Bulk etch rate measurements and calibrations of CR39 and Makrofol nuclear track detectors

2008/11/18 by V. Togo, Togo, V., I. Traore +2
Medicine · Physics and Astronomy · #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Nuclear Physics and Applications #Radiation Detection and Scintillator Technologies #Radiation Therapy and Dosimetry #physics.ins-det

paper · pdf · doi:10.48550/arxiv.0811.2885

4 pages, 6 eps figures. Talk given at the 24th ICNTS, Bologna, Italy (1-5 Sept. 2008)

arxiv created 2008/11/18 · openalex publication_date 2008/11/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We developed a new method for determining the bulk etch rate velocity based on both cone height and base diameter measurements of the etched tracks. This method is applied here for the calibration of CR39 and Makrofol nuclear track detectors exposed to 158 A GeV In⁴⁹⁺ and Pb⁸²⁺ ions, respectively. For CR39 the peaks corresponding to indium ions and their different fragments are well separated from Z/beta = 7 to 49: the detection threshold is at REL ~ 50 MeV cm² g^-1, corresponding to a nuclear fragment with Z/beta = 7. The calibration of Makrofol with Pb⁸²⁺ ions has shown all peaks due to lead ions and their fragments from Z/beta ~ 51 to 83 (charge pickup). The detection threshold of Makrofol is at REL ~ 2700 MeV cm² g^-1, corresponding to a nuclear fragment with Z/beta = 51.

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