TITLE

A new method of alpha spectrometry based on solid-state nuclear track detection: principles, performance, applicability

AUTHOR(S)
Bondarenko, O. A.; Onischuk, Y. N.; Melnichuk, D. V.; Medvedev, S. Y.; Petrishin, V. M.
PUB. DATE
July 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 532 Issue 1, p314
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A new method for alpha particle energy determination using CR-39 is presented in this work. The method is principally based on measurement of one parameter of an etched out track, i.e., the track end diameter. It is shown that d is connected to the alpha particle range R by a simple linear relationship. An auxiliary parameter the minor axis m is involved in order to resolve the vertical incidence angle dependence of d. A special energy calibration procedure has been worked out to obtain an alpha energy spectrum avoiding explicit involvement of track detector etching velocities Vt E Vb. It is demonstrated that attainment of the good energy resolution (about 2%) for CR-39 TASTRAK detectors combining with other features provides high performance for application of this type of detectors in ultra-low alpha activity measurement of transuranic elements in biological samples. © 2000 American Institute of Physics.
ACCESSION #
5663343

 

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