Description
Direct reading radiation dosimeters are the sophisticated PENs. Compared to other dosimeters of the same sort, they are tough, precise equipment with greater quality and dependability. Gamma and x-ray exposure cumulative dosage is measured and directly read.
To track overall radiation exposure, a radiation dosimeter is attached to any item or pocket with a strong metal clip. They are waterproof and hermetically sealed. ANSI N 13.5 and N322 criteria, as well as military specifications for the RADIAC METER IM-264/PD, are all satisfied by PEN dosimeters.
The radiation dosimeter accurately measures the radiation exposure that you have experienced.
Specifications
Direct-Reading Pen Dosimeter
| Specification |
Details |
| Exposure Range (Gamma & X-rays) |
PEN200 mR: 10 mR incrementsPEN500 mR: 20 mR incrementsPEN2 R: 100 mR incrementsPEN5 R: 200 mR incrementsPEN20 R: 1 R incrementsPEN2 mSv: 0.1 mSv incrementsPEN5 mSv: 0.2 mSv increments |
| National Stock Numbers |
Available |
| Energy Dependence |
±10% max change in sensitivity for X & gamma energies from 16 keV to 6 MeV |
| Electrical Leakage |
<0.5% of full scale in 24 hrs at 50°C (no radiation)Reads background radiation at 20°CAfter overexposure up to 2000 R: <5% of full scale in 48 hrs at 20°C, then decreases to original values

|
| Charging Voltage |
140 – 195 volts to charge dosimeter to “zero” |
| Operational Characteristics |
Max ±10% sensitivity change under any combination of:A) Temperature < -20°C or > +50°CB) Altitude > 50,000 ft for one monthC) Relative humidity > 95%Highly resistant to shock and vibration |
| Accuracy |
±10% of true dose for Cs-137 or Co-60 gamma |
| Rate Response |
Dose rate independent |
| Enclosure Material |
Barrel: carbon fiber-filled, high-strength, electrically-conducting plastic with metal clip |
| Weight |
Approx. 19 g (0.7 oz) |
| Size |
PEN-200 / 500 / 2mSv / 5mSv:Length 11 cm (4.48 in), Diameter 1.5 cm (0.6 in)PEN-2 / 5 / 20:Length 11.5 cm (4.52 in), Diameter 1.5 cm (0.6 in) |
| Options |
Protective sapphire lens |
| Warranty |
2 year limited warranty |
Dosi-Lite Pen Dosimeter Light
| Specification |
Details |
| Function |
Illuminates Direct-Reading Dosimeter for easy viewing in low-light conditions |
| Description |
LED enclosed in a thimble-shaped flexible plastic casing that slides onto dosimeter end |
| Operation |
User squeezes casing to complete circuit and light LED |
| Application |
Suitable for personnel working in low or inconvenient lighting conditions |
| Material |
Black PVC |
| Size |
0.6″ I.D. x 0.71″ O.D. x 1.64″ overall length |
| Weight |
0.5 oz |
| Power |
(2) A76 Alkaline batteries |
| Light Source |
Ultra Bright Green LED (water clear) |
| Battery Life |
In excess of 800 service hours |