Intercomparative study of the detection characteristics of the CR-39 SSNTD for light ions: Present status of the besancon-dresden approaches

This paper reviews some aspects of solid-state nuclear track detectors (SSNTDs) and their applications in the radon and other research fields. Several geometrical models for the track growth given in the literature are described and compared. It is found that different models give close results for the dimensions of track openings.One of the main parameters that govern track formation is the bulk etch rate V b . Dependences of V b on different parameters such as the preparation procedures, etching conditions, irradiation before etching, etc. are examined. A review of existing methods for determination of the bulk etch rate and track etch rate V t is also given. Examples of V t functions for some detectors are presented. Some unsolved questions related to V t and some contradictory experimental results published in the literature are also summarized in the paper.Applications of SSNTDs for radon and progeny measurements are discussed. New designs of diffusion chambers that have appeared in the last few years are portrayed. A review of analytical and Monte Carlo methods for the calculation of the calibration factors in radon measurements is presented.Particular attention has been given to methods of long-term passive measurements of radon progeny with SSNTDs. These measurements are rather difficult and there is not yet a widely accepted solution. One possible solution based on the LR 115 SSNTD is outlined here.Methods for retrospective radon measurements are also described. Various applications of SSNTDs in other fields of physics and other sciences are briefly reviewed at the end of the paper. #

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“…The shape is similar to the Bragg ionizing curve. In some ways, the V function is a reflection of [104] and Green et al [38].…”

Section: Discussion About V Tmentioning

confidence: 99%

“…Another example of the V function for alpha particles in CR-39 was given by Brun et al [104] in the form:…”

Section: Examples Of Some V T Functions For Alpha Tracksmentioning

confidence: 99%

Formation and growth of tracks in nuclear track materials

Nikezić

2004

Materials Science and Engineering: R: Reports

367

163

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“…We found the parameter 2.56. By comparing the results of L max that we obtained directly from Brun et al function by using TRACK_TEST program with the results that we obtained by using Equation (1), we observed that Equation (1) will give me correct results for the maximum values of the track length alpha particles if we multiplied it with 2.56. and we found this parameter by dividing the value of L max from Brun et al function over the theoretical value of L max from Equation (1) for the same used energy, and after multiplying the theoretical values that we obtained by using Equation (1) by the factor 2.56 (Equation (2)), we got values very close to the maximum values of the track lengths that we obtained directly from Brun et al function [18] by using TRACK_TEST program [1].…”

Section: Resultsmentioning

confidence: 52%

“…The values of diameter square (D 2 ) have been plotted versus etching time (t) for the data that we obtained from Brun et al function [18], and from Nikezic and Yu et al function [19] by using TRACK_TEST program [1] for CR-39 detector for the two functions with different energies of alpha particles as shown in (Figures 1-4). We showed from the figures the non-linear relationships between the etching time and the diameter squares of the of alpha particles and by taking the fitting of the straight line of the curve we measured the slope of the linear part and the intercept with the x-axis, and then we could calculate the L max of alpha particle in the CR-39 detector by using the Equation (1) but after multiplying it with 2.56.…”

Section: Resultsmentioning

confidence: 99%

“…We found that Equation (2) Figure 8 show the relation between etching time and the diameter square. Table 1 shows the comparison between the values of L max for alpha particles in CR-39 at different energies from Brun et al function [18] by using TRACK_TEST program [1], and the theoretical method by using Equation (2). It is clear that there is a good agreement between the values of L max that have been calculated theoretically by using Equation (2) and the values of L max from Brun et al function by using TRACK_TEST program.…”

Section: Resultsmentioning

confidence: 99%

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