The requirement for verification of dose delivery for a cesium-137 irradiator is annually. We currently do it quarterly and after repair, in addition to the annual verification the manufacturer does as part of our contract. Is anyone else doing that much?

We only do ours annually and after major repairs.

Annually only

We do it annually and after repairs. We also use RadSure for each batch.

We have the vendor perform a dose mapping annually. We also use a RadSure label on each product.

Dose mapping annually with RadSure on each product.

Dose mapping annually (done by Nordion) and a RadSure indicator on each product.