α-Spectroscopy on CR-39 track detectors for the dosimetry of radon daughters

Mozzo, P.; Trotti, F.; Temporin, A.; Lanciai, M.; Predicatori, F.; Righetti, F.; Tacconi, A.

doi:10.1016/s0160-4120(96)00160-2

Cited by 13 publications

(4 citation statements)

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“…Geometrical models concerning the growth of the tracks' length predict that there is no linearity between the axis (major and minor) of elliptical tracks and the particles' energy. As a result, the identification of radon daughters with an alpha spectrometric method, based on the use of SSNTDs is not a trivial task [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Detection of plated-out radon progenies on CR-39 detectors

Patiris¹,

Ioannides²,

Tsabaris³

2019

hnps

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A spectrometric study of alpha particles using CR-39 solid state nuclear track detectors is described. It is based on the application of software imposed selection criteria, concerning the geometrical and optical properties of the tracks which are created by alpha particles of specific energy falling on the detector at given angles of incidence. These selection criteria are based on a preliminary study of tracks’ parameters (major and minor axes and mean value of brightness), using the TRIAC II code. Since no linear relation was found between the energy and the geometric characteristics of the tracks (major and minor axes), we resorted to the use of an additional parameter in order to classify the tracks according to the particles’ energy. Since the brightness of tracks is associated with the tracks’ depth, the mean value of brightness was chosen as the third parameter. This method could be applied as a low cost technique in studies concerning the radon’s daughters 218Po and 214Po behavior in air.

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Section: Introductionmentioning

confidence: 99%

Detection of plated-out radon progenies on CR-39 detectors

Patiris¹,

Ioannides²,

Tsabaris³

2019

hnps

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“…Solid State Nuclear Track Detectors (SSNTDs) are used extensively to provide data on various types of charged particles (Mozzo et al, 1996), and therefore used in neutron detection and dosimetry (Palacios et al, 2011), cosmic-ray physics (Tommasino, 2004) and medical applications such as boron neutron capture therapy (Smilgys et al, 2013). SSNTDs can also be used to monitor radon concentrations (Phillips et al, 2004) in the home and workplace.…”

Section: Introductionmentioning

confidence: 99%

Effects of etching time on alpha tracks in solid state nuclear track detectors

Gillmore

Wertheim

Crust

2017

Science of The Total Environment

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Solid State Nuclear Track Detectors (SSNTDs) are used extensively for monitoring alpha particle radiation, neutron flux and cosmic ray radiation. Radon gas inhalation is regarded as being a significant contributory factor to lung cancer deaths in the UK each year. Gas concentrations are often monitored using CR39 based SSNTDs as the natural decay of radon results in alpha particles which form tracks in these detectors. Such tracks are normally etched for about 4 hours to enable microscopic analysis. This study examined the effect of etching time on the appearance of alpha tracks in SSNTDs by collecting 2D and 3D image datasets using laser confocal imaging techniques. Etching times of 2 to 4 hours were compared and marked differences were noted in resultant track area. The median equivalent diameters of tracks were 20.2, 30.2 and 38.9 µm for etching at 2, 3 and 4 hours respectively. Our results indicate that modern microscope imaging can detect and image the smaller size tracks seen for example at 3 hours etching time. Shorter etching times may give rise to fewer coalescing tracks although there is a balance to consider as smaller track sizes may be more difficult to image. Thus etching for periods of less than 4 hours clearly merits further investigation as this approach has the potential to improve accuracy in assessing the number of tracks.

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“…Geometrical models [7][8][9][10][11] concerning the growth of the tracks' length predict that there is no linearity between the axis (major and minor) of elliptical tracks and the particles' energy. As a result, the identification of radon daughters with an alpha spectrometric method, based on the use of SSNTDs is not a trivial task [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%