TBM IC Mark V Ion Chamber

  • Model: TBM-IC-MV


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The TBM-IC Mark V is an ion chamber radiation detector for alpha, beta, gamma, and x-ray radiation. The system is based on stable, mostly drift-free electrometer technology. The survey meter consists of a 2.5 inch diameter x 3.5 inch length air ion chamber coupled to a Mosfet input electrometer. The internal A to D converter displays directly in mR/h or mR. Rate range is 0.1 mR/h to 9.999 R/h in a single range. Dose range is 0.01mR - 99.9R in a single range. 180 mg/cm2 graphite lined methacrylate walls yield accurate air equivalence. The thin (0.5 mg/cm2) Mylar window allows high sensitivity readings for alpha and for low energy beta such as C14. Additionally, the ion chamber is sensitive to higher energy betas, gammas and X-rays.

• Digital Display: eight digit-rate, eight digit integration
• Dose Rate and Total Dose
• Lightweight
• Flat Response, Air Ion Chamber
• Detects axially below 5 KEV gamma or x-ray
• Detects Alpha, Beta, Gamma and X-ray
• Fast Response
• Wide Range: 0.1 mR/hr to 9.999 R/hr


Detector: Free Air ion chamber 2.5' inch diameter x 3.5 inch length. Internal volume 260 cc
Wall and Cap: Methacrylate, graphite lined 180 mg/cm2 walls and 540 mg/cm2 cap. Optional 1g/cm2 walls.
Window: 2.0'' dia. x 0.5 mg/cm2 Mylar.
Readout: LCD 8 digits.
Indicator Lamp: Green LED 10 pulses/sec per mR/h
Red Over-range Indicator
Rate 8 digit 0.1 mR/h to 9.999 R/h in a single range.
Integrate 8 digits 0.01 mR to 99.9R in a single range.
Electrometer: Solid State Mosfet input.
Electronics: A-D converter LCD drivers.
10 ea. (Button) NEDA CR-1220 - shelf life 7 years.
6 ea. (AA) NEDA 15A - 1000hr.
Dimensions: 5-1/2'' x 3-1/2'' x 8'' including handle.
Weight: 26 oz. complete with batteries.
Options: Readout in Si units: Sv and Sv/h.
X-Ray-SLV is optional X-Ray compliance sleeve with 10cm2 aperture.

This product was added to our catalog on Friday 30 June, 2017.


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