (ISOCY,2GERKFK) O135600100026 METHOD (STTA) O135600100027 (ACTIV) O135600100028 (INTB) Beam intensity was varied between 5 and 8 O135600100029 microAmperes. O135600100030 (GSPEC) O135600100031 ANALYSIS (DECAY,AREA) O135600100032 ADD-RES (TTY-C) The yields of thick targets were calculated O135600100033 and a comparison between the cross sections obtained O135600100034 using the hybrid model of pre-equilibrium reactions in O135600100035 combination with the statistical model of compound O135600100036 nucleus is presented. O135600100037 REL-REF (R,O1250001,M.J.Ozafran+,J,JRN,131,467,1989) Needeed O135600100038 information to find the connection between the authors'O135600100039 understanding of "cumulative cross section" and O135600100040 generaly accepted one. O135600100041 ERR-ANALYS (ERR-1) The uncertainty of target foil thickness. O135600100042 No corrections for changes in dispersion due to the O135600100043 non-uniformity of the foils thicknesses were made. O135600100044 (ERR-2,,11.) error in flux determination O135600100045 (ERR-S,,5.) Statistical error O135600100046 (EN-ERR) The beam energy uncertainty on the target for O135600100047 10-MeV alpha-particles. O135600100048 (ERR-T).The error in the values of the cross sections O135600100049 were evaluated by propagating in quadrature of the O135600100050 individual magnitudes involved in these determination- O135600100051 absolute efficiency of the detector, target thickness, O135600100052 alpha-particle flux, photopeak areas, time of O135600100053 measurement and of irradiations and all those O135600100054 concerning the disintegration scheme-gamma intensity, O135600100055 disintegration period, atomic weight. O135600100056 HISTORY (20060223C) O135600100057 (20060602A) Subents 5-7 were corrected according to O135600100058 O.Schwerer remark. O135600100059 (20060602U) Last checking has been done. O135600100060 (20160206A) SD: REACTION code corrected in Subents 2-7.O135600100061 ENDBIB 59 0 O135600100062 COMMON 2 3 O135600100063 ERR-1 EN-ERR O135600100064 PER-CENT MEV O135600100065 2. 0.5 O135600100066 ENDCOMMON 3 0 O135600100067 ENDSUBENT 66 0 O135600199999 SUBENT O1356002 20160206 O056O135600200001 BIB 5 24 O135600200002 REACTION (78-PT-0(A,X)79-AU-194,,SIG,,DAM) see COMMENT O135600200003 DECAY-DATA (79-AU-194-G,39.5HR,DG,328.4,0.63) O135600200004 COMMENT -By authors. Order to detect the presence of 194-Au, O135600200005 the 328.4 KeV photopeak was followed. It is O135600200006 interesting to note that 194-g-Ir (19.15hr) and O135600200007 194-m-Ir(171days) decay through the same excited level O135600200008 of 194-Pt, therefore, the analyzed ray is shared by O135600200009 three istopes. As the measurements were done 9 days O135600200010 after the end of the irradiation, the contributions of O135600200011 the 194-g-Ir may be neglected. The contributions of O135600200012 the isomer of 171 days may be neglected too since the O135600200013 measurements lasted not more than 10 minutes. The O135600200014 194-Au is fed by its parent, 194Hg (260 years), and O135600200015 this additional formation was subtracted. This O135600200016 correction is neglected due to the very long period of O135600200017 the mother. O135600200018 /by Compiler/ To get presentation of cr.section in O135600200019 usual form, someone should multiplying values on the O135600200020 average atomic mass of target (in this case: ~ 195.06) O135600200021 STATUS (TABLE) Table 1 of JRN,150,15,1991 O135600200022 HISTORY (20160206A) SD: SF5=IND deleted, SF8=DAM added in O135600200023 REACTION code. Compiler's derived data: DATA(-ERR) O135600200024 deleted; author's data: (MISC(-ERR) -> DATA(-ERR). O135600200025 Explanation added to COMMENT. O135600200026 ENDBIB 24 0 O135600200027 NOCOMMON 0 0 O135600200028 DATA 3 27 O135600200029 EN DATA ERR-T O135600200030 MEV MB MB O135600200031 82.2 0.288 0.038 O135600200032 81.3 0.290 0.038 O135600200033 78.6 0.304 0.040 O135600200034 77.7 0.320 0.042 O135600200035 76.8 0.322 0.043 O135600200036 75.9 0.315 0.042 O135600200037 75.0 0.337 0.045 O135600200038 74.1 0.332 0.044 O135600200039 73.2 0.332 0.044 O135600200040 72.3 0.313 0.041 O135600200041 71.4 0.309 0.041 O135600200042 68.4 0.290 0.038 O135600200043 67.4 0.295 0.039 O135600200044 66.4 0.275 0.036 O135600200045 65.4 0.248 0.033 O135600200046 64.4 0.255 0.034 O135600200047 60.2 0.215 0.029 O135600200048 59.1 0.192 0.026 O135600200049 58.1 0.180 0.024 O135600200050 57.0 0.168 0.022 O135600200051 55.9 0.163 0.022 O135600200052 51.2 0.0862 0.0117 O135600200053 48.8 0.0625 0.0087 O135600200054 43.8 0.0617 0.0096 O135600200055 41.1 0.0298 0.0056 O135600200056 39.8 0.0233 0.0047 O135600200057 34.1 0.0045 0.00047 O135600200058 ENDDATA 29 0 O135600200059 ENDSUBENT 58 0 O135600299999 SUBENT O1356003 20160206 O056O135600300001 BIB 5 22 O135600300002 REACTION (78-PT-0(A,X)79-AU-195,CUM,SIG,,DAM) see COMMENT O135600300003 DECAY-DATA (79-AU-195-G,183.D,DG,98.9,0.109) O135600300004 COMMENT -By authors. The decay of 195(m+g)Au (183 d) was O135600300005 studied considering the gamma-ray 98.9 KeV. There are O135600300006 three more isotopes which by their disintegration O135600300007 populate the same excited level of 195-Pt: 195-m-Ir O135600300008 (3.8 hours), 195-g-Ir (2.5 hours) and 195-m-pt (4.02 O135600300009 days). These isotopes are neglected since they were O135600300010 measured forty days after the end of irradiation. As O135600300011 regards 195 Au, obtained from the decay of 195-m-Hg andO135600300012 195-g-Hg, the contributions of the 41.6 hours isomer O135600300013 was the only one that could be discounted. The other O135600300014 contributions could not be taken into account, since O135600300015 the excitation function for 195-g-Hg was not available.O135600300016 /by Compiler/ To get presentation of cr.section in O135600300017 usual form, someone should multiplying values on the O135600300018 average atomic mass of target (in this case: ~ 195.06) O135600300019 STATUS (TABLE) Table 1 of JRN,150,15,1991 O135600300020 HISTORY (20160206A) SD: SF8=DAM added in REACTION code. O135600300021 Compiler's derived data: DATA(-ERR) deleted; O135600300022 author's data: (MISC(-ERR) -> DATA(-ERR). O135600300023 Explanation added to COMMENT. O135600300024 ENDBIB 22 0 O135600300025 NOCOMMON 0 0 O135600300026 DATA 3 27 O135600300027 EN DATA ERR-T O135600300028 MEV MB MB O135600300029 82.2 0.622 0.126 O135600300030 81.3 1.04 0.21 O135600300031 78.6 0.472 0.095 O135600300032 77.7 0.432 0.087 O135600300033 76.8 0.371 0.075 O135600300034 75.9 0.394 0.080 O135600300035 75.0 0.384 0.077 O135600300036 74.1 0.449 0.091 O135600300037 73.2 0.355 0.072 O135600300038 72.3 0.420 0.085 O135600300039 71.4 0.353 0.071 O135600300040 68.4 0.368 0.074 O135600300041 67.4 0.370 0.075 O135600300042 66.4 0.438 0.088 O135600300043 65.4 0.364 0.074 O135600300044 64.4 0.292 0.059 O135600300045 60.2 0.368 0.074 O135600300046 59.1 0.332 0.067 O135600300047 58.1 0.302 0.065 O135600300048 57.0 