X-RAY COMPLIANCE TEST METER

Model # TBM-XR w/Built-in Detector
Model # TBM-EXR w/ Separable Probe

FEATURES:

* X-RAY MACHINES, TV, and MONITORS

* LUGGAGE and PEOPLE SCANNERS 

* ONE HAND OPERATION - Both Models 

* DIGITAL READOUT: 6 digit-rate, 6 digits integrate 

* SMALL LIGHTWEIGHT: 2-3 lbs 

* SEES AXIALLY BELOW 15 KeV GAMMA OR X-RAYS 

* FLAT RATE RESPONSE - AIR EQUIVALENT 

* SCINTILLATOR - 15 KeV - 500 KeV WIDE RANGE

APPLICATION: Model TBM-XR and TBM-EXR allow rapid, 
accurate compliance testing of a wide variety of X-Ray 
machines, TV's and computer monitors, luggage and 
people x-ray scanners. Protects the health and safety 
of airport and shipping personnel while they protect 
the public. The TBM-XR and TBM-EXR are now smaller and 
lighter. Based on newest, more stable, essentially 
drift-free electrometer technology.
 
DESCRIPTION: The TBM-XR and TBM-EXR consist of an 
air-equivalent organic scintillation probe 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 0.01 mR/h to 100.00 mR/h in one range. 
Dose range is 0.01 mR to 10 R.<Graphic file:tbmexrimga.jpg>

TBM-EXR

SPECIFICATIONS:

Detector: Air equivalent plastic scintillator.

Window: Light-tight 0.9 mg/cm$^{2}$ Mylar laminate. 10 sq cm 
area. 36 mm (1.4") dia.

Readout: LCD 8 digits

Indicator Light: Green LED 10 pulses/min per mR/h. 
Red LED Over-range Indicator.

Range: Rate  6 digits 0.1 mR/h to 999.9 R/h in one range.
Integrate  6 digits 0.01 mR to 99.9R.

Photon Energy Range: 15 KeV - 500 KeV ± 20%

High Voltage: Fully user adjustable (internal pot).

X-Ray Rep Rate: Use either rate or integrate mode for 
pulses with repetition rate of less than 1.5 sec. 
Use Integrate Mode for greater than 1.5 sec.

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


$Revision: 1.2 $

X-RAY COMPLIANCE TEST METER

Model # TBM-XR w/Built-in Detector
Model # TBM-EXR w/ Separable Probe

SPECIFICATIONS CONTINUED:

Electrometer: Solid State MOSFET input.

Electronics: Adj H. V. Supply, Pulse Shaper. A-D 
converter LCD drivers. Test and display functions.

Pulse Duration and Content: With sufficient repetitions, 
TBM-XR and TBM-EXR can accurately integrate pulses of 
less than a microsecond duration and longer and 
including continuous emission. Pulse content of 0.5 
nanoR are measurable with sufficient repetition rate to 
give at least .01 mR/hr for at least 5 to 10 seconds.

Environment: Temperature of Operation from -20$^{\textrm{o}}$ to 50$^{\textrm{o}}$ C
Relative Humidity 0 - 95% 
Radio-frequency 10 mW/cm$^{2}$ up to 4 GHz affects meter 
viewing < ± 10%
Magnetic 200 Gauss ± 5% effect
Geotropism < ± 2% effect

Response Time: 2-3 seconds for rate and for integrate.

Time to Zero: If count-rate goes to zero, the digital 
display will hold the old count for 12 seconds before 
displaying "0.0."

Batteries: Front panel battery test is provided.
6 ea. (AA) NEDA 15A - over 100 hrs of operation.

Dimensions: TBM-XR (excluding handle): 5.2"H x 4.2"W x 7.3"L
TBM-EXR (excluding handle, probe, & probe holder): 
3.2"H x 4.2"W x 7.3"L

Weight: TBM-XR complete with batteries and internal 
detector: 2.4 lbs.
TBM-EXR complete with batteries, external detector and 
probe holder: 3.0 lbs.

Options: Readout in Si units  nGy and nGy/h.
Ra-UBG - Check source.
Other entrance window material or thickness.
High voltage test button.
5 cm nylon positioning bumpers. 

<Graphic file:tbmexrimgb.ps>


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


$Revision: 1.2 $