Messger Strahlensch E 36233
Contamination Monitors
Dose and Dose rate Monitors
Measuring Systems for Air and Waste Water
Instruments to Search for,
Detect and Measure Radioactivity
Instruments for
Radiation Protection
No Chance for
Radioactive Contamination
Radionuclides are needed and useful in many fields of
application. However, they may also be dangerous if
improperly handled. Therefore working with radioactive materials in Nuclear Medicine, Research or in
other fields of radionuclide applications requires continuous monitoring to detect possible contamination
of surfaces and objects in working areas, as well as on
clothes and on exposed skin.
If you need a portable instrument for monitoring
surface contamination, we offer three product
families: The handheld monitors LB 122 or LB 124
for single-hand operation with built-in large-area
detectors or the versatile LB 123 UMo system with
externally connected contamination detectors.
To detect possible contamination of personnel,
the Hand Foot Monitors LB 145 and LB 146 are
With Contamination Monitors from BERTHOLD
TECHNOLOGIES, contaminations do not have any
chance to remain undetected, regardless which
radionuclide or location.
available. Moreover, for larger laboratories or nuclear
facilities, the Floor Monitors LB 165 and LB 166
are available to reliably assess widespread
Measuring safely with one hand:
The beta-gamma Contamination Monitor LB 124
offers superior performance among hand-held instruments.
The advantages:
■ The 150 cm2 detector measures beta and photon radiation
with highest counting efficiency, in particular for EC emitters
like 125I or 99mTc
■ The large, easy-to read backlit LCD display shows measured
results in cps or Bq/cm2 with factory defined, editable calibration
factors for more than 50 radionuclides
■ Powerful software supports numerous measuring modes and
parameter settings, for example: search, clearance
measurement, half-life, background measurement mode
■ The monitor is easily configured both for the unskilled user and
for the demanding measuring expert
■ The memory stores up to 1000 measurements with date/time
stamp. Data may be downloaded to a PC or printer via the
RS232 interface
For Field use or storage:
LB 124 in its transport case
A proven and widespread hand-held instrument:
The alpha-beta Contamination Monitor LB 122
for reliable assessment of alpha and
beta emitting radionuclides.
The advantages:
■ Highly efficient and easily exchangeable 200 cm2 detectors to
detect either beta / photon radiation, or alpha-beta radiation
■ The backlit LCD display shows measured results in cps or
Bq/cm2 with factory-defined calibration factors for over 40
different radionuclides
■ The software supports various measuring modes and parameter
selections, including background measurement and subtraction.
■ Many accessories such as a docking station for semi-stationary
operation to measure alpha-beta radiation with a gas-flow
The LB 122 is approved
proportional detector
for use at fire brigades
A very efficient and versatile instrument for the Health
Physics professional: The
Universal Radiation Protection Survey Meter LB 123 Umo: The LB 123 A
as α−β or the LB 123 B as β−γ contamination monitor
The advantages:
■ A series of detectors to connect to the small, portable LB 1230
electronics unit, to measure alpha-beta, beta-gamma, or Tritium
contamination or even gamma / Neutron dose rate.
■ The electronics unit identifies automatically the connected
probe and selects the appropriate measuring mode and
parameter set.
■ Data storage and serial interface and the features of the LB 122
■ A power supply unit to ”dock” the LB 123 for stationary use
with mains connection
For Tritium contamination measurements,
the windowless gas flow-through
detector LB 1239 is used.
Numerous accessories for the LB 123
from a wall bracket to a portable
printer are available. In addition, also
Gamma/Neutron dose rate detectors
may be connected.
