ION CHAMBER TBM

Model # TBM-IC-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: 0.1 mR/hr to 9.999 R/hr
   

APPLICATION: Whenever a fast, sensitive ion chamber 
instrument is needed, the TBM-IC-MARK V is the latest 
in a series. The TBM-IC-MARK V ion chambers are now 
smaller and lighter. Based on newest more stable, 
essentially drift-free electrometer technology.
  
DESCRIPTION: The TBM-IC-MARK V consists of a 2.5" dia x 3.5"
 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 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/cm$^{2}$ 
graphite lined methacrylate walls accurate "air equivalence."
 Thin (0.5 mg/cm$^{2}$) Mylar window allows high sensitivity 
readings for alpha and for low energy beta such as C$^{\textrm{14}}$ in 
addition to higher energy Betas, Gammas and X-rays.<Graphic file:tbm-icmvimg.ps>

 
Figure 1: TBM-ICMark V

T$_{\textrm{A}}$                                   TECHNICAL ASSOCIATES                                   
------------------------------------------------------------------------------------------
  7051 ETON AVENUE * CANOGA PARK, CA 91303 TELEPHONE (818) 883-7043 * FAX(818) 883-6103   


$Revision: 1.3 $

ION CHAMBER TBM

Model # TBM-IC-MARK V

SPECIFICATIONS:

Detector: Free Air ion chamber 2.5" dia x 3.5" long. 
Internal volume 260 cc

Wall & Cap: Methacrylate, graphite lined 180 mg/cm$^{2}$ walls 
and 540 mg/cm$^{2}$ cap.

Window: 2.0" dia. x 0.5 mg/cm$^{2}$ Mylar.

Readout: LCD 8 digits.

Indicator Lamp: Green  LED 10 pulses/sec per mR/h
Red  Over-range Indicator

Range: 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.

Batteries: 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.


<Graphic file:tbm-ic-graph-02.ps>



T$_{\textrm{A}}$                                   TECHNICAL ASSOCIATES                                   
------------------------------------------------------------------------------------------
  7051 ETON AVENUE * CANOGA PARK, CA 91303 TELEPHONE (818) 883-7043 * FAX(818) 883-6103   


$Revision: 1.3 $