Caracterización física de fotorresistencias como dosímetros en radioterapia

  1. Juan Román-Raya 1
  2. Isidoro Ruiz-García 2
  3. Catalina de los Ángeles Rodríguez-Cano 3
  4. Miguel Ángel Carvajal 2
  5. Damián Guirado 4
  1. 1 Hospital Universitario Virgen de las Nieves
    info
    Hospital Universitario Virgen de las Nieves

    Granada, España

    ROR https://ror.org/02f01mz90

    Geographic location of the organization Hospital Universitario Virgen de las Nieves
  2. 2 Universidad de Granada
    info
    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

    Geographic location of the organization Universidad de Granada
  3. 3 Hospital Universitario Torrecárdenas, Almería, España
  4. 4 Hospital Universitario Clínico San Cecilio, Granada, España
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Journal:
Revista de Física Médica

ISSN: 1576-6632

Year of publication: 2024

Volume: 25

Issue: 1

Pages: 61-64

Type: Article

DOI: 10.37004/SEFM/2024.25.1.005 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Revista de Física Médica

Abstract

The quality control of radiotherapy treatments relies on the use of dosimetric sensors. Currently, ionization chambers and solid-state diodes, along with electrometers as reading systems, are the most commonly used systems for this purpose. This study investigates new dosimetric systems manufactured from commercial electronic devices, significantly reducing costs by not being specifically designed for use in radiotherapy. In particular, various models of commercial light-dependent resistors (LDRs) were analyzed as an alternative to existing dosimetric systems for dosimetry. A characterization of the response to ionizing radiation was conducted for different commercial models of LDRs associated with a clinical electrometer. Irradiations were performed under the usual conditions of radiotherapy treatments. Experimental results show that these LDR models can serve as an alternative to currently used dosimetric sensors, with the advantages of high sensitivity, smaller size, lower economic cost, and requiring lower polarization voltages.

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