For easier and quicker contamination surveys
in major laboratories or nuclear facilities:
Floor Monitors LB 165 and LB 166 with a new
generation of extremely large proportional detectors
The advantages:
■ Two versions for beta-gamma (LB 165) and alpha-beta (LB 166)
emitting nuclides
■ Detector entrance window of 2000 cm2
■ Alpha-beta monitor LB 166 with built-in counting gas supply
■ Measuring and display unit LB 1230 with data storage and
printer interface
■ Dynamic background compensation with additional guard
detector available for LB 165 with LB 5330 electronics unit
■ Detector ground clearance adjustable from 6 to 24 mm
An indispensable monitor for the safety
in radionuclide laboratories and nuclear facilities:
Hand-Foot Contamination Monitors LB 145/146
for quick and reliable measurement of contaminations
on hands, feet and clothing
The advantages:
■ Two versions for beta-gamma (LB 145) and alpha-beta (LB 146)
emitting nuclides
■ Large screen with direct display of contamination values
and areas
■ Optional detachable frisker probe allows measurement of
clothes or objects
■ Stored calibration factors for numerous radionuclides
■ Automatic compensation for varying background levels
■ Optional back-of-hands probes, adapt to different hand sizes
for alpha-beta measurements
■ Large data storage, Serial interface, Optional Ethernet connection
■ Ergonomic design, light sensors to ensure correct measurement
The Hand-Foot Contamination
Monitors LB 145/146 can also be
provided with additional
back-of-hands probes which adapt
Separate large TFT screen
automatically to different hand sizes in
(standard from 2003 on)
the LB 146 alpha-beta version.
Measuring Radioactivity
in Solid and Liquid Samples
In order to meet radiological safety regulations for
handling radioactive substances different sampling
such as, smear samples,
methods are used in the laboratory to measure activity
To measure extremely low alpha and beta activities
in solid samples, both the Low-level Planchet Counter
aerosol filters, evaporation
LB 761 for 200 mm planchets and the 10-fold Low-
residues. Also environ-
level Planchet Counter LB 770 for simultaneous
mental or foodstuff samples
measurement of 60mm planchets are ideally suited.
may require the measurement of radioactivity.
For in-situ gamma measurements of environmental
BERTHOLD TECHNOLOGIES supplies well proven
and foodstuff samples up to 1 l volume the portable
and easy to operate instruments for these tasks.
Foodstuff Monitor LB 200 is available.
For radioactivity measurements in small samples, the
Universal Radiation Protection Monitor LB 123 UMo
is available with several special probes.
The large diam. 200 mm planchets of the
Measuring foodstuff and environmental samples any-
Planchet Counter LB 761
time, anywhere: The Portable Foodstuff Monitor
can be used to measure air filters or ash,
LB 200 is easy to operate even for an unskilled user and
soil or evaporated water samples.
has proven itself more than 1000-fold following Chernobyl.
For 137Cs 10 Bq/l minimum
Typ. Detection Limits within 1 h measuring
detectable activity.
time: 241Am 60 mBq, 90Sr 50 mBq
The obtained statistical
accuracy of the measured
value is indicated during the
measurement. Therefore, the
user can select the optimum
measuring time and accuracy.
For the measurement of samples up to 25 mm dia:
To measure large quantities of samples with high
The Universal Radiation Protection
Monitor LB 123 UMo with end window
sensitivity, the
counter tube LB 1238 and lead shielding LB 7431
for 60-mm-planchets is the instrument of choice
10-fold Low-level counter LB 770
MDA's within 1 h measuring time: 241Am 5 mBq, 90Sr 20 mBq
simultaneously. Connection of a PC via the LB 530 PC Interface,
Beta surface contaminations
of 1 Bq/cm are
reliably detected using
wipe tests.
evaluation and documentation software LB 770 UMS Windows.
Measure the Exposure
at the workplace
Whoever works with radiation sources or X-ray machines in laboratories, in radiology, in radiography or at
other technical irradiation facilities should be informed
about current radiation levels at all times.
In Gamma or Neutron radiation field surveys the LB 123
UMo does an excellent job as a dose rate meter. For
measurements of gamma- and X-rays in particular, the
With dose and dose rate
TOL/F with its ionization chamber is ideally suited.
monitors from BERTHOLD
For stationary measurement of dose and dose rate with
TECHNOLOGIES you will detect reliably and quickly
alarm capability the LB 111 system is available. Our
any increase in dose rate at the workplace that could
portable or stationary neutron probe LB 6411
lead to an undesired exposure of personnel.
evaluates with high sensitivity and precision neutron
dose rate levels.