0.363 0.073 O135600300049 55.9 0.258 0.052 O135600300050 51.2 0.231 0.047 O135600300051 48.8 0.165 0.033 O135600300052 43.8 0.146 0.030 O135600300053 41.1 0.128 0.026 O135600300054 39.8 0.166 0.033 O135600300055 38.4 0.116 0.023 O135600300056 ENDDATA 29 0 O135600300057 ENDSUBENT 56 0 O135600399999 SUBENT O1356004 20160206 O056O135600400001 BIB 5 24 O135600400002 REACTION (78-PT-0(A,X)79-AU-196,,SIG,,DAM) see COMMENT O135600400003 DECAY-DATA (79-AU-196-G,6.18D,DG,426.1,0.072,DG,355.7,0.869) O135600400004 (79-AU-196-M1,8.1SEC) O135600400005 COMMENT - By authors. The activities of 196(m+g)-Au (8.1 sec,O135600400006 6.18 days) were determined by means of the photopeak ofO135600400007 426.1 KeV and 355.7 KeV. The contribution of the O135600400008 196-Ir (52 S, 1.4 hour) isomer to the 355.7 KeV O135600400009 gamma-ray was not considered since the measurements O135600400010 were done 9 days after the irradiation. By the way, O135600400011 the 196-Hg and 196-Pt isotopes are stable and thereforeO135600400012 they do not lead to the formation of 196-Au. O135600400013 Nevertheless, there exists an isomeric state of 196-AuO135600400014 (9.7 hours), which decays by isomeric transition to anO135600400015 8.2 seconds isomer and afterwards to the ground state .O135600400016 These contributions could not be subtracted since the O135600400017 cross sections for this isomer were unknown. O135600400018 /by Compiler/ To get presentation of cr.section in O135600400019 usual form, someone should multiplying values on the O135600400020 average atomic mass of target (in this case: ~ 195.06) O135600400021 STATUS (TABLE) Table 1 of JRN,150,15,1991 O135600400022 HISTORY (20160206A) SD: SF4=Au-196g -> Au-196; SF5=IND/M+ O135600400023 deleted; SF8=DAM added to REACTION code. Compiler's O135600400024 derived data: DATA(-ERR) deleted; author's data: O135600400025 (MISC(-ERR) -> DATA(-ERR).Explanation added to COMMENTO135600400026 ENDBIB 24 0 O135600400027 NOCOMMON 0 0 O135600400028 DATA 3 32 O135600400029 EN DATA ERR-T O135600400030 MEV MB MB O135600400031 82.2 0.107 0.014 O135600400032 81.3 0.113 0.015 O135600400033 78.6 0.127 0.016 O135600400034 77.7 0.130 0.017 O135600400035 76.8 0.138 0.017 O135600400036 75.9 0.140 0.018 O135600400037 75.0 0.142 0.018 O135600400038 74.1 0.159 0.020 O135600400039 73.2 0.150 0.019 O135600400040 72.3 0.147 0.018 O135600400041 71.4 0.149 0.019 O135600400042 68.4 0.149 0.019 O135600400043 67.4 0.159 0.020 O135600400044 66.4 0.151 0.019 O135600400045 65.4 0.140 0.018 O135600400046 64.4 0.138 0.017 O135600400047 60.2 0.158 0.020 O135600400048 59.1 0.15 0.019 O135600400049 58.1 0.158 0.020 O135600400050 57.0 0.164 0.021 O135600400051 55.9 0.159 0.020 O135600400052 51.2 0.130 0.016 O135600400053 50.0 0.133 0.017 O135600400054 48.8 0.131 0.017 O135600400055 47.6 0.122 0.016 O135600400056 46.3 0.108 0.014 O135600400057 43.8 0.131 0.017 O135600400058 42.5 0.106 0.014 O135600400059 41.1 0.0913 0.0118 O135600400060 39.8 0.0838 0.0109 O135600400061 38.4 0.0611 0.0082 O135600400062 34.1 0.0242 0.0034 O135600400063 ENDDATA 34 0 O135600400064 ENDSUBENT 63 0 O135600499999 SUBENT O1356005 20160206 O056O135600500001 BIB 5 9 O135600500002 REACTION (78-PT-0(A,X)79-AU-198-M,,SIG,,DAM) see COMMENT O135600500003 DECAY-DATA (79-AU-198-M,2.3D,DG,214.9,0.769) O135600500004 COMMENT /by Compiler/ To get presentation of cr.section in O135600500005 usual form, someone should multiplying values on the O135600500006 average atomic mass of target (in this