Determination of track counting loss threshold of spark counter due to high track densities on strippable LR115 II nuclear track detectors

Stanić, Denis; Sovilj, Marina Poje; Miklavčić, Igor; Radolić, Vanja

doi:10.1016/j.radmeas.2017.03.035

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…The track densities for CR-39 were determined using an optical microscope with magnification (40x10) coupled with a digital camera connected to a personal computer to facilitate the examination of the alpha tracks on the computer monitor. The track density on the LR-115-II residual films was determined using a spark counter [19]. To enlarge the sizes of the track holes, "pre-sparking" was performed at 900 volts.…”

Section: Solid-state Nuclear Track Measurementsmentioning

confidence: 99%

Measurements of 232Th/238U ratio using different techniques: A comparative study

Arafa,

Mahmoud,

Yousf

et al. 2023

RAP Conference Proceedings

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The present work was conducted to determine Th/U ratios in different types of natural rock samples (sedimentary, conglomerate, igneous and sediments) using high-purity germanium detector, solid state nuclear track detectors and inductively coupled plasma mass spectrometers. A thin source approach method for alpha tracks measurements was used. A new method was introduced for forming a thin layer of the rock sample. The track densities were obtained using an optical microscope coupled with a digital camera and spark counter. Even though the measurements were carried out using very different techniques, they showed comparable values of Th/U ratio for most of the rock samples.

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Section: Solid-state Nuclear Track Measurementsmentioning

confidence: 99%

Measurements of 232Th/238U ratio using different techniques: A comparative study

Arafa,

Mahmoud,

Yousf

et al. 2023

RAP Conference Proceedings

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“…The measured track density is then converted in to the radon or thoron progeny concentration using the calibrated sensitivity factors [1,2]. But in cases of occupational exposure, where track density is very high (more than 1000 tracks cm −2 ), this method may give under-estimation of inhalation dose due to overlapping of tracks [3][4][5]. In order to assess these type of high exposure conditions, measurement of track density can be done using Image Analyzer system, but the track counting takes more time (around 5-10 minutes for one film in contrary to 1-2 minute in spark counter).…”

Section: Introductionmentioning

confidence: 99%

Application of UV-Visible spectroscopy for measurement of Track density in LR-115 SSNTD based DTPS/DRPS

et al. 2018

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As measurement of inhalation dose due to radon and thoron progeny is very important in indoor as well as occupational environments, the solid state nuclear track (LR-115) based passive progeny sensors such as Direct Radon Progeny Sensor (DRPS) and Direct Thoron Progeny Sensor (DTPS) are extensively used for this purpose. These detectors need to be chemically etched and spark counted for estimation of track density which is then converted into progeny concentration and finally into inhalation dose using appropriate calibration factors. But for high exposure situations, these detectors have limitations and leads to underestimation of dose. In the present study, we have investigated the possibility of using UV-Visible spectroscopy as an alternative way to estimate the track density in these detectors which can be converted into corresponding progeny concentrations and ultimately to inhalation dose. The transmission spectrum of these progeny sensors under UV-Visible spectrophotometer shows a characteristic peak about wavelength of 380 nm and the variation in transmission at this wavelength was analyzed against the varying alpha exposure. The variation of transmission at 380 nm was observed to be linear with respect to the track density and these linear relations could be used for estimating track density for unknown exposure. This method is a non-destructive alternative way of measuring track density in the DTPS and DRPS and it will be useful for high exposure conditions.

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Etched-Track Technique in Radon Metrology: Recent Advances and Quality Assurance

Abo-Elmagd

2024

Handbook of Quality System, Accreditation and Conformity Assessment

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Determination of track counting loss threshold of spark counter due to high track densities on strippable LR115 II nuclear track detectors

Cited by 6 publications

References 3 publications

Measurements of 232Th/238U ratio using different techniques: A comparative study

Measurements of 232Th/238U ratio using different techniques: A comparative study

Application of UV-Visible spectroscopy for measurement of Track density in LR-115 SSNTD based DTPS/DRPS

Etched-Track Technique in Radon Metrology: Recent Advances and Quality Assurance

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