Brainlab Novalis 600N User manual

Copyright 2007, Brainlab AG Germany. All rights reserved.
Reference Guide
Revision 1.0
600N / Novalis Dose Delivery System
(Linear Accelerator)
Version 1.0

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 3
1General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Symbols Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.1 Symbols on the System Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 How this Manual is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Typical Room Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3Major System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Operator Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Console Electronics Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Modulator System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 Drive Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5 Gantry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.6 Treatment Couch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4Emergencies and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3 About the Emergency Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.4 Hospital Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5 Treatment Beam Fails to Terminate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6 Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.7 Fire, Smoke or Gas Fumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.8 Emergency-off Circuits Fail to Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.9 Emergency Pendant Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.10 About the Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.11 Radiation Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.12 Radio-frequency Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.13 Electromagnetic Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.14 Sulfur Hexafluoride Escape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.15 Sulfur Hexafluoride Decomposition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.16 Implosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.17 Electrical Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.18 Collision with Gantry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.19 Falling Parts or Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.20 Deterioration of Plastic Parts from Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.21 Patient Fall from the Treatment Couch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.22 Moving Parts on the Treatment Couch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.23 High-temperature Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table of Contents

4 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
4.24 Electrical Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.25 Laser Beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.26 Software Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.27 Operations Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.28 Radiation Protection Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.29 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.30 Safety and Emergency Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.31 Routine Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.32 Quality Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.33 Accidental Radiation Overdose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.34 Hospital Emergency Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.35 Microwave Tube Operating Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.1 Console Dedicated Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.2 Console Video Monitor and Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.3 Console Electronics Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.4 Modulator System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.5 Gantry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.6 Drive Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.7 Hand Pendant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.8 Pendant Paddle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.9 Pendant Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.10 Treatment Couch Control Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6System Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
6.1 About Viewing Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
6.2 Morning Checkout Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6.3 Dynamic Treatment Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.4 About Viewing Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.5 Event Log - Machine Parameters Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.6 Event Log - Interlock Status Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6.7 Event Log - Meters Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6.8 Event Log - Digital Input/Output Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.9 Event Log - Accessory Data Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6.10 Event Log - Error Summary Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.11 Event Log - Dynamic Beam Summary Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.12 Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
7Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 5
General Information
1 General Information
Overview This guide provides an introduction and reference for the effective and correct use of the
NovalisDoseDeliverySystem . This guide is written for all members of the clinical team
who use or handle the
Novalis Dose Delivery System or parts of it. You should read this
guide carefully and acquaint yourself sufficiently with the system before use.
Support If you cannot find the information you need in this guide, please contact Brainlab support:
Copyright This guide contains proprietary information protected by copyright. No part of this guide
may be reproduced or translated without the express written permission of Brainlab.
Feedback Despite careful review, errors may appear. We look forward to your comments and
suggestions, and can be contacted at [email protected], or at the support phone
numbers listed above.
Trademarks • Novalis
®is a registered trademark of Brainlab AG.
•Microsoft
®and Windows®are registered trademarks of Microsoft Corporation.
Manufacturer Varian Medical Systems Inc. - 3100 Hansen Way, Bldg 4A, Palo Alto, CA 94304, USA.
Distributor
Language
Information
All Brainlab user guides are originally drafted in English. The corresponding reference
number for this manual is 60911-37EN.
United States and Canada Tel: [phone]
Fax: [phone]
Africa, Asia, Australia, Europe Tel: [phone]
Fax:[phone]
France & French-speaking regions Tel: [phone]
support[email protected]
Latin America Tel: [phone]
Fax:[phone]
Japan Tel: [phone]
Fax:[phone]
@
Internet , worldwide [e-mail]
www.brainlab.com
Brainlab AG - Olof-Palme-Str. 9 - 81829 Munich - Germany

6 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Symbols Used in this Manual
1.1 Symbols Used in this Manual
1.1.1 Symbols on the System Hardware Components
Hardware Symbols The following symbols may be found on the system or on accessory devices:
1.1.2 Safety Information
Warning Symbol
Warnings are indicated by a triangular warning symbol. They always contain
safety-critical information regarding possible injury, death or other serious
consequences associated with misuse of the device.
Caution Symbol
Cautions are indicated by a circular caution symbol. They always contain
safety-critical information regarding circumstances that could result in device
malfunction, device failure, damage to the device or damage to property.
Symbol Explanation

Class I Type B equipment according to IEC 60601-1
Equipment manufacturer
Attention: Consult accompanying documents
Electrical and electronic equipment should only be disposed of in accordance
with statutory regulations.
For information regarding the WEEE (Waste Electrical and Electronic
Equipment) directive, visit: www.brainlab.com/weee

