QC of Counting Equipment
Among the services OSI offers is the analysis of samples that may contain radioactive materials. These samples are most often:
- Sealed source leak test samples
- Contamination samples from workspaces
- Air samples
- Urine samples
- Soil samples
- Refractory samples
OSI is specifically licensed by the State of California to provide sealed source leak testing services. We are authorized to collect and analyze sealed source leak test samples under license number 5149-37.
OSI is also specifically licensed to provide “final decommissioning services” to other licensees. The service involves special on-site testing of facilities and the collection of samples from work surfaces, air ventilation equipment, wastewater lines, and soil if needed. Our staff is trained in the MARSSIM (Multi-Agency Radiation Survey and Site Investigation Manual) procedures.
The equipment we use to analyze samples must be reliable. We ensure the reliability of our counting equipment by using a published, well established Quality Control Testing Program.
OSI uses statistical techniques for obtaining satisfactory performance data from radioactivity-counting systems. Acceptable performance is maintained by routine tests of background and NIST traceable reference standards. Control charts are used to plot test data to determine satisfactory instrument response. A typical control chart that is posted in our counting room is shown below:
