Americium-241 (241Am, 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.

Americium-241 is a potentially dangerous isotope if it is taken into the body in soluble form. It decays by both alpha activity and gamma emissions and it would concentrate in the skeleton and liver.

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.

2024年4月17日 · 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.

2025年2月5日 · 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.

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.

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.

2021年3月4日 · 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 is formed in the environment by the decay of plutonium contamination from nuclear weapons production and testing. Americium-241 is an unstable isotope. As americium decays, it releases radiation and forms “daughter” elements.

Americium-241 (Am-241) is a radioactive isotope of americium with a half-life of approximately 432.2 years. It primarily undergoes alpha decay, emitting alpha particles and low-energy gamma radiation.