Isotopes are variants of a particular chemical element which are the same in proton number but differ in neutron number. In nature, naturally occurring isotope is called natural isotope, synthetic isotope is called man-made isotope and the isotope exists radioactive is called radioisotope. The term of "isotope" in "tungsten alloy isotope radiation shielding" refers to a radioisotope. All chemical elements have radioisotopes which both occur naturally and are artificially made using nuclear reactors, cyclotrons or particle accelerators. A radioisotope is an atom that has excess nuclear energy, making it unstable. So it can emit α rays,β rays andγ rays spontaneously by a radioactive decay. Generally, the speed of a radioactive decay is not affected by the temperature, pressure and electromagnetic field of environment, and not by the status of elements, just related to time. Because the rays released from the decay of radioisotopes can do harm to human to a certain extent and cause some diseases. It is necessary to use tungsten alloy radiation isotope radiation shielding to shield these rays.
Radioisotope is used in many fields. In biology, radioisotopes of carbon can be used as radioactive tracers; in nuclear medicine, radioisotopes are used for medical diagnosis, treatment and research; in biochemistry and genetics, radioisotopes label molecules and allow tracing chemical and physiological processes occurring in living organisms; in food preservation, radioisotope is used to stop the sprouting of root crops after harvesting, to kill parasites and pests, and to control the ripening of stored fruit and vegetables; in industry, radioisotopes can be used to detect leaks, to determine mechanical wear and to study structural changes of different metals in the process of metal smelting. Therefore, it is inevitable that radioisotopes emit radiation rays. But tungsten alloy radiation isotope radiation shielding can reduce the harm of radiation to human.
Tungsten alloy shielding is a device to shield radiation. It can be used in medical industry, nuclear industry and scientific research department, such as radiation shielding for radioisotopes. Tungsten alloy shielding has many types, like tungsten alloy shielding container, tungsten alloy shielding shell. Because the radiation shielding effectiveness of a metal material increases with its density, and tungsten alloy has high density, so tungsten alloy shielding has good shielding effectiveness. Moreover, compared with conventional shielding materials (such as lead), tungsten alloy is environmentally friendly and no toxic, and thus will not pollute the environment or endanger human health.
