ENTRY 41732 20210118 41924173200000001 SUBENT 41732001 20210118 41924173200100001 BIB 9 23 4173200100002 TITLE Investigations of the hard beta radiation from 252Cf 4173200100003 fission 4173200100004 AUTHOR (A.A.Borovoy, Yu.V.Klimov, V.I.Kopeykin, K.D.Shkolnik) 4173200100005 REFERENCE (J,JP/G,5,723,1979) 4173200100006 INSTITUTE (4RUSKUR) 4173200100007 SAMPLE Several 252Cf sources, largest activity 1.8E+5 fis/sec.4173200100008 DETECTOR (SCIN) 4173200100009 E-detector 4173200100010 - plastic truncated cone of 110 mm high, 100 mm and 4173200100011 70 mm diameters, or 4173200100012 - stilbene crystal of 70 x 70 mm. 4173200100013 Viewed by FEU-49 and FEU-110 photomultipliers, 4173200100014 respectively. 4173200100015 dE detector - 10 mm diameter, 0.4 mm thick plastic 4173200100016 disc with two FEU-97 photomultipliers. 4173200100017 Spectrometer was calibrated by 207Bi(482 and 991 keV 4173200100018 conversion lines), 144Ce - 144Pr( 2997 keV beta-decay),4173200100019 42K( 3519 keV beta), 38Cl(4913 keV beta) radioactive 4173200100020 sources. 4173200100021 METHOD (EDE) Several runs. 4173200100022 ADD-RES BETA- yield in Cf fission for Ebata>20 MeV was 4173200100023 measured to be 2.E-8 beta/fission. 4173200100024 HISTORY (20210118C) M.M. 4173200100025 ENDBIB 23 0 4173200100026 NOCOMMON 0 0 4173200100027 ENDSUBENT 26 0 4173200199999 SUBENT 41732002 20210118 41924173200200001 BIB 4 8 4173200200002 REACTION (98-CF-252(0,F)ELEM/MASS,TER,FY) 4173200200003 DECAY-DATA ((1.)7-N-12,,B-,16400.) 4173200200004 ((2.)3-LI-11,,B-,20500.,0.39) 4173200200005 ADD-RES .Total yield of isotopes for beta-decay < 14 MeV 4173200200006 (8Li,8,B,12,B,13B,14B,13O)