A versatile combination system for the expert:
The universal radiation protection survey
meter LB 123 UMo as dose and dose rate monitor
LB 123 D for gamma- and LB 123N for neutron radiation
Dose rate measuring range
0.05 µSv/h to 10 mSv/h
Energy dependence
< 30 % from 30 keV to 2 MeV
■ The small portable electronics unit LB 1230 accepts alternatively
the gamma probe LB 1236, the neutron probe LB 6411 or
several contamination probes
■ The basic unit identifies the connected probe and selects
automatically the required parameter settings
Neutron probe LB 6411
■ Optical and acoustical warning via adjustable alarm thresholds
■ The basic unit offers various measuring modes from counts
or cps, dose rate and dose integration as well as a large data
storage and serial interface
■ A (wall mount) power supply unit allows "docking" of the
LB 123 for stationary use with mains connection
Dose rate measuring range
30 nSv/h to 100 mSv/h
Energy dependence
< 30 % from 50 keV to 10 MeV
High sensitivity: 3 counts/nSv
The well-proven precision measurement device for
gamma- and X-rays: Ionisation
measuring instrument TOL/F
with wide energy and measuring ranges
The advantages:
■ Measurement of low energy photon radiation down to 10 keV
■ Dose rate measurement over 7 decades in two measuring
■ Automatic gain adjustment with built-in 90Sr source
■ Optical and acoustical warning with adjustable alarm thresholds
■ Measurement of pulsed radiation fields
Steady state dose rate and dose measuring
ranges 0.1 µSv/h to 100 Sv/h, dose from 0.01 µSv
Energy range 10 keV to 7 MeV
Rugged and versatile:
Dose rate monitor LB 111
for gamma and neutron radiation with
data memory and data transfer
The advantages:
■ Two-channel system for gamma and neutron probes
■ High dose rate range with optional ion chamber detectors
■ Light beacon with horn for warning of levels exceeding
adjustable alarm thresholds
■ Rugged casing with protection IP 65 for wall assembly
■ Data transfer in LAN's and WAN's
Dose rate measuring ranges
0.05 mSv/h to 1 Sv/h in two ranges, with
ionization chamber LB 6701N to 1000 Sv/h
Energy ranges
from 20 keV depending on probe type
Detect and identify Gamma radiation and
radioactive sources and measure the dose rate:
Gamma Analyzer LB 125 a hand-held
instrument for field and laboratory application
The advantages:
■ Easy acquisition of the gamma spectrum
■ Automatic peak and nuclide identification
■ Dose rate measurements with alarm thresholds and acoustical
■ Search and identify mode
■ Stores up to 30 spectra
■ Data transfer and remote operation
Dose rate measuring range
0.01 µSv/h to 100 µSv/h
Energy range 25 keV to 2 MeV
Analyzer with 512 channels
Facing Challenging
Tasks with
Customized Systems
requirements for radiation protection very often
In large installations and facilities, the regulatory
recent years a considerable know-how in handling
translate into a site-
customer-specific projects, and has excellent
specific approach.
national and international references. You will find
Therefore, only
some examples below.
systems tailored to
the customer’s needs
will optimally solve
effective implementation. There are more and more
the individual measuring tasks.
requirements for turnkey solutions. Widespread use
A close cooperation between manufacturer and
of Quality Systems imposes ever-higher demands on
customer early in the planning phase is a key for an
documentation and project management.
A highly modern facility for nuclear waste disposal:
The National Agency for Environmental protection
ZWILAG Intermediate Radioactive Waste Storage
ANPA operates in Italy a measuring network to
Wuerenlingen AG, Switzerland
monitor the airborne radioactivity
Centralised for Switzerland, radioactive
Data acquisition takes place with nuclide
waste from medicine, industry, research
specific filter tape instruments BAI 9100DG
and nuclear power plants is conditioned
for permanent disposal, and stored
from Piemont in the North down to
intermediately in the ZWILAG facility.
Sicily. The data are transferred to
central stations in Rome and Milan. The
installed the following instrumentation:
high-resolution gamma spectroscopy
with Germanium detectors ensures
■ Dose rate measurement for both gammas and neutrons
■ Room air monitoring
extremely low detection limits and identification of the measured radionuclides.
