Products
Health Physics Standards
Analytics provides custom-made calibration standards for alpha-/beta-particle measurements using proportional counters, GM counters and scintillation counters as well as standards for gamma/x-ray measurements using scintillation detectors and solid-state detectors. Analytics' standards provide the most accurate calibrations for wipe test determinations, airborne particulate and gaseous measurements, wide-area contamination measurements, internal dosimetry (whole-body counting), waste-drum measurements, decontamination/decommissioning and environmental measurements.
All custom-made alpha, beta or gamma-ray calibration standards must pass Analytics' documented quality-control testing:
Calibrations utilizing Analytics' standards have demonstrated traceability to NIST. Analytics participation in the NIST/ Nuclear Energy Institute (NIST/NEI) Measurements Assurance Program for the Nuclear Power Industry satisfies the requirements of the United States' Nuclear Regulatory Commission's Regulatory Guide 4.15, Revision 1, 1979, and ANSI N42.22-1995 American National Standard - Traceability of Radioactive Sources to the National Institute of Standards and Technology (NIST) and Associated Instrument Quality Control-Description.
Each standard is prepared gravimetrically with a calibrated balance. After preparation, each standard is counted with a calibrated counting system.
The counting efficiency is compared to the counting efficiency of at least one independent standard and agreement must be within Analytics' stated uncertainty. For quality-control testing of custom- geometry standards, Analytics maintains a current database including efficiencies from thousands of alpha, beta and gamma-ray standards.