The advanced PENs are direct reading radiation dosimeters
They are rugged, precision instruments with a higher quality and reliability than other dosimeters of its type. They measure and directly read accumulated dose of gamma and x-ray exposure. A sturdy metal clip attaches the dosimeter to a pocket or any object to monitor total radiation exposure. They are hermetically sealed and immersion proof. PEN dosimeters are designed to satisfy military specifications for the RADIAC METER IM-264/PD and ANSI N 13.5 and N322 requirements.
Exposure Range (gamma and x-rays)
- PEN200mR Scale increments of 10mR
- PEN500mR Scale increments of 20mR
- PEN2R increments of 100 mR
- PEN5R increments of 200mR
- PEN20R increments of 1R
- PEN2mSv increments of .1mSv
- PEN5mSv increments of .2mSv
- National Stock Numbers Available
±10% maximum change in sensitivity for x and gamma ray energies from 16 keV to 6 MeV.
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.
±10% of true dose for Cs-137 or Co-60 gamma.
Dosimeters are capable of being charged to “zero” with 140 to 195 volts.
pen dosimeters meter view from insideA maximum change in sensitivity of ±10% may occur under any probable combination of the following:
A) Temperature range below -20°C (-4°F) or above +50°C (122°F)
B) Greater than 50,000 foot altitude for one month
C) Relative humidity greater than 95% Highly resistant to shock and vibration.
Dosimeters are dose rate independent.
Barrel – carbon fiber-filled, high-strength, electrically-conducting plastic with metal clip.
Protective sapphire lens, Dosimeter Charger Sold Separately
Approx. 19 grams (0.7 oz.)
PEN- 200, 500 2mSv, 5mSv Length: 11 cm (4.48 inches) Diameter: 1.5 cm (0.6 inches) PEN- 2, 5, 20 Length: 11.5 cm (4.52 inches) Diameter: 1.5 cm (0.6 inches)
2 year limited warranty