{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T23:36:11Z","timestamp":1782948971895,"version":"3.54.5"},"reference-count":46,"publisher":"AIP Publishing","issue":"12","funder":[{"name":"Fusion Science Center","award":["415023-G"],"award-info":[{"award-number":["415023-G"]}]},{"name":"Laboratory for Laser Energetics","award":["414090-G"],"award-info":[{"award-number":["414090-G"]}]},{"name":"National Laser Users Facility","award":["DE-NA000087"],"award-info":[{"award-number":["DE-NA000087"]}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,12,1]]},"abstract":"<jats:p>The nuclear track detector CR-39 is used extensively for charged particle diagnosis, in particular proton spectroscopy, at inertial confinement fusion facilities. These detectors can absorb x-ray doses from the experiments in the order of 1\u2013100 Gy, the effects of which are not accounted for in the previous detector calibrations. X-ray dose absorbed in the CR-39 has previously been shown to affect the track size of alpha particles in the detector, primarily due to a measured reduction in the material bulk etch rate [Rojas-Herrera et al., Rev. Sci. Instrum. 86, 033501 (2015)]. Similar to the previous findings for alpha particles, protons with energies in the range 0.5\u20139.1 MeV are shown to produce tracks that are systematically smaller as a function of the absorbed x-ray dose in the CR-39. The reduction of track size due to x-ray dose is found to diminish with time between exposure and etching if the CR-39 is stored at ambient temperature, and complete recovery is observed after two weeks. The impact of this effect on the analysis of data from existing CR-39-based proton diagnostics on OMEGA and the National Ignition Facility is evaluated and best practices are proposed for cases in which the effect of x rays is significant.<\/jats:p>","DOI":"10.1063\/1.4938161","type":"journal-article","created":{"date-parts":[[2015,12,23]],"date-time":"2015-12-23T18:00:24Z","timestamp":1450893624000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":9,"title":["Impact of x-ray dose on track formation and data analysis for CR-39-based proton diagnostics"],"prefix":"10.1063","volume":"86","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4969-5571","authenticated-orcid":false,"given":"H. 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