PTW MP3 User manual

Brand: PTW

Model: MP3

Type: User manual

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

[email protected]

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

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

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

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.

2 4 1

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)

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

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)

9 8

1 3

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

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

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

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PTW MP3 User manual

Brand: PTW

Model: MP3

Type: User manual

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PTW MP3 User manual

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