Also, for personnel dosimetry purposes, measurements of exposure rates and exposure times are made at positions very close to personnel during the course of work in a radiation field. This is accomplished with the use of portable survey meters, which apart from indicating radiation exposure rate, can be set to integrating mode to measure exposure for a period of time.
This is a photo of digital Victoreen Personal Dosimeter Model 885 and Victoreen Panoramic survey meter Model 470A, which are currently in use at IASA.