Medical Purposes
· Reliable and effective cobalt radiotherapy
· Outstanding spatial accuracy of the intended dose delivery
· Implementation of the most modern radiotherapeutic trends
· Wide spectrum, long-term stability and reliability of all functions
· Substantial increase in the number of treated patients
Control and Service
· Comfortable control
· Simple maintenance
· On-line diagnostics of the unit’s operating conditions
· Easy calibration and dosimetry
Running Costs
· Minimal operating personnel requirements
· Negligible electricity consumption
· Minimal demands for the stability of electricity supply network
· Zero requirements for other operating media such as water or air
· Low service costs (your trained personnel will manage most tasks)
Aquisition Costs
· Low acquisition value
· Minimal requirements for building adjustments of the workplace
· Simple and fast installation
· Easy upgrade option from SCS model to ACS model
Type and Model
TERABALT type 100, model ACS
DRCU Terabalt Components
· Mechanical parts of irradiator (Stand with gantry, Irradiation head with source, Collimator)
· Treatment couch for placing patients
· Safety system of irradiator
· Controlling and measuring electronics
· System for the precise positioning of patients
· Audiovisual system for communication with patients
· Anti-collision system
· Verification system
· Planning system
· Standard accessories (Set of four wedge filters (15°, 30°, 45° and 60°), Set of eight standard blocks,
Head and elbow rests, Set of Plexiglass trays for holdingthe blocks)
· Optional accessories (System for the production of individual shielding blocks, Penumbra trimmers for
TERABALT type 100, Slot for blocks, Extra treatment coach top, Holder of X-Ray film cassettes, including
cassettes and films, Wide range of fixation complements)
Head with Source
The head is certified as a transport container. The head with source can be transported directly from
the producer, thus substantially minimizing potential radiation danger and the exposure of the operating
personnel that could occur while charging at workplace. The head weighs about 2000 kg and is made of
materials highly absorbing gamma radiation. A radiation source 60Co is firmly located in a stainless
protective case inside the head that is certified for operating with source of activity up to 400TBq (15000 Ci).
Nowadays, we supply a wide range of sources with diameters from 18 to 21 mm and activities from 300 to 400TBq
providing dose inputs over 2.5 Gy/min at the isocentre.
Treatment Coach
An isocentric table that can independently move along four axes (vertical, longitudinal and transversal
directions and isocentric rotation) is an essential part of the irradiator. All movements are digitally controlled.
The controlling software ensures an automatic positioning to any position. Operators can control the table either
from the radiotherapy control panel or by a remote control pendant. In case of emergency it is possible to interrupt
the irradiation immediately by pressing any of the emergency buttons located on the table or on the walls of irradiation room.
System for The Precise Localization of The Patient
Precise positioning of patients is an essential requirement of top of the range radiotherapeutic care. DRCU TERABALT is
supplied with a set of three lasers for precise positioning of the patient. The stability and accuracy of these lasers are
regularly verified by the operator and any potential deviations can be easily corrected. The irradiator is further equipped with
a precise optical distance meter used for control during SSD (Skin Source Distance) technique ofirradiation.
Planning System
The planning system is able to work both with cobalt irradiators and linear accelerators with a photon or an electron beam.
It is possible to import outputs of all diagnostic devices (supporting the output format of DICOM standard) as an input data. A
planning process consists of the following steps: selecting the patient and outlining the treated organs in various tomographic
slices, setting suggested irradiation fields and calculating the absorbed dose in required amounts. The calculation and projection
is always three dimensional. The planning system is connected to the irradiator by data transportin DICOM RT format into the verification
system. You can also attach your own planning system (supporting DICOM RTformat) to TERAGIS verification system. Your initial investment
put into the purchase will thus be fully utilised.
Dosimetry
An accurate dosimetry plays a key role in achieving the main target of radiotherapy – providing a maximal absorbed dose in the requested
volume. The irradiator is equipped with a separate irradiation mode for dosimetric purposes that allows to set all required parameters directly
from the radiotherapy control panel without having to enter the irradiation room. Additionally it is possible to arrange an automatic sequence
of irradiation procedures for dosimetric purposes and thus to substantially shorten dosimetric measurements necessary for clinical operation.
Stand with Gantry
Extremely rigid construction of the device guarantees a fluent start, movement and positioning of all
components. Assembled stand with its gantry is firmly connected to the bottom frame which is concreted into
the floor of the irradiation room. The bottom frame does not require any additional anchoring. The device
is designed to be assembled in common conditions of standard irradiation rooms. A transport route 120 cm
wide is sufficient for the transportation of the device in dismantled state. Mechanical adjustment of the
system is necessary only after the assembly of its head
Collimation System
An updated collimation system of irradiation beam is based on a brand new design. DRCU TERABALT is
equipped with a rectangular collimator working either in symmetric (SCS model) or asymmetric (ACS model)
modes. Both models are mechanically and electronically identical, they differ only in their controlling
software thus allowing user to seamlessly switch from an economical version(symmetriccollimator)to a fully
asymmetric collimation system without costly replacement of mechanical parts of the device. The ranges of
dimensions of the irradiation field are from 4 cm x 4 cm to 36 cm x 36 cm for type 80 and from 5 cm x 5 cm
to 40 cm x 40 cm for type 100.
Safety System
A DRCU TERABALT is equipped with a wide range of safety functions minimizing any potential danger to
patients and operating personnel. The basic safety component is an automatic securing of the return of the
source to the shielded position based on a unique spring mechanism. Secure power supply of safe 24V is another
important safety component. Moreover, the power supply is continually backed up, so an immediate supply failure
does not lead to unexpected situations and the irradiation of the patient can always be completed without any problems.
Control System
All movements are locally controlled by independent electronic modules – regulators. Accurate digital sensors ensure
the highest possible precision of positioning to specified position. This function together with the verification system
minimizes potential mistakes of the operator. The positioning of patients is ten times more accurate than the requirements
specified by international standards. Local independent control of each movement enables parallel operation of all mechanical
parts noticeably contributing to faster setting of parameters.
Anti-collision System
DRCU TERABALT collimator is equipped with HW anti-collision bars that automatically block any movement when pressed.
For higher safety demands during irradiation it is possible to also supply software-based anti-collision system that continuously
controls the mutual positions of all elements and starts an acoustic alarm in case any of the elements is breaching the safe
distance. Any movements following the alarm are allowed only from the remote pendant connected to the table in the irradiation
room since direct contact between operator and the patient is required in such cases
Verification System
TERAGIS verification system is afullyintegrated part of DRCU TERABALT. All valid parameters of irradiation plan are transferred
into it. The verification system contains a calendar scheduling an optimum operation of the device. The calendar works with patient’s
data and irradiation fractions that the specific patient is supposed to obtain. If parameters are set incorrectly, TERAGIS prevents
carrying out the irradiation procedure. The communication between DRCU TERABALT and TERAGIS verification system is bidirectional, the
verification system is informed about the condition of the device and the amount of completed irradiation time. The verification system
can be operated by multiple users. For example, one operator can enter information about new patients and their schedule of irradiation
procedures while the other operator controls irradiation process and another operator monitors the utilization of the device and prints
out summary reports. The exception is the control of the irradiation sequence as it can be carried out only from a workstation specified
for that purpose.
Standard Accessories
DRCU TERABALT is equipped with wide spectrum of accessories. Each accessory is marked with an individual code. After installation,
the operating system identifies the accessories according to their codes. If the identification code does not correspond to the code required,
it is not possible to irradiate the patient.
