Next: Restricted Access Procedure
Up: Hall C Access
Previous: Hall C Access
To make a controlled access when the hall is in the controlled access
state, first contact the MCC. The MCC will unlock the first gate at
the entrance to the hall. Once inside, the MCC will release the master
key. Remove the master key and insert it into the right-most slot of
the row of keys below it. Once the master key is in place, each person
wishing to gain access must remove a key from this row. The MCC will
then verify each person's name, which key he has, and check that each
person is wearing the proper dosimetry. This key-release procedure
allows the MCC to keep a ``count" of who has entered the hall. After
the procedure is complete, the MCC will unlock the second gate at the
entrance to the hall. Please note: only one of the entrance gates can
be open at a time while in the controlled access state.
When your work is completed and you are ready to exit, return to the
entrance gates and press the intercom call switch to notify the
MCC. Once you have entered and closed the first gate, each person must
replace his key in the appropriate slot, otherwise the Personnel
Safety System will not allow the master key to be released. When the
master key is released, place it in its slot, and the MCC will unlock
the final gate. When you have exited the final gate, make sure it has
closed and locked behind you. If circumstances dictate, request that
the MCC return the hall to the beam permit state and that beam be
restored.
It is important to note that if you enter the HMS shield house during
the controlled access, the run/safe box inside the shield house will
drop from the operational state to the safe state as soon as the door
to the shield house opens. Unless this box is rearmed by an MCC
operator, the beam cannot run. Further, before the door can be
opened, a protective cover moves into place over the HMS spectrometer
vacuum window. Therefore, it is necessary to call MCC and request
that they come to the hall and resecure the HMS shield house when you
are finished with your access. The operator will enter the shield
house, rearm the security system, close the shield house door, and
withdraw the protective shutter. Make certain that the operator
performs all of these steps before she/he leaves the hall.
Next: Restricted Access Procedure
Up: Hall C Access
Previous: Hall C Access
Hall-C Staff
2002-11-04