HIGH RANGE ION CHAMBER TBM

Model # TBM-ICH2-MARK V

FEATURES: DIGITAL READOUT: 8 digit-rate, 8 digits integrate DOSE RATE & TOTAL DOSE READ OUT SMALL LIGHTWEIGHT 26 oz. TBM PACKAGE FLAT RESPONSE - FREE AIR ION CHAMBER SEES AXIALLY BELOW 5 KEV GAMMA OR X-RAY SEES ALPHA, BETA, GAMMA, X-RAY FAST RESPONSE WIDE RANGE: 2 mR/hr to 200 R/hr APPLICATION: Whenever a fast, sensitive ion chamber instrument is needed, the TBM-ICH2-MARK V is the latest in a series. The TBM-ICH2-MARK V ion chambers are now smaller and lighter. Based on newest more stable, essentially drift-free electrometer technology. DESCRIPTION: The TBM-ICH2-MARK V consists of a 2.5'' dia x 5'' long air ion chamber coupled to a stable solid state MOSFET input electrometer with built in A to D converter to read out directly in mR/h or mR. Rate Range is 2 mR/h to 200 R/h in a single range. Dose Range is 2 mR - 10,000 R in a single range. The ion chamber's 180 mg/cm2 graphite lined methacrylate walls give accurate ``air equivalence.'' Thin (0.5 mg/cm2) Mylar window allows high sensitivity readings for alpha and for low energy beta such as C14 in addition to higher energy Betas, Gammas and X-rays.

Figure 1: TBM-ICH2-MARK V

^T_A  TECHNICAL ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE (818) 883-7043 * FAX(818) 883-6103
e-mail: tagold@nwc.net     www.tech-associates.com

HIGH RANGE ION CHAMBER TBM

Model # TBM-ICH2-MARK V

SPECIFICATIONS:

• Detector: Free Air ion chamber 2.5'' dia x 5'' long. Internal volume 260 cc.
• Wall & Cap: Methacrylate, graphite lined 180 mg/cm² walls and 540 mg/cm² cap.
• 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
• Range:
      Rate 8 digit 2 mR/h to 200 R/h in a single range.
      Integrate 8 digits 2 mR to 10,000 R in a single range.
• Electrometer: Solid State MOSFET input.
• Electronics: A-D converter LCD drivers.
• Batteries:
      25 ea. (Button) NEDA CR-1220 - shelf life 7 years.
      6 ea. (AA) NEDA 15A - 1000hr.
• Dimensions: 5-1/2'' x 3-1/2'' x 10'' including handle.
• Weight: 28 oz. complete with batteries.
• Options: Readout in Si units: Sv and Sv/h.

^T_A  TECHNICAL ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE (818) 883-7043 * FAX(818) 883-6103
e-mail: tagold@nwc.net     www.tech-associates.com