Aa. Moolenaar et al., THE CURRENT INTEGRATING TECHNIQUE APPLIED TO PR-141 MOSSBAUER-SPECTROSCOPY, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 94(4), 1994, pp. 555-564
The current integrating technique has been implemented using a CdWO4 s
cintillator mounted onto a 28x28 mm(2) PIN photodiode. With this metho
d we were able to measure count rates an order of magnitude higher tha
n commonly used in Mossbauer spectroscopy, and down to count rates as
low as 500 000 per second. Very small Pr-141 Mossbauer resonance absor
ption effects could at 4.2 K be detected (approximate to 10(-4)), some
of them amongst the smallest ever to be recorded. As an example we sh
ow the Pr-141 Mossbauer spectrum of PrCu2Si2 at 4.2 K.