• Dosimeters


for X or Gamma rays radiation

The PEN200mR and PEN5R carbon fiber dosimeters are rugged, precision instruments.

Designed to satisfy military specifications for the RADIAC METER IM-264/PD and ANSI N13.5 and N322, the quality and reliability are greatly improved over other dosimeters of this type.

A high strength clip is used to attach the dosimeter to a pocket or any object to measure and directly read, at any time, accumulated dose or quantity of gamma and x-ray exposure. The PEN is hermetically sealed and immersion proof.



Exposure Range
  • PEN200 : 0 to 200mR (gamma and x-rays).
  • PEN5 : 0 to 5R (gamma and x-rays).
Accuracy ±10% of true dose for Cs-137 or Co-60 gamma.
Energy Dependence
  • PEN200 : ±10% maximum change in sensitivity for x and gamma ray energies from 30 keV to 1.25 MeV.
  • PEN5 : ±10% maximum change in sensitivity for x and gamma ray energies from 30 keV to 2 MeV.
Rate Response Dosimeters are dose rate independent.
Electrical Leakage In the absence of radiation, the dosimeters leakage or self discharge is less than 0.5% of full scale in 24 hours at 50°C. At 20°C dosimeters will read background radiation. After gross over exposure totaling up to 2000 R the leakage is less than 5% of full scale in 48 hours at 20°C. Thereafter, the leakage will decrease to original values.
Charging Voltage Dosimeters are capable of being charged to "zero" with 140 to 195 volts.
Weight Approx. 19 grams (0.7 oz.)
  • PEN200 : Length ; 11 cm (4.48 inches) - Diameter ; 1.5 cm (0.6 inches)
  • PEN5 : Length ; 11.5 cm (4.52 inches) - Diameter ; 1.5 cm (0.6 inches)
Materials Barrel - carbon fiber-filled high strength electrically conducting plastic with metal clip.


Optionnal characteristics

  • A maximum change in sensitivity of ±10% may occur under any probable combination of the following; A) Temperature range of -20°C to +50°C, B) Greater than 50,000 foot altitude for one month, C) 95% Relative humidity.
  • Highly ressitant to shock and vibration.


Cat. No. Description
SEPEN200-0 Carbon Fiber Pen Dosimeter 0-200 mR
SEPEN5-000 Carbon Fiber Pen Dosimeter 0-5 R


Chargeur pour dosimètre Modèle ''The Charger''

The patented, handheld Charger can charge a variety of direct-reading dosimeters by simply squeezing the lever of a generator. The Charger requires no batteries. By pulling a trigger, a dosimeter is easily placed in or removed from the charger. The clamping action holds the dosimeter for you. NSN# 6665-00-856-8813 - CD V-750 Model 6



Power 15,000 volt piezoelectric generator.
Discharge Bulb Flashes to indicate the instrument is operational.
Clamping Mechanism Spring loaded, adjustable and self locking.
All metal parts are stainless steel.
Temperature Range -20° to +50°C (-4° to +122°F).
Humidity Range 0 to 90% Relative Humidity.
Weight 243 g (8.6 oz.).
Size 152 x 108 x 22 mm (6 x 4.2 x .87 in.)
Limited Warranty 1 year limited warranty.