ENTRY O0615 20230406 O095O0615 0 1 SUBENT O0615001 20230406 O095O0615 1 1 BIB 17 52 O0615 1 2 TITLE Relative mass yields in proton induced fission on O0615 1 3 natural uranium, from delayed gamma rays analysis O0615 1 4 AUTHOR (A.Calboreanu,Em.Cincu,C.Pencea,O.Salagean,I.Manzatu) O0615 1 5 REFERENCE (J,RRP,21,69,1976) O0615 1 6 INSTITUTE (3RUMBUC) O0615 1 7 REL-REF (R,,S.C.Burnett+,J,PR/C,3,2034,1971) Authors used the O0615 1 8 distribution of the total average number of neutrons O0615 1 9 emitted from the prompt fragments in 12 MeV proton O0615 1 10 energy induced fission on 238-U. O0615 1 11 (R,O0193001,S.Baba+,J,NP/A,175,177,1971) Authors used O0615 1 12 the results to derive the appropriate FWHM values, O0615 1 13 the centers of the light and heavy peaks and the O0615 1 14 mass number of the centre of the whole mass O0615 1 15 distribution. O0615 1 16 (R,,C.F.Williamson+,R,CEA-R-3042,1966) Stopping power. O0615 1 17 (A,T0044003,G.L.Bate+,J,PR,133,B1471,1964) O0615 1 18 FACILITY (CYCLO,3RUMBUC) Y-120 cyclotron O0615 1 19 SAMPLE The target assembly consisted of several natural O0615 1 20 uranium targets 1.2 mg/cm2 thick, each being sandwichedO0615 1 21 between 4.2 mg/cm2 aluminum catcher foils to stop the O0615 1 22 fission products and to degrade the proton beam energy.O0615 1 23 The targets were prepared by depositing a solution O0615 1 24 of uranium acetate on aluminum backings. O0615 1 25 DETECTOR (GELI) A 15 cm3 Ge-Li detector. O0615 1 26 METHOD (BCINT) Relative beam monitoring. O0615 1 27 (EXTB,STTA,EDEG) The energy values in the stack O0615 1 28 were calculated from tables - See REL-REF. O0615 1 29 The Initial proton energy was 13.2 MeV. O0615 1 30 (ACTIV,FPGAM) Direct Gamma-Ray Spectrometry O0615 1 31 of unseparated fission products. O0615 1 32 MONITOR (92-U-238(P,F),,SIG) O0615 1 33 MONIT-REF (P0028001,G.R.Choppin+,J,PR,131,2149,1963) Data were O0615 1 34 normalized at 11.9 MeV. The cross section of the given O0615 1 35 reaction is not compiled in the given EXFOR Entry. O0615 1 36 ASSUMED The product mass distribution was constructed with O0615 1 37 an assumption that there are two independent modes O0615 1 38 of fission, symmetric and asymmetric, each of them O0615 1 39 of a Gaussian form. O0615 1 40 ANALYSIS (DECAY) The gamma emitters were identified by comparingO0615 1 41 the energy values, the half-lives and the relative O0615 1 42 gamma lines intensities. O0615 1 43 ERR-ANALYS Not given. O0615 1 44 ADD-RES (A-DIS) Relative fission yields for 9 isobaric chains. O0615 1 45 STATUS (CURVE) Fig.3 from Rev.Roum.Phys.,21(1976)69 O0615 1 46 HISTORY (19980220C) AP: By Khlopin's Institute. O0615 1 47 (19980310A) Method was corrected by CAJAD. O0615 1 48 (19980426A) AP: Method, REL-REF, MONIT-REF and ANALYSISO0615 1 49 were corrected. O0615 1 50 (19980605A) AP: DETECTOR code is corrected. O0615 1 51 (20000420U) Last checking has been done. O0615 1 52 (20000424A) DATE is corrected O0615 1 53 (20230406A) SD: Corrections in all Subents. O0615 1 54 ENDBIB 52 0 O0615 1 55 NOCOMMON 0 0 O0615 1 56 ENDSUBENT 55 0 O0615 199999 SUBENT O0615002 20230406 O095O0615 2 1 BIB 2 2 O0615 2 2 REACTION (92-U-0(P,F),,SIG) O0615 2 3 HISTORY (20230406A) SD: SF9=EXP deleted from REACTION code. O0615 2 4 ENDBIB 2 0 O0615 2 5 NOCOMMON 0 0 O0615 2 6 DATA 2 7 O0615 2 7 EN DATA O0615 2 8 MEV MB O0615 2 9 11.3 98.3 O0615 2 10 11.6 119. O0615 2 11 11.9 160. O0615 2 12 12.3 229. O0615 2 13 12.6 239. O0615 2 14 12.9 301. O0615 2 15 13.2 272. O0615 2 16 ENDDATA 9 0 O0615 2 17 ENDSUBENT 16 0 O0615 299999 ENDENTRY 2 0 O061599999999