TBM-IC-RN Ion Chamber for Radon Detection

The TBM-IC-RN Radon Detector detects 10 picoCi/l of radon in 5 seconds and detects public release level of radon in less than 10 minutes. These ion chambers are now smaller and lighter and based on newest stable, essentially drift-free electrometer technology. The radon detector consists of an air ion chamber (2.9" D x 3.5" L)  coupled to a stable solid state MOSFET input electrometer with built-in A to D converter to read out directly in  nCi/liter. Range is 10 picoCi/l to 1 µCi/l. Ion Chamber walls are 180 mg/cm2 graphite lined methacrylate walls and provide accurate "air equivalence."

Features:

• Digital Display:
      6 Digits Rate,
      8 Digits Integrate
• Compact and lightweight at 26 ounces
• TBM Package
• Flat Response
• Free Air Ion Chamber
• Detects axially below 5 KEV GAMMA OR X-RAY
• Detects alpha, beta, gamma
• Rapid Response
• Wide Range

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Specifications:

• Detector: Free Air ion chamber 2.9'' dia x 3.5'' long. Internal volume 300 cc.
• Wall & Cap: Methacrylate, graphite lined 180 mg/cm² walls and 540 mg/cm² cap.
• Readout: LCD: 6 Digits Rate; 8 Digits Integrate.
• Indicator Lamp:
      Green LED 10 pulses/sec per mR/h.
      Red Over-range Indicator.
• Range:
      Rate 6 digit 10 picoCi/liter to 1 µCi/liter in a single range.
      Integrate 8 digits 1 picoCi/liter* to 100,000 pCi/liter in a single range.
      *less than 1 minute Indicator.
      Note: TBM-IC-RN in Integrate Mode has no timer. User must provide clock or stopwatch.
• Electrometer: Solid State MOSFET input.
• Electronics: A-D converter LCD drivers.
• Batteries:
      10 ea. (Button) NEDA CR-1220 - shelf life 7 years.
      6 ea. (AA) NEDA 15A - 1000hr.
• Dimensions: 11" x 4" x 8" including handle and optional pump.
• Air Flow: Passive Diffusion or lightweight Battery powered pump.
• Weight: 26 oz. complete with batteries. Optional pump is 2 lbs.
• Options: Readout in Si units: Bq/m³.
• Optional Pump: Flow Rate: 4 SCFH. Batteries: 2 AA Batteries.

Working Level and Rn-222 Radon Gas vs. Radon Daughters:
 
Option 1: Particulate pre-filter removes much of the Radon daughters from the in-coming air stream but lets the Radon gas pass into the ion chamber for measurement.
 
Option 2: Activated charcoal pre-filter which stops much of the Radon gas is also available.

Automess

Ermes

WB Johnson

Ludlum

SE International

Spectech

Tech Associates

Direct Scientific  /  tel (310) 589 0601 /   Email

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