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User Manual
MP3
Therapy Beam Analyzer
Contents
Operating Manual
Technical Manual
Service Manual
D175.131.00/11 en
2010-01 Hn/Sa
MP3
Therapy Beam Analyzer
General Information
2 D175.131.00/11 en
General Information
− The product bears the CE-mark "CE-0124" in
accordance with the Council Directive
93/42/EEC about Medical Devices and fulfills
the essential requirements of Annex I of this
directive.
The product is a class IIb device (MDD).
− Electrical safety
The product fully complies with the require-
ments of the standard IEC 61010-1.
− Electromagnetic immunity
The product fully complies with the require-
ments of the standards
IEC 60601-1-2
Directive for Low Voltage Equipment
73/23/EEC.
− The user manual is an integral part of the
product. It should always be kept near the
product. Observance of the manual is a pre-
requisite for proper product performance and
correct operation.
− Operator safety, specified measuring accuracy
and interference-free operation can be guaran-
teed only if original products and parts are
used. Furthermore only the accessories listed
in this manual are approved by PTW-Freiburg
and may be used in conjunction with the prod-
uct, or else accessories whose use has been
expressly permitted by PTW-Freiburg. Safe
operation and proper product performance are
not guaranteed if accessories or consumables
from other manufacturers are used.
− PTW-Freiburg cannot be held liable for dam-
ages resulting from the use of accessories,
consumables from other manufacturers or
when the user ignores the instructions and in-
formation given in this manual.
− The warranty period is 1 (one) year and begins
on the day of delivery.
It is unaffected by repairs covered by the war-
ranty regulations.
− PTW-Freiburg considers itself responsible for
safety, reliability and performance of the prod-
uct only, if assembly, extension, readjustment,
modification or repair is carried out by
PTW-Freiburg or by persons authorized by
PTW-Freiburg, and if the product is used in
compliance with the technical documentation.
− In case of any questions concerning service,
support or warranty please contact your sup-
plier.
− This manual is in conformity with the product
specifications and all applicable safety stan-
dards valid at printing date. All rights are re-
served for devices, circuits, techniques, soft-
ware and names referred to in the manual.
− No part of the technical documentation may be
reproduced without written permission from
PTW-Freiburg.
− PTW-Freiburg is registered manufacturer ac-
cording to the ElektroG (Elektro- und Elektro-
nikgeräte-Gesetz).
Elektro-Altgeräte-Register (EAR) Registration
number DE15599992
− PTW-Freiburg works in strict accordance with
a quality management system which is con-
tinuously updated according to national and in-
ternational standards.
PTW-FREIBURG
Physikalisch-Technische Werkstätten
Dr. Pychlau GmbH
Lörracher Str. 7
79115 FREIBURG
GERMANY
Phone: +49 761 49055-0
Fax: +49 761 49055-70
www.ptw.de
MP3
Therapy Beam Analyzer
Contents
D175.131.00/11 en 3
Contents
General Information 2
Contents 3
Illustrations 5
Intended Use 6
Safety Information 6
Operating Manual 11
1 The Components of the MP3 System 11
1.1 Perspex Tank 12
1.2 Moving Mechanism 13
1.3 Positioning Device 14
1.4 Lifting Carriage 15
1.5 Water Reservoir 16
1.6 TBA CONTROL UNIT and TBA CONTROL PENDANT 17
1.7 System Enhancement 17
2 Assembly of the System 18
2.1 Assembly of Positioning Device, Lifting Carriage and Perspex Tank 18
2.2 Assembly Junction Box and Moving Mechanism 19
3 Installation of the System for Measurement 22
3.1 Quickstart (Workflow) 22
3.2 Connection of the Water Reservoir 23
3.3 Filling with Water 25
3.4 Connecting TBA Control Unit and TBA Control Pendant 26
3.5 Connecting the MP3 System to a PC 27
3.6 Mounting Detectors to the Moving Mechanism 27
3.7 Connecting the Detectors 33
3.8 Mounting and Connecting the Reference Detector 33
