Usually, the more body accept radiation energy, the more serious the radiation sickness symptoms and the greater the risk that the cancer and birth defects. It can be distortion, hereditary disease incidence, affect the health of several generations.
Nuclear radiation can damage
cells and the DNA inside them through its ionizing effect. This effect
happens when a high-energy carrying particle or photon removes an
electron within an atom’s nucleus from its orbit, thereby changing the
properties of the atom. Radiation shielding protects our body from
nuclear radiation. Wolfram heavy alloy is the material to produce
radiation shielding which is widely used in hospitals and industries.
Nuclear radiation can be
classified into three categories. They are labeled with the first three
letters of the Greek alphabet: ά (alpha), β (beta) and γ (gamma).
Alpha radiation consists of a stream of fast-moving helium nuclei (two
protons and two neutrons). As such, an alpha particle is relatively
heavy and carries two positive electrical charges. Beta radiation
consists of fast-moving electrons or positron (an antimatter electron).
A beta particle is much lighter than an alpha, and carries one unit of
charge. Gamma radiation consists of photons, which are without mass
and carry no charge. X-rays are also photons, but carry less energy
than gammas. Industrial radiography uses gamma radiation to detect
structural faults in materials such as metal and concrete. As a
pipe-line inspection, the equipment uses wolfram shielding, coupled
with a wolfram collimator. Some materials absorb beta rays. You can
measure this absorption by fixing beta source and a radiation monitor
so their positions do not change.
Why choose wolfram heavy alloy as the nuclear radiation shielding?
Tungsten heavy alloy
shielding is a suitable raw material for radiation protection, as its
combination of radiographic density (more than 60% denser than lead),
machinability, good corrosion resistance, high radiation absorption
(superior to lead), simplified life cycle, non-toxic and high strength.
It can provide the same degree of protection as lead whilst
significantly reducing the overall volume and thickness of shields and
containers. Besides, compared with lead or depleted uranium in the
past, wolfram alloy is more acceptable in this case, for they are