ESR response of watch glasses to proton beams

• Published in: Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 268; no. 17; pp. 2712 - 2718
• Main Authors: Longo, A., Basile, S., Brai, M., Marrale, M., Tranchina, L.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-09-2010
• Subjects: Clocks; Electron paramagnetic resonance; ESR; Fluorescence; Glass; Mathematical models; Modulation; Proton beam; Proton beams; Recording; Watch glasses; Watches; ESR; Watch glasses; Proton beam
• ISSN: 0168-583X; 1872-9584
• DOI: 10.1016/j.nimb.2010.05.073

In this paper we have analyzed the electron spin resonance (ESR) signal of watch glasses irradiated with ≈60
MeV proton beams in the dose range between 1 and 105
Gy. The composition of samples expressed in oxides weight percentages has been obtained carrying out X-ray fluorescence spectrometry (XRF) measurements. The ESR signal has been studied in terms of its dependence on microwave power and modulation field in order to choose the optimal recording parameters. The dependence of the radioinduced signal on the exposure dose has been investigated. A numerical procedure aimed at improving the sensitivity in the low dose range has been developed.