■ Exhaust air monitoring
■ Isokinetic sample extraction from stacks and ventilation ducts
■ Stack monitoring at the plasma incineration facility
In numerous PET
Centres like e.g. Bonn, Berlin,
Juelich, Munich, Geneva or Vienna, the
The National Institute for Public Health and
exhaust air is monitored with monitors from
Environment of the Netherlands RIVM monitors
with 14 measuring stations the airborne alpha and
beta activity in the Netherlands
Our concept for measuring PET nuclides such as 11C, 15O or 18F is
based on the detection of positrons, which is superior to the detection of annihilation radiation. BERTHOLD TECHNOLOGIES is capable
These measuring stations are equipped with particulate moving
of planning and installing these systems meeting all requirements
filter tape monitors BAI 9128 from BERTHOLD TECHNOLOGIES.
of regulations, standards, EU laws, and licences of the authorities.
Airborne Radioactivity
The permanent supervision of radioactivity in room
and exhaust air of larger laboratories or nuclear facilities and the environmental monitoring of nuclear
power plants is an importask. In recent years, the
number of applications in
tant radiation protection
Below is a summary of our airborne activity
sampling and measuring systems:
Particulates: Fixed filter instruments for diam.
nuclear decommissioning, processing and storing
47, 50, 60 and 200 mm filters; filter tape systems with
radioactive waste is increasing.
scintillation and solid state detectors.
BERTHOLD TECHNOLOGIES offers for this purpose
Iodine: Monitors for gaseous and organic 125I, 131I or
a complete range of mobile instruments to custo-
I with collection on industrial standard cartridges,
mized, complete measuring installations for parti-
refillable Marinelli beakers or active charcoal filters.
culates, gas, Iodine and Tritium monitoring. The
Noble gases and PET nuclides: Monitors for noble
data from different measuring instruments including
gases like 85Kr, 133Xe, 41Ar and PET nuclides like 11C,
dose rate meters, e.g. for PET centres or in environ-
O or 18F. Monitors with fixed geometry in by-pass
mental networks, can be visualized and archived, by
or detectors for installation directly in the stack.
the MEVIS Central Station. Get in touch with our
Combined measurements: PIN monitors for
product specialists if air monitoring is your problem.
particulates (P), Iodine (I) and noble gases (N).
Tritium: As vapour or gas 3H-monitoring systems
with compensation of the influence of 14C, noble
gases and background.
guarantee safe and reliable measurements. But there
is even more: make use of our know-how and our
expertise for:
■ Concept, design and layout
■ Customized engineering and manufacturing
■ Installation and Commissioning
■ Calibration
■ Documentation
■ Service
Particulate Monitors
Applicable in all locations:
Filter tape particulate monitor BAI 9128
with silicon solid state detector for continuous
measurement of alpha and beta particulate activity
The advantages:
■ Transportable compact unit
■ Advance speed of filter tape selectable
Air throughput 3.3 m3/h; Instrument Detection limit at 1 h measuring time
6 mBq/m3 for alpha and 40 mBq/m3 for beta emitting radionuclides
■ Compensation of influence from Radon decay products
■ Dose rate probe optional
For simultaneous evaluation of artificial alpha and
beta particulates with highest sensitivity:
fixed filter monitor LB 150 D-R with
measurement and compensation of natural radioactivity
The LB 150 D-R fixed filter air monitor with integrated electronics
Gracon LB 3404-S samples particulates on filters with diam.
200 mm. For natural background compensation a combination of
ABPD and alpha range discrimination is used.
Typical detection limits for 1 h measuring time:
Instrumental Det.Lim. to DIN 25482-1 with
k1-α = k1-β = 1.645
alpha 2 x 10-3 Bq/m3, beta 1 x 10-2 Bq/m3
At 10 Bq/m3 natural activity
alpha 1.7 x 10-1 Bq/m3, beta 3.5 x 10-1 Bq/m3
The advantages:
■ Isokinetic airflow with correction for retention of particulates
■ Energy independent compensation method
■ Nearly independent of Radon/Thoron ratio
■ Continuous measurement and alarm checking during air sampling
The flagship of the air monitors from
filter tape monitor BAI 9100DG
measures continuously the alpha and beta particulate
activity in exhaust or environmental air and analyses
Measuring ranges and detection limits for
1 h measuring time in Bq/m3:
alpha 1 x 10 -3 to 5 x 10 4
beta 1 x 10 -2 to 5 x 10 4
I 2 x 10 -2 to 1 x 105
the nuclide composition of the gamma component.
