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