Further Applications of Track Detectors and Some Directions for the Future

Durrani, S.A.

doi:10.1016/b978-0-08-020605-9.50013-7

Cited by 7 publications

(7 citation statements)

References 117 publications

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“…A few decades ago, numerous passive detectors, such as solid-state nuclear track detectors (SSNTD), were utilized to detect heavy ions from different radiation sources, including cosmic rays, accelerators, and laser-matter interactions 1 . The most common SSNTD is poly allyl diglycol carbonate (PADC), commonly known as Colombia Rains PADC.…”

Section: Introductionmentioning

confidence: 99%

“…PADC tracks range from several micrometers to several nanometers for scanning with a high spatial resolution imaging system such as atomic force and confocal microscopes. Meanwhile, spatial resolution amounts to several micrometers for scanning with an ordinary optical microscope [1][2][3][4][5][6] . The major disadvantage of SSNTD is the time resolution of the PADC detector; it is impossible to discern the occurrence of the tracks in the PADC detector.…”

Section: Introductionmentioning

confidence: 99%

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On the randomness and correlation in the trajectories of alpha particle emitted from 241Am: Statistical inference based on information entropy

Ghazaly

Elmaghraby

Alsayed

et al. 2022

Preprint

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Most particle detectors are based on the hypothesis that particles are emitted randomly upon nuclear decay. In the present work, we tested the hypothesis of the existence of correlation in the random trajectories of alpha particles emitted from 241Am source and the null hypothesis of random trajectories. The trajectories were clued through the registration of track in a solid-state nuclear track detector. The experimental parameters were optimized to identify the possible sources of correlation in the track registration and the detector conditions upon exposure and etching to avoid misleading results. The optimization included authentication of linearity in registration efficiency with exposure time to prevent coalescence of registered tracks. The statistical inference processes were based upon adaptive quadrates analysis of the spatial data, and entropy and divergence analysis of the quadrate data together with the null hypothesis of Poisson distribution of random trajectories. The clustering and dispersion analysis were performed with central deviation tendency, empirical K-function, radial distribution analysis, and proximity Analysis. Results showed a pattern of gained information within the registered tracks that may be attributed to being a consequence of the structure of the source.arXiv link: https://arxiv.org/abs/2204.11124

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the randomness and correlation in the trajectories of alpha particle emitted from 241Am: Statistical inference based on information entropy

Ghazaly

Elmaghraby

Alsayed

et al. 2022

Preprint

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“…Similarly, magnetic spectrometers relate the particle properties with the deflection, but they are useful only when the particle species is known, for example with electron beams. Track detectors can provide the number of particles and also can give some kind of discrimination between the various species, when suitable filters are used [7][8][9]. In laser-plasma interaction experiments, multiple particle species are generated, such as electrons, protons, and ions.…”

Section: Introductionmentioning

confidence: 99%

Development of advanced Thomson spectrometers for nuclear fusion experiments initiated by laser

Giorgio¹,

Consoli²,

Angelis³

et al. 2020

J. Inst.

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A: Thomson Spectrometers are devices capable to separate the several particle species (with distinct charge-to-mass ratio and energy) produced by the different regimes of laser-matter experiments. In this work we describe the development of advanced spectrometers for low and medium energy particles. In particular, they are suitable for protons in the 5 keV-2 MeV and 100 keV-10 MeV energy ranges, respectively. The new prototypes of spectrometers have been designed and built to have a high sensitivity and be adaptable to many experimental situations and configurations, and are tailored to the characterization of charged particles and products of nuclear fusion reactions initiated by high energy and intensity lasers. Details on the realized prototypes, on their characterization and testing, together with the first experimental results are discussed. K: Plasma diagnostics -charged-particle spectroscopy; Spectrometers; Erasable phosphors; Plasma generation (laser-produced, RF, x ray-produced) 1Corresponding author.

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“…Indeed, the track density analysis on a detector put in contact with a tissue section that contains a heavy particle emitter allows determination of the spatial distribution of the element in the sample. This is the basis of autoradiographic analysis (Durrani & Bull, 1987).…”

Section: Introductionmentioning

confidence: 99%

“…The distribution and localization of a particle emitter element in a sample can be determined through the autoradiography image produced on a solid state nuclear track detector (SSNTD) (Durrani & Bull, 1987). The use of these materials as heavy ion detectors is based on the fact that the damaged zones produced along the ion trajectories remain altered in a permanent way.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Observation of Cells and Nuclear Tracks from the Boron Neutron Capture Reaction by UV-C Sensitization of Polycarbonate

Portu

Rossini²,

Thorp

et al. 2015

Microsc Microanal

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The distribution of boron in tissue samples coming from boron neutron capture therapy protocols can be determined through the analysis of its autoradiography image on a nuclear track detector. A more precise knowledge of boron atom location on the microscopic scale can be attained by the observation of nuclear tracks superimposed on the sample image on the detector. A method to produce an "imprint" of cells cultivated on a polycarbonate detector was developed, based on the photodegradation properties of UV-C radiation on this material. Optimal conditions to generate an appropriate monolayer of Mel-J cells incubated with boronophenylalanine were found. The best images of both cells and nuclear tracks were obtained for a neutron fluence of 1013 cm-2, 6 h UV-C (254 nm) exposure, and 4 min etching time with a KOH solution. The imprint morphology was analyzed by both light and scanning electron microscopy. Similar samples, exposed to UV-A (360 nm) revealed no cellular imprinting. Etch pits were present only inside the cell imprints, indicating a preferential boron uptake (about threefold the incubation concentration). Comparative studies of boron absorption in different cell lines and in vitro evaluation of the effect of diverse boron compounds are feasible with this methodology.

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Further Applications of Track Detectors and Some Directions for the Future

Cited by 7 publications

References 117 publications

On the randomness and correlation in the trajectories of alpha particle emitted from 241Am: Statistical inference based on information entropy

On the randomness and correlation in the trajectories of alpha particle emitted from 241Am: Statistical inference based on information entropy

Development of advanced Thomson spectrometers for nuclear fusion experiments initiated by laser

Simultaneous Observation of Cells and Nuclear Tracks from the Boron Neutron Capture Reaction by UV-C Sensitization of Polycarbonate

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