Spectroscopy of nuclear systems. Progress report, January 1--December 31, 1974 Page: 39 of 53
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gamma ray has the strongest angular correlation of any others observed in
this reaction. The spin of this level is believed to be 17/2+. The life-
time, as determined by ( Li, Kny) work is 05 wnec. We propose to
measure this lifetime using the 93b(pny) reaction via the recoil dis-
tance technique. A plunger apparatus for recoil distance measurements is
presently being developed for use with nuclear reactions (see Ref. 19 for
details). We anticipate several more high spin states in Zo will be
populated via the Zr(%,2 y) 93 reaction which we are also investigating.
The plunger apparatus is expected to be appropriate for measuring the life-
times of these levels also. A program to compute the centroidshift and
line shape as a function of recoil distance is betng developed since the
shift will be less than 1 channel in the case of the (p,ny) reaction.
(L. L. Rutledge, E. S. Macias and D. G. Sarantites)
C. Spectroscopy and Reaction Mechanism Studies via the Zr(a,2ny)
Many of the lifetimes of the low-lying Levels La Mo have been deter-
wined by the Doppler-shift attenuation method using the 93Rb(p,ny) reaction
at a bombarding energy of 4.4 TeV. The lifetimes of the levels also ob-
served Lu the 912r(a,2ny) reaction will be used to study the lifetimes of
the continuum cascade as a function of excitation energy and bombarding
energy. If the systematics of the continuum cascade can thus be determined,
it will be possible to obtain lifetimes for the new high spin levels popu-
lated via the 91 Zr(a,2ny) reaction.
18. D.E. Fossan, private communication (1974).
19. D.G. Sarantites, USAEC Technical Progress Report COO-1530-43 (1974).
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Macias, E. S. Spectroscopy of nuclear systems. Progress report, January 1--December 31, 1974, report, January 1, 1974; St. Louis, Missouri. (https://digital.library.unt.edu/ark:/67531/metadc1020885/m1/39/: accessed April 26, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.