what is the name of the source of alpha radiation in a smoke alarm
Smoke detector The americium-241 in ionizing smoke detectors poses a potential environmental hazard, albeit a very small one. Disposal regulations and recommendations for smoke detectors vary from region to region.[21][22] The amount of radioactive material contained in ionizing smoke detectors is very small and thus doesn't represent a significant radiological hazard. If the americium is left in the ionization chamber of the alarm the radiological risk is insignificant because the chamber acts as a shield to the alpha radiation. A person would have to open the sealed chamber and ingest or inhale the americium for the risk to be significant. The radiation risk of exposure to an ionic smoke detector is much smaller than natural background radiation under normal operation.
Pulse Pressure waves generated by the heart in systole move the arterial walls. Forward movement of blood occurs when the boundaries are pliable and compliant. These properties form enough to create a palpable pressure wave.
Dolores O'Riordan The cause of death was not immediately made public;[55] police said it was not being treated as suspicious.[56] The coroner's office said the results of its inquiry would not be released until April at the earliest.[57]
Aubrey Woods Aubrey Harold Woods (9 April 1928 â€“ 7 May 2013)[1][2] was a British actor and singer.