Users Manual Part 2
IBA | 14-2 |
Clinical User’s Guide
Volume 1 - Treatment Session
|Part II
- Using Treatment Room Equipment Installing and Removing Accessories into/from the Accessory Drawer or PBS
Accessories can be inserted into the accessory drawer or into a snout that may be
mounted onto the accessory drawer. Table 14-1 details which accessories or
combination of accessories can be used.
Note: Note that there are two kinds of range shifters and ridge filters. The hardware
design of these accessories is different depending on whether they are meant to be
installed on the accessory drawer (rectangular surface) or on the snout (circular
surface).
For detailed information on the different accessories or the PBS dedicated snout,
refer to PTS System Description.
The accessory drawer is mounted onto the snout holder, which in itself is mounted
at the exit of the PBS Dedicated Nozzle (see Figure 14-1). The snout holder is able to
move the accessory drawer towards or away from the isocenter.
All required accessories, if any, must be installed when the therapist is ready to start
irradiation. When the irradiation has finished, the accessories must be removed to
enable treatment of a next patient.
Note: It is up to the Radiation Therapy Technologist (RTT) to identify and install the
proper block and range compensator. .
If the block and range compensator does not fit the snout, it may mean that the snout
is the wrong type. Blocks are keyed to a specific snout and range compensators
contain one or more orientation pins to prevent incorrect installation of patient
specific devices.
Table 14-1. PBS Accessories
PBS Dedicated Snout Range
Shifter
Ridge
Filter
Empty Block Range
Compen-
sator
Snout Range
Shifter
Ridge
Filter
Empty
Snout Holder + Drawer + Tray
(1 accessory)
Snout Holder + Drawer + Tray
+ Snout (max 2 types of
accessories)