Standard Practice for Use of a Dichromate Dosimetry System

Importancia y uso:

4.1 The dichromate system provides a reliable means for measuring absorbed dose to water. It is based on a process of reduction of dichromate ions to chromic ions in acidic aqueous solution by ionizing radiation.

4.2 The dosimeter is a solution containing silver and dichromate ions in perchloric acid in an appropriate container such as a sealed glass ampoule. The solution indicates absorbed dose by a change (decrease) in optical absorbance at a specified wavelength(s) ((3), ICRU Report 80). A calibrated spectrophotometer is used to measure the absorbance.

Subcomité:

E61.02

Volúmen:

12.02

Número ICS:

17.240 (Radiation measurements)

Palabras clave:

ICS 17.240; absorbed dose; absorbed dose measurements; dosimeter; dichromate dosimeter; dichromate dosimetry system; ionizing radiation;