Convolution of TLD and SSNTD measurements during the BRADOS-1 experiment onboard ISS (2001)

Cosmic Radiation Exposure of Biological Test Systems During the EXPOSE-E Mission

“…From the mission-integrated doses, the average dose rate was calculated to range from 207 -12 lGy/d to 368 -27 lGy/d. These numbers are very close to the dose rates measured inside the Columbus laboratory and other segments of the ISS, which have an average shielding between 5 and 10 g/ cm 2 (Hajek et al, 2008;Reitz et al, 2005Reitz et al, , 2009Berger, 2008). This similarity in dose rates inside EXPOSE-E and inside the Columbus module reflects the high amount of shielding of the biological samples located within the EXPOSE-E facility.…”

“…As a follow-up of the Dosimetric Mapping (DOSMAP) experiment (Reitz et al, 2005), DOSIS is a comprehensive and overarching international dosimetry program dedicated to determining the nature and mapping the distribution of the radiation field inside and outside the European Columbus laboratory with active and passive 1 radiation detectors. Passive thermoluminescence detectors (TLDs) have been applied for radiation measurements on board various space stations and space shuttle missions since the beginning of the space age (Berger, 2008;Reitz et al, 2005Reitz et al, , 2009Hajek et al, 2008). Their small size of a few cubic millimeters and low mass (around 20 mg) allow affixing them close to the samples of interest.…”

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

“…This material is in use since our first dose measurements on the ISS [6]. The quality of the TASTRAK detectors has been being continuously monitored by testing the bulk etch rate.…”

Boron Studies in Interdisciplinary Fields Employing Nuclear Track Detectors (NTDs)

“…For a real case when PADC detector (TASTRAK, TASL Co Ltd, Bristol, UK) is used for detecting alpha particles from the 10 BNC reaction, usually as control, a standardized, and collimated 210 Po alpha source is used, having an energy of 4.6 MeV (Szabó et al, 2002). If the etching is done in 6N NaOH at 70 °C, which results in a bulk etch velocity of V B =1.34 ± 0.06 μm/h (Hajek et al 2008), then the track parameters are as summarized in While the averaged track etch rate, V T , can be determined from Equ (5), for perpendicularly incident particles, when the incident angle, Θ = 0°, in the case of oblique incidence the situation is not so simple. If the incidence angle measured is too high, then the track can be removed during the etching process, therefore, to establish the real number of incident alpha particles the critical detection angle, Θ c , is introduced which is used then for correction purpose.…”