The Brochure of the LB 147/LB 148 Personal Contamination Monitor
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General
- High sensitivity and uniform response
- Simple operation with graphic display and touch display
- Voice output in different languages
- Permanent data memory for 10,000 measurement data points
- Removable hand probe for clothing measurements
SCINT Technology
- Unique simultaneous and separate measurement of α and β-y radiation
- The individual types of radiation can be distinguished by means of special evaluation and correlation circuits, and thus separated and measured at the same time
- High sensitivity even at low energies
- No counting gas required
Different Versions
- Slim version (LB 147 Slim)
- Enhanced alpha sensitivity (LB 147 Alpha Sense)
- Simultaneous measurement of the front and back of the hand (LB 148)
Different versions
LB 147
The LB 147 has a removable hand probe for clothing measurements
Innovative scintillation technology for radiation protection
Robust design
Removable hand probe for clothing measurement
No counting gas required
Simultaneous separate measurement of α and β-γ radiation
LB 148
Simultaneous back-of-hand measurement with automatically tracked back-of-hand probe for optimum measurement geometry
Self-adjusting back of hand detectors
Time efficient measurement
Dual password hierarchy
Simple operation with graphic display and touch panel
Interfaces on the back side of the LB 148
LB 147 & LB 148 Alpha Sense
High efficiency and thus extremely low detection limits for alpha radiation
Specially designed protection grids
LB 147 Alpha Sense also available as Slim version
PRODUCT COMPARISON TABLE
LB 147 | LB 147 Slim | LB 148 | Alpha Sense | |
|---|---|---|---|---|
ZnS detector | ✓ | ✓ | ✓ | ✓ |
Number of detectors | 4 | 4 | 6 | 4 / 6 |
| Removable hand probe for clothing measurements | ✓ | ✓ | ✓ | ✓ |
Weight (approx. in kg) | 35 | 35 | 45 | 35 / 45 |
Dimensions (without alarm tower) | 65 x 125 x 80 | 45 x 125 x 90 | 85 x 125 x 82 | 240 x 140 x 110 |
Interfaces | USB, Ethernet, RS232, RS485 | USB, Ethernet, RS232, RS485 | USB, Ethernet, RS232, RS485 | USB, Ethernet, RS232, RS485 |
Mobile set (fixed rollers) | opt. | opt. | ✓ | opt. / ✓ |
Hand Detectors
Detector | ZnS(Ag) scintillator with light-tight Hostaphan foil |
Dimensions entrance window | 150 mm x 230 mm |
Senstive area | 345 cm2 |
Typical background |
|
α-channel | approx. 0.1 cps |
β-channel | approx. 15 cps |
Typical efficiencies (ISO 7503-1)
| LB 147 / LB 148 | Alpha Sense Version |
14C | 20 % | 25 % |
36Cl | 49 % | 70 % |
90Sr / 90Y | 52 % | 66 % |
241Am | 33 % | 43 % |
Typical detection limits (ISO 7503-1) with 10 s measuring time in Bq/cm2
| LB 147 / LB 148 | Alpha Sense Version |
14C | 0.649 | 0.460 |
36Cl | 0.135 | 0.078 |
90Sr / 90Y | 0.126 | 0.088 |
241Am | 0.026 | 0.019 |
Foot Detectors
Detector | ZnS(Ag) scintillator with light-tight Hostaphan foil | ||
Dimensions entrance window | 150 mm x 370 mm | ||
Senstive area | 555 cm2 | ||
Typical background |
| ||
α-channel | approx. 0.2 cps | ||
β-channel | approx. 40 cps | ||
Typical efficiencies (ISO 7503-1)
| LB 147 / LB 148 | Alpha Sense Version |
14C | 21 % | 21% |
36Cl | 54 % | 71 % |
90Sr / 90Y | 43 % | 64 % |
241Am | 19 % | 40 % |
Typical detection limits (ISO 7503-1) with 10 s measuring time in Bq/cm2
| LB 147 / LB 148 | Alpha Sense Version |
14C | 0.954 | 0.961 |
36Cl | 0.191 | 0.137 |
90Sr / 90Y | 0.254 | 0.153 |
241Am | 0.055 | 0.026 |