Illinois Emergency Management Website

Pat Quinn, Governor

IEMA Links Skip to Content Skip to State Links

Director Monken
Nuclear Safety
Disaster Preparedness, Response & Recovery
Training & Exercises
Laws & Regulations
Freedom of Information
Quick Nav:  

   Radiation Safety   

NRC Information Notice 2009-15: Varian Medical Systems Varisource High Dose-Rate Remote Afterloader Events: Source Retraction Problems

The NRC issued the attached Information Notice 2009-15 to licensees regarding recently reported events at three different locations where service engineers experienced problems with the VariSource HDR during source retractions. During all of the incidents, the source wire became stuck outside of the afterloader and required the Varian personnel to use the manual-retract handle to return the source to a safe-shielded position. All of the incidents occurred because of an accumulation of dust buildup in the source wire path. Analysis of the dust particles has shown that the dust is composed of the same material as the nickel titanium source wire. Varian implemented special maintenance procedures, including the routine cleaning of any components exhibiting dust buildup on a regular basis. Varian has released information regarding these events to its customers in Customer Technical Bulletin CTB-VS-640A.


Radiation Safety

General Information
Information for General Licensees
Information for Specific Licensees
Diagnostic Imaging Specialist
Directory of Industrial Radiographers
Directory of Radiologic Technologists
Industrial Radiographer Certification
Laser Registration
Medical Radiation Technologist Services
Radiation Machine Service Provider Form
Safety Culture Policy Statement
Technologist Accreditation
Therapeutic Radiological Physicist
X-Ray Registration
Image Gently Logo
Copyright © IEMA Site Map | Disclaimer | Illinois Privacy Info | Kids Privacy | Web Accessibility | Plug-Ins | Webmaster