Berthold LB 8901 User manual

Shield
LB 8901
Operating Manual
64449BA2
Rev.
No.:
01, 10/2018

BERTHOLD TECHNOLOGIES GmbH & Co. KG
Calmbacher Str. 22
75323 Bad Wildbad, Germany
www.Berthold.com
Telephone [phone]
Fax [phone]
[email protected]

LB 8901 Shield Table of contents
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1
Table of Contents
1About this operating manual............................................................................. 2
1.1 Some prior remarks ...................................................................................................... 2
1.2 Storage .......................................................................................................................... 2
1.3 Target Group ................................................................................................................ 2
1.4 Validity of the Manual ................................................................................................. 3
1.5 Structure of the Manual............................................................................................... 3
1.6 Copyrights ..................................................................................................................... 3
1.7 Representation ............................................................................................................. 3
1.8 Symbols Used ................................................................................................................ 4
1.8.1 Structure of Warnings.................................................................................................. 4
1.8.2 Symbols used on the device......................................................................................... 5
2Safety manual ..................................................................................................... 6
2.1 Proper use ..................................................................................................................... 6
2.2 Ambient conditions during operation and storage................................................... 7
2.3 Qualification of the personnel .................................................................................... 7
2.4 Radiation Protection .................................................................................................... 9
2.4.1 Basic principles and regulations .................................................................................. 9
2.4.2 Exposure of employees to radiation ......................................................................... 10
2.4.3 Theft protection ......................................................................................................... 10
2.4.4 In the case of fire........................................................................................................ 10
2.6 Type plate of the source ............................................................................................ 11
3System Description ........................................................................................... 13
3.1 View............................................................................................................................. 14
4Installation........................................................................................................ 15
4.1 Safety Instructions ...................................................................................................... 15
4.2 Packaging .................................................................................................................... 16
4.3 Intermediate storage of the source .......................................................................... 16
4.4 Preparing the Installation .......................................................................................... 16
4.5 Checking the delivery................................................................................................. 17
4.6 Installation of the shield ............................................................................................ 18
5Maintenance and Repair .................................................................................. 21
5.1 Safety instructions ...................................................................................................... 21
5.2 Visual inspection......................................................................................................... 22
5.3 Leak test ...................................................................................................................... 22
5.4 Removing and installing the source.......................................................................... 23
5.4.1 Removing the source.................................................................................................. 24
5.4.2 Installing the source ................................................................................................... 26
5.5 Source replacement.................................................................................................... 28
5.5.1 Replacing the source .................................................................................................. 28
6Decommissioning.............................................................................................. 31
6.1 Safety instructions ...................................................................................................... 31
6.2 Disassemble the shield ............................................................................................... 32
6.3 Disposal of radioactive substances ............................................................................ 33
6.4 Shipment of radioactive substances.......................................................................... 33
7Appendices ....................................................................................................... 35
7.1 Check lists for tests ..................................................................................................... 35

1 About this operating manual LB 8901 Shield
2
64449BA2 Rev. 01, 10/2018
1About this operating manual
1.1 Some prior remarks
The product is handed over to you by the manufacturer
BERTHOLD TECHNOLOGIES GmbH & Co. KG in a complete and functionally
reliable condition.
This operating manual illustrates how to:
•set up/install the product
•carry out maintenance on the product
•disassemble the product
•dispose of the product
Read these instructions thoroughly and completely before working with the
product. We have tried to compile all the information for safe and proper
operation for you.
However, should questions arise which are not answered in this manual, please
contact BERTHOLD TECHNOLOGIES GmbH & Co. KG.
Store the instructions where they are accessible for all users at all times.
1.2 Storage
This operating manual as well as all product-related documentation relevant to
the respective application must be accessible at all times during the life cycle near
the device.
1.3 Target Group
The product may only be installed, operated, maintained and repaired by trained
personnel.
This manual is directed at qualified specialist personnel who are familiar with
handling radioactive sources and heavy system components.
Specialist personnel refers to those who can assess the work assigned to them and
recognise possible dangers through their specialist training, knowledge and
experience as well as knowledge of the relevant regulations.

