A scintillating GEM for 2D-dosimetry in radiation therapy

JH Timmer, TL van Vuure, [No Value] Bom, CW van Eijk, J de Haas, JM Schippers*

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

19 Citaten (Scopus)

Samenvatting

The first results of a study on the properties of a gaseous scintillation detector based on a Gas Electron Multiplier (GEM) are reported. The detector is designed for use in position-sensitive dosimetry applications in radiation therapy. A double GEM system, operating in a 90 10% Ar-CO2 gas mixture at a gas amplification factor of similar to 3000, emits a sufficient amount of detectable light to perform measurements of similar to 1 Gy doses in two dimensions. The light yield does not suffer from quenching processes when particles with high stopping power are detected. This operation mode of GEMs offers the dosimetric advantages of a gas-filled detector and the 2D read-out can be performed with a CCD camera. Compared to the existing dosimeters, this system is relatively simple and no complex multi-electrode read-out is necessary. (C) 2002 Elsevier Science B.V. All rights reserved.

Originele taal-2English
ArtikelnummerPII S0168-9002(01)01718-1
Pagina's (van-tot)98-103
Aantal pagina's6
TijdschriftNuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment
Volume478
Nummer van het tijdschrift1-2
StatusPublished - 1-feb-2002
Evenement9th International Vienna Conference on Instrumentation - , Austria
Duur: 19-feb-200123-feb-2001

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