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Because of its low density and atomic mass, beryllium is relatively transparent to X-rays and other forms of ionizing radiation; therefore, it is the most common window material for X-ray equipment and components of particle detectors.
Why is beryllium used in nuclear reactors?
Beryllium's high melting point makes it useful in nuclear reactors and other nuclear work. Beryllium can reflect neutrons (neutron reflector), which lets nuclear reactors have a more even distribution of neutrons.
Is beryllium a good moderator?
In addition to being an excellent neutron reflector material, beryllium is also an attractive material as a neutron moderator, i.e., it effectively “moderates” or reduces the energy of neutrons.
Does beryllium emit radiation?
We have observed that a radiation emitted from beryllium under the influence of radium gamma rays excites induced radioactivity in iodine, and we conclude that neutrons are liberated from beryllium by gamma rays.
Is beryllium a radioactive element?
Beryllium has but a single isotope, beryllium-9 which is not radioactive but beryllium-10, which cosmic rays produce in the upper atmosphere, is radioactive with a half-life of 1.5 million years.
Is beryllium toxic?
Beryllium is not an element that is crucial for humans; in fact it is one of the most toxic chemicals we know. It is a metal that can be very harmful when humans breathe it in, because it can damage the lungs and cause pneumonia.
What is an interesting fact about beryllium?
Beryllium is the fourth element on the periodic table and the 44th most abundant element in the earth's crust. Beryllium is two-thirds the density of aluminum. By weight, beryllium has six times the specific stiffness of steel. Beryllium is non-magnetic.
Why is beryllium a good neutron reflector?
Graphite and beryllium act as neutron moderators, reducing neutron energy that must be kept high. Fast reactors also have smaller cores with higher power densities, placing greater demands on the reflector material.
What is the melting point of beryllium?
1,287 °CBeryllium / Melting point
Is beryllium a hazardous material?
* Beryllium is on the Hazardous Substance List because it is regulated by OSHA and cited by ACGIH, DOT, NIOSH, NTP, DEP, IARC, IRIS, NFPA and EPA. * This chemical is on the Special Health Hazard Substance List because it is a CARCINOGEN.