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1.4 Validity of the Manual
The manual is valid from the delivery of the Berthold product to the user until its
disposal. Version and release date of this operating manual can be found in the
bottom of each page. An alteration service is not provided by the manufacturer
BERTHOLD TECHNOLOGIES GmbH & Co. KG.
The manufacturer reserves the right to make changes to this operating manual at
any time without stating reasons.
NOTICE
The current revision of this operating manual replaces all previous versions.
1.5 Structure of the Manual
This manual has been divided into chapters. The order of the chapters should
help you to familiarise yourself quickly and properly with the operation.
1.6 Copyrights
This manual contains copyright-protected information. None of the chapters may
be copied or reproduced in any other form without prior authorisation from the
manufacturer.
1.7 Representation
Identifier
Meaning
Example
Round brackets
Image reference
Connect the plug (fig. 1,
item 1)

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1.8 Symbols Used
1.8.1 Structure of Warnings
j
Signal word
Source and consequence
Explanation, if required
Measure
In case of emergency
•Warning symbols: (warning triangle) draws attention to the hazard
•Signal word: states the severity of the hazard
•Source: states the type and source of the hazard
•Consequence: describes the consequences if warning is ignored
•Measure: states how one can avoid the hazard
•In case of emergency: states how to react in case of direct danger.
Warning levels used
In this manual, warning instructions in front of instructions for action refer to
risks of injury or damage to property. The hazard-prevention measures described
must be observed.
j
DANGER
Indicates an
imminent
, major hazard, which will certainly result in serious
injuries or even death if the hazard is not avoided.
j
WARNING
Indicates a
potential
hazard, which can result in serious injuries or even death
if the hazard is not avoided.
j
CAUTION
Refers to a
potentially dangerous
situation, which can result in medium or
minor physical injuries or damages to property, if it is not avoided.
NOTICE
If this information is not observed, deterioration in the operation and/or
property damage may occur.
IMPORTANT
Sections marked with this symbol point out important information on the
product or on handling the product.
Tip
Provides tips on application and other useful information.

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1.8.2 Symbols used on the device
Ionising radiation
The shield is equipped with a radioactive source. Please note the handling
instructions. Please observe the transport instructions in this operating
manual.

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2Safety manual
2.1 Proper use
The source with shield is used in connection with a detector provided by
BERTHOLD TECHNOLOGIES to measure the radiation intensity occurring during a
radiometric measurement.
The shield was developed as shield/protective container for radioactive sources
and may be used exclusively for this purpose.
Usually, the shield contains a radioactive source. The notes on radiation
protection contained in the present manual as well as any statutory requirements
in this respect are to be strictly adhered to.
The following constitutes proper use:
•Adhering strictly to the instructions and operation sequences and not
undertaking any different, unauthorised practices which could put your safety
and the operational reliability of the shield at risk!
•Observing the provided safety instructions!
•Carrying out the prescribed maintenance measures or having them carried out
for you!
The following constitutes improper use and is to be avoided:
•Any non-compliance with the present operating manual for the supplied
products
•Applying conditions and requirements which do not conform to those stated
in the technical documents, data sheets, operation and assembly instructions
and other specific guidelines of the manufacturer.
•The usage after any repair carried out by employees who have not been
authorized by BERTHOLD TECHNOLOGIES GmbH & Co. KG.
•Using the product in a damaged or corroded condition.
•Dismounting the unit while the radiation beam outlet is open.
•Operation without the safety precautions provided by the manufacturer.
•Any modification to design and function, except for any activities provided for
and described in the present manual.
•Restructuring or changing the system components.
•Manipulation or avoidance of existing safety equipment.
BERTHOLD TECHNOLOGIES GmbH & Co. KG shall only accept liability for /
guarantee the correspondence of the product to its publicised specifications.
If the product is used in a way which is not described in this manual, the product's
protection is compromised and the warranty becomes void.

