Accessories for HDR1000+
Model 70008 - Quality Assurance Insert
The Quality Assurance Tool tightly collimates the radiation received by the HDR1000+ ion chamber to a narrow plane. Four short measurements are taken as the Iridium-192 source is advanced to the 4mm opening. These measurements provide the information for:
- Source positioning verification
- Timer accuracy
- Consistency of source activity
A constant, K, is determined with formulas outlined in the instructions. If all of the determinants of K remain within 1%, the user can be assured that the source position has remained constant to within 0.3mm, the source activity calibration has remained constant to within 0.01Ci, and the error in dwell time is less than 0.1 second.
Model 70007 - Wall Mounted Bracket
Periodic Quality Assurance for your High Dose Rate Remote Loading System.
Verification of Source Presence:
Check the relative output/activity of your source each day before patients are treated, and again at the end of the day.
Source Strength and Calibration Accuracy:
The rate of readings to calibration should be constant after decay of (73.83d = T(½)) regardless of wall scatter. This provides a verification of your source strength, thereby assuring the accuracy of your calibration.
Two or more readings with the same setting will indicate the consistency of the timing operation.