This filter tape monitor finds special application in measuring the
The advantages:
activity release from nuclear facilities. It provides fast and reliable
■ For the measurement of artificial activity concentrations the influ-
automatic detection of airborne activity in environmental
measuring networks with data storage and data transfer.
ence of natural radioactivity is compensated by using the alpha/
beta ratio or the alpha-beta pseudo-coincidence (ABPD) method.
■ Air flows of up to 25 m3/m are measured and these values are
used to calculate the volumetric activity concentration in Bq/m3
■ The PC-based spectroscopy system offers, together with the
proven GammaVision software, the user an easy to operate
instrument for more sophisticated measurements .
Iodine, noble gas and combined monitors
Ideally suited to survey laboratory air in nuclear
medicine facilities are the
the mobile Iodine monitors BAI 9122
and BAI 9123
Measuring ranges and detection limits
for 10 min measuring time, in Bq/m3:
I 2.5 x 100 to 5 x 106
I 1 x 101 to 1 x 107
in various versions
The monitor BAI 9122 is designed to measure 131I, the BAI 9123 for
The advantages:
■ Self-contained mobile system for application at various locations
I. Lead shields with different thicknesses are available to optimi-
se the performance for the laboratory conditions.
■ Compact design
■ Networkable
■ Easy accessible components
■ Optimised for low noise
If radioactive noble gases such as 85Kr or 133Xe are to
be assessed, then the noble
gas monitors
LB 101 or BAI 9109 are the most suitable instruments.
Detection limits down to 1 kBq/m3 can be achieved
However, most frequently noble gas measurements are required in
combination with Iodine and/or particulate measurements. In this
case, PIN monitors as described below are required.
A monitor for all applications: The
mobile air
monitor BAI 9850-19/PINN measures simultaneously beta particulates (P), 131I (I) and noble gases (N)
in low and high volumetric activity concentrations
The compact and environmently – resistant design makes the monitor
BAI 9850-19/PINN an ideal instrument for routine and intervention
measurements in the operation or decommissioning of nuclear
installations. This monitor is also available as P, PI or PIN monitor.
■ All relevant components of airborne radioactivity will be
measured simultaneously and separately in whatever combinations
■ Measurement is effected with highest sensitivity and over wide
Instrumental measuring ranges and detection
limits for 10 min measuring time in Bq/m3:
Particulate beta activity 3 x 100 to 8 x 106
■ Built-in optical and acoustical alarm signalisation
I activity 7.2 x 100 to 1 x 107
Kr activity 2 x 104 to 8 x 1010 and 5 x 104 to 2 x 1011
With its detection limit of 0.5 kBq/m3,
the LB 110 is about a 100 times more
sensitive than conventional ionisation
Tritium monitors
chamber devices. The measuring range
reaches up to 20 MBq/m3.
If the requirements is for mobile application or a
high measuring range in surveying Tritium-in-air at
high sensitivity the
nuclear installations, the flow-through
Tritium monitor LB 110
ionisation chamber monitor LB 671
with flow-through proportional counter and pulse
is the instrument of choice
rise-time discrimination
The advantages:
The advantages:
■ Wide measuring range
■ Compensation of 14C or noble gas radionuclides
■ Compensation natural alpha emitters
■ Compensation of external gamma radiation
H-in-air specific and
■ Separate registration of the above mentioned radionuclides in
(Radon gas)
a second measuring channel
Measuring range 300 kBq/m3
to 300 GBq/m3
Detect Radioactivity
in Waste Water
Waste water from radionuclide laboratories and
nuclear facilities may contain radioactive substances. It
therefore must be
controlled by measurements when
release limits of
purpose, BERTHOLD TECHNOLOGIES offers various
radioactivity concentrations are observed. To that
For laboratories in nuclear medicine in particular,
the Waste Water Monitor LB 127 has been designed.
on-line measuring systems for beta and gamma
The BAI 9125 instrument, on the other hand, is
emitting radionuclides.
primarily meant for application in nuclear facilities.
