Characterization of Makrofol<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mrow><mml:mtext>®</mml:mtext></mml:mrow></mml:math> DE 1-1 (bisphenol-A polycarbonate) as SSNTD and its application in the alpha particle detection

Ghazaly, M. El; Aydarous, Abdulkadir; Salama, T.; El-Naggar, Hala I.

doi:10.1016/j.radphyschem.2020.109101

Cited by 4 publications

(1 citation statement)

References 22 publications

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“…Figures 2(A) and (D) show green color channel photomicrographs of area 100×92 mm 2 of 4 MeV alpha particles in the CR-39 detector etched in 6.25 M NaOH at 70 °C for 2 and 18 h, respectively. The green colour channel was chosen for the current investigation because it has the highest contrast when compared to the red and blue channels [21][22][23]. Qualitatively, both photomicrographs had good clarity and contrast, with the etching time of 2 h having a better contrast than the etching period of 18 h. The intensity profiles in figures 2(B) and (E) are obtained by projection to ten pixels that equate to 0.833 μm of the grey level along the alpha particle track, white line in alpha track in (A) and (D).…”

Section: Resultsmentioning

confidence: 99%

Alpha particle spectrometry based on the mean grey level and visibility of track etch-pit in CR-39 Nuclear Track Detector

Al-Sayed¹,

Ghazaly²,

Ghanim³

et al. 2022

Phys. Scr.

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The CR-39 detector is used in this work to present an exceptional technique for alpha-particle spectrometry. This new approach is based on determining the mean grey level and visibility of the alpha particle track etch-pit. The latter is used to discriminate alpha particles of different energies that produce the same track diameter at the same etching time. CR-39 detectors had been irradiated by alpha particles with energies 1, 2, 3, 4, and 5 MeV thereafter are chemically etched in 6.25 M NaOH at 70 °C. At various etching periods, the diameter, the mean grey level, and the visibility of the alpha particle track etch-pit were measured. The findings reveal that for a given alpha particle, the mean grey level rises with the increase of the etching time. Conversely, both the visibility and contrast of alpha particle tracks are deteriorating. The alpha particle track etch-pit of equal diameters results from an alpha particle of different energies having different mean grey levels and visibility. In addition, it is confirmed that the mean grey level and visibility of the alpha particle etch-pit are shown to be correlated with the alpha particle energy at a particular etching time. Finally, the proposed approach is intended to overcome the non-monotonical relationship of diameter to the energy of alpha particle track etch-pit. So, our findings have the potential to broaden the application of CR-39 as an alpha particle spectrometer.

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Section: Resultsmentioning

confidence: 99%