PADC nuclear track detector for ion spectroscopy in laser-plasma acceleration.

Autor: Seimetz M; Instituto de Instrumentación para Imagen Molecular (I3M), CSIC-Universitat Politècnica de València, Valencia, Spain. Electronic address: mseimetz@i3m.upv.es., Peñas J; Instituto Galego de Física das Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain., Llerena JJ; Instituto Galego de Física das Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain., Benlliure J; Instituto Galego de Física das Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain., García López J; Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Sevilla, Spain; Centro Nacional de Aceleradores (CNA), Universidad de Sevilla-CSIC-Junta de Andalucía, Sevilla, Spain., Millán-Callado MA; Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Sevilla, Spain; Centro Nacional de Aceleradores (CNA), Universidad de Sevilla-CSIC-Junta de Andalucía, Sevilla, Spain., Benlloch JM; Instituto de Instrumentación para Imagen Molecular (I3M), CSIC-Universitat Politècnica de València, Valencia, Spain.
Jazyk: angličtina
Zdroj: Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) [Phys Med] 2020 Aug; Vol. 76, pp. 72-76. Date of Electronic Publication: 2020 Jun 28.
DOI: 10.1016/j.ejmp.2020.06.005
Abstrakt: The transparent polymer polyallyl-diglycol-carbonate (PADC), also known as CR-39, is widely used as detector for heavy charged particles at low fluence. It allows for detection of single protons and ions via formation of microscopic tracks after etching in NaOH or KOH solutions. PADC combines a high sensitivity and high specificity with inertness towards electromagnetic noise. Present fields of application include laser-ion acceleration, inertial confinement fusion, radiobiological studies with cell cultures, and dosimetry of nuclear fragments in particle therapy. These require precise knowledge of the energy-dependent response of PADC to different ion species. We present calibration data for a new type of detector material, Radosys RS39, to protons (0.2-3 MeV) and carbon ions (0.6-12 MeV). RS39 is less sensitive to protons than other types of PADC. Its response to carbon ions, however, is similar to other materials. Our data indicate that RS39 allows for measuring carbon ion energies up to 10 MeV only from the track diameters. In addition, it can be used for discrimination between protons and carbon ions in a single etching process.
(Copyright © 2020 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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