D. Kolev et al., A CONVENIENT METHOD FOR EXPERIMENTAL-DETERMINATION OF YIELDS AND ISOMERIC RATIOS IN PHOTONUCLEAR REACTIONS MEASURED BY THE ACTIVATION TECHNIQUE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 356(2-3), 1995, pp. 390-396
A generalized exact formula is derived for a determination of the expe
rimental isomeric ratio in any incident particle activation. For the p
articular case, when the activity of the ground state results from the
simultaneous decay of both states and can be conveniently measured, t
he appropriate modification of this formula is evaluated and applied t
o six photonuclear reactions induced by 43 MeV bremsstrahlung. The exp
erimental isomeric yield ratios of (gamma, 3n) In-110m,In-g; (gamma, p
) (gamma, pn), (gamma, 2n2p) In-117m,In-g; (gamma, n) Ho-164m,Ho-g and
(gamma; 3n) Ho-162m,Ho-g are deduced.