Difference between revisions of "Rad (metric)"
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Effects on health are observed only beyond 10 rads (100 mSv), though long term exposure to substantially lower levels of radiation still presents a severe risk to health. It takes a dose of hundreds of rads to cause injuries that can be fatal in the short term. | Effects on health are observed only beyond 10 rads (100 mSv), though long term exposure to substantially lower levels of radiation still presents a severe risk to health. It takes a dose of hundreds of rads to cause injuries that can be fatal in the short term. | ||
| + | The rad was first defined as a unit of measurement on [[Terra (world)|Terra]] prior to the foundation of the [[Terran Confederation]]. Technologists found the rad useful as the concept of the [[Technology Level]] and standardized ideas about [[sophont]] society development began to take form.{{Unpublished cite|author= Maksim-Smelchak }} | ||
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| + | === Generalized Rad Level Table === | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
| − | | | + | !colspan="2"|Rad Levels |
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! Exposure | ! Exposure | ||
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== References & Contributors ([[Sources]]) == | == References & Contributors ([[Sources]]) == | ||
Revision as of 16:14, 1 March 2019
A rad is a unit of measurement of radiation.
Description (Specifications)
A unit of absorbed dose of ionizing radiation equal to an energy of 0.1 newtons per gram of irradiated material.
- 1 rad is equal to 10 millisieverts
- The common Imperial usage is simply rad: the name is short enough to make an abbreviation unnecessary.
The rad is related to the millisievert, a unit measuring the radiation dose defined as that producing the same biologic effect in a specified tissue as 1 gray of high-energy x-rays received either from a radioactive source or from other sources such as medical procedures.
- A millisievert is generally a whole body effective dose, but it may also be an equivalent dose received by a particular tissue or organ.
- The common Imperial abbreviation is mSv.
A Radiation Counter is able to measure the local ambient radiation levels.
Term Usage Example
A Fission power plant may produce hundreds of rads per hour.
History & Background (Dossier)
Effects on health are observed only beyond 10 rads (100 mSv), though long term exposure to substantially lower levels of radiation still presents a severe risk to health. It takes a dose of hundreds of rads to cause injuries that can be fatal in the short term.
The rad was first defined as a unit of measurement on Terra prior to the foundation of the Terran Confederation. Technologists found the rad useful as the concept of the Technology Level and standardized ideas about sophont society development began to take form.[1]
Generalized Rad Level Table
| Rad Levels | |
|---|---|
| Exposure | Effect |
| 0.001 rads / hour | Dental x-ray |
| 0.01 rads / hour | cChest x-ray |
| 10 rads / hour | Radiation sickness, nausea, eventual recovery likely |
| 1000 rads / hour | Organ failure, death within hours |
References & Contributors (Sources)
- Frank Chadwick, Dave Nilsen. Fire, Fusion, & Steel (Game Designers Workshop, 1994), 5.
- David Golden, Guy Garnett. Fire, Fusion & Steel (Imperium Games, 1997), 7.
- Marc Miller. T5 Core Rules (Far Future Enterprises, 2013), 615.
- Traveller Wiki Editorial Team
- Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science
- ↑ Information provided to the library by Maksim-Smelchak