In Reply to: x-ray quantitative measurement posted by richard graziano on 05/09/01 at 5:10 PM:
A device for measuring xray dose is called a Dosimeter, of which there are various types:
Quartz Fibre Dosimeter - uses a small charged quartz fibre, which discharges in the presence of ionising radiation - this movement can be read against a scale.
TLD - Thermo Luminescent Dosimeter. These are the like the film badges radiation workers use, but need specialist equipment to read the dose.
Electronic Dosimeter - based on GM (Geiger-Muller) tubes. Output usually fed to a counter.
Ionisation Chamber - good for calibrating equipment. Ionised gas in a given volume is meaured by passing a current. Current is a measure of the dose.