Etching characteristics of cellulose nitrate and CR-39 after high dose electron irradiation

J, Charvát; Spurný, F.

doi:10.1016/1359-0189(88)90004-0

Cited by 15 publications

(6 citation statements)

References 3 publications

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“…Previous work, utilizing various types of CR-39, have studied the effectiveness of various track etchants, 11 and have looked at the CR-39 response to alpha particles, [12][13][14] electrons, 15 gammas, 16 fission fragments, 17 and neutrons. 18 Studies of the CR-39 efficiency for detecting protons as a function of incident angle in the energy range of 1-10 MeV have also been undertaken, as well as preliminary studies which characterized the track diameter as a function of incident mean proton energy.…”

Section: Introductionmentioning

confidence: 99%

The response of CR-39 nuclear track detector to 1–9 MeV protons

Sinenian

Rosenberg

Manuel

et al. 2011

Review of Scientific Instruments

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The response of CR-39 nuclear track detector (TasTrak®) to protons in the energy range of 0.92–9.28 MeV has been studied. Previous studies of the CR-39 response to protons have been extended by examining the piece-to-piece variability in addition to the effects of etch time and etchant temperature; it is shown that the shape of the CR-39 response curve to protons can vary from piece-to-piece. Effects due to the age of CR-39 have also been studied using 5.5 MeV alpha particles over a 5-year period. Track diameters were found to degrade with the age of the CR-39 itself rather than the age of the tracks, consistent with previous studies utilizing different CR-39 over shorter time periods.

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Section: Introductionmentioning

confidence: 99%

The response of CR-39 nuclear track detector to 1–9 MeV protons

Sinenian

Rosenberg

Manuel

et al. 2011

Review of Scientific Instruments

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“…Many studies have been made on the bulk etch rate of CR-39 irradiated by high doses of gamma-rays (Akber et al, 1980;Green et al, 1982;O'Sullivan et al, 1982;Zamani et al, 1985;Portwood and Henshaw, 1986;Charvat and Spurny, 1988;Sharma et al, 1991;Shweikani et al, 1993;Shinha et al, 1997;Fazal-ur-Rheman et al, 2001). In these works the examined ranges of the absorbed dose were controlled to be comparable to the local energy deposition inside ion tracks.…”

Section: Introductionmentioning

confidence: 99%

Studies on the nuclear tracks in CR-39 plastics

Yamauchi

2003

Radiation Measurements

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A review was given for our recent studies on the latent tracks in CR-39 nuclear track detector. The radial size of track core has been determined through UV spectral measurements combined to the model of track overlapping and by AFM observations of slightly etched detectors. The track core radius was found to be about a few nano-meters and almost proportional to the cubic root of stopping power. As a control study, the etching properties of CR-39, irradiated by low-LET radiation, has been examined. The observed depth-dependence and dose-rate dependence of the bulk etch rate of the irradiated CR-39 were explained that the damage formation process was governed by the reaction between the radiation induced radicals and the oxygen supplied from the air. This indicated that latent tracks in CR-39 are produced through local radiation induced oxidation process along the ion paths. Studies on vibration spectra, Near-IR, FT-IR and Raman spectra, of CR-39 have been also carried out to estimate the chemical structure of the latent tracks. The creation of OH group in irradiated CR-39 has been confirmed.

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“…Projectiles with a low LET from 10 keV µm −1 to 15 keV µm −1 do not lead to the formation of tracks 54 . Thus, single electrons do not produce CR-39 track formation, only electrons in high doses of several kGy trigger radical formation 74 .…”

Section: Rcf Data Analysismentioning

confidence: 99%

Ion acceleration by an ultrashort laser pulse interacting with a near-critical-density gas jet

Ehret,

Salgado-Lopez,

Ospina-Bohorquez

et al. 2020

Preprint

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We demonstrate laser-driven Helium ion acceleration with cut-off energies above 25 MeV and peaked ion number above 10 8 MeV −1 for 22(2) MeV projectiles from near-critical density gas jet targets. We employed shock gas jet nozzles at the high-repetition-rate (HRR) VEGA-2 laser system with 3 J in pulses of 30 fs focused down to intensities in the range between 9×10 19 Wcm −2 and 1.2×10 20 Wcm −2 . We demonstrate acceleration spectra with minor shot-to-shot changes for small variations in the target gas density profile. Difference in gas profiles arise due to nozzles being exposed to a experimental environment, partially ablating and melting.

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Etching characteristics of cellulose nitrate and CR-39 after high dose electron irradiation

Cited by 15 publications

References 3 publications

The response of CR-39 nuclear track detector to 1–9 MeV protons

The response of CR-39 nuclear track detector to 1–9 MeV protons

Studies on the nuclear tracks in CR-39 plastics

Ion acceleration by an ultrashort laser pulse interacting with a near-critical-density gas jet

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