ENTRY 23701 20200520 228823701 0 1 SUBENT 23701001 20200505 228823701 1 1 BIB 12 39 23701 1 2 TITLE Radiochemical studies of fission induced by 14.7 MeV 23701 1 3 neutrons.Part III. Protactinium 23701 1 4 AUTHOR (M.G.Brown,S.J.Lyle,G.R.Martin) 23701 1 5 REFERENCE (J,RCA,6,16,1966) 23701 1 6 INSTITUTE (2UK KEN) 23701 1 7 FACILITY (VDG,2UK KEN) 23701 1 8 INC-SOURCE (D-T) 150 keV deuterons bombarded Zr-T target. 23701 1 9 INC-SPECT Mono-energy neutrons 23701 1 10 SAMPLE Thin uniform layers of Pa-231 and U-238 (oxide) on 23701 1 11 Pt discs, covered with 0.5 mg/cm2 layer of evaporated 23701 1 12 Au Disc of 2 cm diameter and 0.005 cm thickness. 23701 1 13 Layer thickness 1 mg/cm2 on either side of backing. 23701 1 14 Some U-238 deposits are prepared by electrolysis of 23701 1 15 uranyl nitrate solution containing ammonium oxalate. 23701 1 16 Total 24 targets were interleaved with square 23701 1 17 catcher-foils of 4 cm2 area, stack was compressed and 23701 1 18 placed in metal holder, then in thin-walled 23701 1 19 polyethylene bag and second outer polythene bag. 23701 1 20 Catcher foils - 13 mg/cm2 polystyrene or 23701 1 21 44 mg/cm2 Cu or 7 mg/cm2 Al. 23701 1 22 DETECTOR (SCIN) Proton-recoil scintillation counter to 23701 1 23 monitor variation of neutron flux. 23701 1 24 (PROPC) Sugarman type gas-flow (90% Ar + 10 % methane) 23701 1 25 end-window (metallized Melinex film of 1 mg/cm2) 23701 1 26 beta-proportional counter. 23701 1 27 METHOD (REC) Recoiling fission fragments were collected in 23701 1 28 catcher foils. 23701 1 29 (CHSEP) Polystyrene foils were dissolved in benzene, 23701 1 30 Cu foils - in nitric acid. 23701 1 31 Chemical yields were determined by weighting, except 23701 1 32 for yttrium. 23701 1 33 Details are given in the article. 23701 1 34 REL-REF (M,,R.C.Jensen+,J,PR,118,771,1960) 23701 1 35 Al foils dissolution procedure. 23701 1 36 (R,,S.Katcoff,J,NUC,18,(11),201,1960) 23701 1 37 and Nuclear Data Sheets,National Ac. Scince - National 23701 1 38 Research Council, Washington, D.C. ( year is not given)23701 1 39 Two refs. for half-lives and decay schemes. 23701 1 40 HISTORY (20200520C) M.M. 23701 1 41 ENDBIB 39 0 23701 1 42 NOCOMMON 0 0 23701 1 43 ENDSUBENT 42 0 23701 199999 SUBENT 23701002 20200520 228823701 2 1 BIB 6 11 23701 2 2 REACTION ((92-U-238(N,F)ELEM/MASS,CUM,FY)/ 23701 2 3 (92-U-238(N,F)56-BA-139,CUM,FY)) 23701 2 4 REL-REF (A,,R.H.James+,J,RCA,3,76,1964) 23701 2 5 FLAG (1.) Recoil method 23701 2 6 (2.) Direct chemical separation method 23701 2 7 (3.) Recoil method, relative to Zr-97 yield 23701 2 8 ANALYSIS This measurement by U-238 indicated the agreement 23701 2 9 between data measured by direct chemical separation and23701 2 10 by recoil method. 23701 2 11 ERR-ANALYS (DATA-ERR) Standard deviation 23701 2 12 STATUS (TABLE) Table 1 of Radiochimica Acta,v.6,p.16,1966 23701 2 13 ENDBIB 11 0 23701 2 14 COMMON 1 3 23701 2 15 EN 23701 2 16 MEV 23701 2 17 14. 