Discriminative detection of deposited radon daughters on CR-39 track detectors using TRIAC II code

Patiris, D. L.; Ioannides, K. G.

doi:10.1016/j.nimb.2009.04.009

Cited by 8 publications

(6 citation statements)

References 31 publications

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“…The geometrical parameters of the tracks are associated with the particles' energy and angle of incidence. However, developing an alpha spectroscopic method based on SSNTDs is not a trivial task, as previous studies have shown the absence of a linear relationship between the track axis and the energy of the incident particles [1][2][3]. Optical parameters, such as the gray scale level of the tracks, convey additional information on the track depth, which increases monotonically with the energy and angle of incidence of the alpha particles [2].…”

Section: Introductionmentioning

confidence: 99%

Validation of the ImageJ package for alpha track counting on Solid State Nuclear Track Detectors

Alexandropoulou

Sarigiannidis

Papachristodoulou

et al. 2019

hnps

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In the present work, an alpha spectroscopic method using CR39 nuclear track detectors is being evaluated, elaborating on track parameters from different alpha particle sources. The freely-available, Java-based ImageJ software was used to obtain the major and minor axis length, the area and the mean gray level of the recorded tracks. A multi-paramater approach based on Principal Component Analysis of the data was subsequently applied and succeeded in grouping the recorded tracks according to alpha-particle energy. The methodology was further applied for the separation of radon progeny on CR39 detectors exposed in a radon chamber.

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Section: Introductionmentioning

confidence: 99%

Validation of the ImageJ package for alpha track counting on Solid State Nuclear Track Detectors

Alexandropoulou

Sarigiannidis

Papachristodoulou

et al. 2019

hnps

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“…Indeed, quantification relies on visual grain counting, reflectance or absorbance measurements [19]. Furthermore, quantification becomes challenging when alpha tracks are superimposed on each other [20], which is likely to occur with insoluble actinides or aggregates.…”

Section: Introductionmentioning

confidence: 99%

Actinide bioimaging in tissues: Comparison of emulsion and solid track autoradiography techniques with the iQID camera

et al. 2017

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This work presents a comparison of three autoradiography techniques for imaging biological samples contaminated with actinides: emulsion-based, plastic-based autoradiography and a quantitative digital technique, the iQID camera, based on the numerical analysis of light from a scintillator screen. In radiation toxicology it has been important to develop means of imaging actinide distribution in tissues as these radionuclides may be heterogeneously distributed within and between tissues after internal contamination. Actinide distribution determines which cells are exposed to alpha radiation and is thus potentially critical for assessing absorbed dose. The comparison was carried out by generating autoradiographs of the same biological samples contaminated with actinides with the three autoradiography techniques. These samples were cell preparations or tissue sections collected from animals contaminated with different physico-chemical forms of actinides. The autoradiograph characteristics and the performances of the techniques were evaluated and discussed mainly in terms of acquisition process, activity distribution patterns, spatial resolution and feasibility of activity quantification. The obtained autoradiographs presented similar actinide distribution at low magnification. Out of the three techniques, emulsion autoradiography is the only one to provide a highly-resolved image of the actinide distribution inherently superimposed on the biological sample. Emulsion autoradiography is hence best interpreted at higher magnifications. However, this technique is destructive for the biological sample. Both emulsion- and plastic-based autoradiography record alpha tracks and thus enabled the differentiation between ionized forms of actinides and oxide particles. This feature can help in the evaluation of decorporation therapy efficacy. The most recent technique, the iQID camera, presents several additional features: real-time imaging, separate imaging of alpha particles and gamma rays, and alpha activity quantification. The comparison of these three autoradiography techniques showed that they are complementary and the choice of the technique depends on the purpose of the imaging experiment.

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“…In 2006 Patiris, D. L. et al [10] used a computer program named TRIAC written in MATLAB which has been developed for track recognition and track parameters measurements from images of the solid state nuclear track detectors type CR-39. The program using image analysis tools counts the number of tracks for dosimetry proposes and classifies the tracks according to their radii for the spectrometry of alpha-particles as using same computer program named TRIAC II has been developed for recognition and parameters measurements of particles "tracks" from images of solid state nuclear track detectors.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Nuclear Track Parameters of CN-85 Detector Irradiated to Thermal Neutrons by Using MATLAB Program

Al-Jobouri¹,

Rajab²,

Najam³

2015

Detection

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CN-85 detector which covered with boric acid H 3 Bo 3 pellete has been irradiated by thermal neutrons from ( 241 Am-9 Be) source with activity 12 Ci and neutron flux 10 5 n. cm −2 . s −1 . The irradiation times-T D for detector were 4 h, 8 h, 16 h and 24 h. The track detector has been etched with sodium hydroxide. After chemical etching of the irradiated CN-85 detector, the images have been taken from a digital camera connected to the optical microscope. Image processing for the output images has been performed using MATALB program, and these images were analyzed and we had found the following relations: a) The relation between summation of opened track or surface density for tracks (intensi- 0.4225, 0.845, 1.2675 and 1.69 µm). The study indicates the possibility of using the analysis of image processing to CN-85 detector for classification of α-particle emitters through limitation of radius of track-R T , in addition to the contribution of these techniques in preparation of nano-filters and nono-membrane in nanotechnology fields. ty-IT) varies with radius of opening (track radius-R T ). b) The relation between the tracks number-N T varies with the tracks diameter-D T (in micrometer) and tracks area-A T . That analysis of image processing was obtained, and the track intensity-I T was decreased with increase of track radius-R T at all of the irradiation time-T D . And the track intensity-I T was increased with increasing irradiation time-T D (h) for different track radius-R T (

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Discriminative detection of deposited radon daughters on CR-39 track detectors using TRIAC II code

Cited by 8 publications

References 31 publications

Validation of the ImageJ package for alpha track counting on Solid State Nuclear Track Detectors

Validation of the ImageJ package for alpha track counting on Solid State Nuclear Track Detectors

Actinide bioimaging in tissues: Comparison of emulsion and solid track autoradiography techniques with the iQID camera

Analysis of Nuclear Track Parameters of CN-85 Detector Irradiated to Thermal Neutrons by Using MATLAB Program

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