ENTRY 12017 20160804 14211201700000001 SUBENT 12017001 20160804 14211201700100001 BIB 10 35 1201700100002 INSTITUTE (1CANCRC,2UK HAR) 1201700100003 REFERENCE (J,JIN,5,259,1958) 1201700100004 AUTHOR (J.G.Bayly,F.Brown,G.R.Hall,A.R.Walter) 1201700100005 TITLE The cross-section of the reaction Cs-134(n,gamma)Cs-1351201700100006 and the half-life of Cs-134. 1201700100007 FACILITY (REAC,1USAINL) Materials Test Reactor (MTR), Idaho, USA1201700100008 (REAC,1CANCRC) heavy water moderated, light water 1201700100009 cooled, nuclear research reactor (NRX) at the Can. 1201700100010 Chalk River Laboratories 1201700100011 SAMPLE Two long irradiations were carried out: 1201700100012 1. approximately 10 mg of spectroscopically pure Cs2CO31201700100013 in the M.T.R., for 140 days. 1201700100014 2. approximately 10 mg of CsNO3 in the NRX reactor, 1201700100015 for 356 days. Two short irradiations were made, each 1201700100016 of 16 hr. using a position in NRX similar to that used 1201700100017 for the long irradiation. For these irradiations the 1201700100018 cesium compounds which were of spectroscopic purity, 1201700100019 were dried at 110.C and weighed into silica tubes which1201700100020 were then sealed. CsC1, 36.8 mg, was used in the first 1201700100021 irradiation and Cs2CO3, 32.1 mg, in the second. 1201700100022 METHOD (ACTIV) 1201700100023 DETECTOR (D4PI) The Beta-counter was of conventional 4Pi design,1201700100024 using methane as counting gas. 1201700100025 (IOCH) The monitors were irradiated in the same 1201700100026 capsule as the cesium samples and then, after a 1201700100027 decay period of 5 days the 60Co activity was measured 1201700100028 in an ionization chamber. 1201700100029 STATUS (TABLE) Data from text on p.262, 263 of reference 1201700100030 HISTORY (19760802T) Translated from SCISRS 1201700100031 (19841018A) Data heading added, BIB corrections. 1201700100032 (20061109A) DR Format updated 1201700100033 (20110807A) SD: Subent 002: 1201700100034 SF4 in REACTION code was added. 1201700100035 BIB updated. 1201700100036 (20160718U) OS. STATUS updated, spelling corr. in sub.31201700100037 ENDBIB 35 0 1201700100038 NOCOMMON 0 0 1201700100039 ENDSUBENT 38 0 1201700199999 SUBENT 12017002 20110807 13771201700200001 BIB 8 17 1201700200002 REACTION (55-CS-133(N,G)55-CS-134,,SIG,,MXW) 1201700200003 DECAY-DATA (55-CS-134,2.19YR) 1201700200004 MONITOR (27-CO-59(N,G)27-CO-60,,SIG) 1201700200005 Cobalt wires of certain standard dimensions and weight1201700200006 diam. 0.013 cm, length 1.0 cm, weight 1.14 4+-0.005 mg.1201700200007 DECAY-MON (27-CO-60,5.28YR) 1201700200008 MONIT-REF (,D.J.Hughers+,R,BNL-325,1955) 1201700200009 REL-REF (R,,W.F.Merritt+,J,CJP,35,16,1957) - decay data 1201700200010 ERR-ANALYS (ERR-T) Overall uncertainty includes: 1201700200011 (ERR-1) error in the absolute disintegration rate 1201700200012 (ERR-2) error in the calibration of the flux 1201700200013 monitoring system 1201700200014 (MONIT-ERR) uncertainty in monitor reaction 1201700200015 (DATA-ERR) The errors quoted are the non-systematic 1201700200016 ones of which the fluctuation between sources, standard1201700200017 deviation +-2%, is the most important. 1201700200018 HISTORY (20110807A) SD: SF4 in REACTION code was added. 1201700200019 ENDBIB 17 0 1201700200020 COMMON 5 3 1201700200021 ERR-1 ERR-2 MONIT MONIT-ERR DATA-ERR 1201700200022 PER-CENT PER-CENT B PER-CENT PER-CENT 1201700200023 2.0 1.5 37.0 4.0 2. 1201700200024 ENDCOMMON 3 0 1201700200025 DATA 3 1 1201700200026 EN-DUMMY DATA ERR-T 1201700200027 EV B B 1201700200028 0.0253 30.4 1.7 1201700200029 ENDDATA 3 0 1201700200030 ENDSUBENT 29 0 1201700299999 SUBENT 12017003 20160804 14211201700300001 BIB 4 10 1201700300002 REACTION (55-CS-134(N,G)55-CS-135,,SIG,,MXW) 1201700300003 ASSUMED (ASSUM,55-CS-133(N,G)55-CS-134,,SIG,,MXW) 1201700300004 ERR-ANALYS (DATA-ERR) The errors include those arising from the 1201700300005 experimental errors in the isotopic composition, from 1201700300006 the uncertainty in the 134Cs half-life and from the 1201700300007 uncertainty in the 135Cs(n,gamma)136Cs cross-section, 1201700300008 but not that from the uncertainty in the 1201700300009 133Cs(n,gamma)134Cs cross-section which introduces a 1201700300010 further error of +-7 barns (see ASSUM). 1201700300011 INC-SPECT Thermal spectrum 1201700300012 ENDBIB 10 0 1201700300013 NOCOMMON 0 0 1201700300014 DATA 5 1 1201700300015 EN-DUMMY DATA DATA-ERR ASSUM ASSUM-ERR 1201700300016 MEV B B B B 1201700300017 2.53E-08 1.34E+02 1.2E+01 29. 7. 1201700300018 ENDDATA 3 0 1201700300019 ENDSUBENT 18 0 1201700399999 ENDENTRY 3 0 1201799999999