3.9 Setup for TPR Measurements 35
3.10 Maneuvering the Lifting Carriage and the Water Reservoir 36
4 Installation Check
37
5 Error Messages and Troubleshooting 38
MP3
Therapy Beam Analyzer
Contents
4 D175.131.00/11 en
Technical Manual 41
6 Technical Specifications 41
6.1 MP3 Therapy Beam Analyzer (System) 41
6.2 Perspex Tank MP3 42
6.3 Moving Mechanism 42
6.4 Positioning Device, rotatable, T4316/U182 42
6.5 MP3 Lifting Carriages T43162 43
6.6 MP3 Water Reservoirs T43163-230A and T43163-115A 43
7 Order Information 44
Service Manual 45
8 Cleaning 45
8.1 Device Surfaces 45
8.2 Connection Cables 46
8.3 Connectors 46
8.4 Perspex Tank 46
8.5 Moving Mechanism 46
8.6 Cleaning Water Reservoir 46
9 Preventive Maintenance 47
9.1 Check before each use 47
9.2 Safety inspections 47
9.3 Technical Inspection of the Measuring System 47
10 Disposal of the Product 48
Literature 49
Appendix: China Electronic Industry Standard Compliance
50
Index 52
MP3
Therapy Beam Analyzer
Illustrations
D175.131.00/11 en 5
Illustrations
Figure 1: Definition of patient environment 10
Figure 2: MP3 system with accessories 11
Figure 3: MP3 Perspex tank with junction box (without moving mechanism) 12
Figure 4: Connections at the junction box 13
Figure 5: Positioning device for tank alignment 14
Figure 6: MP3 lifting carriage 15
Figure 7: MP3 water reservoir 16
Figure 8: MP3 Perspex tank and positioning device with detailed view 18
Figure 9: Mounting the A-axis 19
Figure 10: Mounting the B-axis 20
Figure 11: Mounting the C-axis 21
Figure 12: Coupling of the plastic hose of the water reservoir 23
Figure 13: Complete MP3 system 24
Figure 14: Mounting the chamber T31010, T31013, T31014 and the light probe T9311 28
Figure 15: Adjusting cube T4316/U241 29
Figure 16: Adjusting cube T4316/U541 29
Figure 17: Mounting the chamber T23343 with holder T4316/U151 30
Figure 18: Mounting the Electron chamber T34001 with holder T4316/U271 31
Figure 19: Mounting the Diamond detector T60003 with holder T4316/U251 32
Figure 20: Installing the liquid level switch 35
Figure 21: Roller with lock 36
MP3
Therapy Beam Analyzer
Intended Use
6 D175.131.00/11 en
Intended Use
The MP3 Therapy Beam Analyzer is a computer-
controlled measuring system for dose distribution
and radiation analysis in radiotherapy.
The standard system configuration should consist
of the following components:
− Perspex tank with moving mechanism
− Positioning device
− TBA CONTROL UNIT
− TBA CONTROL PENDANT handheld terminal
− Dual-channel electrometer TANDEM
− Semiflex ion chamber, 0.125 cm³ and reference
chamber
− MEPHYSTO software
− Lifting carriage and water reservoir
The standard system configuration should be com-
pleted with a PC.
The system can be expanded with additional ac-
cessories (see section
1.7).
The system is designed for use as a measuring
device only. Do not use the system to control X-ray
systems or radiotherapy systems.
The system components must not come in contact
with the patient.
NOTE
Please observe the information given in the user
manuals supplied with the dual-channel elec-
trometer TANDEM, the TBA CONTROL UNIT,
the TBA CONTROL PENDANT, the MEPHYSTO
software, the PC and the ionization chambers.
Safety Information
This is the safety alert symbol. It is used to
alert the user to potential hazards. Obey all
safety messages that follow this symbol to
avoid possible bodily injury or equipment
damage.
All safety messages consist of the following com-
ponents:
– Safety alert symbol and signal word
– Type of danger
– Source of danger
– Consequence
– Measures to prevent hazard
Signal Words
DANGER
Indicates an imminent hazard. If not avoided, the
hazard will result in death or serious injury.
WARNING
Indicates a hazard. If not avoided, the hazard
can result in death or serious injury.
CAUTION
Indicates a potential hazard. If not avoided, the
hazard could result in minor injury or product /
property damage.
NOTE
Provides useful information to assure that you
get the most from your equipment.
