ENTRY 23543 20201210 229623543 0 1 SUBENT 23543001 20201210 229623543 1 1 BIB 11 19 23543 1 2 TITLE Fast radiochemical isolation of fission product 23543 1 3 arsenic and the independent yield of arsenic-78 in 23543 1 4 thermal neutron fission of uranium-235 23543 1 5 AUTHOR (A.Kjelberg,A.C.Pappas) 23543 1 6 REFERENCE (J,JIN,11,173,1959) 23543 1 7 INSTITUTE (2NOROSL) 23543 1 8 FACILITY (REAC,2NORKJL) JEEP Heavy Water Reactor at JENER, 23543 1 9 Kjeller 23543 1 10 INC-SOURCE (REAC) 23543 1 11 INC-SPECT Thermal neutrons. Neutron flux 1.E+12 n/cm2/sec. 23543 1 12 SAMPLE 1-2 g of natural uranyl nitrate hexahydrate 23543 1 13 UO(2)(NO(3))(2)*(6)(H(2)O) in plastic capsule. 23543 1 14 DETECTOR (GEMUC) Tracelab TGC-2 Geiger-Mueller Tube 23543 1 15 METHOD (CHSEP) Irradiated 2-3 min. 2-3 sec transporting time.23543 1 16 Radiochemical isolation 1.5-2 min after end of 23543 1 17 irradiation. 23543 1 18 Ba and As were used as carriers. 23543 1 19 HISTORY (20200402C) M.M. 23543 1 20 (20201210U) SD: Correction in Subent 003. 23543 1 21 ENDBIB 19 0 23543 1 22 NOCOMMON 0 0 23543 1 23 ENDSUBENT 22 0 23543 199999 SUBENT 23543002 20200402 228723543 2 1 BIB 12 29 23543 2 2 REACTION (92-U-235(N,F)33-AS-78,IND,FY) 23543 2 3 MONITOR (92-U-235(N,F)56-BA-140,IND,FY) 23543 2 4 DECAY-MON (56-BA-140,12.80D,B) 23543 2 5 MONIT-REF (,S.Katcoff,J,NUC,16,78,1958) 23543 2 6 DECAY-DATA (33-AS-78,91.0MIN,B) 91+-2 min measured 23543 2 7 (32-GE-78,86.MIN) 23543 2 8 ASSUMED (ASSUM,92-U-235(N,F)32-GE-78,IND,FY) 23543 2 9 ANALYSIS Beta-decay curves were analyzed. 23543 2 10 REL-REF (D,,N.Sugarman,J,PR,89,570,1953) 23543 2 11 (1.8+-0.6)*10**-3 %/fis 23543 2 12 ADD-RES (DECAY) As-77 HL 38.5+-0.5 hr measured. 23543 2 13 FLAG (1.) run 1: 23543 2 14 irradiation time - 2.07 min, decay time 1.47 min, 23543 2 15 disintegration rate of As-78 - 1080 d/min, 23543 2 16 disintegration rate of Ba-140 - 1.33E+9 d/min. 23543 2 17 (2.) run 2: 23543 2 18 irradiation time - 2.00 min, decay time - 1.50 min, 23543 2 19 disintegration rate of As-78 - 1320 d/min, 23543 2 20 disintegration rate of Ba-140 - 1.3E+9 d/min. 23543 2 21 (3.) run 3: 23543 2 22 irradiation time - 2.95 min, decay time 2.08 min, 23543 2 23 disintegration rate of As-78 - 1030 d/min, 23543 2 24 disintegration rate of Ba-140 - 6.23E+9 d/min. 23543 2 25 (4.) Average value from three runs 23543 2 26 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 23543 2 27 article. 23543 2 28 STATUS (TABLE) Text of Abstract, text page 178, Table 1 in 23543 2 29 Journal of Inorganic and Nuclear Chemistry, 23543 2 30 v.11,p.173,1959 23543 2 31 ENDBIB 29 0 23543 2 32 COMMON 3 3 23543 2 33 EN-DUMMY MONIT ASSUM 23543 2 34 EV PC/FIS PC/FIS 23543 2 35 0.0253 6.44 1.8E-02 23543 2 36 ENDCOMMON 3 0 23543 2 37 DATA 3 4 23543 2 38 DATA DATA-ERR FLAG 23543 2 39 PC/FIS PC/FIS NO-DIM 23543 2 40 1.1 E-04 0.4 E-04 1. 23543 2 41 2.1 E-04 1.0 E-04 2. 23543 2 42 1.7 E-04 0.5 E-04 3. 23543 2 43 1.7 E-04 0.5 E-04 4. 23543 2 44 ENDDATA 6 0 23543 2 45 ENDSUBENT 44 0 23543 299999 SUBENT 23543003 20201210 229623543 3 1 BIB 7 19 23543 3 2 REACTION (92-U-235(N,F)32-GE-77-M,IND,FY) 23543 3 3 DECAY-DATA (32-GE-77-M,54.SEC,B-,,0.86) 23543 3 4 (32-GE-77-G,11.3HR) 23543 3 5 ANALYSIS Estimated from As-77 content in samples and assuming 23543 3 6 86% decay of Ge-77m directly to As-77. 23543 3 7 REL-REF (A,,N.Sugarman,J,PR,89,570,1953) 23543 3 8 4.4E-03% /fis 23543 3 9 5.4E-03% /fis is deduced from 23543 3 10 E.P.Steinberg,D.W.Engelkemeir, Radiochemical Studies: 23543 3 11 The Fission Products ( ed. by C.D.Coryell, N.Sugarman),23543 3 12 Plutonium Project Record, NNES, div. IV, vol.9, 23543 3 13 paper 54, McGraw-Hill, New York,1951 23543 3 14 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 23543 3 15 article. 23543 3 16 STATUS (TABLE) From the text on page 178 of 23543 3 17 Journal of Inorganic and Nuclear Chemistry, 23543 3 18 v.11,p.173,1959 23543 3 19 HISTORY (20201210U) SD: DECAY-DATA corrected (comma was added 23543 3 20 after type of radiation). 23543 3 21 ENDBIB 19 0 23543 3 22 COMMON 1 3 23543 3 23 EN-DUMMY 23543 3 24 EV 23543 3 25 0.0253 23543 3 26 ENDCOMMON 3 0 23543 3 27 DATA 2 1 23543 3 28 DATA DATA-ERR 23543 3 29 PC/FIS PC/FIS 23543 3 30 5. E-03 1. E-03 23543 3 31 ENDDATA 3 0 23543 3 32 ENDSUBENT 31 0 23543 399999 ENDENTRY 3 0 2354399999999