Survey Meter Calibrations and Repair

Einstein laboratories have the option to purchase their own radiation survey meter or to rent one for a fee from the EH&S Department. Radiation survey meters are required to be calibrated once a year. Each meter will have a calibration sticker attached to indicate when it is due for calibration. If the meter has not been calibrated within the last year, the meter will need to be calibrated. 

Calibrating a Survey Meter:

To get your survey meter calibrated, complete a “Survey Meter Calibration Request” in iLab and submit it to EH&S. Once the request has been submitted, the laboratory must wipe test the meter and send the results to the Radiation Safety Officer prior to dropping off the meter in the EH&S office. While the laboratory’s survey meter is out for calibration, EH&S will lend out a calibrated meter for the laboratory to use in the meantime.

Renting a Survey Meter from EH&S:

For laboratories that don’t own their own survey meter, they may rent a meter from the EH&S Department for a monthly fee. EH&S carries both Geiger-Mueller meters (Geiger counters) and scintillation detectors with sodium-iodide probes (NaI). When renting a meter from EH&S, the laboratory will be charged on a monthly basis in iLab until the laboratory indicates that they no longer need the meter. When the rented meter is due for calibration the laboratory should notify Radiation Safety to inquire about replacing the meter with a newly calibrated option. Any meter that is returned to EH&S must be wipe tested for contamination by the laboratory with the results sent to the Radiation Safety Officer.

Meters in Need of Repair:

If a laboratory’s survey meter is damaged or inoperable and needs repair, EH&S can send the meter out to our vendor. While the meter is out for repair, EH&S can lend out a calibrated meter depending on availability. If a laboratory is dropping off a meter for repair, the laboratory must wipe test the meter and send the results to the Radiation Safety Officer prior to dropping off the meter in the EH&S office.

When Using a Radiation Survey Meter

  • Ensure that the meter has been calibrated within the last 12 months, 
  • Ensure that the batteries are working properly, 
  • Check that the meter is operational with a known source of material to ensure that it is responding to radiation,
  • Monitor the area very slowly at about one-half inch above the surface being monitored to avoid contaminating the detector.