If you are referring to beta thickness gauging, an isotope emitting beta radiation is used. Sources commonly used include Promethium-147, Strontium-90 and Krypton-85. The source is usually enclosed in a protective cover, but I would keep my distance from it if I were you.
Alpha radiation is a type of nuclear radiation that consists of helium nuclei (two protons and two neutrons). It has low penetrating power and can be stopped by a piece of paper or clothing. However, it can be harmful if ingested or inhaled, as it can damage living tissue and increase the risk of cancer.
Other than visible light used to scan the original to be copied, some heat, and the kind of very low and extremely low frequency electromagnetic radiation emitted by all electrical devices, photocopiers do not emit radiation.
Ultraviolet Electromagnetic Radiation
Alpha Radiation ( α ) – Least penetration. Will be blocked by a single sheet of paper. Beta Radiation ( β ) – More penetration than alpha. Blocked by a few mms aluminium. Gamma Radiation ( µ ) – Strong penetration. Needs a least a few inches of lead to block.
Conduction, Convection, Radiation
beta radiation used in this paper thickness equipment because alpha and gamma are very strong radiation which can not be used for paper thickness equipment such as paper are used by every one and it could cause radiation if other nuclear radiation like alpha and gamma are used.
A standard piece of paper will not provide significant protection from radiation. Special types of radiation-blocking materials, such as lead or concrete, are typically used for shielding against radiation.
Very thin, flimsy paper, that may slip passing through the rollers. Very obsorbent paper unless you want the blotted effect. Cardboard that may be too thick to bend around the rollers. These are just three types that spring to mind.
Calendars in papermaking refer to machines that smooth and compress the paper surface, improving the paper's finish and properties like gloss and smoothness. These machines use a series of rollers to achieve this and are typically found at the end of the papermaking process before the paper is cut and packaged.
Beta radiation is used in paper making to measure the density and thickness of paper. By passing beta radiation through the paper, it can detect variations in the paper's properties, helping to ensure quality control during the production process. This technology is non-destructive and provides real-time feedback for adjustments in the manufacturing process.
Paper towels
Paper towels
Fusing oil is used as a release agent in xerographic printers. Toner is fused to the paper when it moves between heated pressure rollers. The fusing oil is lightly applied to ensure that the paper will not stick to the rollers and will readily release for deposit in the output bin.
Heated hair rollers are used to curl hair. Having the rollers heated makes it easier and quicker to curl hair. You can purchase these rollers online at the Amazon website.
Steam rollers haven't been used for over 75 years. Most rollers now are driven by diesel engines.
I have found no reason on the internet why off-set paper could not be used in a laser or inkjet printer. The paper needs to be of a suitable size, has a surface able to take print, and is thin enough to bend around the printer's internal rollers.
heat rollers wich are you heat to create cuerl velcro rollers can be use on wet or dry hair normalk rollers used on wet hair