ENTRY 30713 20100305 31463071300000001 SUBENT 30713001 20100305 31463071300100001 BIB 9 45 3071300100002 INSTITUTE (3CPRAEP) 3071300100003 REFERENCE (J,CNP,4,41,198202) Main reference in Chinese 3071300100004 (J,CP,3,129,198303) English of CNP 4,41 3071300100005 (J,CNP,5,289,198311) further analysis, in Chinese 3071300100006 (J,CP,4,641,198409) English of CNP,5,289. 3071300100007 AUTHOR (Bao Zongyu,Han Hongyin,Meng Jiangchen, 3071300100008 Huang Shengnian) 3071300100009 TITLE Fission fragment kinetic energy and mass distributions 3071300100010 measurement for Cf-252 spontaneous fission 3071300100011 METHOD Self-transferred source of Cf-252 spontaneous fission 3071300100012 fission fragments detected by Au-Si detectors. Mass 3071300100013 distribution and correlation of fragment kinetic energy3071300100014 versus fragment mass derived from the data obtained. 3071300100015 Fragment mass resolution about 5 u. Fragment energy 3071300100016 resolution about 2 MeV. 7.6 x 10**6 events collected. 3071300100017 SAMPLE The 252Cf source was deposited by self-transfer 3071300100018 method onto a VYNS film of about lO mu-g/cm2 covered 3071300100019 with a layer of gold of 10 mu-g/cm2 thick by vacuum 3071300100020 evaporation. The VYNS film was spread on an aluminum 3071300100021 ring of inner diameter of 10 mm and the 252Cf 3071300100022 deposit was of 5 mm in diam. The source strength was 3071300100023 2 x 10**3 fission per second. 3071300100024 DETECTOR (SIBAR) Two gold-silicon surface-barrier detectors 3071300100025 with low resistance were arranged face to face on 3071300100026 both sides of the source 3071300100027 ADD-RES The aim of this work is to confirm some structures in 3071300100028 the mass distributions at fixed total postneutron-emis-3071300100029 sion fragment kinetic energy, and in total postneutron-3071300100030 emission fission fragment kinetic energy distribution 3071300100031 at fixed masses. The fine structures on mass distribu- 3071300100032 tion(m 107,112,118) at high kinetic energy region (Ek 3071300100033 200-216MeV)(see fig.3 of CNP 4,41,8202) and the fine 3071300100034 structures at m 132,135,140,145,150 155 at the fixed 3071300100035 total kinetic energies and at the fixed excitation 3071300100036 energies (see fig.1 and fig.2 of CNP 5,289,8311) have 3071300100037 been observed. No numerical data are available from 3071300100038 paper. But the data for fig.4 of CNP 4,41,8202,which is3071300100039 the total preneutron-emission fragment kinetic energy a3071300100040 a function of the preneutron-emission fragment mass 3071300100041 should be obtained from the authors. 3071300100042 HISTORY (19860822C) 3071300100043 (20100303A) SD:Updated to new date formats,lower case. 3071300100044 REACTION code in Subent 002 was changed 3071300100045 according to EXFOR rules. Data from fig.43071300100046 of CNP 4,41,8202 were digitized. 3071300100047 ENDBIB 45 0 3071300100048 NOCOMMON 0 0 3071300100049 ENDSUBENT 48 0 3071300199999 SUBENT 30713002 20100305 31463071300200001 BIB 4 9 3071300200002 REACTION (98-CF-252(0,F)MASS,PRE,KE,LF+HF) 3071300200003 ERR-ANALYS (MASS-ERR-D) Digitizing error 3071300200004 (ERR-DIG) Digitizing error 3071300200005 (DATA-ERR) Nothing said about uncertainties 3071300200006 STATUS (CURVE) See fig.4 of Chin.Phys.3,129. The corresponding3071300200007 numerical data have not yet been obtained from 3071300200008 author. 3071300200009 HISTORY (20100303A) SD: REACTION code was changed according 3071300200010 to EXFOR rules. Data were digitized. 3071300200011 ENDBIB 9 0 3071300200012 COMMON 2 3 3071300200013 MASS-ERR-D ERR-DIG 3071300200014 NO-DIM MEV 3071300200015 0.07 0.07 3071300200016 ENDCOMMON 3 0 3071300200017 DATA 3 29 3071300200018 MASS DATA DATA-ERR 3071300200019 NO-DIM MEV MEV 3071300200020 126.28 187.74 0.53625 3071300200021 127.70 190.02 0.44688 3071300200022 128.88 191.85 0.44958 3071300200023 130.75 193.79 0.53896 3071300200024 132.16 193.92 0.44957 3071300200025 133.60 192.80 0.53625 3071300200026 135.13 191.59 0.35750 3071300200027 136.56 190.65 0.53896 3071300200028 138.16 190.08 0.53625 3071300200029 139.60 188.87 0.53896 3071300200030 141.21 187.85 0.62833 3071300200031 142.48 186.63 0.62564 3071300200032 144.54 185.35 0.53627 3071300200033 145.77 185.21 0.53625 3071300200034 147.00 185.52 0.53625 3071300200035 148.71 183.87 0.36021 3071300200036 149.99 182.48 0.53625 3071300200037 151.80 180.66 0.53625 3071300200038 153.08 178.82 0.44958 3071300200039 154.53 177.43 0.44688 3071300200040 156.17 175.60 0.44688 3071300200041 157.61 174.39 0.35751 3071300200042 159.16 172.47 0.98044 3071300200043 160.52 171.08 1.2513 3071300200044 161.85 170.77 1.2513 3071300200045 163.54 170.10 0.98314 3071300200046 165.03 170.06 1.0725 3071300200047 166.50 170.82 1.5167 3071300200048 168.01 173.19 1.4273 3071300200049 ENDDATA 31 0 3071300200050 ENDSUBENT 49 0 3071300299999 ENDENTRY 2 0 3071399999999