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 7
Introduction
2 Introduction
Overview This reference guide describes the various major machine parts and the components for the
Novalis Dose Delivery System .
Operators The Novalis Dose Delivery System can be very dangerous. Only trained personnel under
the supervision of a licensed physician should be authorized by the hospital or owner to
operate it. As part of the training, each operator should be required to study this entire
manual and the Clinical User Guide for the
Novalis Dose Delivery System to learn the
emergency and safety procedures associated with the
Novalis Dose Delivery System , the
location and function of controls and indicators, and the correct operating procedures.
Maintenance and
Service Personnel
Operators should never perform maintenance of the Novalis Dose Delivery System .
Performing maintenance procedures is restricted to service personnel who receive the
appropriate maintenance training and are authorized by the hospital.
Who should read
this Book
This manual is for hospital and service personnel. It provides the proper emergency
procedures, safety precautions, and other reference information necessary to set up,
configure, and operate the
Novalis Dose Delivery System .
2.1 How this Manual is organized
You can read the reference manual from start to finish or use the Table of Contents and
Index to look up specific information.
Chapter Describes ...
2How to use this manual
3Major components of the
Novalis Dose Delivery System
4Emergency and safety procedures
5Controls and indicators
6Morning checkout and event logs
6Interlocks

8 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Typical Room Components
2.2 Typical Room Components
Figure 1 shows the major components of the Novalis Dose Delivery System .
Figure 1: Typical Room Components

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 9
Major System Components
3 Major System Components
Overview This chapter describes the operating controls and indicators on the Novalis Dose Delivery
System
.
In this Chapter
3.1 Operator Console
Overview You control the Novalis Dose Delivery System through an operator console (Figure 2) that
consists of the following:
• A high-resolution color video monitor
• A dedicated keyboard
• A printer
• A standard alphanumeric computer keyboard for service personnel
Video Monitor The video monitor continuously displays information about the Novalis Dose Delivery
System
operation, including dose, time, and other parameters during treatments. Messages
and selection windows assist the operator in completing the daily checkout of the machine and
performing patient therapy.
Dedicated
Keyboard
You input data and execute commands primarily by means of the keys on the dedicated
keyboard. The keyboard includes the following:
• Control keys for selecting and entering information requested by screen displays
• Motion keys
• Beam control buttons
Topic Page
Operator console page 9
Console electronics cabinet page 10
Modulator cabinet page 12
Drive stand page 13
Gantry page 14
Treatment couch page 15

10 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Console Electronics Cabinet
Printer The printer allows you to print copies of the morning checkout log and other service-related
information.
Figure 2: Operator Console and Console Electronics Cabinet
3.2 Console Electronics Cabinet
Overview The console electronics cabinet contains the following:
• The console computer
• The control computer
• Signal conditioning electronics
• Mechanical backup counter
• On/off switch for the console computer
• Power supplies
n1.1 Beta 8 F10 About
Quantity : 0
GoodDisks : 0
BadDisks : 0
Status
ElapsedTime : 0:00
Checksum :
Retries
CurrentTrackK 0/0
TotalTracks 0/0
JobName
FormatInformation
ImageFile
Batch
RamDisk
RamDisk
A:51/4 1.2Mb
B:31/2 1.4Mb
2XSDSSWITCH

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 11
Major System Components
These units provide primary control of the Novalis Dose Delivery System in each of the
three operating modes: morning checkout, clinical and service.
Figure 3: Console Electronics Cabinet

12 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Modulator System
3.3 Modulator System
Overview The modulator cabinet (Figure 4) contains the following:
• A high-voltage power supply system
• Primary power controls
• Initial startup controls
• The modulator system
• Other important circuits
Modulator System The modulator system supplies high-energy power pulses to the microwave power tube.
Modulator components include the following:
• A pulse-forming network
• Thyratron tube
• DeQing circuit
Figure 4: Modulator Controls
Layer 100000000

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 13
Major System Components
3.4 Drive Stand
Overview The drive stand (Figure 5) supports the gantry by means of a precision bearing to furnish
accurate isocentric gantry rotation. It contains the drive system for gantry rotation.
Microwave Power
Tube
A high-power microwave power tube in the drive stand delivers microwave energy to the
linear accelerator structure in the gantry through a waveguide distribution system.
Other Drive Stand
Components
Other components in the drive stand include the following:
• A water distribution system for cooling certain components within the drive stand and
gantry
• A gas pressurizing system for the waveguide
• Additional power supplies
Figure 5: Left Side of Stand

