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FYI - if you need to support GTS, bring your TLD</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> becky@jlab.org <becky@jlab.org><br>
<b>Sent:</b> Wednesday, July 16, 2025 4:14 PM<br>
<b>To:</b> Theo McGuckin <tsm@jlab.org><br>
<b>Subject:</b> Updated Radiological Posting Conditions for Gun Test Stand (GTS) Area</font>
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<div>Theo McGuckin, <br>
<br>
<p>Good afternoon, </p>
<p> </p>
<p>Effective July 16, 2025, posting conditions for the Gun Test Stand (GTS) area have been updated. The entire GTS zone—including the upper control room, mezzanine, and lower-level mechanical room—is now designated as a **Radiologically Controlled Area (RCA)
– Dosimetry Required**. </p>
<p>These changes are in preparation for upcoming operations involving elevated voltage (~200 keV) and current (2 mA). </p>
<p> </p>
<p>Please ensure this information is communicated during Toolbox meetings and Pre-Job briefings.</p>
<p> </p>
<p>Entry into any RCA requires the following: </p>
<p>- RW1 (Radiation Worker I) training </p>
<p>- Personal dosimeter </p>
<p>- OR participation in a JLAB tour with a trained escort and a Self-Reading Pocket Dosimeter (SRPD) </p>
<p> </p>
<p>For any questions or further clarification, please contact RadCon at **757-876-1743**. </p>
<p> </p>
<p>Thank you, and please continue to work safely. </p>
<p>RCD</p>
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