ENTRY 30765 20211203 32043076500000001 SUBENT 30765001 20211203 32043076500100001 BIB 13 36 3076500100002 TITLE Charge distribution study in the neutron induced 3076500100003 fission of 237Np - fractional cumulative yield of 3076500100004 134Te, 135I and 138Xe 3076500100005 AUTHOR (A.Ramaswami,S.S.Rattan,N.Chakravarty,R.J.Singh, 3076500100006 S.B.Manohar,S.Prakash,M.V.Ramaniah) 3076500100007 INSTITUTE (3INDTRM) 3076500100008 REFERENCE (J,RCA,41,9,1987) 3076500100009 (P,BARC-1381,40,1987) the same data 3076500100010 SAMPLE Approx. 100 microgram, prepared by electrodeposition 3076500100011 from isopropyl alcohol medium on Al-foil, covered with 3076500100012 0.007 cm Al catcher foil, wrapped in 0.002 cm Cd foil. 3076500100013 Original sample purified from Pu, Am. Alpha spectrum 3076500100014 showed less than 0.004 % 239Pu. 3076500100015 FACILITY (REAC,3INDTRM) Apsara swimming pool reactor 3076500100016 neutron flux is about 10**12 n/cm2/s 3076500100017 INC-SPECT Thermal reactor spectrum - sample shielded by 0.002 cm 3076500100018 cadmium, estimated Cd ratio is 200 (assumed by the 3076500100019 compiler. In the publication the number is called 3076500100020 cadmium cutoff). Cd-wrapping used to reduce 238Np 3076500100021 fissions (calculated to be less than 0.05 % of 3076500100022 237Np fissions). 3076500100023 Irradiation times were up to a maximum of 30 minutes. 3076500100024 METHOD (GSPEC) Gamma-ray counting of catcher foil. 3076500100025 DETECTOR (HPGE).45 ccm, 4096 channel analyzer 3076500100026 resolution = 2.1 kev at 1332 keV. 3076500100027 ANALYSIS (DECAY) Fractional cumulative yields were derived from 3076500100028 the growth and decay curves of daughter products. 3076500100029 Details and formulae are given in 3076500100030 Radiochim.Acta 33(1983)189 3076500100031 ERR-ANALYS (DATA-ERR) No information given 3076500100032 STATUS (TABLE).In the first reference 3076500100033 HISTORY (19871127C) ML 3076500100034 (20040311U) SD: corrected 4-dig. year and lower cases. 3076500100035 (20210917A) VS: DATA-ERR:0.14->0.014 for 135I in 002. 3076500100036 (c.f. P,BARC-1381,40,1987) 3076500100037 (20211202U) VS. Reference P,BARC-1381,40,1987. 3076500100038 ENDBIB 36 0 3076500100039 COMMON 1 3 3076500100040 EN-MIN 3076500100041 EV 3076500100042 0.5 3076500100043 ENDCOMMON 3 0 3076500100044 ENDSUBENT 43 0 3076500199999 SUBENT 30765002 20211005 32023076500200001 BIB 4 31 3076500200002 REACTION (93-NP-237(N,F)ELEM/MASS,CUM,FY,,FRC/EPI) 3076500200003 DECAY-DATA ((1.)51-SB-134-G,0.85SEC) 3076500200004 ((1.)52-TE-134,41.8MIN) 3076500200005 ((1.)53-I-134-G,52.MIN) 3076500200006 ((2.)51-SB-135,1.7SEC) 3076500200007 ((2.)52-TE-135,18.SEC) 3076500200008 ((2.)53-I-135,6.61HR,B-,,0.147, 3076500200009 B-,,0.853) TO XE-135-M AND -G RESP3076500200010 ((2.)54-XE-135-M,15.3MIN) 100 % IT TO XE-135G 3076500200011 ((2.)54-XE-135-G,9.1HR) 3076500200012 ((3.)52-TE-138,1.6SEC) 3076500200013 ((3.)53-I-138,6.4SEC) 3076500200014 ((3.)54-XE-138,14.1MIN) No branching fractions given 3076500200015 ((3.)55-CS-138-M,2.9MIN) 100 percent beta-decay assumed3076500200016 ((3.)55-CS-138-G,32.2MIN) 3076500200017 No gamma-ray data are given. 3076500200018 Half-lives are taken from the Karlsruhe Chart of the 3076500200019 nuclides (1981) 3076500200020 The branching fractions for the 135I decay is assumed 3076500200021 by the compiler to be the same as those given in 3076500200022 Radiochim.Acta 33(1983)189 (see also analysis) 3076500200023 ADD-RES From the measured fractional cumulative yields, the 3076500200024 following values were derived for the most probable 3076500200025 charge (ZP) using the equation of D.R.Nethaway, 3076500200026 UCRL-51640 (1974): 3076500200027 ZP(A=134)=52.29 ZP(A=135)=52.73 ZP(A=138)=53.96 3076500200028 from a plot of the fractional cumulative yield versus 3076500200029 (Z-ZP), a value of 0.6 was obtained for the Gaussian 3076500200030 width of the distribution. 3076500200031 HISTORY (20210917A) VS: DATA-ERR:0.14->0.014 for 135I 3076500200032 (c.f. P,BARC-1381,40,1987) 3076500200033 ENDBIB 31 0 3076500200034 NOCOMMON 0 0 3076500200035 DATA 5 3 3076500200036 ELEMENT MASS DATA DATA-ERR DECAY-FLAG 3076500200037 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 3076500200038 52. 134. 0.589 0.026 1. 3076500200039 53. 135. 0.916 0.014 2. 3076500200040 54. 138. 0.885 0.084 3. 3076500200041 ENDDATA 5 0 3076500200042 ENDSUBENT 41 0 3076500299999 ENDENTRY 2 0 3076599999999