The following information was received from the State of
Texas via email:
On February 23, 2010, at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br />, the [State of Texas] was notified by the licensee that the operating mechanism for the shutter shielding device on a Thermo Fisher model 5201 nuclear gauge had failed. The gauge is normally operated with the shielding for the source in the open position. The licensee stated that the current condition of the gauge poses no additional health risk to individuals. The gauge contains a Cesium (Cs)-137 source with an original activity of 100 milliCuries. The gauge is located 10 feet off of the ground and is accessed using a ladder to a platform. The area has been posted to prevent anyone from performing maintenance in the area. The licensee has contacted the manufacturer to repair the gauge. [State of Texas] will provide additional information as it is obtained.
TX Report I-8713