
Americium-241 - Wikipedia
Americium-241 (241 Am, Am-241) is an isotope of americium. Like all isotopes of americium, it is radioactive, with a half-life of 432.2 years. 241 Am is the most common isotope of americium as well as the most prevalent isotope of americium in nuclear waste.
Radionuclide Basics: Americium-241 - US EPA
Feb 5, 2025 · Americium-241 is the most common form of Americium. On this page: Am-241 found in the environment is in the form of microscopic dust. When released into air, americium deposits particles in the soil and water. Small particles in air can travel far from the release site.
Americium-241 | Radiation Emergencies | CDC
Apr 17, 2024 · Americium-241 (Am-241) is a manmade metal found in the environment in the form of microscopic dust. As a dust or fine powder, Am-241 can cause certain cancers. Am-241 concentrates in the bones, liver, and muscles, exposing these organs to alpha particles. Half-life: 432.2 years. Mode of decay: Alpha particles and weak gamma radiation.
Americium-241 - isotopic data and properties - ChemLin
Americium-241 is the artificial radioisotope of the element Americium, whose atomic nucleus has 146 neutrons in addition to the element-specific 95 protons, resulting in a mass number of 241: 241 Am. See also: list of Americium isotopes. Half-life T ½ = 432.6 (6) a respectively 1.36425 × 1010 seconds s.
Americium is a man-made radioactive metal that exists as a solid under normal conditions. Americium is produced when plutonium absorbs neutrons in nuclear reactors and nuclear weapons tests. Americium occurs in several forms called isotopes. The most common isotope is americium-241. What are the uses of americium-241?
Americium-241: Domestic U.S. Supply Available - Isotope
Mar 4, 2021 · Did you know that for the last 20 years Americans have relied on a single foreign supplier for the active ingredient used in smoke detectors? The DOE Isotope Program has addressed this isotope shortage and is pleased to announce the re-established routine supply of americium-241 (Am-241).
Americium-241 Half-Life, Decay, Uses, Smoke Detector, MSDS
What is Americium-241? Americium-241 is a radioactive substance that principally emits Alpha rays. It is one of the most important and useful isotopes of Americium or Am.
The Facts About Smoke Detector Radiation from Americium 241 …
Learn about Americium 241, an element found in ionization and dual-sensor smoke detectors. The two most commonly recognized smoke detection technologies are ionization smoke detection and photoelectric smoke detection.
Americium-241 is a by-product of nuclear weapons detonations (decay of 241Pu) and is found in the environment due to the fallout of 241Pu from nuclear weapons testing. IS AMERICIUM-241 HAZARDOUS? The main pathways of exposure from Amercium-241 are inhalation and ingestion.
Radionuclide Basics: Americium-241 | Radiation Protection - US EPA
Jan 5, 2017 · Americium (chemical symbol Am) is a man-made radioactive metal that is solid under normal conditions. Americium is produced when plutonium absorbs neutrons in nuclear reactors or during nuclear weapons tests. Americium-241 is the most common form of Americium.