Before injecting the patient with the radioactive material, we have to make sure that it is the right activity (too little and the image might be poor quality, too high and we are giving an additional radiation dose for no benefit.
The Calibrator is the device we use to check we have the right activity before injecting the patient.
"It never ceases to amaze me what can be achieved if a community is prepared to pool its fund raising proceeds. Projects which would otherwise not get off the ground because not get off the ground because of their cost can be undertaken"
John Carter Chairman of Trustees Bath Cancer Unit Support Group