tracer isotope

基本解釋

Technetium-99, a fission product of nuclear reactors that emits gamma rays, is the most-used tracer isotope in nuclear medicine.
鎝-99是核反應(yīng)堆的裂變產(chǎn)物，是原子核醫(yī)學(xué)中最有用的同位素。
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This paper presents a determination method of specific activity for uranium isotope in rocks, soil, water and thorium isotope in rocks using 232U as a tracer isotope.
本文介紹了用（232U）作示蹤同位素，測定巖石、土壤、水體中鈾同位素及巖石中釷同位素比活度的方法。
The combination of enriched stable isotope tracer studies and activation analysis techniques has become an ideal and reliable technique, especially in the fields of biology and medicine.
濃集的穩(wěn)定同位素示蹤研究和活化分析技術(shù)相結(jié)合已成為一種理想可靠的技術(shù)，在生物醫(yī)學(xué)中更顯示出它的特色。

The isotope, known as a medical tracer, is made outside the United States by a complicated process requiring highly enriched uranium from nuclear reactors.
NEWYORKER: Fussbudget