14 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Gantry
3.5 Gantry
Overview The upper part of the gantry (Figure 6) contains the following:
• The linear accelerator structure and gun
• Dosimetry and beam steering systems
• Associated components
Accelerator The accelerator consists of a electron gun that injects a stream of electrons into a standing-
wave accelerator.
Automatic
Frequency Control
System
An automatic frequency control system senses the operating frequency of the accelerator
structure and varies the operating frequency of the radio-frequency driver and microwave
power tube to maximize radiation output.
Figure 6: Gantry
How the Beam
passes through the
Gantry
Secondary
Collimator
The secondary collimator provides variable collimation. The collimator contains two pairs
of collimators that move through arcs approximately perpendicular to the beam.The field
light indicates the size and shape of the field size incident on the patient.
Phase What Happens
1. The accelerator generates the electron beam.
2. The beam impacts a copper/tungsten target to create X-rays for x-ray exposures.
3. The beam continues into the primary collimator.
Note: The primary collimator limits the maximum field size for x-ray therapy
4. The beam passes through a flattening filter.
5. The beam passes through a sealed ion chamber that contains two independent sensor
plates (radial and transverse) for measuring integrated dose.
Note: Each dose-measuring channel is capable of terminating the exposure when the
desired integrated dose is delivered and can discriminate between positional and
angular beam shifts. Each channel is interrogated by the control system for circuit
integrity before every treatment.

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 15
Major System Components
Gantry Rotation The gantry rotates clockwise or counterclockwise about a horizontal axis to position the
beam. For arc therapy, the gantry rotates within limits set by the operator. The angle of the
gantry is displayed continuously on the following:
• A digital display mounted in the throat of the gantry (Figure 7)
• A mechanical scale that surrounds the digital display
• The screen of the console monitor
Figure 7: Position Readout on Gantry
3.6 Treatment Couch
Overview The treatment couch system (Figure 8) provides extended travel range to accommodate a
wide variety of clinical treatment fields. The couch top contains removable side-rail and
centerspine sections to enable posterior or posterior-oblique treatment field portals. You can
control all motor functions of the
Novalis Dose Delivery System from two
microprocessor-based hand pendants connected to the couch.
Hand Pendants By using lightweight hand pendants connected to the end of the couch, you can
simultaneously control four variable-speed, motorized couch or gantry motions. Additional
controls on the hand pendant regulate field light, room lights, treatment room functions and
other functions of the
Novalis Dose Delivery System .
Control Panels Control panels on each side of the treatment couch have buttons that duplicate many of the
hand pendant controls. The control panels also have keys that release the longitudinal and
lateral drives to allow manual control and to extend the couch top height above isocenter.
Each panel also has a button for shutting down the
Novalis Dose Delivery System in an
emergency.
Couch Panels The treatment couch top contains removable panels to facilitate posterior and posterior-
oblique treatments. Radio lucent, tennis-racket-type panels provide patient support when
you must remove a standard panel for treatment. You insert film cassettes onto a slider tray,
then move them into position inside the couch top.
Side and
Centerspine Rails
One end of the treatment couch top is constructed with a side rail used for posterior treatments.
The other end is constructed with a centerspine rail used for posterior-oblique fields. The
couch top can be manually rotated to permit positioning of either end into the beam.

16 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Treatment Couch
Figure 8: Treatment Couch
90

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 17
Emergencies and Safety
4 Emergencies and Safety
4.1 General Information
Overview This chapter provides information about emergency procedures and safety precautions that
apply to the general operation and maintenance of the
Novalis Dose Delivery System and
its associated equipment.
Owner
Responsibilities
To ensure safe operation and maintenance conditions for the use of the Novalis Dose
Delivery System
, the owner is responsible for establishing emergency and safety
procedures. Use this chapter, along with the warnings in the other books in the
documentation set, as the starting point to formulate local procedures.
Preparing
Personnel
The Novalis Dose Delivery System is a very sophisticated and potentially hazardous piece
of equipment. Uninformed or careless operation or service can result in poor performance,
equipment damage, serious bodily injury, and even death. The owner should require the
following actions of each person who operates, maintains, or otherwise is associated with
the
Novalis Dose Delivery System :
• Become thoroughly familiar with and follow the operating instructions in the Clinical
User Guide and the Reference Guide for the
Novalis Dose Delivery System .
• Become thoroughly familiar with and follow the emergency procedures and safety
precautions in this chapter, as well as warnings in the other books in the documentation
set.
• Become thoroughly familiar with and follow the emergency and safety procedures
established for local use by the owner.
• Take all precautions necessary to protect themselves, patients, and other persons from
injury, and to protect equipment from damage.
Brainlab
Responsibilities
Brainlab cannot be responsible for personal injury or equipment damage resulting from
misuse of the
Novalis Dose Delivery System .
Direct your questions regarding safe use of the
Novalis Dose Delivery System to the
following address:
Brainlab AG
Olof-Palme-Str. 9
81829 Munich
Germany