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2.2 Ambient conditions during operation and storage
The shield was specifically designed for use in rough ambient conditions. The
compliance with the operating conditions specified below contributes to
guaranteeing the permanent functionality of the shield and the prevention of
damage.
Shields containing radioactive substances and sources are to be stored in a
lockable storage room complying with the national requirements as regards the
storage of radioactive substances.
Furthermore, the following prescribed ambient conditions are to be observed:
•The minimum admissible operating/storage temperature is -40°C. Below this
temperature, the sealing rings of the shield may become brittle. In such case,
the leakproofness of the shield can no longer be guaranteed.
•The maximum admissible operating/storage temperature is +100°C. Above this
temperature, the sealing rings of the shield may be destroyed. In such case,
the leakproofness of the shield can no longer be guaranteed.
•Highly combustible or explosive substances must not be kept in the vicinity of
shields in order to prevent a fire from spreading to the radioactive substances.
2.3 Qualification of the personnel
NOTICE
A minimum requirement for all work on or with the product would be
employees with general knowledge who are instructed by an expert or
authorised person.
At different parts in this manual, reference is made to personnel with certain
qualifications who can be entrusted with different tasks during the installation,
usage and maintenance.
The four groups this refers to are:
•Employees with general knowledge
•Experts
•Authorised persons
•Radiation Safety Officer

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Employees with general knowledge
NOTICE
Employees with general knowledge must always be guided by one expert at
the very least. When dealing with radioactive substances, a radiation safety
officer must also be consulted.
Employees with general knowledge are e.g. technicians or welders who can
undertake different tasks during the transportation, assembly and installation of
the product under the guidance of an authorised person. This may also refer to
construction site personnel. The persons in question must have experience in
handling the product.
Experts
Experts are persons who have sufficient knowledge in the required area due to
their specialist training and who are familiar with the relevant national health
and safety regulations, accident prevention regulations, guidelines and
recognised technical rules.
Expert personnel must be capable of safely assessing the results of their work and
they must be familiar with the content of this manual.
Authorised Persons
Authorised persons are those who are either designated for the corresponding
task due to legal regulations or those who have been authorised by
BERTHOLD TECHNOLOGIES for particular tasks. When dealing with radioactive
materials, a radiation safety officer must also be consulted.
Radiation Safety Officer
In order to ensure proper handling and compliance with the statutory
requirements, the company has to appoint a radiation safety officer in
accordance with the applicable national law (in Germany:
Strahlenschutzverordnung [German radiation protection regulation]). The
radiation safety officer must implement the statutory radiation protection
requirements in order to protect employees against damage to their health
caused by handling radioactive materials.
NOTICE
Dangerous goods officers must not perform any activities as radiation
protection officers!
Radiation protection officers must have a specific training with certification.

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2.4 Radiation Protection
2.4.1 Basic principles and regulations
The amount of radiation absorbed by the body (exposure to radiation) is
determined by three parameters from which the basic radiation protection
regulations can be derived:
Distance
If work close to equipment containing
radioactive substances is required, the
largest distance possible is to be kept. In
particular, this shall apply for employees
which do not immediately participate in
such work.
Time
Any work re
quired in the vicinity of
radiometric measuring system is to be
prepared carefully and to be organised
in a way that the work can be executed
as quickly as possible. Here, providing
the correct tools and aids is particularly
important.
Shield
When mounting and dismounting the
shield, it is to be ensured in advance that
the radiation beam outlet is closed.

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2.4.2 Exposure of employees to radiation
During installation, maintenance and decommissioning of the shield, employees
may be exposed to radiation.
In order to keep such exposure as low as possible, the shield with the source may
only be mounted and/or dismounted by authorized employees. Such authorised
staff is to be instructed as regards all rules of behaviour when handling
radioactive substances in advance.
It is to be ensured that the radiation beam outlet of the shield is closed and
secured in order to prevent the emission of unshielded radiation. Modification or
damage to the shield must be avoided at all times.
Any work may only be executed according to the instructions and under the
supervision of the radiation safety officer, who furthermore has to calculate or
estimate the exposure of the employees to radiation in order to ensure that the
statutory dose rate limits are not exceeded.
2.4.3 Theft protection
Radioactive substances or equipment containing radioactive substances must be
secured in a way that they are protected against access by unauthorized persons.
In the case of firmly installed equipment containing radioactive substances, the
protection against unauthorized access is generally provided by the firmly
attached installation.
Shields with radioactive sources which are decommissioned for a certain period of
time must be dismounted and securely stored in a storage room complying with
the national regulations as regards the storage of radioactive substances.
Portable measuring systems must never be left unsupervised. When this
equipment is out of use, it is to be protected against access by unauthorised
persons.
2.4.4 In the case of fire
The shield material can melt and leak from the shield if exposed to very high
temperatures for an extended period of time. During and after a fire, there is a
risk of major long-time consequences for your health due to the incorporation of
tungsten as well as a risk of increased radiation exposure.
When planning the use of radiometric measuring systems, constructional
measures ensuring fire prevention are to be provided.
In the case of fire, these measures limit the access to this area.
Avoid the incorporation by keeping sufficient distance.
Notify BERTHOLD TECHNOLOGIES of the situation; you will promptly
receive information on immediate measures.

