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<b>Important Change in Radiological Status of Hall B</b> - taking
place today<br>
<br>
Please note that the radiological posting level of Hall B will be
changing today, August 22, 2012. The hall is currently posted as a
Radiologically Controlled Area (RCA) and Radioactive Material Area
(RMA). Due to the RCA, the current requirement for unescorted entry
is Radiation Worker-I training and a dosimeter. By close of
business today, the status will be down-posted to remove the RCA
designation for the general area of the hall.<br>
<br>
The hall will remain posted as an RMA. The training requirement for
unescorted entry will change to GERT (General Employee Radiological
Training) (same as unescorted access to Jefferson Lab's accelerator
site). Personnel dosimetry will not be required in the general
areas of Hall B. Some isolated areas within the hall will remain
posted as RCAs, so please be watchful of postings as conditions are
subject to change. The beam tunnels leading into the hall and
downstream to the beam dump will also remain posted as RCAs.<br>
<br>
Several radiological requirements remain in place in the hall. As a
radioactive materials area, the hall may contain low-level
radioactive material, and may house radioactive material storage
cabinets and other containers. Any items stored in such a container
or tagged as radioactive material are not to be handled by
non-radiation workers. In addition, all materials that were present
in the hall during experimental operations must be cleared for
removal by qualified Radiation Control (RadCon) staff.<br>
<br>
To contact RadCon for clearance of material or for any questions
about this change, please call the RadCon duty phone, at
757-876-1743.<br>
<br>
This message is being sent on behalf of Jefferson Lab's Radiation
Control group.<br>
<br>
Regards,<br>
Deb Magaldi<br>
Jefferson Lab<br>
Public Affairs<br>
757-269-5102<br>
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