Remote target removal for the Oak Ridge 86-inch Cyclotron Page: 4 of 6
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r. TARGET
VACUUM ASSEMBLY
LOCK DOOR
UY RECEPTACLE
AIR AND 1TERCy
HOSE on/ClL COMCT
*I T TUBE
Fig. 2. Target DollyAll of these features are remotely control-
lable from outside the cyclotron cell. A similar
dolly has been used during past years, but the
design had to be refined to incorporate the
remote technology required. Costs for the new
target dolly in 1981 were about $55,000.
TARGET TRANSFER TABLE
The function of the target transfer table
(Fig. 3) is to remove the target assembly from
the target dolly and place it in the prepositioned
transfer cask. The transfer hand consists of a
protruding metal plate which. meshes against the
bottom of the target head when it is positioned
by the target dolly. The transfer hand can be
raised, and lowered, and moved horizontally to
position the target assembly in the cask - a very
simple design for remote operations. The chal-
lenge in the design for this operation was to
provide a remote disconnect which contained the
water coolant supply so the target assembly
could be removed from the target dolly. A 13-cm
(5-in.) diam quick-disconnect was design 3 and
built for this purpose.
TRANSFER CASK AND TABLE
The transfer cask (Fig. 4) is unique be-
cause of the weight limitations. The cask design
specifications included a minimum shielding of
10 cm (4 in.) of lead, a maximum weight of 900 kg
(one ton), and a remotely operated, vertical-lift
door. The cask door is operated with pneumatic
cylinders mounted on the cask table. After the
transfer hand positions the target assembly in-- T
Fig. 3. Target Transfer
Tablethe cask, the cask door is remotely closed using
pneumatic cylinders. The cask is then free to
be removed by the crane.
CRANE (MONORAIL)
The monorail crane was modified to provide
a remote control system. A ribbon-type flexible
control cable which floated with the monorail ii
used to power the controls. A guide system was
field fabricated to guide the cask into position
on the cask table.
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Walls, A.A. Remote target removal for the Oak Ridge 86-inch Cyclotron, article, January 1, 1982; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1056169/m1/4/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.