Title :
Lessons Learned From Nuclear Decay Data Measurements in the European Metrology Research Programme ‘Metro Fission’
Author :
PommeÌ, S. ; Loidl, M. ; GarciÌa-Toraño, E. ; Marouli, M. ; Le-Bret, C. ; Crespo, M.T. ; Paepen, J. ; Mougeot, X. ; JobbaÌgy, V. ; Rodrigues, M. ; Van Ammel, R. ; Stroh, H. ; Luca, A.
Author_Institution :
Inst. for Reference Mater. & Meas., Joint Res. Centre of the Eur. Comm., Geel, Belgium
Abstract :
Nuclear decay data measurements were performed in the frame of a EURAMET project. Two specific goals were addressed: (1) High-precision measurements of 238U alpha-particle emission probabilities and (2) experimental characterization of the shape of beta spectra using cryogenic detectors. In the paper, specific lessons learned from the metrological work are highlighted. This includes effects of source preparation on the quality of alpha and beta spectrometry, the influence of exchange effects on beta spectra and the use of a magnet system to eliminate coincidence effects by conversion electrons in alpha-particle spectra.
Keywords :
alpha-particle spectra; alpha-particle spectroscopy; beta-ray spectra; beta-ray spectroscopy; coincidence techniques; cryogenics; 238U; EURAMET project; European Metrology Research Programme; alpha spectrometry; alpha-particle emission probabilities; beta spectra; beta spectrometry; coincidence effect; cryogenic detectors; exchange effect; magnet system; metro fission; nuclear decay data measurements; Atmospheric measurements; Detectors; Energy resolution; Gold; Nuclear measurements; Particle measurements; Spectroscopy; Alpha spectrometry; beta spectrometry; coincidence; cryogenic detector; exchange effect; magnet; source preparation;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2014.2317071
