Answer :
The specific activity of Cs-137 is the radioactive decay rate per unit mass or volume of a radioactive material. This radioactive decay rate can be measured in various units, including becquerels (Bq), curies (Ci), or disintegrations per second (dps). Cs-137 has a specific activity of approximately 3.2 x 1013 By/g or 8.6 x 105 Ci/g.
Cs-137 is a radioactive isotope of cesium that has a half-life of approximately 30.2 years. It is commonly used in medical applications, including brachytherapy and external beam radiotherapy, as well as in industrial radiography and gamma radiography.
In summary, the specific activity of Cs-137 is the radioactive decay rate per unit mass or volume of the isotope, and it has a specific activity of approximately 3.2 x 1013 Bq/g or 8.6 x 105 Ci/g. It is commonly used in medical and industrial applications but can also pose a risk to human health through exposure to gamma radiation from environmental sources.
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