Comparative analysis of CR-39 sensitivity for different sets of measurable track parameters

Inozemtsev, K.O.; Kushin, V.V.

doi:10.1016/j.radmeas.2016.04.010

Cited by 9 publications

(3 citation statements)

References 12 publications

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“…One of these uses is as a solid-state nuclear-track detector (SSNTD). Since its conceptual inception as a particle detector around sixty years ago 1 – 3 it has been employed in medical research and biology 4 , 5 , neutron dosimetry 6 – 8 , space physics 9 – 11 , nuclear physics 12 – 14 , laser-matter interactions and ion acceleration 15 – 25 , as well as in fusion experiments with deuterium–tritium 26 – 32 or proton-boron fuels 33 – 42 , to name a few. In the demonstration of fusion energy output exceeding the laser energy on target (scientific breakeven or Q > 1) in December 2022 43 , CR-39 was used–among other detectors–to measure the fusion neutron yield at the National Ignition Facility (NIF) 7 .…”

Section: Introductionmentioning

confidence: 99%

Differentiating multi-MeV, multi-ion spectra with CR-39 solid-state nuclear track detectors

Schollmeier,

Bekx,

Hartmann

et al. 2023

Sci Rep

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The development of high intensity petawatt lasers has created new possibilities for ion acceleration and nuclear fusion using solid targets. In such laser-matter interaction, multiple ion species are accelerated with broad spectra up to hundreds of MeV. To measure ion yields and for species identification, CR-39 solid-state nuclear track detectors are frequently used. However, these detectors are limited in their applicability for multi-ion spectra differentiation as standard image recognition algorithms can lead to a misinterpretation of data, there is no unique relation between track diameter and particle energy, and there are overlapping pit diameter relationships for multiple particle species. In this report, we address these issues by first developing an algorithm to overcome user bias during image processing. Second, we use calibration of the detector response for protons, carbon and helium ions (alpha particles) from 0.1 to above 10 MeV and measurements of statistical energy loss fluctuations in a forward-fitting procedure utilizing multiple, differently filtered CR-39, altogether enabling high-sensitivity, multi-species particle spectroscopy. To validate this capability, we show that inferred CR-39 spectra match Thomson parabola ion spectrometer data from the same experiment. Filtered CR-39 spectrometers were used to detect, within a background of ~ 2 × 1011 sr−1 J−1 protons and carbons, (1.3 ± 0.7) × 108 sr−1 J−1 alpha particles from laser-driven proton-boron fusion reactions.

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Section: Introductionmentioning

confidence: 99%

Differentiating multi-MeV, multi-ion spectra with CR-39 solid-state nuclear track detectors

Schollmeier,

Bekx,

Hartmann

et al. 2023

Sci Rep

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show abstract

“…Energy, direction, and charge of an incident particle may be facilely researched by measuring the trajectory profile at rightly chosen terms of temperature T of the etchant solution, etchant time and its concentration N. These parameters might affect the etching eliminating processes without irradiated detector material and detecting of the tracks [11]. The VB can be measured by various methods like track diameter method of the fission fragment, weight difference before and after etching, and laser interferometer during the chemical etching [12]. Each of these techniques has its interest and noninterest and the choice of which technique to use depends upon the specimen volume or mass and the implementations under search as well [12].…”

Section: Introductionmentioning

confidence: 99%

“…The VB can be measured by various methods like track diameter method of the fission fragment, weight difference before and after etching, and laser interferometer during the chemical etching [12]. Each of these techniques has its interest and noninterest and the choice of which technique to use depends upon the specimen volume or mass and the implementations under search as well [12].…”

Section: Introductionmentioning

confidence: 99%

Parameters Affecting Bulk Etch Rate VBfor CR-39 Detector

Flaih¹

2022

JUAPS

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In this work, the dependence of the bulk etches rate VB for CR-39detector on thetemperature T, etching time t and concentration N of the NaOH etchant solution has been studied fordetectors material types PADC. The concentration, etching time, temperatureand other conditions havebeen varied in the ranges (5.25-8.25) N, (1-5) hand (60-80) °C for PADC respectively. In this case, the thickness of material removed by etching ranges from 0.20 to 6.10𝜇m/hr for CR-39detector.The 6.25 N NaOH solution at 70°C with etching time 3 hours represents the optimum etching condition for nuclear detector CR-39.

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On the consistency among different approaches for nuclear track scanning and data processing

Inozemtsev

Kushin

Kodaira

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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Comparative analysis of CR-39 sensitivity for different sets of measurable track parameters

Cited by 9 publications

References 12 publications

Differentiating multi-MeV, multi-ion spectra with CR-39 solid-state nuclear track detectors

Differentiating multi-MeV, multi-ion spectra with CR-39 solid-state nuclear track detectors

Parameters Affecting Bulk Etch Rate VBfor CR-39 Detector

On the consistency among different approaches for nuclear track scanning and data processing

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