Convert Rutherfords to Millicuries
Convert Rutherfords (Rd) to Millicuries (mCi) instantly and accurately.
Conversion Formula
mCi = Rd × 0.02702702703
About Rutherfords
The rutherford (Rd) equals exactly 10⁶ Bq = 1 MBq. Proposed by Ernest Rutherford and adopted at the 1946 Montreal Conference on Radioactivity as a convenient unit for large sources. Superseded by the MBq in SI but still encountered in older nuclear physics and reactor engineering literature. 1 Rd = 10⁶ Bq.
About Millicuries
The millicurie (mCi) equals 3.7 × 10⁷ Bq = 37 MBq. The primary clinical nuclear medicine unit in the US: ¹⁸F-FDG PET doses are 8-15 mCi; ⁹⁹mTc cardiac stress tests use 25-35 mCi; ¹³¹I hyperthyroidism therapy uses 5-30 mCi. US pharmacopeia and NRC regulations specify doses in mCi. 1 mCi = 3.7 × 10⁷ Bq.
Quick Reference Table
| Rutherfords (Rd) | Millicuries (mCi) |
|---|---|
| 1 Rd | 0.027027 mCi |
| 2 Rd | 0.0540541 mCi |
| 5 Rd | 0.135135 mCi |
| 10 Rd | 0.27027 mCi |
| 25 Rd | 0.675676 mCi |
| 50 Rd | 1.35135 mCi |
| 100 Rd | 2.7027 mCi |