Calibration of solid state nuclear track detectors at high energy ion beams for cosmic radiation measurements: HAMLET results

The “PHOENIX” Space Experiment: Study of Space Radiation Impact on Cells Genetic Apparatus on Board the International Space Station

“…The corresponding bulk etch rate (V b ) was 1.35±0.06 μm•h -1 [6]. This value agrees well with result of [7]. After chemical etching the detector's were manually scanned in 2-D and 3-D modes [6] using the Carl Zeiss® AxioScope.A1 microscope equipped with digital camera.…”

“…Passive dosimeters comprising CR-39™ "Tastrak" (TASL Ltd., Bristol, UK) solid state nuclear track detector (SSNTD) and LiF:Mg,Ti (93% 7 Li and 7% 6 Li) "DTG-4" (ROSATOM, Russia) thermoluminescent detector (TLD) were applied in the experiment for the linear energy transfer (LET) spectra and dose measurements [5].…”

“…In this case diameters of the track opening and value of removed layer thickness are applied for the sensitivity V findings. The sensitivities V were converted to LET values using the calibration function [7]. The detector's lower LET threshold turned out to be ~7.5 keV/μm (H 2 O).…”

Strong etching formulation (time and rate) for PADC with deep depth bulk etch rate study

“…Since its discovery in 1978 [24], PADC (also known as CR-39 TM ) is considered as one of the most successful SSNTD for detection of charged particles with linear energy transfer greater than 10 keV/μm (in water) [25]. It is a highly cross-linked thermoset polymer.…”

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

“…This relation makes it possible to convert V into LET with the help of a calibration function V ¼ f (LET). It is generally accepted in calibration measurements to assign LET-value to biological tissue (or to water as a tissueequivalent) in order to consider final LET distribution in biological tissue (Szab o and P alfalvi, 2012). In addition, universal LET (H 2 O) unit is convenient for experimental data comparison from different PNTDs.…”