LB 150D-R – Alpha/Beta Fixed Filter Monitor
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Service & reparation Request a quote- Simultaneous Measurement of α and β
- Compensation of Rn/Th daughters
- 3-fold large surface proportional counter
- Prompt measurement of the activity deposited
- High sample air flow (up to 40m³/h)
- Collection of airborne particulates on a 200 mm Ø glass fiber filter
- Continuous measurement and alarm threshold monitoring during while sampling
The α-β-particulates monitor LB 150 D-R with a fixed filter and true real time monitor while collection, detection and evaluation are done simultaneously. The very high sampling rate of 40 m³/h ensures a representative sampling for both stack monitoring with isokinetic extraction as well as room or workplace air monitoring.
Options;
17012 – Optional 5 cm lead shielding
5952 – Glass Fiber Filter GF 8, Ø 200 mm, 100 pieces
Data sheet
Contact
Göran Jonsson
- Sales - Radiation Detection
- Phone: +46 (0)18-566820
- Mobile: +46 (0)70-6220407
- goran.jonsson@gammadata.se
Technical specification
Pump: Silent Turbine Pump type SV 5.130/2 max. 40 m³/h flow rate
Filter disk: Glas fiber filter; Ø 200 mm or equivalent
Temperature: 0 to + 50°C
Sample air temperature: up to 85°C
Relative humidity: max. 95%
Sample air pressure: 0.7 to 1.2 bar
Detector Type: 3-fold proportional counter tube GFDZ 200 in sandwich construction
Lead shield: 4-pi 2 cm (5 cm optional)
Counting gas: Propane P-10 or Ar-CO2 90/10
Gas consumption approx. 2 l/h
Background:
– Alpha: ~0.7 cps
– Alpha/Beta: ~2.5 cps
– Guard: ~5 cps
Measuring range: alpha 29kcps (equiv. to 143kBq on filter), beta 145kcps (equiv. to 735kBq on filter)
Radon compensation: Yes, effectiv to 500 Bq on filter
Efficiencies: See datasheet
Noble Gas influence: Kr-85 ~ 24.8 kBq/m³/cps, Xe-133 ~ 69.0 kBq/m³/cps
Detection Limits w/o radon: Alpha = 0.003 Bq/m³, Beta = 0.02 Bq/m³
Detection Limits w radon: Alpha = 0.25 Bq/m³, Beta = 0.4 Bq/m³
