What is the name of the source of alpha radiation in a smoke alarm?
singleAnswer
radioisotope americium-241
Smoke detector
 source of alpha radiation in a smoke alarm
Americium-241 Smoke detector Alpha particle Alpha decay Americium Ionization chamber Nuclear technology Ionizing radiation Radionuclide Cloud chamber
Americium-241 (<sup>241</sup>Am, Am-241) is an isotope of americium. Like all isotopes of 
americium, it is radioactive, with a half-life of 432.2 years. ... It is commonly found 
in ionization type <b>smoke detectors</b> and is a potential fuel for ... Because of the low 
penetration of <b>alpha radiation</b>, americium-241 only poses a health risk when&nbsp;... The radioactive <b>source</b> emits <b>alpha particles</b> into both chambers, which ionizes 
some air molecules. There is a potential difference (voltage) between pairs of&nbsp;... <b>Alpha particles</b>, also called alpha rays or <b>alpha radiation</b>, consist of two protons 
and two ... Main article: <b>Alpha decay</b>. The best-known <b>source of alpha particles</b> is 
<b>alpha decay</b> of heavier (&gt; 106 u atomic weight) atoms. ... Some <b>smoke detectors</b> 
contain a small amount of the alpha emitter americium-241. The <b>alpha particles</b>&nbsp;... Smoke particles from fire that enter the chamber reduce the current, triggering the 
<b>smoke detector&#39;s</b> alarm. <b>Alpha decay</b> can provide a safe power <b>source</b> for&nbsp;... Americium is a synthetic radioactive chemical element with the symbol Am and 
atomic number ... It is widely used in commercial ionization chamber <b>smoke</b> 
<b>detectors</b>, as well as in neutron <b>sources</b> and industrial gauges. ... self-irradiation 
with <b>alpha particles</b>, which accumulates with time; this can <b>cause</b> a drift of some 
material&nbsp;... The ionization chamber is the simplest of all gas-filled radiation detectors, and is 
widely used for the detection and measurement of certain types of ionizing 
radiation; X-rays, gamma rays, and <b>beta particles</b>. ... The domestic <b>smoke</b> 
<b>detector</b> is a good example of this, where a natural flow of air through the 
chamber is&nbsp;... <b>Smoke detector</b>: An ionization <b>smoke detector</b> includes a tiny mass of radioactive 
americium-241, which is a <b>source of alpha radiation</b>. Two ionisation chambers&nbsp;... Ionizing radiation (ionising radiation) is radiation, traveling as a particle or 
electromagnetic ... Cosmic rays and the decay of radioactive isotopes are the 
primary <b>sources</b> of ... <b>Alpha radiation</b> is used in static eliminators and <b>smoke</b> 
<b>detectors</b>. A radionuclide is an atom that has excess nuclear energy, making it unstable. 
This excess ... More powerful gamma <b>sources</b> sterilise syringes and other 
medical ... (about 0.29 micrograms per <b>smoke detector</b>) in the form of americium 
dioxide. <sup>241</sup>Am is used as it emits <b>alpha particles</b> which ionize the air in the 
detector&#39;s&nbsp;... A cloud chamber, also known as a Wilson cloud chamber, is a particle detector 
used for ... An energetic charged particle (for example, an alpha or <b>beta particle</b>) 
interacts with the ... In each case, cosmic rays were the <b>source</b> of ionizing 
radiation. ... pH glass electrode &middot; Potentiometric sensor &middot; Redox electrode &middot; 
<b>Smoke detector</b>&nbsp;...
americium - 241
Smoke detector