23701 2 18 ENDCOMMON 3 0 23701 2 19 DATA 5 6 23701 2 20 ELEMENT MASS DATA DATA-ERR FLAG 23701 2 21 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 23701 2 22 40. 97. 1.11 0.06 1. 23701 2 23 40. 97. 1.20 0.09 2. 23701 2 24 44. 105. 0.42 0.03 3. 23701 2 25 47. 113. 0.14 0.04 1. 23701 2 26 47. 113. 0.18 0.03 2. 23701 2 27 56. 139. 1.00 1. 23701 2 28 ENDDATA 8 0 23701 2 29 ENDSUBENT 28 0 23701 299999 SUBENT 23701003 20200520 228823701 3 1 BIB 5 17 23701 3 2 REACTION ((91-PA-231(N,F)MASS,CHN,FY)/ 23701 3 3 (91-PA-231(N,F)MASS,CHN,FY)) 23701 3 4 DECAY-DATA (91-PA-231,3.25E+4YR) 23701 3 5 FLAG Substance counted Nuclide measured 23701 3 6 (1.) AgBr Br-84 23701 3 7 (2.) Sr(C(2)O(4)*H(2)O Sr-91(+Y-91m, Y-91) 23701 3 8 (3.) Y(2)(C(2)O(4))3*9H(2)O Y-93 23701 3 9 (4.) Zr(C(6)H(7)O(3))4 Zr-97(+Nb-97m,Nb-97) 23701 3 10 (5.) MoO(2)(C(9)H(6)ON)2 Mo-99(+Tc-99m) 23701 3 11 (6.) RuO(2) Ru-105(+Rh-105m,Rh-105) 23701 3 12 (7.) AgCl Ag-112 23701 3 13 (8.) AgIO(3) Ag-113 23701 3 14 (9.) Sb Sb-129(+Te-129) 23701 3 15 (10.) Te Te-132(+I-132) 23701 3 16 (11.) Ce(2)(C(2)O(4))3*9H(2)O Ce-143(+Pr-143) 23701 3 17 ERR-ANALYS (DATA-ERR) Standard deviation 23701 3 18 STATUS (TABLE) Table 2 of Radiochimica Acta,v.6,p.16,1966 23701 3 19 ENDBIB 17 0 23701 3 20 COMMON 3 3 23701 3 21 EN EN-ERR MASS-DN 23701 3 22 MEV MEV NO-DIM 23701 3 23 14.7 0.2 40. 23701 3 24 ENDCOMMON 3 0 23701 3 25 DATA 4 11 23701 3 26 MASS-NM DATA DATA-ERR FLAG 23701 3 27 NO-DIM NO-DIM NO-DIM NO-DIM 23701 3 28 84. 0.650 0.022 1. 23701 3 29 91. 1.30 0.07 2. 23701 3 30 93. 1.55 0.06 3. 23701 3 31 97. 1.00 4. 23701 3 32 99. 0.749 0.034 5. 23701 3 33 105. 0.305 0.019 6. 23701 3 34 112. 0.479 0.035 7. 23701 3 35 113. 0.575 0.017 8. 23701 3 36 129. 0.136 0.007 9. 23701 3 37 132. 1.14 0.06 10. 23701 3 38 143. 0.782 0.031 11. 23701 3 39 ENDDATA 13 0 23701 3 40 ENDSUBENT 39 0 23701 399999 SUBENT 23701004 20200520 228823701 4 1 BIB 5 6 23701 4 2 REACTION (91-PA-231(N,F)MASS,CHN,FY) 23701 4 3 DECAY-DATA (91-PA-231,3.25E+4YR) 23701 4 4 MONITOR ((MONIT)91-PA-231(N,F)MASS,CHN,FY) 23701 4 5 ERR-ANALYS (DATA-ERR) Standard deviation 23701 4 6 STATUS (TABLE) Table 2 of Radiochimica Acta,v.6,p.16,1966 23701 4 7 (DEP,23701003) Relative yields. 23701 4 8 ENDBIB 6 0 23701 4 9 COMMON 4 3 23701 4 10 EN EN-ERR MASS-NRM MONIT 23701 4 11 MEV MEV NO-DIM PC/FIS 23701 4 12 14.7 0.2 97. 4.92 23701 4 13 ENDCOMMON 3 0 23701 4 14 DATA 3 10 23701 4 15 MASS-NM DATA DATA-ERR 23701 4 16 NO-DIM PC/FIS PC/FIS 23701 4 17 84. 2.78 0.16 23701 4 18 91. 4.97 0.40 23701 4 19 93. 6.80 0.36 23701 4 20 99. 3.21 0.28 23701 4 21 105. 1.33 0.12 23701 4 22 112. 2.05 0.26 23701 4 23 113. 2.48 0.13 23701 4 24 129. 0.64 0.09 23701 4 25 132. 4.97 0.26 23701 4 26 143. 3.38 0.20 23701 4 27 ENDDATA 12 0 23701 4 28 ENDSUBENT 27 0 23701 499999 ENDENTRY 4 0 2370199999999