Dosimeters

The direct reading dosimeter is a rugged instrument which measures accumulated quantities of gamma and x-ray radiation. Applications include personal and environmental monitoring. The low energy feature has hospital applications including fluoroscopy, portable radiography, and angiography. This pocket size instrument is light weight, and has a sturdy clip to attach to an individual's pocket.


Model Number

Part Number

Range

AT-138

51-2936

0-200 mR

AT-138S

51-2937

0-2 mSv

AT-725

51-2939

0-5 R

ENERGY RESPONSE: 16 keV - 2 MeV
RADIATION DETECTED: Gamma and x-ray from 16 keV - 2 MeV
RANGES: 0 - 200 mR; 0-2 mSv; 0-5R
ENERGY RESPONSE:See response curve below
DETECTOR: Fiber electrometer mounted in an electrically conducting plastic ion chamber
DETECTOR HOUSING: Very low permeability plastics-hermetically sealed
ACCURACY: Within ±10% of true exposure
RATE RESPONSE: Dose rate independent for gamma and x-ray
ELECTRICAL LEAKAGE: Less than 0.5% of full scale for 24 hours at 50°C
TEMPERATURE RANGE: -20°C - +50°C
RELATIVE HUMIDITY: Up to 90%
DIMENSIONS: 4.5"(12.4cm)L X 0.6"(1.5cm) Diameter
WEIGHT: 1 oz (25 grams)
FINISH: Barrel and end caps: Natural matte black; Clip:Silver Metal

Meets ANSI Specifications N31.5 and N322
Low Leakage: Measures Background


Chargers

The Charger

The Charger can zero a variety of quartz and carbon fiber dosimeters by squeezing the lever of a piezoelectric generator. This unit does not require batteries.

Part No.: 51-2940

POWER: 15,000 volt piezoelectric generator
DISCHARGE BULB: Regulates voltage to 250 volts and provides flash to indicate the instrument is operational
CHARGING CONTACT: Gold Plated Brass
CLAMPING MECHANISM:Adjustable and self locking; Spring loaded (10 pounds pressure); Stainless Steel to prevent rusting
TEMPERATURE RANGE: Operating: -20°C - +50°C; Storage: -40°C - +60°C
RELATIVE HUMIDITY: Up to 90%
WEIGHT: 8.6 oz (254 grams)

MODEL 909

The 909 is a compact lightweight instrument designed to charge direct reading pocket dosimeters.

Part No.: 51-2938

POWER: 1 ea. "D" Cell battery
BATTERY LIFE: Capable of recharging dosimeters thousands of times.
SIZE: 4"(10.2 cm)W X 4"(10.2 cm)L X 3"(7.6 cm)H
WEIGHT:
8.6 oz (254 grams)

Ordering Info.

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