ENTRY O0568 20120604 O048O056800000001 SUBENT O0568001 20120604 O048O056800100001 BIB 13 44 O056800100002 TITLE Isomer yield ratio of Cd-115-m and Cd-115-g in O056800100003 charged particle induced fission. O056800100004 AUTHOR (A.Kjelberg,A.C.Pappas,T.Tunaal) O056800100005 INSTITUTE (2NOROSL) O056800100006 REFERENCE (J,JIN,31,257,1969) O056800100007 REL-REF (D,O0591004,R.S.Tilbury+,J,CJC,41,1956,1963) O056800100008 (A,C0373001,H.G.Hicks+,J,PR,100,1286,1955) O056800100009 SAMPLE 50 mg/cm**2 foils of natural uranium placed at O056800100010 90 degree angle with the beam,were used. O056800100011 DETECTOR (GELI) O056800100012 FACILITY (CYCLO,2SWDIPS) The External beam of the 200-cm O056800100013 Cyclotron at the Institute of Physics,Stockholm. O056800100014 (CYCLO,2GERKFK) The Internal beam of the Cyclotron at O056800100015 Kernforschungszentrum, Karlsruhe. O056800100016 METHOD (EXTB) O056800100017 (INTB) O056800100018 (CHSEP) Chemical yields were determined gravimetricallyO056800100019 for silver chloride. Otherwise the 1.3-Yr Cd-109 in theO056800100020 cadmium carrier was used as internal monitor for yield O056800100021 determinations. A 12 mg/cm**2 aluminium foils was used O056800100022 to absorb the conversion electrons from Cd-109 when O056800100023 2.3-days Cd-115-G and 43-days Cd-115-M were beta O056800100024 counted. The Recovered amount of Cd-109 was determined O056800100025 either by counting of the 88-keV gamma peak or by beta O056800100026 counting with the aluminium foil removed [after the O056800100027 cadmium activity had decayed for 8-10 months]. O056800100028 (ACTIV) Beam intensity of Stockholm Institute was 50 O056800100029 muA, approximately. Beam intensity at Karlsruhe was O056800100030 1-4 muA. The standard irradiation time was 10 min, but O056800100031 2 min and 30 min were also performed. O056800100032 CORRECTION To determine the yield ratio of the cadmium isomers, O056800100033 these were separated from 21-min Ag-115 after a O056800100034 complete decay of other short lived precursors. Since,O056800100035 however, the time used for separation is somewhat less O056800100036 than the half-Live of 21-min Ag-115 appropriate O056800100037 corrections are determined by measuring the amounts of O056800100038 cadmium grown from isolated 21-min Ag-115. O056800100039 ADD-RES (DECAY) O056800100040 STATUS (CURVE) from fig.3 of JIN,31,257,1969 O056800100041 HISTORY (19990831C) O056800100042 (19990904U) Last checking has been done. O056800100043 (19991117A) DATE is corrected O056800100044 (20120604U) SD: Year of ref.(JIN,31,257) was corrected;O056800100045 Cosmetic corrections. O056800100046 ENDBIB 44 0 O056800100047 NOCOMMON 0 0 O056800100048 ENDSUBENT 47 0 O056800199999 SUBENT O0568002 20120604 O048O056800200001 BIB 5 13 O056800200002 REACTION (92-U-0(P,F)48-CD-115-M/G,,SIG/RAT) O056800200003 averages of two or three runs O056800200004 RAD-DET (48-CD-115-M,B-) O056800200005 (48-CD-115-G,B-) O056800200006 DECAY-DATA (48-CD-115-M,43.D) O056800200007 (48-CD-115-G,2.3D) O056800200008 ERR-ANALYS (DATA-ERR) Estimated uncertainties, including O056800200009 digitizing error O056800200010 COMMENT - By Compiler - 50 sec isomer of Ag-115 decays to O056800200011 ground state of 115-Cd only. Therefore 115-M-Cd O056800200012 production may be assumed as independent, but 115-G-Cd O056800200013 production includes production due to 50 sec 115-M-Ag O056800200014 decay. O056800200015 ENDBIB 13 0 O056800200016 COMMON 1 3 O056800200017 EN-ERR O056800200018 PER-CENT O056800200019 1.6 O056800200020 ENDCOMMON 3 0 O056800200021 DATA 3 5 O056800200022 EN DATA DATA-ERR O056800200023 MEV NO-DIM PER-CENT O056800200024 10. 0.131 15. O056800200025 11. 0.101 26. O056800200026 15.69 3.1E-02 30. O056800200027 21.5 2.3E-02 30. O056800200028 23.3 3.5E-02 20. O056800200029 ENDDATA 7 0 O056800200030 ENDSUBENT 29 0 O056800299999 ENDENTRY 2 0 O056899999999