A radiation work permit describes the task and area, current dose rates and contamination levels, required protective clothing and respiratory protection, RP coverage, dose estimate, and the alarm setpoints for electronic dosimeters. Workers must read or be briefed on it and sign or log onto it before entry, and their dose is tracked against it. Jobs that change scope, or areas that change condition, require the RWP to be revised.
You're signed onto the wrong RWP, this one's for the pump bay, not the regen room.
Read the survey map on the RWP before entry; knowing where the low-dose waiting area is saves more dose than most shielding.
Also heard as
- radiation work permit
- rad work permit
- radiological work permit
Related terms
Controlled area
A designated zone where specific radiation protection rules apply to control exposure and the spread of contamination.
EPD
Electronic personal dosimeter: a worn device that shows dose and dose rate live and alarms at set points.
ALARA
As low as reasonably achievable: the principle of keeping doses as low as practical, not just below limits.
Dose extension
Approval for a worker to exceed the plant's administrative dose level, still below the legal limit.
RP tech
A radiation protection technician who surveys areas, covers jobs and enforces radiological controls.