case: ~ 195.06) O135600500007 STATUS (TABLE) Table 2 of JRN,150,15,1991 O135600500008 HISTORY (20160206A) SD: SF8=DAM added to REACTION code. O135600500009 Compiler's derived data: DATA(-ERR) deleted; author's O135600500010 data: (MISC(-ERR) -> DATA(-ERR). COMMENT was added. O135600500011 ENDBIB 9 0 O135600500012 NOCOMMON 0 0 O135600500013 DATA 3 33 O135600500014 EN DATA ERR-T O135600500015 MEV MB MB O135600500016 82.2 0.00610 0.00120 O135600500017 81.3 0.00632 0.00121 O135600500018 78.6 0.00767 0.00132 O135600500019 77.7 0.00615 0.00118 O135600500020 76.8 0.00804 0.00133 O135600500021 75.9 0.00968 0.00151 O135600500022 75.0 0.0101 0.0016 O135600500023 74.1 0.0108 0.0016 O135600500024 73.2 0.0102 0.0016 O135600500025 72.3 0.0102 0.0015 O135600500026 71.4 0.00971 0.00148 O135600500027 68.4 0.00921 0.00147 O135600500028 67.4 0.0103 0.0016 O135600500029 66.4 0.0116 0.0017 O135600500030 65.4 0.0111 0.0016 O135600500031 64.4 0.0118 0.0017 O135600500032 60.2 0.0130 0.0019 O135600500033 59.1 0.0118 0.0017 O135600500034 58.1 0.0106 0.0016 O135600500035 57.0 0.0126 0.0019 O135600500036 55.9 0.0125 0.0018 O135600500037 51.2 0.00958 0.00149 O135600500038 50.0 0.00913 0.00144 O135600500039 48.8 0.00892 0.00141 O135600500040 47.6 0.00784 0.00127 O135600500041 46.3 0.00762 0.00123 O135600500042 43.8 0.00821 0.00133 O135600500043 42.5 0.00733 0.00121 O135600500044 41.1 0.00831 0.00132 O135600500045 39.8 0.00701 0.00117 O135600500046 38.4 0.00510 0.00092 O135600500047 34.1 0.00145 0.00040 O135600500048 21.8 0.00016 0.00009 O135600500049 ENDDATA 35 0 O135600500050 ENDSUBENT 49 0 O135600599999 SUBENT O1356006 20160206 O056O135600600001 BIB 5 20 O135600600002 REACTION (78-PT-0(A,X)79-AU-198-G,,SIG,,DAM) see COMMENT O135600600003 DECAY-DATA (79-AU-198-G,2.7D,DG,411.8,0.955) O135600600004 COMMENT -By authors. The disintegration of 198-g Au was O135600600005 followed by the photopeak of 411.8 KeV the only O135600600006 discount done is the one corresponding to the O135600600007 contribution of the 2.3 days isomer. The isotope O135600600008 191-Pt (2.8 days) decays emitting a gamma-ray of 409.4 O135600600009 KeV, which cannot be separated from the O135600600010 gamma-corresponding to 198-g-Au by the detector used inO135600600011 the measurements. Nevertheless, by means of the crossO135600600012 sections of 191-Pt, it could be verified that the 409.4O135600600013 keV photopeak only contributes 2% to the whole area. O135600600014 /by Compiler/ To get presentation of cr.section in O135600600015 usual form, someone should multiplying values on the O135600600016 average atomic mass of target (in this case: ~ 195.06) O135600600017 STATUS (TABLE) Table 2 of JRN,150,15,1991 O135600600018 HISTORY (20160206A) SD: SF8=DAM added to REACTION code. O135600600019 Compiler's derived data: DATA(-ERR) deleted; author's O135600600020 data: (MISC(-ERR) -> DATA(-ERR). Explanation added O135600600021 to COMMENT. O135600600022 ENDBIB 20 0 O135600600023 NOCOMMON 0 0 O135600600024 DATA 3 33 O135600600025 EN DATA ERR-T O135600600026 MEV MB MB O135600600027 82.2 0.0876 0.0106 O135600600028 81.3 0.0945 0.0114 O135600600029 78.6 0.0811 0.0098 O135600600030 77.7 0.0672 0.0081 O135600600031 76.8 0.0628 0.0076 O135600600032 75.9 0.0604 0.0073 O135600600033 75.0 0.0563 0.0068 O135600600034 74.1 0.0442 0.0054 O135600600035 73.2 0.0402 0.0049 O135600600036 72.3 0.0356 0.0044 O135600600037 71.4 0.0390 0.0047 O135600600038 68.4 0.0445 0.0054 O135600600039 67.4 0.0493 0.0060 O135600600040 