write four function of β_ray
Answers
Uses in Medicine
Radioisotopes -- chemicals that emit radiation -- are widely used in medicine. In a process known as brachytherapy, beta radioisotopes can be used to irradiate areas inside a patient to prevent the growth of certain tissues. This approach has been used successfully to prevent the clogging of arterial inserts called stents. Beta particles are also used in some forms of therapy to kill cancer cells. In addition, the emission of beta particles is used indirectly in the medical scanning technique known as positron emission tomography (PET).
Uses in Industry
Beta rays have a number of important uses in industrial processes. Since they can pass through some materials, they are used to gauge the thickness of films of material coming off production lines such as paper and plastic film. A similar process checks the integrity of sewn seams in textiles. In another application, the thickness of various coatings, such as paints, can be deduced from the amount of beta particles scattered back from that surface.
Tracers
Radioisotopes are commonly used as tracers in chemical and biological research. By synthesizing molecules containing a radioactive atom, the path and fate of that type of molecule in a particular reaction or metabolic process can be followed by tracking the radioactive signal of the isotope. One radioisotope used for this process is carbon-14 which can be inserted into organic or biological molecules and followed by its beta radiation signal.
Examples of some alpha emitters: radium, radon, uranium, thorium. Beta radiation is a light, short-range particle and is actually an ejected electron. Some characteristics of beta radiation are: ... Examples of these difficult-to-detect beta emitters are hydrogen-3 (tritium), carbon-14, and sulfur-35.