Tungsten shielded devices for holding a source of radioactive
material and directing a beam of radiant energy there from for
medical therapy and other purposes; and more particularly to such
source holder devices as comprise a main body for containing the
radioactive source and shielding the same in a safe manner when in
a repose position, and a radiation emergence portion into which
portion said source is moved for registry with a radiation
emergence laperture therein.
Tungsten source holder device having improved means for effecting
actuation of the radioactive source from its repose position to its
active position whereby such actuation is greatly facilitated and
fail-safe operation of the device is assured.
Tungsten alloys is a best choices for source holder device for
tungsten alloys shielding provide excellent value. A high-density
alloy can provide the same energy absorption as lead using 1/3 less
material. People are taking advantage of tungsten alloy's reliable
radiation shielding properties. It can provide the same degree of
protection as lead whilst significantly reducing the overall volume
and thickness of shields and containers. Tungsten heavy alloy
source holder device have very high melting point and have a
density twice that of steel and are more than 50% heavier than
lead. Due to their high density, tungsten alloys offer greater
radiation shielding than lead and are non-toxic.