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Title: RADIOACTIVE BATTERY

Abstract

A radioactive battery which includes a capsule containing the active material and a thermopile associated therewith is presented. The capsule is both a shield to stop the radiations and thereby make the battery safe to use, and an energy conventer. The intense radioactive decay taking place inside is converted to useful heat at the capsule surface. The heat is conducted to the hot thermojunctions of a thermopile. The cold junctions of the thermopile are thermally insulated from the heat source, so that a temperature difference occurs between the hot and cold junctions, causing an electrical current of a constant magnitude to flow.

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4184062
Patent Number(s):
US 2913510
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-007973
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
PHYSICS; BATTERIES; CAPSULES; CONVERSION; CURRENTS; DECAY; ENERGY; HEAT GENERATION; RADIOACTIVITY; SHIELDING; SURFACES; TEMPERATURE; THERMOCOUPLES

Citation Formats

Birden, J.H., and Jordan, K.C. RADIOACTIVE BATTERY. United States: N. p., 1959. Web.
Birden, J.H., & Jordan, K.C. RADIOACTIVE BATTERY. United States.
Birden, J.H., and Jordan, K.C. 1959. "RADIOACTIVE BATTERY". United States. doi:.
@article{osti_4184062,
title = {RADIOACTIVE BATTERY},
author = {Birden, J.H. and Jordan, K.C.},
abstractNote = {A radioactive battery which includes a capsule containing the active material and a thermopile associated therewith is presented. The capsule is both a shield to stop the radiations and thereby make the battery safe to use, and an energy conventer. The intense radioactive decay taking place inside is converted to useful heat at the capsule surface. The heat is conducted to the hot thermojunctions of a thermopile. The cold junctions of the thermopile are thermally insulated from the heat source, so that a temperature difference occurs between the hot and cold junctions, causing an electrical current of a constant magnitude to flow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1959,
month =
}
  • A compact and efficient radioactive battery was invented comprising a dielectric glass ampoule enclosed by a conductive casing and filler (e.g., powdered metal) and coated on its inner sunface with a conductive material such as silver. The dimensions of the assembly are such that electrons emitted by fluid radioactive material contained inside the ampoule pass through the ampoule to the casing but not beyond, and that backscatter secondary electrons from either casing or filler are prevented from passing back to the ampoule. In operation the electron emission causes electric current to flow from the casing to the ampoule coating. Themore » radioactive material Can be Kr/sup 85/ Cl/sup 36/ Xe/ sup 133/ etc. For Kr/sup 85/ this battery can build up an open-circuit equilibrium voltage of approximately 10,000 volts and deliver a current of approximately 1 m mu a for each curie. The dimensions of a configuration for Kr/ sup 85/ are given. (D.L.C.)« less
  • A compact, self-powered mechanoelectric transducer that can be combined with a phonograph pickup device or a microphone unit is described. The transducer uses a variable capacitance circuit with a radioactive d-c highvoltage source to impart an electric charge to the capacitive element. The voltage balance of the circuit is altered in accordance with movements of a vibration sensitive element to produce voltage output fluctuations that correspond in frequency and amplitude to those of the source of mechanical or acoustical vibrations. (C.E.S.)
  • A device is described that directly utilizes the electrical energy emitted from a gaseous or fluid radioactive material by collecting emitted electrons. The device is designed to function under extreme conditions of temperature and/or shock. (R.J.S.)