Alpha spectrometry study on LR 115 and Makrofol through measurements of track diameter

Soares, Carlos José; Alencar, I.; Guedes, S.; Takizawa, Ryunosuke; Smilgys, Bárbara; Hadler, J.C.

doi:10.1016/j.radmeas.2012.06.010

Cited by 20 publications

(9 citation statements)

References 13 publications

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“…The deposition energy and collisions between a particle and target electrons of the material create ionization along the particle's path. A commonly employed SSNTD polymer is alkyl diglycolpolycarbonate (commercially known as CR-39 and LR115) (Soares et al, 2013). Solid-state track detectors have several advantages in terms of cost effectiveness, ease of preparation and practicality (Chaudhuri et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Investigations of electrical properties of structures Al-DNA-ITO-Al exposed to alpha particles

Al-Ta’ii

Amin

Periasamy

2015

Radiation Measurements

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Section: Introductionmentioning

confidence: 99%

Investigations of electrical properties of structures Al-DNA-ITO-Al exposed to alpha particles

Al-Ta’ii

Amin

Periasamy

2015

Radiation Measurements

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“…The PADC is chemically etched and etch pits with diameters of about 10 µm are produced around the alpha particle tracks, which can be observed under an optical microscope. Etch pit sizes and gray levels are correlated with the alpha particle energy [9] [10] [11]. The comparison of the etch pits sizes and gray levels produced by the source under investigation with those produced by known sources confirmed that it is compatible with 238 U of almost infinite thickness 2 .…”

Section: Cryogenic Set-upmentioning

confidence: 95%

Liquid argon test of the ARAPUCA device

Segreto¹,

Machado²,

Paulucci³

et al. 2018

J. Inst.

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The ARAPUCA is a novel concept for liquid argon scintillation light detection which has been proposed for the photon detection system of the Deep Underground Neutrino Experiment. The test in liquid argon of one of the first ARAPUCA prototypes is presented in this work, where the working principle is experimentally demonstrated. The prototype has an acceptance window of 9 cm 2 and is read-out by a single SiPM with active area of 0.36 cm 2 . Its global detection efficiency was estimated by exposing it to a 238 U α source and to cosmic rays and was found to be 1.15% ± 0.15%, in good agreement with the prediction of a detailed Monte Carlo simulation of the device. Several other ARAPUCA prototypes of bigger dimensions and read-out by arrays of SiPMs have been built and are actually under test. In particular 32 ARAPUCA cells have been installed inside the protoDUNE detector, which is being assembled at CERN and will be operated in the second half of 2018.

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“…The geometry of α-track cone formation in SS-NTDs can provide information on energy and charge and direct measurements of track lengths are sometimes required (Palacios et al, 2011). The α-track etch-pit diameters can act as a spectrometer in that they can be related to incident α energy (Soares et al, 2013). In one study, detectors were broken in order to make direct measurements of the track length (Dörschel et al, 2003), whilst others have utilised atomic force microscopy (AFM), but due to probe geometry the bottom of the track has not been reached (Palacios et al, 2011); a holographic technique in combination with an interferometer has also been applied to obtain surface views of tracks (Palacios et al, 2011).…”

Section: Cr-39 Detectorsmentioning

confidence: 99%

Application of confocal microscopy for surface and volume imaging of solid state nuclear track detectors

Wertheim

Gillmore

2014

Journal of Microscopy

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Summary Inhalation of radon gas is considered a risk factor in the development of lung cancer. Solid state nuclear track detectors (SSNTDs) are often used for monitoring radon levels. We have previously shown that 3D imaging can help distinguish real tracks from artefact. In this study, we investigated particle tracks in nine SSNTDs using surface and volume visualisation from confocal microscope imaging. An Olympus LEXT OLS 4000 confocal microscope equipped with the Olympus LEXT Remote Development Kit was used to acquire z‐stack images and surface data from the SSNTDs. Surface and volume visualisation analysis methods were developed and applied to examine the data. The mean (standard deviation) depth of 45 tracks from the nine detectors was 9.5 (4.6) μm. The mean difference in track depth using the two analysis techniques was 0.08 μm, thus showing good agreement. Furthermore, volume visualisation should enable assessment of the structure of tracks deep in the detector.

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Alpha spectrometry study on LR 115 and Makrofol through measurements of track diameter

Cited by 20 publications

References 13 publications

Investigations of electrical properties of structures Al-DNA-ITO-Al exposed to alpha particles

Investigations of electrical properties of structures Al-DNA-ITO-Al exposed to alpha particles

Liquid argon test of the ARAPUCA device

Application of confocal microscopy for surface and volume imaging of solid state nuclear track detectors

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