ENTRY 21952 20110304 22262195200000001 SUBENT 21952001 20110304 22262195200100001 BIB 13 43 2195200100002 INSTITUTE (2GERTHD) Authors 2195200100003 (2GERKFK) experimental site 2195200100004 REFERENCE (J,RCA,29,193,1981) 2195200100005 AUTHOR (E.Kluge,K.H.Lieser) 2195200100006 TITLE -Production of Pa-231 and U-232 by irradiation of 2195200100007 Th-230/Th-232 mixtures 2195200100008 FACILITY (REAC,2GERKFK) FR2 reactor in Karlsruhe 2195200100009 irradiation during 4 months 2195200100010 INC-SOURCE (REAC) .Co2O3(Co) to determine mean n-flux 2195200100011 .thermal n-flux=6.9 x 10**13 /cm**2/sec 2195200100012 .epith./th.flux=0.03 2195200100013 INC-SPECT .Thermal reactor spectrum. 2195200100014 SAMPLE .ThO2 81.3 milli-g before irradiation,containing 2195200100015 8.51 milli-g Th-230 2195200100016 METHOD (ACTIV) 2195200100017 (CHSEP) ref.Fig.1 2195200100018 .For Th-230(n,X)Pa-231 reaction chemical 2195200100019 yield=94.9+-1.5% 2195200100020 .for Th-230(n,X)U-232 reaction chemical 2195200100021 yield=89.1+-0.9% 2195200100022 DETECTOR (GELI) For gamma-activity 2195200100023 .for Th-230(n,X)U-232 reaction,were measured 2195200100024 gamma-rays of 2195200100025 -Pb-212 239,299 keV 2195200100026 -Bi-212 726 keV 2195200100027 -Tl-208 227,583,860,2614 keV 2195200100028 (PROPC) .flow counter for alpha and beta activities 2195200100029 -alpha counting efficiency in using Am-241= 2195200100030 16.3+-0.9% for very thin Pa samples 2195200100031 and =12.7+-0.9% for U samples 2195200100032 -Beta counting efficiency in using 2195200100033 Pa-233 =15.2+-0.9% for Pa samples and 2195200100034 9.3+-0.6% for U samples 2195200100035 PART-DET (A) 2195200100036 (DG) 2195200100037 (B-) 2195200100038 ERR-ANALYS (DATA-ERR) Error in % on yield taken from tables 1,2,3 2195200100039 HISTORY (19850129C) BL 2195200100040 (19850423E) 2195200100041 (20110304D) SD: Entry deleted. Yields relevant to 2195200100042 chemistry. No nuclear reaction data. 2195200100043 Updated to new date formats,lower case, 2195200100044 corrected according to last EXFOR rules and Dict. 2195200100045 ENDBIB 43 0 2195200100046 NOCOMMON 0 0 2195200100047 ENDSUBENT 46 0 2195200199999 NOSUBENT 21952002 20110304 22262195200200001 NOSUBENT 21952003 20110304 22262195200300001 ENDENTRY 3 0 2195299999999