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2.5 Operator's obligations
The operator of the product must regularly train his personnel in the following
topics:
•Observation and use of the operating manual and the legal provisions.
•Proper use of the product.
•Observation of the plant security instructions and the operating instructions of
the operator
2.6 Type plate of the source
Fig.
1 Type plate of the source

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LB 8901 Shield 3 System Description
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3System Description
The LB 8901 shield is intended as shield/protective container for radioactive point
sources and may only be used for this purpose. The radioactive substance is
contained in a leak-proof welded source capsule and installed in the LB 8901
Shield. Apart from source and shield, additional system components such as
detectors and evaluation units are required for a complete measuring system.
Usage of these system components is not subject of this operating manual. Please
refer to the individual manuals of the respective system components.
The shield container consists of a robust steel housing filled with tungsten. To
lock the radiation beam outlet channel, a transport cap is installed.
The source is installed in a way that ensures that the locking lever protects it
against unauthorized removal. The shield container is equipped with a flange for
mounting.
The Shield has the following functions:
•Shield radiation to a level that is non-hazardous for the operating personnel
•Locking the radiation beam outlet channel for transport and during
installation
•Protecting the integrated source capsule from mechanical damage and
environmental impact

3 System Description LB 8901 Shield
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3.1 View
1
2
3
4
5
Transport cap
Padlock for transport cap
Cover plate
Seal wire
Padlock for cover plate
Fig.
2 Design
1
2
3
4
5
Lead
Tungsten
Stainless steel
Source capsule
Source holder
Fig.
3 Sectional representation

LB 8901 Shield 4 Installation
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4Installation
4.1 Safety Instructions
j
WARNING
Danger of injury by falling loads
Never stand underneath a lifted or suspended load, keep at a safe
distance.
Only use tested sling gear components appropriate for the transport
weight.
Exclusively use the provided fixing possibilities (lifting brackets) for
attaching the sling gear.
Observe the marking for the centre of gravity on the outer packaging, if
applicable.
Wear head protection and safety shoes.
j
WARNING
Danger of injury caused by heavy and bulky system components
Despite their small size, the shield and the transport cap have a high
weight.
When handling and installing heavy and unwieldy system components,
work with at least 2 persons.
Observe the guidelines for safe handling of heavy loads.
j
CAUTION
Danger caused by ionising radiation
Shields usually contain radioactive sources. An increased exposure to radiation
may lead to damage to health.
Consult the radiation safety officer responsible for your company.
Transport the source exclusively inside the closed and secured shield.
IMPORTANT
The applicable national regulations of the country of use have to be observed.

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4.2 Packaging
The shield with radioactive source fulfils the regulations for the transport of
radioactive substances (type A packaging).
4.3 Intermediate storage of the source
If the source must be intermediately stored at the site of use between delivery
and installation, please observe the following notes:
Store the source exclusively inside a closed and secured shield.
Store the shield in a lockable and properly marked room. The storage room
must comply with the national requirements regarding the storage of
radioactive substances.
Accessible areas of increased radiation exposure must be marked and closed
off, if required.
4.4 Preparing the Installation
IMPORTANT
Size and position of the applicable measuring range are specified in the
project planning phase and determined by means of drawings, sketches or
written notes. During installation, these specifications must be strictly
observed since deviations may lead to malfunction of the measuring system.
To avoid an unnecessary exposure to radiation, the handling period of the source
(even if it is shielded) must be kept as short as possible during installation. It is
therefore recommended to perform the following steps prior to delivery of the
source:
•Installation planning (incl. estimation of radiation exposure)
•Instruction of the employees
•Organising and cleaning the installation site
•Preparing the required tools and hoisting devices
•Removing all obstacles which might hinder the installation of the shield or the
source