Partial photoneutron cross sections for the isomeric state 180Tam.
Photoneutron cross sections for (181)Ta(y, n) (180)Ta(m) were determined from simultaneous measurements of total cross sections (sigma(tot) and ground-state cross sections (sigma(gs)) for (180)Ta in photodisintegration of with laser Compton-backscattered rays. Techniques of direct neutron counting and photoactivation were used for the measurement of sigma(tot) and sigma(gs), respectively. The partial cross sections for the isomeric state serves as a novel probe of the nuclear level density of (180)Ta. Implications for the p- and s-process nucleosynthesis of (180)Ta(m) are given.
Goko
S
S
Department of Physics, Konan University, Higashinada, Kobe, Japan.
Utsunomiya
H
H
Goriely
S
S
Makinaga
A
A
Kaihori
T
T
Hohara
S
S
Akimune
H
H
Yamagata
T
T
Lui
Y-W
YW
Toyokawa
H
H
Koning
A J
AJ
Hilaire
S
S