We have used the OSL Inlight for several years. We perform quarterly and once during outage inspection of the pin and the plastic case near the pin for failure. The historical pin failures have decreased to just several a year. The cracked case near the pin has become more of a problem ( replace 10 to 15 per quarter)especially the security personnel who seem to damage them because of all the gear they wear that physically contacts the badge.
Mike Macho RP Supervisor, Dosimetry CPNPP 254-897-5698 [email protected]<mailto:[email protected]> From: [email protected] [mailto:[email protected]] On Behalf Of Egert, Glenn W. Sent: Wednesday, February 15, 2012 2:11 PM To: [email protected] Subject: Powernet: OSL dosimeters Columbia is inquiring: For plants that are using OSL dosimeters, specifically InLight Dosimeters, have you experienced a failure of the fastener (plastic thumbtack-like piece) by either breaking in two or falling out of place? We have had several occurrences of fastener breakage since we began using InLight Dosimeters in September 2011. The vendor has redesigned the fasteners and has used them with the January 2012 batch of dosimeters. However we have had four instances of fastener failure with this new batch of dosimeters. Just trying to determine if it is a continuing design flaw or an assembly problem. Your InLight insight is appreciated. Glenn W. Egert Radiological Support, Dosimetry Columbia Generating Station Energy Northwest (509) 377-4418 [email protected]<mailto:[email protected]> Confidentiality Notice: This email message, including any attachments, contains or may contain confidential information intended only for the addressee. If you are not an intended recipient of this message, be advised that any reading, dissemination, forwarding, printing, copying or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately by reply message and delete this email message and any attachments from your system.
