Futures:
Simultaneous and separate α- and β-γ-measurement
Calibration factors for more than 50 nuclides
Calibration selectable according to ISO 7503-1 or related to activity on 100 cm² area
Protective grid with high transmission
Adjustable alarm thresholds
Acoustic alarm
RS232 interface
High sensitivity and uniform response
No counting gas required
Lightweight, easy to handle and rugged instrument
Wide temperature range
Functions
The LB 124 SCINT has an attractive and ergonomic design and due to its low weight it is easy to handle. Even under averse conditions, the measured results can be read easily on a large high-resolution display with background lighting.
A few directly accessible function keys suffice to operate the LB 124 SCINT. The instrument's surfaces can easily be decontaminated.
Different user profiles with different levels of complexity and access rights can be selected: Less experienced users may use the instrument as a simple, clearly structured system. For experienced users the software offers numerous functions and utilities, measurement modes and access to all parameters. Profiles can be configured password-protected and are pre-defined as EASY, STANDARD and EXPERT. The instrument has a large data memory and supports bi-directional communication via RS232. Program download and data transfer to a PC or printer are possible.
Specifications:
Display | Monochrome LCD 192 x 64 pixel Electro-luminescence illumination |
| Radiation detector | ZnS: Ag scintillator |
| Detection of light | Photomultiplier (PMT) |
| Measurement modes | α- and β-γ-measurement, simultaneous and separate, ratemeter, scaler-timer-mode, clearance measurement, half-life measurement, survey mode |
| Entrance window’s dimensions | 118 mm × 145 mm |
| Sensitive area | 170 cm² |
| Entrance window’s material | 6 μm Plastic metallized (0.4 mg/cm²) |
| Protective Grid | 80 % Transmission |
| External dimensions | 240 mm × 140 mm × 110 mm (L x W x H) |
| Weight | 1300 g (with batteries) |
| Alarm | Acoustic with adjustable alarm thresholds |
| Data memory | 1000 measured values with date & time |
| Serial interface | RS232 |
| Power supply | 3 × C size batteries LR14 alkaline 1.5 V or |
| Max. operating time (without illumination) | > 50 h with alkaline batteries 7.8 Ah |
| Temperature range | -20 °C to +40 °C (operation) -40 °C to +60 °C (storage) |
| Relative humidity | 0 % to 80 % (no condensation) |
| External pressure | 500 to 1300 hPa (operation) 100 to 1300 hPa (storage/transport) |
| Protection class | IP 53 (according to IEC 60529) |
| 14C | 11 % | (β-γ-channel) |
| 36Cl | 44 % | (β-γ-channel) |
| 60Co | 29 % | (β-γ-channel) |
| 137Cs | 43 % | (β-γ-channel) |
| 241Am | 21 % | (α-channel) |
| Background | approx. 0.1 cps approx. 10 cps | (α-channel) (β-γ-channel) |
| Gamma sensitivity at 1 µSv/h (137Cs) | not detectable < 100 cps | (α-channel) (β-γ-channel) |
| Spillover | < 20 % < 2 x 10-5 | (α- to β-γ-channel with 210Po) (β-γ- to α-channel with 90Sr) |
| Measuring range (Dead time < 10 %) | 0 to 5.000 cps 0 to 50.000 cps | (α-channel) (β-γ-channel) |
| Overrange indication | at rates > 50.000 cps | |
| Suface response uniformity | max. ± 20 % | (α-channel with 241Am, β-γ-channel with 14C point sources) |