ENTRY 21116 20200120 22852111600000001 SUBENT 21116001 20200120 22852111600100001 BIB 15 41 2111600100002 TITLE On the ratio between the activation cross-sections 2111600100003 of Sr-84 and Sr-88 for slow neutrons 2111600100004 AUTHOR (M.Asdente,A.Bisi,E.Germagnoli,L.Zappa) 2111600100005 INSTITUTE (2ITYMIL) 2111600100006 REFERENCE (J,NP,1,420,1956) 2111600100007 FACILITY (REAC,2UK HAR) Reactor irradiated samples provided by 2111600100008 AERE Harwell. 2111600100009 INC-SOURCE (REAC) Reactor. 2111600100010 INC-SPECT No other information than slow neutrons given. 2111600100011 SAMPLE Sr-Co3 samples. 2111600100012 METHOD (ACTIV) Activation. 2111600100013 DETECTOR For the Sr-85 activity 2111600100014 (PROPC) Ar/ch4 proportional counter of known 2111600100015 efficiency to measure K x-rays from K-capture 2111600100016 (COIN,PROPC,SCIN) x-gamma coincidence spectrometer 2111600100017 consisting of proportional counter to detect 2111600100018 K x-rays and NaI(Tl) scintillator to detect 2111600100019 gammas. 2111600100020 (SCIN) Scintillator for comparison of 513 keV Sr-85 2111600100021 photopeak and the annihilation radiation photo-2111600100022 peak from Na-22 whose absolute intensity had 2111600100023 been calibrated. 2111600100024 For the Sr-89 activity 2111600100025 .intermediate image magnetic beta spectrometer. 2111600100026 Transmission measured using Cs-137 source calibrated 2111600100027 with the Ar/ch4 proportional counter. 2111600100028 DECAY-DATA (38-SR-85-G,65.D,DG,513.) K conversion coeff. 2111600100029 Of the 513 keV gammas was taken as 0.008. 2111600100030 (38-SR-89,50.4D,B-,1462.,1.) 2111600100031 RAD-DET (38-SR-85,XR,DG) K x-rays from Sr-85 and 513 keV 2111600100032 gammas from Rb-85 following the decay from Sr-85. 2111600100033 (38-SR-89,B-) decay betas from Sr-89. 2111600100034 CORRECTION Correction for gammas from the isomeric level of 2111600100035 Rb-85 (half-life 0.9 micro-sec) missed by the 2111600100036 coincidence apparatus because of its relatively 2111600100037 short (3.7 micro-sec) resolving time. 2111600100038 ERR-ANALYS (DATA-ERR) No information about source of uncertainty 2111600100039 HISTORY (19790918C) 2111600100040 (20200120A) SD:Updated to new date formats,lower case. 2111600100041 DECAY-DATA corrected in Subent 001. STATUS deleted. 2111600100042 ERR-ANALYS added. 2111600100043 ENDBIB 41 0 2111600100044 COMMON 1 3 2111600100045 EN-DUMMY 2111600100046 EV 2111600100047 2.5300E-02 2111600100048 ENDCOMMON 3 0 2111600100049 ENDSUBENT 48 0 2111600199999 SUBENT 21116002 20200120 22852111600200001 BIB 3 6 2111600200002 REACTION ((38-SR-84(N,G)38-SR-85-G,M+,SIG,,SPA)/ 2111600200003 (38-SR-88(N,G)38-SR-89,,SIG,,SPA)) 2111600200004 STATUS (TABLE) From text on p. 424 of Nucl.Phys.,1(1956)420 2111600200005 HISTORY (20200120A) SD: SF5=M+ added to REACTION code (IT~87%).2111600200006 Units: ARB-UNITS -> NO-DIM in DATA section. STATUS 2111600200007 updated. 2111600200008 ENDBIB 6 0 2111600200009 NOCOMMON 0 0 2111600200010 DATA 2 1 2111600200011 DATA DATA-ERR 2111600200012 NO-DIM NO-DIM 2111600200013 318. 21. 2111600200014 ENDDATA 3 0 2111600200015 ENDSUBENT 14 0 2111600299999 SUBENT 21116003 20200120 22852111600300001 BIB 6 8 2111600300002 REACTION (38-SR-84(N,G)38-SR-85-G,M+,SIG,,SPA) 2111600300003 ANALYSIS .From measured ratio of Sr-84 to Sr-88 cross-section 2111600300004 and assumed value of Sr-88(n,gamma) cross-section. 2111600300005 MONITOR (38-SR-88(N,G)38-SR-89,,SIG) 2111600300006 MONIT-REF (11447050,L.Seren+,J,PR,72,888,1947) 2111600300007 STATUS (TABLE) Tbl.II from Nucl.Phys.,1(1956)420 2111600300008 HISTORY (20200120A) SD: SF5=M+ added to REACTION code (IT~87%).2111600300009 STATUS updated. REL-REF added. 2111600300010 ENDBIB 8 0 2111600300011 NOCOMMON 0 0 2111600300012 DATA 4 1 2111600300013 MONIT DATA DATA-ERR MONIT 2111600300014 MB B B B 2111600300015 5. 1.59 0.11 0.005 2111600300016 ENDDATA 3 0 2111600300017 ENDSUBENT 16 0 2111600399999 ENDENTRY 3 0 2111699999999