Alpha particles protection against

Fun Body (contj Radiation-contamination protective suit Various types of protective clothing designed to prevent contamination of the body by radioactive particles. Protects against alpha and beta particles. Does NOT protect against gamma radiation. Designed to prevent skin contamination. If radiation is detected on sit consult an experienced radiation expert and evacuate personnel until the radiation hazard has been evaluated. 

Provide protection against alpha particles and low-energy beta particles resists some chemicals (depends on the type selected) relatively inexpensive Latex gloves tear easily... 

In handling an alpha radionuclide, shielding by keeping several centimetres away from a radiation source is not necessary because alpha particles are completely absorbed in the air layer. Even when the skin surface is contaminated with an alpha radionuclide, alpha particles can hardly penetrate to the sensitive layer, basal cell layer, or epidermis lying 50-100 pm apart beneath the skin surface. By wearing rubber gloves (usually about 0.25 mm thick), a hand can be completely protected against alpha radiation. 

A barrier coating may also be required for protection against alpha particles. High-density devices can suffer soft errors when alpha particles emitted from trace quantities of thorium or uranium in packaging materials strike the active surface. Thus, the surface must be protected against this possibility. Polyimides are again recommended for such applications. 

Protects against alpha and beta particles. Does not protect against... 

However, work with these substances involves a number of unusual problems. Their radioactive properties lead to very high toxicity against which extreme protective measures have to be taken. Plutonium is an alpha-emitter with a particle range of only 3.7 cm in air, but it oxidizes readily into a very fine nonadherent dust. This has to be guarded against since the total permissible body-contact is only 0.6 A g. Another problem is provided by the self-heating of plutonium which is the result of its alpha-activity. 

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