ENTRY 30971 20131018 31613097100000001 SUBENT 30971001 20131018 31613097100100001 BIB 13 30 3097100100002 TITLE Determination of the ratio of the hydrogen and 3097100100003 manganese absorption cross sections by the manganese 3097100100004 bath technique 3097100100005 AUTHOR (S.T.Hwang,K.J.Lee,K.O.Choi,P.J.Oh) 3097100100006 INSTITUTE (3KORKSR) 3097100100007 REFERENCE (J,JRN,139,(1),37,1990) 3097100100008 SAMPLE Aqueous manganese sulfate solution in a spherical 3097100100009 bath with an inner diameter of 125 cm, 50mu-g 3097100100010 INC-SOURCE (CF252) Placed in the center of the manganese bath 3097100100011 PART-DET (G) 3097100100012 DETECTOR (NAICR) 3.8 x 3.8 cm NaI(Tl) crystals for detection 3097100100013 gamma-rays from 56Mn. 3097100100014 METHOD (MANGB,ACTIV) The Mn-56 gamma activity was measured and3097100100015 the NaI detector efficiency determined at six different3097100100016 values for the chemical concentration of the aqueous 3097100100017 manganese sulfate solution. The detector efficiency 3097100100018 was determined from the absolute desintegration rate 3097100100019 of the Mn-56 solution, which was measured with the 3097100100020 4-Pi beta-gamma coincidence counting method. 3097100100021 ANALYSIS (DECAY) The neutron source strength and the neutron 3097100100022 absorption cross section ratio hydrogen/manganese were 3097100100023 determined from the hydrogen and manganese concentra- 3097100100024 tion ratios, the corresponding efficiencies and Mn-56 3097100100025 activities with the straight-line fit method. 3097100100026 INC-SPECT Maxwellian fission spectrum 3097100100027 STATUS (TABLE) Data taken from 3097100100028 J.Radioanal,Nucl.Chem.139(1990)37,p.47 3097100100029 HISTORY (19911220C) HW 3097100100030 (20090912A) SD:Updated to new date formats,lower case. 3097100100031 (20131018U) VS. Reac. code SF8: MXW -> FIS 3097100100032 ENDBIB 30 0 3097100100033 NOCOMMON 0 0 3097100100034 ENDSUBENT 33 0 3097100199999 SUBENT 30971002 20131018 31613097100200001 BIB 1 2 3097100200002 REACTION ((1-H-1(N,G)1-H-2,,SIG,,FIS)/ 3097100200003 (25-MN-55(N,G)25-MN-56,,SIG,,FIS)) 3097100200004 ENDBIB 2 0 3097100200005 NOCOMMON 0 0 3097100200006 DATA 2 1 3097100200007 EN-MEAN DATA 3097100200008 MEV NO-DIM 3097100200009 1.5 0.02506 3097100200010 ENDDATA 3 0 3097100200011 ENDSUBENT 10 0 3097100299999 ENDENTRY 2 0 3097199999999