The dose calibrator must function over a range of 30uCi - 2Ci and be linear over a wide range of activity.
What is a dose calibrator?
- To make sure the administered dose is what was anticipated, dose calibrators are tools used in radiotherapy.
- Radioisotope calibrators are another name for dose calibrators.
- Typically, it comprises of two conducting electrodes separated by a gas filled cage (the anode and cathode).
- The movement of the ions and dissociated electrons to the electrodes with the opposite polarity results in an ionization current that can be measured when the gas between the electrodes is ionized by any method, such as by gamma rays or other radioactive emission.
- Each ion essentially adds or subtracts a tiny amount of electric charge from an electrode, accumulating a charge that is proportional to the number of similarly charged ions.
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