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Radiology Converters

Radiation - Activity Converter

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... Disintegrations per minute = ... Curie

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... Disintegrations per minute

... Curie

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Disintegrations per minute to Curie Converter

Use this page to convert disintegrations per minute values into curie, with background details, formulas, a worked example, and a quick conversion table.

Conversion formula

1 dpm = 4.5045045045045e-13 Ci

1 Ci = 2,220,000,000,000 dpm

Example: 1000 dpm = 0.00000000045045045045045 Ci

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Disintegrations per minute

The number of decays occurring in sixty seconds.

History: Practical unit for counting equipment that uses minute-long integration times.

Current use: Used in health physics and laboratory contamination checks.

Also written as dpm.

Curie

One curie is approximately the activity of 1 gram of the radium isotope 226Ra, equal to 3.7E+10 becquerels.

History: Named after Pierre and Marie Curie. Originally defined in 1910.

Current use: Still commonly used in the United States and in some clinical settings alongside the becquerel.

Also written as Ci, curies.

Disintegrations per minute to Curie table

Disintegrations per minute [dpm]	Curie [Ci]
0.01 dpm	4.5045045045045e-15 Ci
0.1 dpm	4.5045045045045e-14 Ci
1 dpm	4.5045045045045e-13 Ci
2 dpm	9.00900900900901e-13 Ci
5 dpm	0.00000000000225225225225225 Ci
10 dpm	0.0000000000045045045045045 Ci
20 dpm	0.00000000000900900900900901 Ci
50 dpm	0.0000000000225225225225225 Ci
100 dpm	0.000000000045045045045045 Ci