The use of fricke dosimetry for low energy x-rays

Author:

Austerlitz Carlos de1,Souza Viviane1,Villar Heldio Pereira2,Cordilha Aloisio3

Affiliation:

1. Centro Regional de Ciências Nucleares, Brasil

2. Centro Regional de Ciências Nucleares, Brasil; Escola Politécnica de Pernambuco, Brasil

3. Instituto de Radioproteção e Dosimetria, Brasil

Abstract

The performance of four X-ray qualities generated in a Pantak X-ray machine operating at 30-100 kV was determined with a parallel-plate ionization chamber and a Fricke dosimeter. X-ray qualities used were those recommended by Deutsch Internationale Normung DIN 6809 and dose measurements were carried out with Plexiglas® simulators. Results have shown that the Fricke dosimeter can be used not only for soft X-ray dosimetry, but also for the maintenance of low-energy measuring systems' calibration factor.

Publisher

FapUNIFESP (SciELO)

Subject

Multidisciplinary

Reference14 articles.

1. Clinical Oncology (1984), A Multidisciplinary Approach

2. Manuall of Dosimetry in Radiotherapy,1970

3. Monte Carlo- versus pencil-beam/collapsed-cone-dose calculation in a heterogeneous multi-layer phantom;krieger T.;Phy. Med. Biol.

4. Normas Básicas de Proteção Radiológica,1973

5. German Standard, Application of X-rays with Tube Voltage between 10 and 100 kV in Radiotherapy and soft Tissue Diagnostics,1998

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