MP3
Therapy Beam Analyzer
Safety Information
D175.131.00/11 en 7
Safety Information
DANGER
Operation in areas where an explosion hazard
may occur or in oxygen-enriched atmospheres
Explosion Hazard!
The product is not suitable for operation in areas
of risk where an explosion hazard may occur.
Explosion hazards may be caused by the use of
combustible anaesthetics, skin-cleansing agents
and disinfectants.
Furthermore the product is not suitable for appli-
cation in oxygen-enriched atmospheres. The
atmosphere is considered to be oxygen-enriched
when more than 25 % of oxygen or nitrous oxide
is added to the ambient air.
WARNING
Electricity is a source of risk, particularly when
the product is not in perfect operating condition
or when it is operated inappropriately.
Shock Hazard!
Strictly observe the following warnings. Failure to
do so may endanger the lives of the patient, the
user and other persons involved.
− Before using the product, the user must as-
certain that it is in correct working order and
operating condition.
− Before putting the device into operation, visu-
ally inspect all connection cables for signs of
damage. Damaged cables and connectors
must be replaced immediately.
− When disconnecting the device from the
power line, first remove the plug from the wall
outlet, then disconnect the power cord from
the device.
WARNING
− Devices on which moisture condensation has
developed as a result of temperature changes
must not be switched on unless completely
dry.
− Liquids must not enter the product. If liquids
have entered the product, it must be thor-
oughly inspected before being used again.
− The devices are protection class I equipment.
They must be put into operation only when
connected to a properly installed power out-
lets with earthing contact
− Do not use extension cords and multiple port-
able socket outlets (MPSO) to connect the
device to the power line.
− All devices of a system must be connected to
the same electric circuit. Devices which are
not connected to the same circuit must be
electrically isolated (use RS232 interface with
galvanic insulation).
Exclusion of operation in the patient envi-
ronment: Neither the product nor any peripheral
devices may be operated in the patient environ-
ment (refer to
Figure 1).
Exclusion of operation as device with patient
contact: The device is not intended for use in
direct contact with the patient. Neither the device
nor any peripheral device may have contact to
the patient.
Never touch the patient and open connectors of
the device at the same time.
Exclusion of operation as controlling instru-
ment: The device is only designed for use as a
measuring device. The device must not be used
to control radiodiagnostic equipment or radio-
therapy units.
MP3
Therapy Beam Analyzer
Safety Information
8 D175.131.00/11 en
WARNING
Use of peripheral devices: Peripheral devices
(PC, printer) may only be connected if they meet
the requirements of UL 1950/IEC 60950-1.
Devices may be connected to other devices or to
parts of systems only if it has been ascertained
that this connection does not impair the safety of
the patient, the operator or the environment.
If the device specifications do not contain infor-
mation as to connecting the device to other
equipment, you must consult the manufacturer of
the other equipment or an expert about the ef-
fects of the connection on the patient, the opera-
tor or the environment.
WARNING
Magnetic and electrical fields are capable of in-
terfering with the proper performance of the de-
vice.
Equipment Failure!
For this reason make sure that all external de-
vices operated in the vicinity of the device com-
ply with the relevant EMC requirements. X-ray
equipment, MRI devices and radio systems are
possible sources of interference as they may
emit higher levels of electromagnetic radiation.
Keep the device away from these devices and
verify its performance before use.
WARNING
Packaging material is a source of risk.
Suffocation Hazard!
Dispose of the packaging material, observing the
applicable waste-control regulations. Keep the
packaging material out of children's reach.
WARNING
Improper handling.
Patient Hazard!
The product is a medical electrical device and
must only be handled by persons who are trained
in the use of such equipment and are capable of
applying it properly. The operator must be trained
in the use of the device.
WARNING
Confusion of chemicals.
Risk of Poisoning!
Chemicals required for application or mainte-
nance of the device, for instance, must under all
circumstances be stored, prepared, and kept at
hand in their specific containers. Failure to ob-
serve this instruction may result in severe conse-
quences.
WARNING
Hazards originating from other system compo-
nents.
Patient Hazard! Equipment Damage!
Observe the safety information provided in the
user manuals of the system components.
