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Americium become to be largely used in smoke detectors after 1970.
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∙ 9y ago
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Is americium poison?
Americium is radioactive: The radiation from exposure to americium is the primary cause of health effects from absorbed americium. Americium moves rapidly through the body after uptake and is concentrated within the bones for a long period of time. During this storage americium will slowly decay and release radioactive particles and rays. These rays can cause alteration of genetic materials and bone cancers. Damage to organs due to americium exposure is highly unlikely for humans, because americium is accumulated in organs only a short period of time.
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it stays in your system for a month no matter how much you smoke.
Is burning aluminum smoke toxic?
How dangerous are the fumes for what period of time and how long should we ... resins, which release virtually no smoke or fumes when burned.
How long is weed in your urine if you smoke once a week?
It could stay in your system anywhere from a week to 3 months depending on your build and how much you smoke.
Explain why americium-241 would be an ideal isotope to use in a smoke detector?
Alpha particles from americium ionized the air. An air with smoke has a different ionization, ionization currents which are also different are measured, compared and the detector (which is before calibrated) is ready !
Americium-241 is used in some smoke detectors It is an alpha emitter with a half-life of 432 How long will it take in years for 31.0 of an Am-241 sample to decay?
288
Why the Americium is used in smoke detectors?
In the smoke detector, the fast - moving alpha particles enable the air to conduct an electric current. As long as the electric current is flowing, the smoke detector is silent. The alarm is triggered when the flow of electric current is interrupted by smoke entering the detector.
Using BRK Smoke Detectors to Protect Your Investments?
BRK Smoke Detectors have long been recognized as one of the top brands when it comes to smoke detectors and many other types of gas detectors. Because of their tried and tested construction, BRK smoke detectors are able to stand up to years of abuse without having to undergo a whole lot of maintenance to stay in working order. This is why many companies tend to use BRK smoke detectors when they need to cover a large area of industrial use with a smoke detector that is guaranteed to provide years of carefree service. If BRK smoke detectors are trusted for this, they can be trusted for anything.
Do smoke detectors detect ciggarette smoke?
smoke...The reason that sometimes we cannot see smoke is because of the very tiny "particulates" that make up the smoke. A good smoke detector mwill sense smoke long before it can be seen. It is particles in air that are very very small that a smoke detector detects.
When did all primordial americium decay?
Because americium isotopes have not very long half lives any possible (probable) primordial americium disappeared many time ago.
Is americium poison?
Americium is radioactive: The radiation from exposure to americium is the primary cause of health effects from absorbed americium. Americium moves rapidly through the body after uptake and is concentrated within the bones for a long period of time. During this storage americium will slowly decay and release radioactive particles and rays. These rays can cause alteration of genetic materials and bone cancers. Damage to organs due to americium exposure is highly unlikely for humans, because americium is accumulated in organs only a short period of time.
Why do astrinomers use visible light?
For a long time, that was the only means available to them. It's only been comparatively recently that we've had instruments able to detect and measure radio waves from space, or ways to hoist infra-red detectors, ultraviolet detectors, x-ray detectors, and gamma ray detectors up above the atmosphere.
Are smoke alarms radioactive?
Most smoke alarms use Americium-241 to detect smoke and hot air, thus triggering the alarm. Some gamma radiation is emitted by the smoke alarm but all the alpha radiation is blocked by the black box. Living for a year within 1 metre of a smoke alarm would give you a radiation dose of 1.5 millimeters per year, which is about 1/1000th of the radiation that we receive normally. If you held a smoke alarm in your hand then you would get a significant dose, but you're not going to do that are you? The Americium is chosen because of it's very high melting point (it's designed to work in a fire). Even in a house fire, the material will not melt and would not be a health hazard. But there are some safety things to remember - Never hold a smoke alarm in your hand to long - Never attempt to disassemble the radioactive elements housing or damage it as will release radiation still capable of causing a health hazard
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What use is alpha radiation?
It is used in smoke detectors as it cannot travel far in air. Alpha radiation is emitted and as long as the detector in the device is receiving the alpha radiation, then no smoke is present. When smoke particles are present, they interrupt the radiation, and so the detector doesn't pick up the radiation, causing the alarm to go off.
What brand of motion detectors have the the greatest range?
There are many levels of long range motion detectors, personal use and commercial use. Some motion detectors can detect movement up to 8-10 miles away. Some good brands for long range motion detectors are Honeywell and KNX.
