gamma-ray source

基本解釋

The Vela pulsar is the brightest persistent source in the gamma-ray sky.
船帆脈沖星是伽馬射線的天空中最明亮的放射源。
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The nuclear-cement log is similar to a density log in that it contains a gamma ray source and measures the backscattered gamma rays.
核水泥測井與密度測井相類似，因?yàn)樗哂幸粋€伽馬射線源，而且測量反散射伽馬射線。
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In December 2009 it flared up again, becoming the brightest persistent source ever seen in high energy gamma-rays (gamma-ray bursts are momentarily brighter, but they are over in a few minutes).
但在2009年12月，它再次驟然閃爍起來，成為有史以來高能伽馬射線亮度最強(qiáng)的持久亮源（伽馬射線爆發(fā)通常瞬間變亮，但幾分鐘后就結(jié)束了）。