66.4 0.0350 0.0043 O135600600041 65.4 0.0306 0.0038 O135600600042 64.4 0.0370 0.0045 O135600600043 60.2 0.0336 0.0041 O135600600044 59.1 0.0372 0.0045 O135600600045 58.1 0.0377 0.0046 O135600600046 57.0 0.0354 0.0043 O135600600047 55.9 0.0368 0.0045 O135600600048 51.2 0.0336 0.0041 O135600600049 50.0 0.0298 0.0036 O135600600050 48.8 0.0300 0.0037 O135600600051 47.6 0.0274 0.0034 O135600600052 46.3 0.0231 0.0028 O135600600053 43.8 0.0281 0.0035 O135600600054 42.5 0.0212 0.0026 O135600600055 41.1 0.0192 0.0024 O135600600056 39.8 0.0209 0.0026 O135600600057 38.4 0.0263 0.0032 O135600600058 34.1 0.0222 0.0027 O135600600059 21.8 0.00257 0.00032 O135600600060 ENDDATA 35 0 O135600600061 ENDSUBENT 60 0 O135600699999 SUBENT O1356007 20160206 O056O135600700001 BIB 5 23 O135600700002 REACTION (78-PT-0(A,X)79-AU-199,,SIG,,DAM) see COMMENT O135600700003 DECAY-DATA (79-AU-199,3.14D,DG,158.4,0.369) O135600700004 COMMENT -By authors. The activities of 199-Au were calculated O135600700005 with the areas obtained in the measurement of the O135600700006 photopeak of 158.4 keV. This gamma-deexcitation is O135600700007 shared by the 199m-Hg (42.6 min) in its decay to 199Hg,O135600700008 but at the time of the measurements it was completely O135600700009 decayed. On the other hand, the 199-Pt isotope feeds O135600700010 the main isotope and this discount could not be O135600700011 performed because the corresponding excitation functionO135600700012 was not available. In spite of this difficulty, the O135600700013 formation of this isotope is believed to be of no O135600700014 importance since it is only obtained by the (alpha,2pn)O135600700015 reaction on 198-Pt, its isotopic abundance in the O135600700016 irradiated target being only 7.2%. O135600700017 /by Compiler/ To get presentation of cr.section in O135600700018 usual form, someone should multiplying values on the O135600700019 average atomic mass of target (in this case: ~ 195.06) O135600700020 STATUS (TABLE) Table 2 of JRN,150,15,1991 O135600700021 HISTORY (20160206A) SD: SF8=DAM added to REACTION code. O135600700022 Compiler's derived data: DATA(-ERR) deleted; author's O135600700023 data: (MISC(-ERR) -> DATA(-ERR). Explanation added O135600700024 to COMMENT. O135600700025 ENDBIB 23 0 O135600700026 NOCOMMON 0 0 O135600700027 DATA 3 31 O135600700028 EN DATA ERR-T O135600700029 MEV MB MB O135600700030 78.6 0.0218 0.0028 O135600700031 77.7 0.0206 0.0026 O135600700032 76.8 0.0161 0.0022 O135600700033 75.9 0.0188 0.0024 O135600700034 75.0 0.0175 0.0023 O135600700035 74.1 0.0191 0.0025 O135600700036 73.2 0.0194 0.0025 O135600700037 72.3 0.0189 0.0024 O135600700038 71.4 0.0166 0.0021 O135600700039 68.4 0.0186 0.0024 O135600700040 67.4 0.0172 0.0029 O135600700041 66.4 0.0191 0.0024 O135600700042 65.4 0.0145 0.0028 O135600700043 64.4 0.0189 0.0024 O135600700044 60.2 0.0222 0.0028 O135600700045 59.1 0.0230 0.0029 O135600700046 58.1 0.0214 0.0027 O135600700047 57.0 0.0226 0.0029 O135600700048 55.9 0.0231 0.0029 O135600700049 51.2 0.0246 0.0031 O135600700050 50.0 0.0243 0.0030 O135600700051 48.8 0.0250 0.0031 O135600700052 47.6 0.0187 0.0024 O135600700053 46.3 0.0215 0.0030 O135600700054 43.8 0.0199 0.0032 O135600700055 42.5 0.0207 0.0026 O135600700056 41.1 0.0192 0.0024 O135600700057 39.8 0.0174 0.0022 O135600700058 38.4 0.0137 0.0018 O135600700059 34.1 0.00721 0.00090 O135600700060 21.8 0.00176 0.00024 O135600700061 ENDDATA 33 0 O135600700062 ENDSUBENT 61 0 O135600799999 ENDENTRY 7 0 O135699999999