Highlights

General

  • Monitors radioactive gases such as Krypton-85, Argon-41, Xenon-133, Carbon-11 and Fluorine-18 in rooms
  • 1 to 4 large area proportional counter tubes, xenon sealed 
  • Measuremnt of beta- and beta+ (positrons) nuclides

Features

  • Integrated preamplifiers and high voltage generators
  • Measuring chamber with 11.45 l measuring volume

Additional Features

  • 2 cm lead shielding on all sides
  • Different data acquisition systems can be selected depending on the application: LB 115, LB 5340LB 9000

Product Overview

BAI 9109-4

 

  • The Beta-Gasmonitor BAI 9109-4 provides the opportunity to monitor radioactive gases such as Krypton-85, Argon-41, Xenon-133, Carbon-11 and Fluorine-18 in rooms and discharged air with low minimal detectable activities.
  • The sample air being measured will be directed via a prefilter by means of a pump disturbing particles within the sample air will be removed and the air will be directed to the measuring chamber.
  • The measuring chamber has a volume of 11.45 l and is equipped with a lead shield all sides with 2 cm thickness in 4π geometry to minimize the background as much as possible.

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BAI 9109 full size foto

Technical Data

Measuring Chamber

BAI 9109-4

 
Construction materialPVC
Volume11.45 l
Pumpmax. nominal flow rate through the vessel 15 m³/h
Lead Shield 
Type96 % Pb + 4 % Sb
Geometry4π – all sided with 2 cm thickness
Weightapprox. 185 kg (lead only)
Detector 
Typesealed xenon large area proportional counter tubes LB 6350-3
Sensitive detector area230 cm²
Measuring range1 kBq/m³ to 100 MBq/m³
Ambient Conditions 
Temperature

0°C to +40°C

Humidity10 % to 95 % (non-condensing)