When monitoring of gamma emitting radionuclides
with highest sensitivity is required, then the waste
monitor BAI 9125 is the instrument of choice.
The advantages:
■ Low detection limit and wide measuring range
■ Polished stainless steel vessel ensures high contamination resistance
■ Alarm indication and electronic signals for automatic control of
waste water processing
Measuring ranges in kBq/m3
for 1 h measuring time:
Co 1 x 100 to 1 x 107
I 5 x 10-1 to 3 x 106
Cs 6 x 10-1 to 6 x 106
Measurement Data
Visualizing and Evaluating
In major radionuclide laboratories or nuclear medical
facilities like e.g. PET centres, radiation protection
radiological situation and immediate action if limits
requires a continuous monitoring of the momentary
MEVIS collects the measured data from the connected
monitors, displays the data graphically in relation to
are exceeded. This task is performed by the PC-based
place and time, creates tables, checks and reports
Central Data Unit MEVIS, adapted specially to the
alarms. For documentation, the data may be presented
needs and requirements of the measuring systems
in various file formats. Via pull-down menus or
and instruments from BERTHOLD TECHNOLOGIES.
F-keys, from the overview screen all submenu functions
and screens may be reached to control the communication with the measuring systems, to display data
MEVIS offers:
in tabular, listing or graphic format. Extensive
■ A propriety, tamper-proof database
■ Drivers to collect data from the monitors in a background process
possibilities for configuration and customizing.
■ Components and channels to assign the connected monitors
■ Alarming functions
An example MEVIS application:
■ Mimic panel overview screen, embedded measurement data and
The Synchrotron Light Source (SLS) at the Paul
status fields
■ Graphical and tabular presentation of measurement data
■ Report generator
Scherrer Institute (PSI) in Switzerland is a modern
accelerator facility, where numerous international
research groups are doing experiments.
number of mobile dose rate systems at this
installation, which are connected, to a
MEVIS Central Data Unit to display and
archive the results.
Example of graphical data visualization over 24 hours:
Shown on the curves are activity concentrations in the exhaust air,
the stack airflow, the total release and the local dose rate values.
Search and Analyse
Radioactive Materials
and Sources
To find radioactive scrap, lost sources or hidden
nuclear fuel material, - with measuring and
analysing instruments from
An easy-to-handle gamma tracing instrument that
finds sources in obscure locations is the universal
you are well equipped for
monitor LB 123 UMo with NaI-probe. The portable
the job.
Gamma Analyzer LB 125 detects even weak radiation
fields, displays the energy spectrum and allows the
identification of peaks and radionuclides. The highly
sensitive Pu monitor LB 6414 discovers even the
Search and Identify gamma emitters:
smallest amounts of plutonium.
Gamma Analyzer LB 125
as hand-held monitor for
field and laboratory
The portable
Neutron Survey Meter LB 6414
is optimised for fission neutrons.
■ Easy acquisition of the gamma spectrum
will be detected at 1 m
■ Rapid and reliable nuclide identification
distance within a few
■ Intelligent software for displaying and analysing measured data
seconds. Therefore opti-
■ Search mode facilitates source finding
mally suited to search for
■ Stores up to 30 spectra, 512 channels, max 20 µs dead time
illegal Pu or to check
■ Data transfer and remote operation possible
nuclear waste.
The advantages:
■ Highest possible sensitivity in a hand-held equipment
■ Certified by Research Centre Seibersdorf/IAEA VIENNA
Another version of the versatile combination system for the measurement expert:
the universal radiation protection survey meter LB 123 UMo
with NaI probe to track radiation sources
With the separate high-sensitive gamma probe even hidden sources, e.g.
in scrap or wastes will be detected reliably.
BERTHOLD FRANCE SAS - Parc technologique des Bruyères - 8, route des Bruyères - BP 25 - 78770 Thoiry
Tel : +33 1 34 94 79 00 - Fax +33 1 34 94 79 01 - E-Mail : berthold-france@ -
Design modifications may occur without notice
About 10 g reactor Pu
Radiation Protection · 042003 · Id.Nr. 38688PR2 Rev.01
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