ENTRY O1007 20040304 0000O100700000001 SUBENT O1007001 20040304 0000O100700100001 BIB 11 32 O100700100002 TITLE Beta decay of Co-66, Co-68 and Co-70. O100700100003 AUTHOR (W.F.Mueller, B.Bruyneel, S.Franchoo, M.Huyse, O100700100004 J.Kurpeta K.Kruglov, Y.Kudryavtsev, N.V.S.V.Prasad, O100700100005 R.Raabe, I.Reusen, P.Van Duppen, J.Van Roosbroeck, O100700100006 L.Vermeeren, L.Weissman, Z.Janas, M.Karny, T.Kszczot, O100700100007 A.Plochocki, K.L.Kratz, B.Pfeiffer, H.Grawe, U.Koster, O100700100008 P.Thirolf, W.B.Walters) O100700100009 INSTITUTE (2BLGLVN) University of Leuven. O100700100010 (3POLPOL) Institute of experimental physics, hoza O100700100011 (2GERMNZ) O100700100012 (2GERGSI) O100700100013 (2GERMUN) O100700100014 (2GERMST) O100700100015 (1USAMRY) Department of chemistry O100700100016 REFERENCE (J,PR/C,61,054308,2000) O100700100017 HISTORY (20021007C) O100700100018 (20040304U) Last checking has been done. O100700100019 SAMPLE Two U-238 targets of 15 mg/cm**2 were installed in a O100700100020 gas cell. O100700100021 ADD-RES (COMP). Shell-model calculation. O100700100022 (DECAY,STRUC) Two B-decaying states are observed in O100700100023 Co-70 with half-lives of 0.12(3) and 0.50(18) sec. O100700100024 From the B-decay of these states in Co-66, 68, 70 many O100700100025 new excited levels are established in Ni-66, Ni-68 andO100700100026 Ni-70. O100700100027 DETECTOR (HPGE) Two high-purity germanium detectors, 70% and 75%O100700100028 relative efficiency and three Delta-E detectors O100700100029 arranged in a compact configuration. O100700100030 FACILITY (OLMS,2BLGBLG) An ion-guide laser ion source has been O100700100031 developed at the Leuven isotope separator on-line. O100700100032 METHOD (ASEP) O100700100033 STATUS (TABLE) O100700100034 ENDBIB 32 0 O100700100035 COMMON 1 3 O100700100036 EN O100700100037 MEV O100700100038 30. O100700100039 ENDCOMMON 3 0 O100700100040 ENDSUBENT 39 0 O100700199999 SUBENT O1007002 20040304 0000O100700200001 BIB 5 23 O100700200002 REACTION (92-U-238(P,X)ELEM/MASS,,SIG) O100700200003 REL-REF (R,O0923001,S.FRANCHOO+,J,PRL,81,3100,1998) Data from O100700200004 this paper for Ni-68-Ni-74 was reported in table I and O100700200005 on fig.1. O100700200006 FLAG (1.).The yields for Ni-68 - Ni-71 from O0923. O100700200007 (2.).The early yields for Co-isotopes. O100700200008 (3.).Improved yields for Ni and Co isotopes. O100700200009 COMMENT -By authors: O100700200010 1. The half-life of Co-66 is measured to be 0.18(1) O100700200011 sec. The half-life of the Co-68 isomers are 1.6 and O100700200012 0.23 sec which means that only the short-living isotopeO100700200013 could substantially decay during transport. Two O100700200014 B-decaying states are observed in Co-70 with half- O100700200015 lives of 0.12(3) and 0.50(18) sec. O100700200016 2. Early experiments to measure Ni-68-Ni-74 were also O100700200017 performed with the liglis-lisol setup with similar O100700200018 detector configurations. See O0923. O100700200019 3. Production rates (atoms/muc) of neutron- rich O100700200020 isotopes produced in the 30-MeV proton induced fissionO100700200021 of U-238 were calculated by authors in units- mb, usingO100700200022 scaling factor of 0.01 mb*muc/atom for the Co, Ni. SeeO100700200023 O1005002. O100700200024 ERR-ANALYS (ERR-T) The uncertainty is shown in table. O100700200025 ENDBIB 23 0 O100700200026 NOCOMMON 0 0 O100700200027 DATA 6 18 O100700200028 ELEMENT MASS ISOMER DATA ERR-T FLAG O100700200029 NO-DIM NO-DIM NO-DIM MB MB NO-DIM O100700200030 27. 66. 0.004 0.002 2.O100700200031 27. 66. 0.018 0.007 3.O100700200032 27. 67. 0.026 0.008 2.O100700200033 27. 67. 0.12 0.05 3.O100700200034 27. 68. 0. 0.007 0.003 2.O100700200035 27. 68. 1. 0.009 0.004 2.O100700200036 27. 69. 0.008 0.003 2.O100700200037 27. 70. 0. 0.001 0.0003 2.O100700200038 27. 70. 1. 0.00052 0.00015 2.O100700200039 28. 68. 0.036 0.007 1.O100700200040 28. 69. 0. 0.007 0.003 1.O100700200041 28. 69. 1. 0.043 0.008 1.O100700200042 28. 70. 0.06 0.01 1.O100700200043 28. 71. 0.03 0.006 1.O100700200044 28. 71. 0.12 0.05 3.O100700200045 28. 72. 0.011 0.002 1.O100700200046 28. 73. 0.0026 0.0006 1.O100700200047 28. 74. 0.00034 0.00009 1.O100700200048 ENDDATA 20 0 O100700200049 ENDSUBENT 48 0 O100700299999 ENDENTRY 2 0 O100799999999