Users Manual Part 7

IBA | H-8 | Clinical User’s Guide
Volume 1 - Treatment Session
Glossary of Terms
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Fixed Reference System (FRS)
One of the coordinate systems supported by the Treatment Control System (TRCS).
See also: Treatment Control System, Coordinate System.
Flux Coil Electronic Unit (FCEU)
An electronic device that interfaces with a flux coil. See also: Electronic Unit.
First Scatterer Electronic Unit (FSEU)
Located on the rotating catwalk of the gantry. An electronic device that interfaces
with a first scatterer. See also: Nozzle, Electronic Unit.
Full-wave Rectifier
A circuit that uses both positive and negative alternations in an alternating current to
produce direct current.
Gantry
The rotating mechanical structure that supports the Gantry Beam Transport System,
Gantry Accessory Positioning System, and nozzle. The Treatment Control System
(TRCS) interfaces with the gantry motor drivers, via the PMS, to orient the gantry at
the appropriate angle. See also: Gantry Beam Transport System, Nozzle, Treatment
Control System.
Gantry Beam Transport System (GTS)
The subsystem of the Beam Transport System located between the rotary
feedthrough and the entrance of each nozzle The Gantry Beam Transport System
includes the optical beam transport elements that are supported by and move with
the gantry structure. See also: Beam Transport System, Gantry, Nozzle.
Gantry Coordinate System (GCS)
One of the coordinate systems supported by the Treatment Control System (TRCS).
See also: Treatment Control System, Coordinate System.
Gantry Correction File
A file that is defined to take into account the displacement of the proton beam as a
function of the gantry angle.
Gantry Rolling Floor (GRF)
A non-motorized rolling floor that covers the patient enclosure pit in a GTR.
Global Emergency Stop Button
Located in select areas within the facility. Switches off electrical power to most PTS
equipment. See also: Area Emergency Stop Button, Local Emergency Stop Button.