Radiation protection group, security and a quality assurance group.

辐射保护小组，还有质量保障小组。

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High quality light: no heat and radiation since there is no ultraviolet ray and infrared ray for the spectrum. It belongs to typical green lighting source.

光线质量高：由于光谱中没有紫外线和红外线，故没有热量，没有辐射，属于典型的绿色照明光源。

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In the past, Dr. Sclafani said, manufacturers had marketed ct scanners based on high-quality images, which often meant more radiation.

在过去，Sclafani博士说，用能产生高质量的图像的CT扫描机开拓市场，这也意味着更多的辐射。

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The aim is to administer sufficient radiation to achieve an image scan of adequate quality, but not too much to cause harm to the patient.

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