比活度

/ bǐ huó dù /

1
specific radioactivity
... 放射性比活度(specific radioactivity) 放射性浓度(radioactive concentration) 1 放射性比活度(specific radioactivity) 是指某一纯的元素或化合物中单位质量所含的放...
2
ratio activity
文章摘要信息--微机γ能谱比活度测量仪关键词：放射性 γ能谱测量 比活度 建材检测 [gap=976]Keywords : radioactivity γspectrummeasurement ratioactivity constructionmaterialtest
3
specific act'y
(2)比活度(specific act'y)为若干Ci/g？中级：专业科目(密封放射性物质) 1.

短语

1
放射性比活度
specific activity ; radioactivity specific activity degree ; specific radioactivity
2
同位素比活度
isotope specific activity
3
放射性等效镭比活度
equivalent radium specific activity

1
通过试验，获得了实用转换系数，据此，可以求出每节钴靶的比活度。
Useful conversion coefficient is obtained by test, and therefore axial distribution of cobalt target specific activity is calculated.
2
结果：不同产地、不同品种的进口花岗岩石材样品中天然放射性核素的比活度与普通建筑材料比有较大差别。
The specific activities of natural radionuclides in import granites of different producing area and different varieties have biggish differences with those in normal building materials.
3
本文介绍了用(232u)作示踪同位素，测定岩石、土壤、水体中铀同位素及岩石中钍同位素比活度的方法。
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.

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