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Beta rays

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
Be´ta rays
1.(Physics) a form of ionizing radiation emitted by radioactive substances (such as radium), more penetrating than alpha rays, and consisting of negatively charged electrons. The electrons are the same kind of particle as those of cathode rays, but have much higher velocities (about 35,000 to 180,000 miles per second). They are readily deflected by a magnetic or electric field.


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137]Cs gamma rays, X rays, neutrons, and internal beta rays resulting from the injection of tritiated water.
Age-related differences in susceptibility to carcinogenesis: a ... by Ericson, Jen / Environmental Health Perspectives
Immediately after the procedure, researchers randomly assigned patients to receive one of four different doses of radioactive yttrium-90 -- which emits beta rays -- within their arteries.
Radiation therapy keeps arteries clear by Wang, L. / Science News
The beta rays emitted from the CU-67 can isolate and attack tumors on a very deep level.
Advanced Optics Electronics, Inc. Increases Holdings in Emerging ... by Business Wire
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