WELL COUNTER

Typical Number in Hospital:

Cost Bands:

References: 3

This is a special type of scintillation counter in which the scintillation crystal is shaped in the form of a well to receive a small vial containing the sample whose radioactivity is to be counted. The crystal must be covered in a thin aluminium can to exclude light, and so they are only suitable for counting relatively high radiation energy (greater than 20 keV of gamma rays). They are used in an autogamma counter in conjunction with an automatic sample changer.