Characterization of Makrofol ® DE 1-1 for alpha particle radiography. (September 2017)

• Record Type: Journal Article
• Authors: El Ghazaly, M.; Aydarous, Abdulkadir; Al-Thomali, Talal A.
• Is Part Of: Radiation physics and chemistry. Volume 138(2017)
• Page Start: 81
• Page End: 86
• Publication Date: 2017-09
• Subjects: Makrofol®DE 1-1 -- Alpha particle -- Spatial resolution -- Contrast -- Edge spread function -- Color channel level; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2017.03.042
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: Makrofol ® DE 1-1 (bisphenol-A polycarbonate) was investigated for alpha particle radiography. The edge spread function (ESF) was measured by razor-blade's edge. Makrofol ® DE 1-1 detectors were irradiated with perpendicular incident alpha particles of energy 2.5, 4 and 5.4 MeV, thereafter they were etched in 75% 6N KOH+25% C2 H5 OH at a temperature of 50 °C for different durations. The etched Makrofol®DE 1-1 detectors were imaged with an optical microscope equipped with a CCD camera. The results revealed that the green channel of the original RGB image provides the highest contrast comparing with red and blue channel by a factor of 27.6% of the original RGB image. The image contrast of alpha particle-irradiated Makrofol®DE 1-1 detector was found to be inversely related to the etching time since the alpha particle tracks proceed from a conical phase to spherical phase. The spatial resolution of alpha particle-irradiated Makrofol®DE 1-1 detector, in terms of line spread function, was found to deteriorate as the etching time increases for all examined alpha particle energies. The results revealed the potential capability of Makrofol®DE 1-1 detector as an efficient detector for alpha particle radiography such as autoradiography. Abstract : Highlights: Makrofol®DE 1-1 detector was investigated for alpha particles radiography. The green channel of RBG image provides the highest contrast. The image contrast Makrofol®DE 1-1 is inversely proportional to the etching time. The spatial resolution deteriorates by increasing the etching time. Makrofol®DE 1-1 detector can be used for alpha particles radiography.