Low pressure multi-wire proportional chamber (LPMWPC) provides excellent position and time signals for the radioactive beam induced reactions.

低压多丝正比室为放射性束核反应的靶前粒子提供位置和时间信号。

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The food is not exposed to radioactive materials — rather, it's zapped with a radiation beam, which the EPA compares to a big flashlight.

食品并不暴露在放射性物质中——相反，它受环保局比喻为大手电光束的辐射光束照射。

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Since pure radioactive ion beam can be implanted into material directly, research on solid physics especially on impurity and defect in semiconductor become possible.

由于可以将纯净放射性核束注入到样品中去，使得其在固态物理特别是涉及到半导体中的杂质和缺陷问题的应用成为可能。

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Or you can pick your poison, choosing between surgery to remove the prostate and one of two forms of radiation, external beam radiation and radioactive "seeds" implanted in the gland itself.

FORBES: Men, Cancer, & Hope

The researchers fired a beam of calcium ions, each containing 20 protons, into a target of californium, a highly radioactive synthetic substance with 98 protons.

ECONOMIST: Nuclear physics: Magical shell game | The