Some of these gamma rays pass near atomic nuclei, in the process transforming into an electron and a positron, researchers said.

某些伽马射线在靠近原子核的附近经过，进入到转化为个电子和正电子的过程，研究人员说。

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Electron beams and X-ray accelerators can both be used to irradiate various shapes and sizes of food, although X-rays are better at penetrating large items.

电子束和X光加速器都可以用来辐照各种不同形状和大小的食品，不过X光穿透大型食品的能力更佳。

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Food is irradiated by brief exposure to X-rays, gamma rays or an electron beam.

食品通过短暂地暴露在x射线、γ射线或电子束来进行辐照杀菌。

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After that the industry will have to move on to nonoptical techniques, such as electron beams or even X rays, which have wavelengths less than a nanometer, one thousandth of a micron.

FORBES: Trick Of The Light

After that the industry will have to move on to nonoptical techniques, such as electron beams or even X rays, which have wavelengths less than 1 nanometer, or one-thousandth of a micron.

FORBES: Trick of the Light