Radioactivity
dpstonCi
Convert disintegrations per second (dps) to nanocuries (nCi).
Factor1 dps = 0.02702703 nCi
Converter
dps
Accepts numbers or expressions, e.g. 150 + 14.7
Result
nCi
Rendered to 6 significant figures.
Formula
Formula
nCi = dps × 0.02702703
Multiply any value in disintegrations per second by 0.02702703 to obtain the value in nanocuries.
Worked example
Convert 100 dps to nCi.
- 01Start with 100 dps.
- 02Multiply by the conversion factor: 100 × 0.02702703 = 2.7027 nCi.
Result100 dps = 2.7027 nCi
Conversion table
| dps | nCi |
|---|---|
| 1 | 0.027027 |
| 2 | 0.054054 |
| 5 | 0.13514 |
| 10 | 0.27027 |
| 20 | 0.54054 |
| 50 | 1.3514 |
| 100 | 2.7027 |
| 200 | 5.4054 |
| 500 | 13.514 |
| 1000 | 27.027 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from dps to nCi?
1 dps equals 0.02702703 nCi. To convert, multiply the value in disintegrations per second by 0.02702703.
How do I convert 1 dps to nCi?
1 dps = 0.027027 nCi. For any value, multiply by 0.02702703.
How do I convert nCi back to dps?
Divide by the same factor — or equivalently, multiply by 37. So 1 nCi = 37 dps.
When would I need to convert disintegration per second to nanocurie?
Radioactivity (activity) conversions between dps and nCi are routine in health physics, nuclear medicine ordering, environmental monitoring, radiopharmacy and reactor/accelerator-source documentation. The becquerel (Bq) is the SI unit; the curie (Ci) is the legacy unit (1 Ci ≡ 3.7×10¹⁰ Bq exactly). This category is strictly activity (decays per second) — it does NOT cover absorbed dose (Gy, rad), dose equivalent (Sv, rem), exposure or dose rate, all of which are different physical quantities and live in separate categories.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).