| 영문 | isotope | 한글 | 동위원소 |
|---|---|---|---|
| 설명 | 원자번호는 같지만 질량 수가 다른 원소. 동위체라고도 한다. Isotope라는 명칭은 F. 소디가 명명한 것이다. 동위원소는 보통원소기호의 왼쪽 어깨에 질량수를 붙여 표시한다. 일반적으로 동위원소는 성질이 비슷하지만 원자번호가 작은 원소, 예를 들어 수소의 동위원소(수소 1H, 중수소 2H, 3중수소 3H) 등에서는 화학적 성질까지도 약간 다른데가 있다. 동위원소에는 안정한 동위원소와 불안정한 방사성동위원소가 있다. |
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| RAI | radioactive iodine; radioactive isotope; resident assessment instrument; resting ankle index; right ... |
|---|---|
| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
| BIC | blood isotope clearance |
| DIC | dicarbazine; differential interference contrast microscopy; diffuse intravascular coagulation; direc... |
| ICG | indocyanine green; isotope cisternography |
| RAI | Radioactive iodine |
|---|---|
| RAIU | Radioactive iodine uptakes |
| GC-C-IRMS | Gas chromatography-combustion-isotope ratio mass spectrometry |
| IDMS | Isotope dilution mass spectrometry |
| IRMS | Isotope ratio mass spectrometry |
| radioactive isotope | <physics, radiobiology> An isotope of an element that has an unstable nucleus, it tries to stabilise itself by giving off ionising radiation. (09 Oct 1997) |
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| stable isotope | A nonradioactive nuclide; an isotope that shows no tendency to undergo radioactive decomposition. (05 Mar 2000) |
|---|---|
| daughter isotope | An element produced by radioactive decay of another. See: radionuclide generator, cow. (05 Mar 2000) |
| isotope | <radiobiology> One of several nuclides having the same number of protons in their nuclei and hence having the same atomic number, but differing in the number of neutrons and therefore, in the mass number. Almost identical chemical properties exist between isotopes of a particular element. The use of this term as a synonym for nuclide is to be discouraged. (16 Dec 1997) |
| isotope clearance | The rate at which an isotope is removed (usually by blood flow) from a tissue or organ such as the brain. (05 Mar 2000) |
| isotope labeling | Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labelled substances unless the methods of labeling are substantively discussed. Tracers that may be labelled include chemical substances, cells, or microorganisms. (12 Dec 1998) |
| air pollutants, radioactive | Pollutants, present in air, which exhibit radioactivity. (12 Dec 1998) |
| radioactive | Giving off radiation. (12 Dec 1998) |
| radioactive atom | <chemistry, physics> An atom with an unstable nucleus, which emits particulate or electromagnetic radiation (radioactive emission) to achieve greater stability. See: radionuclide, half-life, Becquerel. (05 Mar 2000) |
| radioactive constant | <physics, radiobiology> The fraction of the amount of a radionuclide that undergoes transition per unit time. Formally: Lamda=dP/dt Where dP is the probability of a given nucleus undergoing spontaneous nuclear transition in the time interval dt. (16 Dec 1997) |
| radioactive contamination | <radiobiology> Radioactive substance dispersed in material or places where it is undesirable. (16 Dec 1997) |
| radioactive cow | Colloquialism for radionuclide generator. See: cow. (05 Mar 2000) |
| radioactive decay | <physics> The process by which a spontaneous change in nuclear state takes place. This process is accompanied by the emission of energy in various specific combinations of electromagnetic and corpuscular radiation and neutrinos. (16 Dec 1997) |
| radioactive equilibrium | <radiobiology> That condition in which the activities of the members of a radioactive chain decrease exponentially in time with the half-life of the chain precursor. Such radioactive equilibrium is only possible when the half-life of the precursor is longer than that of any other chain member. If the precursor half-life is so long that the change in the precursor population during the period of interest can be ignored, all the activities become sensibly equal and the equilibrium is said to be secular, otherwise it is said to be transient. (16 Dec 1997) |
| radioactive fallout | The material that descends to the earth or water well beyond the site of a surface or subsurface nuclear explosion. (12 Dec 1998) |
| radioactive iodide uptake test | A test of thyroid function in which 131I-iodide is given orally; after 24 hours, the amount present in the thyroid gland is measured and compared with normal values. Synonym: radioactive iodide uptake test, RAI test. (05 Mar 2000) |
| radioactive isotope |
An unstable isotope that emits ionizing radiation.
출처: www.fao.org/docrep/003/X3910E/X3910E21.htm
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|---|---|
| radioactive isotope |
An unstable isotope of a given element.
출처: www.wwnorton.com/college/geo/earth2/glossary/r.htm
|
| radioactive isotope |
A form of a molecule that emits radiation. There are three principal type of isotope emitters: alpha, beta, and gamma. Isotopes can be used as diagnostic agents in nuclear medicine. Such agents are chosen because they have an affinity for certain organs or tissues. One can use instruments to detect these isotopes. Brain, bone, liver, and spleen scans are examples of use of isotopes for diagnosis of abnormalities of those organs. Certain radioactive isotopes can damage cancer cells. ...
출처: www.cllinfo.com/Glossary/glossary_R.html
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| radioactive isotope |
An isotope of an element that has an unstable nucleus; it tries to stabilize itself by giving off ionizing radiation.
출처: www.scienceteacher.org/k12resources/lessons/lesson...
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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