18 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Safety Precautions
4.2 Safety Precautions
4.3 About the Emergency Procedures
An emergency situation can arise at any time.
Overview This manual contains the emergency procedures recommended for use in the following
situations:
• Treatment beam fails to terminate (page 19)
• Hospital power fails (page 19)
• Fire, smoke, or gas fumes detected (page 20)
• Emergency-off circuits fail (page 20)
• Treatment couch cannot be lowered (page 21)
Owner
Responsibilities
The owner is responsible for adapting these procedures locally and establishing other
necessary emergency procedures.
4.4 Hospital Responsibilities
Topic Page
About the safety precautions page 22
X-ray and electron beam radiation page 22
Radio-frequency radiation page 23
Electromagnetic interference page 24
Sulphur hexafluoride escape page 24
Sulphur hexafluoride decomposition page 25
Implosion page 25
Electrical shock page 25
Collision with gantry page 26
Falling parts or accessories page 27
Deterioration of plastic parts from radiation page 27
Patient fall from the treatment couch page 27
Moving parts on the treatment couch page 28
High-temperature surfaces page 28
Electrical fire page 29
Laser beams page 29
Software integrity page 29
Microwave tube operating hazards page 34
Topic Page
Operations planning page 30
Radiation protection survey page 30
Calibration page 31
Safety and emergency training page 31
Routine use page 31
Quality assurance page 32
Accidental radiation overdose page 32
Hospital emergency plan page 33

Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 19
Emergencies and Safety
4.5 Treatment Beam Fails to Terminate
Overview If the accumulated radiation dose displayed on the console monitor exceeds the dose preset
for the treatment, the
Novalis Dose Delivery System does not terminate a treatment
properly.
Emergency
Procedure
4.6 Power Failure
Overview If the hospital power fails, use the following emergency procedure.
Emergency
Procedure
Step Action
1. Immediately press the BEAM OFF button and turn the DISABLE/ENABLE
keyswitch to the DISABLE position.
2. If the beam remains on, press the nearest EMERGENCY OFF button.
3. If the beam still remains on, turn off the main facility circuit breaker.
4. If you need to lower the treatment couch to remove a patient after you press an
EMERGENCY OFF button or open the main circuit breaker, use the emergency
pendant (page 21).
5. Do not operate the
Novalis Dose Delivery System until service personnel verify
proper operation, including emergency-off circuits.
Step Action
1. If necessary, activate emergency lighting.
2. If you need to lower the treatment couch to remove a patient, use the emergency pendant
(page 21).
3. If a patient was receiving therapy at the time of the power failure, record the cumulative
number of monitor units the patient received before the interruption.
Note: This value appears on the MONITOR UNITS digital display on the front of the
console electronics cabinet.
4. When power is restored, do not use the
Novalis Dose Delivery System for treatments
until you complete the daily startup procedures.
Note: Refer to the Clinical User Guide for the Novalis Dose Delivery System for
daily startup procedures.

20 Reference Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0
Fire, Smoke or Gas Fumes
4.7 Fire, Smoke or Gas Fumes
Overview If you or other hospital personnel detect fire, smoke, or unrecognized fumes, use the
following emergency procedure.
Emergency
Procedure
4.8 Emergency-off Circuits Fail to Operate
Overview Pressing an EMERGENCY OFF button immediately turns off power in the gantry, drive
stand, modulator cabinet, dedicated keyboard, and the upper section of the console
electronics cabinet. However, the console video monitor and console computer remain
powered.
If you press an EMERGENCY OFF button and the sound of running motors within the
treatment room continues or the power indicator on the dedicated keyboard remains lit, the
emergency-off circuit has failed. Perform the following procedure.
Emergency
Procedure
Step Action
1. Press the nearest EMERGENCY OFF button.
2. If you need to lower the treatment couch to remove a patient, use the emergency pendant
(page 21).
3. Evacuate all personnel to a safe area.
4. Notify fire authorities.
5. If a patient was receiving therapy when you pressed the EMERGENCY OFF button, wait
until it is safe to re-enter the console area, then record the cumulative number of monitor
units the patient received before the interruption.
Note: This value appears on the MONITOR UNITS digital display on the front of the
console electronics cabinet.
6. Do not operate the
Novalis Dose Delivery System until service personnel verify
proper operation.
Step Action
1. Turn off the main facility circuit breaker.
2. If you need to lower the treatment couch to remove a patient, use the emergency pendant
(page 21).
3. If a patient was receiving therapy when the emergency-off circuits failed, record the
cumulative number of monitor units the patient received up to that time.
Note: This value appears on the MONITOR UNITS digital display on the front of the
console electronics cabinet.
4. Do not operate the
Novalis Dose Delivery System until service personnel verify
proper operation, including the emergency-off circuits.