ENTRY 23543 20201210 22962354300000001 SUBENT 23543001 20201210 22962354300100001 BIB 11 19 2354300100002 TITLE Fast radiochemical isolation of fission product 2354300100003 arsenic and the independent yield of arsenic-78 in 2354300100004 thermal neutron fission of uranium-235 2354300100005 AUTHOR (A.Kjelberg,A.C.Pappas) 2354300100006 REFERENCE (J,JIN,11,173,1959) 2354300100007 INSTITUTE (2NOROSL) 2354300100008 FACILITY (REAC,2NORKJL) JEEP Heavy Water Reactor at JENER, 2354300100009 Kjeller 2354300100010 INC-SOURCE (REAC) 2354300100011 INC-SPECT Thermal neutrons. Neutron flux 1.E+12 n/cm2/sec. 2354300100012 SAMPLE 1-2 g of natural uranyl nitrate hexahydrate 2354300100013 UO(2)(NO(3))(2)*(6)(H(2)O) in plastic capsule. 2354300100014 DETECTOR (GEMUC) Tracelab TGC-2 Geiger-Mueller Tube 2354300100015 METHOD (CHSEP) Irradiated 2-3 min. 2-3 sec transporting time.2354300100016 Radiochemical isolation 1.5-2 min after end of 2354300100017 irradiation. 2354300100018 Ba and As were used as carriers. 2354300100019 HISTORY (20200402C) M.M. 2354300100020 (20201210U) SD: Correction in Subent 003. 2354300100021 ENDBIB 19 0 2354300100022 NOCOMMON 0 0 2354300100023 ENDSUBENT 22 0 2354300199999 SUBENT 23543002 20200402 22872354300200001 BIB 12 29 2354300200002 REACTION (92-U-235(N,F)33-AS-78,IND,FY) 2354300200003 MONITOR (92-U-235(N,F)56-BA-140,IND,FY) 2354300200004 DECAY-MON (56-BA-140,12.80D,B) 2354300200005 MONIT-REF (,S.Katcoff,J,NUC,16,78,1958) 2354300200006 DECAY-DATA (33-AS-78,91.0MIN,B) 91+-2 min measured 2354300200007 (32-GE-78,86.MIN) 2354300200008 ASSUMED (ASSUM,92-U-235(N,F)32-GE-78,IND,FY) 2354300200009 ANALYSIS Beta-decay curves were analyzed. 2354300200010 REL-REF (D,,N.Sugarman,J,PR,89,570,1953) 2354300200011 (1.8+-0.6)*10**-3 %/fis 2354300200012 ADD-RES (DECAY) As-77 HL 38.5+-0.5 hr measured. 2354300200013 FLAG (1.) run 1: 2354300200014 irradiation time - 2.07 min, decay time 1.47 min, 2354300200015 disintegration rate of As-78 - 1080 d/min, 2354300200016 disintegration rate of Ba-140 - 1.33E+9 d/min. 2354300200017 (2.) run 2: 2354300200018 irradiation time - 2.00 min, decay time - 1.50 min, 2354300200019 disintegration rate of As-78 - 1320 d/min, 2354300200020 disintegration rate of Ba-140 - 1.3E+9 d/min. 2354300200021 (3.) run 3: 2354300200022 irradiation time - 2.95 min, decay time 2.08 min, 2354300200023 disintegration rate of As-78 - 1030 d/min, 2354300200024 disintegration rate of Ba-140 - 6.23E+9 d/min. 2354300200025 (4.) Average value from three runs 2354300200026 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 2354300200027 article. 2354300200028 STATUS (TABLE) Text of Abstract, text page 178, Table 1 in 2354300200029 Journal of Inorganic and Nuclear Chemistry, 2354300200030 v.11,p.173,1959 2354300200031 ENDBIB 29 0 2354300200032 COMMON 3 3 2354300200033 EN-DUMMY MONIT ASSUM 2354300200034 EV PC/FIS PC/FIS 2354300200035 0.0253 6.44 1.8E-02 2354300200036 ENDCOMMON 3 0 2354300200037 DATA 3 4 2354300200038 DATA DATA-ERR FLAG 2354300200039 PC/FIS PC/FIS NO-DIM 2354300200040 1.1 E-04 0.4 E-04 1. 2354300200041 2.1 E-04 1.0 E-04 2. 2354300200042 1.7 E-04 0.5 E-04 3. 2354300200043 1.7 E-04 0.5 E-04 4. 2354300200044 ENDDATA 6 0 2354300200045 ENDSUBENT 44 0 2354300299999 SUBENT 23543003 20201210 22962354300300001 BIB 7 19 2354300300002 REACTION (92-U-235(N,F)32-GE-77-M,IND,FY) 2354300300003 DECAY-DATA (32-GE-77-M,54.SEC,B-,,0.86) 2354300300004 (32-GE-77-G,11.3HR) 2354300300005 ANALYSIS Estimated from As-77 content in samples and assuming 2354300300006 86% decay of Ge-77m directly to As-77. 2354300300007 REL-REF (A,,N.Sugarman,J,PR,89,570,1953) 2354300300008 4.4E-03% /fis 2354300300009 5.4E-03% /fis is deduced from 2354300300010 E.P.Steinberg,D.W.Engelkemeir, Radiochemical Studies: 2354300300011 The Fission Products ( ed. by C.D.Coryell, N.Sugarman),2354300300012 Plutonium Project Record, NNES, div. IV, vol.9, 2354300300013 paper 54, McGraw-Hill, New York,1951 2354300300014 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 2354300300015 article. 2354300300016 STATUS (TABLE) From the text on page 178 of 2354300300017 Journal of Inorganic and Nuclear Chemistry, 2354300300018 v.11,p.173,1959 2354300300019 HISTORY (20201210U) SD: DECAY-DATA corrected (comma was added 2354300300020 after type of radiation). 2354300300021 ENDBIB 19 0 2354300300022 COMMON 1 3 2354300300023 EN-DUMMY 2354300300024 EV 2354300300025 0.0253 2354300300026 ENDCOMMON 3 0 2354300300027 DATA 2 1 2354300300028 DATA DATA-ERR 2354300300029 PC/FIS PC/FIS 2354300300030 5. E-03 1. E-03 2354300300031 ENDDATA 3 0 2354300300032 ENDSUBENT 31 0 2354300399999 ENDENTRY 3 0 2354399999999