Radiation Counter

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Basic Radiation Counter
Imperial Sunburst-Sun-IISS-Traveller.gif
Sensor Device
Also see
Cost Cr250
Size 5.0 ltrs
Type Sensor Equipment
Tech Level TL–5
Weight 1.0 kg
Manufacturer Various
Radiation Counter
Also see
Cost Cr100
Size 0.5 ltrs
Type Sensor Equipment
Tech Level TL–8
Weight 0.2 kg
Manufacturer Various
Advanced Radiation Counter
Also see
Cost Cr100
Size 0.1 ltrs
Type Sensor Equipment
Tech Level TL–10
Weight 0.1 kg
Manufacturer Various

A Radiation Counter indicates the presence and intensity of radioactivity in the immediate vicinity.

Description / Specifications

A radiation counter is used to detect radioactive emissions, most commonly beta particles and gamma rays. It can be preset to give a warning signal if levels of radioactivity rise to dangerous levels. Readouts are given in specifics for (and in terms of danger to) the Sophont species that created the device: most commonly this readout is preset to safe human tolerances.


A radiation counter is generally set to ignore normal background radiation.

25 rad: lowest dose to cause clinically observable blood changes
200 rad: local dose for onset of erythema (reddened skin) in humans
400 rad: acute radiation syndrome in humans
1 krad: typical radiation tolerance of ordinary microchips
6 krad: typical radiotherapy dose, locally applied
10 krad: rapid fatal whole-body dose
1 Mrad: typical tolerance of radiation-hardened microchips

History & Background / Dossier

Radiation Counters are available from TL-5 onwards.

  • TL-6 models are the size of a liter bottle, TL-8 models are palm sized and TL-10+ models are the size of a wristwatch or less.
  • Battery life is around 200 hours for TL-8- models, and several weeks for higher TL models.

The Advanced Radiation Counter is a wrist-mounted version designed to be worn on the person or attached to the exterior of a Vacc Suit. They have a digital readout and can be connected to computers for data analysis of radiation exposure.

References & Contributors / Sources

This article was copied or excerpted from the following copyrighted sources and used under license from Far Future Enterprises or by permission of the author.