Page 544 - Radiation Safety
P. 544
Nuclear Gauging System
Radiation source:
▪ Can be in the form of radioactive sealed source or
irradiating apparatus.
▪ Use to produce radiation required by the system.
▪ Its choice depends on:
–Availability.
–Cost.
–Half-life; long enough to cover useful life of device
and to minimize source changes and system
inaccuracy.
–Type of radiation.
–Energy of radiation.
