beta radiation

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be·ta ra·di·a·tion

radiant energy from a source of beta rays.
Farlex Partner Medical Dictionary © Farlex 2012


The combined processes of emission, transmission and absorption of highly energetic waves and particles on the electromagnetic spectrum treatment to kill cancer cells. See Acute radiation injury, Alpha radiation, Background radiation, Chemoradiation, Coherent radiation, Corpuscular radiation, Definitive radiation, Electromagnetic radiation, External radiation, Gamma radiation, Grenz radiation, Implant radiation, Internal radiation, Ionizing radiation, Non-ionizing radiation, Remnant radiation, Scattered radiation, Synchrotron radiation, Total body irradiation Clinical practice The direct, band-like extension of a sensation, in particular of pain, from a point of origin to another region of the body. Cf Referred pain Oncology The administration of ionizing radiation to kill malignant tumor cells. See Radiation fibrosis, Radiation therapy.
Alpha radiation 2 protons and 2 neutrons, eg plutonium, radon; α radiation travels 15 cm in air and is stopped by a piece of paper; proven role in soft tissue malignancy–see Radium Dial company, relationship with epithelial malignancy is uncertain; it is present in cigarette smoke and may have an additive effect to the known carcinogenic effect of tar; emitted by radium, thorium, uranium.
Beta radiation Electrons, eg strontium-90, tritium–3H; β radiation travels at the speed of light, is stopped by wood and thin metals and is carcinogenic to skin
Gamma radiation Gamma photon A quantum of electromagnetic radiation of ≤ 1 nm, which is generated by unstable nuclei eg 60Co; γ radiation is stopped by several feet of heavy concrete or 10-40 cm of lead and is linked to cancer, inducing mutations at the glycophorin A locus in survivors of atomic blasts; 183/105 excess deaths in survivors of the Hiroshima and Nagasaki blasts, with a 13-fold ↑ in non-lymphocytic leukemia–peaking at 6 yrs post-blast, thyroid nodules and tumors–peaking at 15-20 years post-blast and multiple myeloma 6-fold ↑–peaking 30 yrs post-blast
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

Beta radiation

Streams of electrons emitted by beta emitters like carbon-14 and radium.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The FORSs were applied to measure beta radiation from a Sr-90 disk source (0.1 [micro]Ci, 2014.09, Spectrum Technique).
While 10 of 97 patients (10.3%) treated with surgical excision alone and 18 of 332 (5.4%) treated with adjunctive beta radiation experienced recurrences, the actual recurrence rates in this population are therefore probably higher.
Along with a batch of untreated cells, these were exposed to doses of ultraviolet beta radiation for ten seconds.
Any possible health effects from it are the result of the beta radiation it emits.
[sup.131]I emits mostly beta radiation, which penetrates surfaces more shallowly than gamma radiation.
It also emits alpha and beta radiation, which can damage lungs, kidneys and other soft tissues, especially the digestive tract.
BERLIN -- Intracoronary brachytherapy using beta radiation remains a safe and effective therapy for in-stent restenosis at the 2-year follow-up mark in its first randomized clinical trial, Dr.
64.9%) for the subset of patients receiving Sr-90 beta radiation compared to this placebo control group.
(Nasdaq:RADX), Irvine, Calif., has completed enrollment in the BRITE II (Beta Radiation to Reduce In-Stent Restenosis) pivotal clinical study.
Beta radiation (electrons) arises when an electron is propelled out of an atom into space.
Acerinox workers wore no protective gear to shield them from the cesium's gamma and beta radiation. Contaminated pans of the factory have been sealed off, but it was not until June 15 -- 20 days after the accident -- that exposed workers were given whole-body radiation checks.