MP3
Therapy Beam Analyzer
Safety Information
D175.131.00/11 en 9
CAUTION
Use of the product without observing the user
manual.
Bodily Injury! Equipment Damage!
Always use the product in compliance with the
user manual. Otherwise the intended protection
can be reduced.
CAUTION
Operation under inadequate ambient conditions.
Equipment Damage!
Before connecting the device to the power line,
make sure that line voltage and frequency are
equivalent to the ratings indicated on the name-
plate of the device.
Set up the device in a location which affords
sufficient ventilation. The air gaps of the device
must not be obstructed.
Always observe the ambient conditions as indi-
cated in the `Technical Specifications`.
NOTE
Please observe the user manuals of all con-
nected devices!
NOTE
Set up the device so that the operator has a
clear, unobstructed view of the control panel.
NOTE
Do not position the device so that it is difficult to
operate the disconnecting device.
NOTE
This symbol means:
Refer to user manual.
This symbol means:
Separate collection for electrical and
electronic equipment!
(refer also to section Disposal of the
Product)
This symbol means:
The product bears the CE-mark.
This symbol means:
Labeling according to „Administra-
tion on the Control of the Pollution
caused by Electronic Information
Products (ACPEIP)“ (China RoHS)
(refer also to Appendix)
MP3
Therapy Beam Analyzer
Safety Information
10 D175.131.00/11 en
Figure 1: Definition of patient environment
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
D175.131.00/11 en 11
Operating Manual
1 The Components of the MP3 System
Moving
Mechanism
MP3 Perspex Tank
MP3 Positioning Device
Manual
Levelling
and
Adjustment
Control Pendant
Water-
hose
TPR-
Probe
Control Unit
MP3 Lifting Carriage
Reference
Detector
Dual Channel
Electrometer
Measuring
Detector
Trigger
Signal
from
Accelerator
Computer
Printer
Meas.
Signals
TPR-
Signal
Junction
Box
Control Signal
Measuring- and
Control Signals
RS232
Control
Signals
MP3 Water Reservoir
Figure 2: MP3 system with accessories
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
12 D175.131.00/11 en
1.1 Perspex Tank
The moving mechanism as well as several ancillary
devices (refer to section
2) are attached to the Per-
spex tank. The tank (
Figure 3) is filled with water.
The water level should remain approx. 20 mm be-
low the top edge of the tank. Horizontal and vertical
lines on the tank allow the tank to be easily leveled
and to mark the moving range of the ionization
chamber. As an alternative, you can use the boxed-
air level that comes as part of the MP3 accessories.
Additional marks at the bottom and on the walls of
the tank allow it to be aligned, using the light field
indicator and laser system of the accelerator.
The Perspex plates are glued together. On the in-
side of the tank, a special sealing agent protects the
glue from penetrating water.
Figure 3: MP3 Perspex tank with junction box (without moving mechanism)
1 Perspex tank
2 Supporting profile
3 Angle
4 Junction box
5 Nipple
3 2 1
5
4
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
D175.131.00/11 en 13
Figure 4: Connections at the junction box
1 Motor cable A
2 Motor cable B
3 Motor cable C
4 Motor cable to the control unit
5 TBA CONTROL PENDANT
6 Control cable to the control unit
7 Water reservoir (only for TPR option)
8 TPR liquid level switch
1.2 Moving Mechanism
The moving mechanism is made of stainless steel
and is permanently installed on the tank. It consists
of three arms with the following designations:
A = horizontal arm, fixed,
B = moving vertical arm and
C = moving horizontal arm.
The moving mechanism is suitable for both horizon-
tal and vertical radiation. Holding devices for detec-
tors to move in the field are screwed to the slider of
the C-arm. The slider and the arms are moved by
stepper motors that permit a minimum step width of
0.1 mm. The reproducibility of the geometric posi-
tioning is also ± 0.1 mm.
The moving range limits can be adjusted for each
axis and stored in the TBA CONTROL UNIT to en-
sure that the detector does not hit the Perspex
walls.
The components of the moving mechanism, particu-
larly the guides and moving parts, are not adversely
affected by water. Bending or contortion due to
water absorption or corrosion is thus excluded.
CAUTION
Improper handling.
Risk of injury!
