PORTABLE RADON MONITOR

Model # TBM-IC-RN

FEATURES:

* DIGITAL READOUT: 
  6 Digits Rate,
  8 Digits Integrate

* 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

APPLICATION: Whenever a fast, sensitive Radon Detector 
is needed, the TBM-IC-RN detects 10 picoCi/l in 5 
seconds and detects public release level in less than 
10 minutes. This instrument is the latest in a series. 
The TBM-IC-RN ion chambers are now smaller and lighter 
and based on newest stable, essentially drift-free 
electrometer technology.
<Graphic file:tbm-ic-rn-imga.jpg>

 TBM-IC-RN

DESCRIPTION: The TBM-IC-RN consists of a 2.9" 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 a nanoCi/liter. Range 
is 10 picoCi/l to 1 $\mu $Ci/l. Ion Chamber walls are 180 
mg/cm2 graphite lined methacrylate walls and give 
accurate "air equivalence." Quick change Ion Chamber 
Shell allows conversion to TBM-IC-Survey Meter.
 
SPECIFICATIONS:

Detector: Free Air ion chamber 2.9" dia x 3.5" long. 
Internal volume 300 cc.

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

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


$Revision: 1.2 $

PORTABLE RADON MONITOR

Model # TBM-IC-RN

SPECIFICATIONS (Continued):

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 $\mu $Ci/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/m$^{\textrm{3}}$.

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.

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


$Revision: 1.2 $