If you had one of those fancy blue-glowing watches that contain tritium, that'd be one.
More commonly, ionization type smoke detectors rely upon measuring the conductivity of an ionized path as an indicator of other ionization products such as smoke. These use Americium 241 as the steady producer of ionizing particles for the device. This is carefully contained as a compressed pellet of the highly-insoluble oxide, and contained in a metal container.
This still allows ingestion as a hazard for the determined, but rules out vapour or dust production by fire.
Smoke detectors
mobile/cell phones microwaves radiation power lines
Yes, unfortunately it is true because the way in which some cancers are treated is with radiotherapy. Radiotherapy is a form of ionising radiation like x-rays, and as a result, when that ionising radiation goes through your body, it does damage cancer cells, and it tends to damage cancer cells more than healthy tissue because cancer cells are more vulnerable to damage because they don't have such good DNA repair mechanisms. But the point is, it can still damage healthy tissue.And so, in the course of dealing with one tumour, it can increase the risk - it doesn't necessarily give you cancer - but it can increase the risk of developing another type of cancer. Very often, bone can be targeted or bone marrow cells, and therefore, you can get secondary tumours developing later in life as a consequence of having been treated.But if you take certain chemotherapy drugs, they don't necessarily have that same risk. They're not ionising radiation, so it depends on the kind of treatment that you get.
infrared radiation ;)<3
Ovens do not actually use radiation to heat food. "Ordinary" ovens simply use a high-resistance material as a heating element, which, when an electric current is run through, discharges a large amount of heat.
Smoke detectors
Some of the sun's rays are ionizing and some not. The portion that is not ionizing is the visible spectrum, anything with longer wavelength (infrared), and a bit of the ultraviolet spectrum. The shorter wave lengths are all ionizing.
Radio radiation is non-ionizing, meaning it does not have enough energy to remove electrons from atoms or molecules. This type of radiation is generally considered less harmful to human health compared to ionizing radiation.
Microwaves are non-ionizing electromagnetic radiation, which means they do not have enough energy to remove electrons from atoms or molecules. This makes them safer for everyday use compared to ionizing radiation like X-rays or gamma rays.
mobile/cell phones microwaves radiation power lines
The IR in IRMER stands for Ionising Radiation to which the regulation relates. MRI does not employ Ionising radiation so as far as I am aware the regulation doesn't apply to MRI.
Alpha particles are ionizing radiation because they have a positive charge and can remove electrons from atoms they interact with, causing ionization. This can damage living tissues if exposure is significant.
Because it emits ionising radiation
Radioactive elements.
heat or light from the sun, microwaves from an oven, X rays from an X-ray tube, and gamma rays from radioactive elements
Infrared radiation is non-ionizing, which means it does not have enough energy to remove electrons from atoms or molecules. It is considered low-energy electromagnetic radiation that can generate heat in tissues but does not have enough energy to cause ionization.
Ionising radiation from Alpha, Beta and Gamma emissions (from radioactive materials) are harmful to most organs of the body.