Radiography
Dose from rate and time
How much dose a given rate and time add up to, or how long you can stay before reaching a dose.
For reference only — verify against your procedure and the governing code.
µSv/h
hours
Result
- Dose
- 160µSv
Formula
- Dose = rate × time
- Time = dose ÷ rate
Units. Dose rate and dose in µSv/h and µSv (metric) or mrem/h and mrem (imperial); 1 mrem = 10 µSv exactly (10 CFR 20.1004).
Assumptions and limits
- A constant rate over the whole time. Your dosimetry and the licensee's limits govern.
- 1 rem = 10 mSv exactly (10 CFR 20.1004).
Sources
- 10 CFR Part 20 (eCFR, current): 20.1003 definition of high radiation area; 20.1004 units and quality factors; 20.1301(a)(2) dose in any unrestricted area.
More radiography calculators
For reference only — verify against your procedure and the governing code.
Standards and documents are cited by their publishers' names to identify them. TRACE is not affiliated with, endorsed by or sponsored by ASTM International, ASME, the U.S. Nuclear Regulatory Commission, NIST or the Laboratoire National Henri Becquerel. Formulas are paraphrased and cited by clause; get the documents themselves from their publishers.