Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Nuclear
Radioactive Activity Calculator
Computes the radioactive activity of a sample in curies from its atom count and decay constant. Use this when characterizing radioisotope sources for medical physics, nuclear waste inventory, or laboratory safety.
Fill in the required fields to see your result.
Nuclear
Nuclear Radiation Shielding Calculator
Calculates the required shielding thickness to reduce gamma radiation from a radioactive source to a safe dose rate at a given working distance. Use it when designing barriers around radiation sources in medical, industrial, or nuclear facilities.
Fill in the required fields to see your result.
Key differences
| Radioactive Activity Calculator | Nuclear Radiation Shielding Calculator | |
|---|---|---|
| Category | Nuclear | Nuclear |
| Inputs required | 2 | 5 |
| Result | Activity (Ci) | Required Shield Thickness (cm) |
| What it does | Computes the radioactive activity of a sample in curies from its atom count and decay constant. Use this when characterizing radioisotope sources for medical physics, nuclear waste inventory, or laboratory safety. | Calculates the required shielding thickness to reduce gamma radiation from a radioactive source to a safe dose rate at a given working distance. Use it when designing barriers around radiation sources in medical, industrial, or nuclear facilities. |