Do not reach into the Perspex tank while the
moving mechanism is working.
Pay attention that hairs or cloths of the user and
other persons involved do not touch the rotating
spindle.
3
6
2 4 1
5
8
7
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
14 D175.131.00/11 en
1.3 Positioning Device
The positioning device allows the Perspex tank to
be aligned, using the light beam diaphragm, the
laser system and the lines on the walls of the tank.
The positioning device has three adjustable legs
with hand wheels that allow the height to be ad-
justed by ± 10 mm. Additionally, the three adjusting
screws allow the tank to be adjusted horizontally by
± 10 mm, or by approx. 1° on a vertical axis (micro-
adjustment). A mechanism allows the tank to be
rotated by 45°or 90° (refer to
Figure 5 for center of
rotation).
Horizontal alignment of the tank is easy when it is
filled to the horizontal lines and the water surface is
used as a level.
The tank is screwed on to the positioning device
(see section
2.1).
Figure 5: Positioning device for tank alignment
1 Transportation lock
2 Center of rotation
3 Plate
4 Locking device
5 Adjusting screw (3x)
6 Washer 6.4 DIN 9021 (4x)
7 Screw M6x16 DIN 912 (4x)
8 Adjustable leg (3x)
8
7
6
5
4 2 3 1
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
D175.131.00/11 en 15
1.4 Lifting Carriage
The positioning device plus Perspex tank can be
placed on the lifting carriage (
Figure 6). An electro-
mechanical scissors-type lifting carriage allows the
height to be easily adjusted by means of the two
pushbuttons on its front panel. The platform is lifted
exactly parallel. The lifting carriage has no hydraulic
parts. Therefore, the adjusted height is maintained
indefinitely.
As an alternative to the motor-driven lifting carriage,
a carriage with a fixed height can be used.
Figure 6: MP3 lifting carriage
1 Bearing plate
2 Control buttons
a Control button "Lowering"
b Control button "Lifting"
3 Push rod
4 Fixed castor (2x)
5 Castor with total locking device (2x)
6 Mains connection and fuse
a Connection for power cable
b Fuse
4
3 2 1
6 5
2a 2b
6b 6a
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
16 D175.131.00/11 en
1.5 Water Reservoir
The water reservoir consists of a water tank and a
pump. The pump is made of stainless steel. Sole-
noid valves allow the pumping direction to be re-
versed to fill and empty the Perspex tank, as re-
quired. When the MP3 system is not in use, the
Perspex tank must be drained and the water
pumped into the water reservoir (see section
3.3.2).
The plastic hose between water reservoir and Per-
spex tank can be removed even if the tank is filled
with water.
CAUTION
Improper handling.
Equipment damage!
If you are pumping water, you must not remove
the plastic hose between water reservoir and
Perspex tank.
The electric pump can be controlled from a PC
when the water reservoir is connected to the MP3
junction box (see section
3.2 and 3.9).
Figure 7: MP3 water reservoir
1 Water reservoir
2 Control button (3x)
3 TPR connection
4 Fuse
5 Connection for power cable
6 Push rod
7 Water hose to Perspex tank
8 Fixed castor (2x)
9 Castor with total locking device (2x)
5
2
9 8
4
1 3
6
7
MP3
Therapy Beam Analyzer
Operating Manual – The Components of the MP3 System
D175.131.00/11 en 17
1.6 TBA CONTROL UNIT and
TBA CONTROL PENDANT
The MP3 system is operated via a TBA CONTROL
UNIT and a TBA CONTROL PENDANT.
The TBA CONTROL UNIT is an interface that con-
nects the MP3 water phantom to the PC. It supplies
the power for the stepper motors and controls the
detector movement.
The TBA CONTROL PENDANT can be connected
either to the TBA CONTROL UNIT or to the junction
box (at the Perspex tank). The TBA CONTROL
PENDANT indicates the detector coordinates A, B
and C and allows the detector to be moved at two
different speeds (10 mm/s and 50 mm/s). Addition-
ally, the limits for the detector movement, the null
point in the central beam and the reference points
can be determined via the TBA CONTROL
PENDANT. Please note that some of the TBA
CONTROL PENDANT functions are available only
when it is directly connected to the junction box at
the Perspex tank (refer to the user manual of the
TBA CONTROL PENDANT). Therefore it is rec-
ommended to connect the TBA CONTROL
PENDANT to the junction box.
