what what element do they use in smoke detectors

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Americium in Ionization Smoke Detectors | US EPA

Some smoke detectors use very small amounts of radioactive material to detect smoke. While they are safe to use in your home, never tamper …

Americium – Wikipedia

Americium is used in the most common type of household smoke detector, which uses 241Am in the form of americium dioxide as its source of ionizing radiation.

Will smoke detectors cause radiation poisoning?

12 Mar 2018 Ionization chamber smoke detectors contain a small amount of americium-241, a radioactive material. Smoke particles disrupt the low, steady …

The Facts About Smoke Detector Radiation from Americium 241

Learn about Americium 241, an element found in ionization and dual-sensor smoke … Because they use Americium 241, ionization smoke detectors are the most …

Backgrounder On Smoke Detectors | NRC.gov

Smoke detectors have saved thousands of lives since they came into use in the 1960s. Ionization chamber smoke detectors, the most common type, use radiation …

Americium Smoke Detectors

16 Feb 2011 These two technologies are best used in tandem, since they are sensitive to different-sized smoke particles. [1] The ionization type is …

Your household smoke detectors – Canadian Nuclear Safety …

12 Jun 2019 How do they work? There are two primary technologies used in smoke detectors. · Radioactive properties. Most household detectors contain a very …

How Do Smoke Detectors Work? | Vivint

25 May 2018 The oldest form of firedetection device is a heat detector. It functions simply with a detection element inside the device that activates when …

smoke detector | Britannica

The other photoelectric detector, widely used in private dwellings, employs a detection chamber shaped so that the light-sensitive element cannot ordinarily “ …

What are some radioactive elements used in smoke detectors

Americium 241 is used in smoke detectors because it is a strong alpha particle emitter. Alpha particles are the weakest kind of radioactive decay, …

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