Radioisotope electric propulsion | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-19

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator


00:01:01 1 History
00:05:04 2 Design
00:06:01 3 Fuels
00:06:10 3.1 Criteria for selection of isotopes
00:08:31 3.1.1 sup238/supPu
00:12:07 3.1.2 sup90/supSr
00:12:51 3.1.3 sup210/supPo
00:13:41 3.1.4 sup241/supAm
00:15:00 4 Life span
00:16:22 4.1 Multi-Mission Radioisotope Thermoelectric Generator
00:17:04 5 Efficiency
00:23:06 6 Safety
00:24:43 6.1 Radioactive contamination
00:24:52 6.2 Nuclear fission
00:33:25 7 Subcritical multiplicator RTG
00:34:39 8 RTG for interstellar probes
00:35:09 9 Electrostatic-boosted radioisotope heat sources
00:36:20 10 Models
00:36:46 10.1 Space
00:37:07 10.2 Terrestrial
00:37:54 10.3 Nuclear power systems in space
00:38:03 11 See also



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SUMMARY
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A radioisotope thermoelectric generator (RTG, RITEG) is an electrical generator that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect. This generator has no moving parts.
RTGs have been used as power sources in satellites, space probes, and unmanned remote facilities such as a series of lighthouses built by the former Soviet Union inside the Arctic Circle. RTGs are usually the most desirable power source for unmaintained situations that need a few hundred watts (or less) of power for durations too long for fuel cells, batteries, or generators to provide economically, and in places where solar cells are not practical. Safe use of RTGs requires containment of the radioisotopes long after the productive life of the unit. Notably, RTGs tend to be prohibitively expensive for most things they might otherwise find applications for.