S. Bhattacharya et al., USE OF YB-169 AS A CALIBRATION STANDARD, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 378(3), 1996, pp. 515-517
The energies and intensities of the gamma and X-rays in the decay of Y
b-169 (32d) have been measured with a low energy photon spectrometer (
LEPS) and a high purity germanium (HPGe) detector. This source is reco
mmended for use as a standard for low-energy efficiency calibration of
such detectors. It is also proposed to use this source as a standard
for conversion electrons, as the multipolarities and mixing ratios are
well known for most strong transitions.