radionuclide

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radionuclide

 [ra″de-o-noo´klīd]
a radioactive nuclide; one that disintegrates with the emission of corpuscular or electromagnetic radiations.

ra·di·o·nu·clide

(rā'dē-ō-nū'klīd),
An isotope of artificial or natural origin that exhibits radioactivity.

radionuclide

/ra·dio·nu·clide/ (-noo´klīd) a nuclide that disintegrates with the emission of corpuscular or electromagnetic radiations.

radionuclide

[-no̅o̅′klīd]
Etymology: L, radiare + nucleus, nut kernel
an isotope that undergoes radioactive decay. Any element with an excess of either neutrons or protons in the nucleus is unstable and tends toward radioactive decay, with the emission of energy that may be measurable with a detector. The processes of radioactive decay include beta particle emission, electron capture, isomeric transition, and positron emission. Positron-emitting radionuclides are important in positron emission tomography and in medical research. Radionuclides used in scintigraphy include 123I, 131I, 111In, 75Se, 99mTc, and 201Tl. Radionuclides of cobalt, iodine, phosphorus, strontium, and other elements are used for treatment of tumors and cancers and for nuclear imaging of internal parts of the body. See also nuclear scanning.

radionuclide

Radioactive isotope, radioisotope Radiation physics A nuclide with an unstable neutron to proton ratio, which undergoes radioactive decay; an artificial or natural nuclide with an unstable nucleus, that decays spontaneously, emitting electrons–β-particles or protons–α-particles and γ-radiation, ultimately achieving nuclear stability; RNs are used as in vivo or in vitro labels, for RT, or as sources of energy

ra·di·o·nu·clide

(rā'dē-ō-nū'klīd)
An isotope of artificial or natural origin that exhibits radioactivity. Radionuclides are used in diagnostic imaging and cancer therapy.

Radionuclide

A chemical substance, called an isotope, that exhibits radioactivity. A gamma camera, used in nuclear medicine procedures, will pick up the radioactive signals as the substance gathers in an organ or tissue. They are sometimes referred to as tracers.

ra·di·o·nu·clide

(rā'dē-ō-nū'klīd)
An isotope of artificial or natural origin that exhibits radioactivity. Radionuclides are used in diagnostic imaging and cancer therapy.

radionuclide (rā´dēōnoo´klīd),

n an unstable or radioactive type of atom characterized by the constitution of its nucleus and capable of existing for a measurable time. The nuclear constitution is specified by the number of protons
(A), number of neutrons
(N), and energy content, or alternatively by the atomic number
(Z), mass number
(A − N + Z), and atomic mass.

radionuclide

a radioactive nuclide; one that disintegrates with the emission of corpuscular or electromagnetic radiations. Used in diagnosis for whole body or individual organ scanning. See also radioactive isotope, nuclide.
References in periodicals archive ?
However, for heavier elements such as tin, barium (common in heat stabilizers), and antimony (flame retardants), Asoma recommends the use of a radio-isotope.
Egypt had explained to the IAEA that it believed the HEU "could have been brought into the country through contaminated radio-isotope transport containers", the May 5 report said.
Further, it will eliminate the need for radioactive disposal (due to the radio-isotope found in all conventional glow bottle starters).
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Will this affect the availability of radio-isotopes needed in our hospitals?
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Things are developing regarding IR-8 centrifuges as well as radiopharmaceuticals and radio-isotopes, he asserted.
With the Chalk River nuclear reactor scheduled to shut down in 2018, Thunder Bay's cyclotron will supply its own radio-isotopes for all regional patients.
Il a declare que le protocole d'accord couvre d'autres domaines tels que la production et l'utilisation des radio-isotopes dans l'industrie, la medecine, l'agriculture, la gestion des dechets radioactifs et la formation de specialistes en physique nucleaire et en energie nucleaire.
Les Occidentaux accusent Teheran de chercher a fabriquer l'arme atomique sous couvert de son programme nucleaire civil, notamment l'enrichissement d'uranium, ce que dementent les dirigeants iraniens, affirmant que ce programme vise exclusivement a produire de l'electricite et a mener des programmes de recherche pour produire, notamment des radio-isotopes pour les malades du cancer ou etre utilise dans l'industrie ou l'agriculture.
Zarif further said that depriving Iranian cancer patients from medical radio-isotopes, compelled Iran to build a heavy water reactor, going from an idea then to a full-fledged plant, to be commissioned soon.