For further information on the TBA CONTROL UNIT
and on the TBA CONTROL PENDANT refer to the
corresponding user manuals.
1.7 System Enhancement
The following equipment can be added to the MP3
system. The corresponding measuring programs
are already implemented in the MEPHYSTO soft-
ware.
1.7.1 TPR Option
The TPR option permits automatic measurement of
the tissue-phantom ratios. While the source-
detector distance is fixed, the water level changes.
For this measurement, the water reservoir is con-
nected to the junction box at the Perspex tank and
a liquid level switch with holder and connection
cable is installed. The corresponding measuring
program is already implemented in the MEPHYSTO
software.
1.7.2 Linear Array LA48
The Linear Array LA48 is used for the measurement
of profiles, predominantly profiles of dynamic fields.
The LA48 has 47 ion chambers. The measurement
is performed in the water-filled MP3 Perspex tank.
For the measurement, you also need a multi-
channel therapy dosemeter MULTIDOS with ME48.
MP3
Therapy Beam Analyzer
Operating Manual – Assembly of the System
18 D175.131.00/11 en
2 Assembly of the System
2.1 Assembly of Positioning
Device, Lifting Carriage and
Perspex Tank
NOTE
You can use the supplied tools to assemble the
Perspex tank.
Use only the supplied stainless steel screws to
attach the different components (e.g., the arms of
the moving mechanism).
All components must be of the same connection
system (e.g. BNT).
• Place the positioning device on the lifting car-
riage or on a suitable support (e.g. table, car-
riage).
• Align the positioning device on the lifting car-
riage.
• Now remove the safety mechanism.
• Place the Perspex tank on the positioning de-
vice. Check that the angle for A-axis is located
at the long side of the positioning device with
two feet.
• Secure the Perspex tank on the positioning de-
vice, using the four M6x16 screws and the four
6.4 washers.
Figure 8: MP3 Perspex tank and positioning device with detailed view
1 Perspex tank
2 Washer 6.4 DIN 9021 (4x)
3 Screw M6x16 DIN 912 (4x)
4 Positioning device
5 Lifting carriage
4
2
5
1
3
MP3
Therapy Beam Analyzer
Operating Manual – Assembly of the System
D175.131.00/11 en 19
2.2 Assembly Junction Box and
Moving Mechanism
• Mount the junction box (T41013.1.100) to the
Perspex tank as shown in
Figure 3, using M4x40
screws and washers.
• Place the A-axis on the supports to the right and
left of the angle pieces on the Perspex container
and secure the axis with a swivel washer and an
M6x16 screw at each end, as shown in
Figure 9.
Figure 9: Mounting the A-axis
1 Screw M6x16 DIN 912 (2x)
2 Washer (2x)
3 Support (2x)
4 Angle
5 A-axis
6 Perspex tank
1
6
2
4
3
5
MP3
Therapy Beam Analyzer
Operating Manual – Assembly of the System
20 D175.131.00/11 en
• Hook the B-axis onto the conical bolt of the A-
slide, at the same time guiding the supporting
rolls over the support profile at the bottom of the
Perspex tank, as shown in
Figure 10.
• Mount the B-axis to the A-slider, using two
M5x16 screws. Do not yet tighten the screws.
• Align the B-axis vertically. To do so, use one
edge of guide rail of the B axis and the vertical
crosshair line of the Perspex tank. Now tighten
the two M5x16 screws.
• Remove the M3x12 screws to loosen the cable
holder at the top and back of the A-slider. Se-
cure the two motor cables B/C with the cable
holders and tighten the two M3x12 screws
(
Figure 10).
Figure 10: Mounting the B-axis
1 Gear box B
2 Screw M5x16 DIN 912 (2x)
3 Conical bolt
4 Slider B
5 B-axis
6 Supporting profile
7 Supporting rolls
8 Screw M3x12 DIN 912 (2x)
9 Cable holder
10 Motor cable B/C
11 Slider A
12 A-axis
13 Crosshairs
1
13
4
10
7
2
5
6
3
12
9
8
11
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