Convert Millirads per hour to Milligrays per second
Convert Millirads per hour (mrad/h) to Milligrays per second (mGy/s) instantly and accurately.
Conversion Formula
mGy/s = mrad/h × 2.777777778e-6
About Millirads per hour
The millirad per hour (mrad/h) equals 1e-5 Gy/h = 10 µGy/h. Legacy US radiation protection unit used by area monitors and Geiger counters calibrated before SI adoption; EPA environmental surveillance stations report in mrad/h alongside µGy/h; NRC licence boundary dose-rate surveys often cite mrad/h. 1 mrad/h = 1e-5 Gy/h = 10 µGy/h.
About Milligrays per second
The milligray per second (mGy/s) equals 1e-3 Gy/s. Used in high-dose-rate applications: medical linac output in IMRT mode is 1-5 mGy/s at isocentre; electron beam processing conveyors deliver 1-10 mGy/s; real-time diode dosimeters in linac vaults measure instantaneous dose rate in mGy/s during beam-on periods. 1 mGy/s = 0.1 rad/s = 3.6 Gy/h.
Quick Reference Table
| Millirads per hour (mrad/h) | Milligrays per second (mGy/s) |
|---|---|
| 1 mrad/h | 2.778 × 10-6 mGy/s |
| 2 mrad/h | 5.556 × 10-6 mGy/s |
| 5 mrad/h | 1.389 × 10-5 mGy/s |
| 10 mrad/h | 2.778 × 10-5 mGy/s |
| 25 mrad/h | 6.944 × 10-5 mGy/s |
| 50 mrad/h | 0.000138889 mGy/s |
| 100 mrad/h | 0.000277778 mGy/s |