LB 147 Personal Contamination Monitor

Radionuclides are widely used in many fields of research, nuclear medicine and in life science. Wherever unsealed radioactive materials are used, radiation protection regulations require contamination monitoring for hands, feet and clothing.

The hand-foot monitor LB 147 is based on innovative scintillation detection technology for the measurement of radioactive contamination. The instrument can be used as a monitor for simultaneous measurement of alpha and beta/gamma contaminations or even as an alpha monitor or beta/gamma monitor. The results can be represented in freely selectable units Bq/cm² or in cps.

The LB 147 has a removable hand probe for clothing measurements. A personal ID is possible by means of an optional card reader or transponder.

Also available as LB 147 Slim.

Have a look and watch our short video how easily you can work with the LB 147 and LB 148:

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Features

Low-maintenance ZnS(Ag)-scintillation detectors
Space-saving design
High detector efficiencies
Removable hand probe for clothing measurement
Simple operation with graphic display and touch display
USB, Ethernet, RS 232 and RS 485 interface
Service functions (plateau, calibration, systematic test,…)
Permanent data memory for 10000 measuring data
Extensive nuclide library
Card reader/transponder for access control (optional)
Double password hierarchy
Voice output: voice instructions, if activated, are output by the monitor

Details

The operation of the LB 147 is very easy by means of the touch panel on the graphical display and the clearly arranged menu structure. In addition, a voice output can be activated to get voice instructions by the monitor.

The monitor can be switched easily between different lead nuclides before the measurement.

Each detector has its own calibration factor for each nuclide and a spillover factor for each alpha nuclide. The input of all parameters is password protected. Calibration factors for more than 50 nuclides in accordance with DIN ISO 7503-1 and A-100 (DIN 44801) are already existing in the software.

The background radiation is continuously monitored for each detector and used to compensate the measurement with the long-term average background value. Before the start of each measurement the background is checked for fluctuations.

The detection limits are calculated according to DIN ISO 11929 for each measured value and will be stored together with the measurement values.

The LB 147 complies with the requirements of the international standard IEC 61098. This is true in particular for the detector performance, the manufacturers’ calibration procedures and the determination of efficiencies.

Numerous service functions permit easily measurements for necessary periodical tests. These include automatic plateau measurement, calibration routines for all detectors and a fast system test.

Up to 10000 measuring data can be stored and transferred via USB, Ethernet, RS 232 or RS 485 to an external computer. A simple communication protocol permits the integration into a measuring network.

As an option, a alarm column, transponder, card reader or printer can be connected. If requested, a gate can be released if no contamination is detected.

The hand-foot monitor is also available as LB 147 Slim with a changed positioning of the hand probes.

Specifications

Electronics
CPU	NXP i.MX 6 ARM Cortex-A9 Windows Embedded Compact 2013
Display	Coloured 7" Touch Panel, 800 x 480 pixels
Ports	5 USB (Host), 1 USB (Device), 1 Ethernet 10/100/1000Mb, 1 RS232, 1 RS485
External signal transmitters	3 relays max. 50 V, 5 A
Power supply	100 - 240 VAC wide-range input, 50/60 Hz
Power consumption	about 14.5 W
Fuse	2 A

Mechanical Data
Dimensions (without alarm tower) LB 147 LB 147 Slim	(W x H x D) 65 x 125 x 80 cm³ 45 x 125 x 90 cm³
Weight	approx. 35 kg

Hand Detectors
Detector	ZnS(Ag) scintillator with light-tight Hostaphan foil
Entrace window´s dimensions	150 mm x 230 mm
Sensitive area	345 cm²
Transmission protective grid	80 %
Typical background	α-channel β-channel	about 0.1 cps about 15 cps
Typical efficiencies (ISO 7503-1)	¹⁴C ³⁶Cl ⁹⁰Sr/⁹⁰Y ²⁴¹Am	20 % 49 % 52 % 33 %
Typical MDA (ISO 11929) with 10 s measuring time	¹⁴C ³⁶Cl ⁹⁰Sr/⁹⁰Y ²⁴¹Am	0.649 Bq/cm² 0.135 Bq/cm² 0.126 Bq/cm² 0.026 Bq/cm²

Foot Detectors
Detector	ZnS(Ag) scintillator with light-tight Hostaphan foil
Entrace window´s dimensions	150 mm x 370 mm
Sensitive area	555 cm²
Transmission protective grid	72 %
Typical background	α-channel β-channel	about 0.2 cps about 40 cps
Typical efficiencies (ISO 7503-1)	¹⁴C ³⁶Cl ⁹⁰Sr/⁹⁰Y ²⁴¹Am	21 % 54 % 43 % 19 %
Typical MDA (ISO 11929) with 10 s measuring time	¹⁴C ³⁶Cl ⁹⁰Sr/⁹⁰Y ²⁴¹Am	0.954 Bq/cm² 0.191 Bq/cm² 0.254 Bq/cm² 0.055 Bq/cm²

Ambient Conditions
Temperature range	- 5 °C to + 40 °C (operation)
Relative humidity	0 % to 90 % (no condensation)

Accessories

Accessories optional Ident. No.
Mobile Version Kit	for moveable version (LB 147)	52874
Transponder system (RFID)	for person identification	66164
Transponder Chip/Card	for transponder	59495/59503
Card reader	for person identification	66442
Magnetic card	for card reader	34481
Alarm column	Signalization of device status and contamination	65252
Calibration sources	³⁶Cl, approx. 1 kBq ²⁴¹Am, approx. 1 kBq	29336 25509
HFK-Program	Acquisition of measured data into Access-Database	UMAD HFK

Applications

The LB 147 is used in:

Radionuclide Laboratories
Nuclear Facilities
Environmental Measurement / Homeland Security
Nuclear Medicine
PET Facilities

Download

Brochure
		Format	Size
LB 147 / LB 148 Brochure	en	PDF	687.44 KB

News about this product

Insight into our enhanced personal contamination monitors

Today we will present you our enhanced version of the personal contamination monitors LB 147 and LB 148.

04.10.2017

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LB 147 Personal Contamination Monitor

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LB 148 Personal Contamination Monitor with back of hand measurement

News about this product

Insight into our enhanced personal contamination monitors

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