Vega SHLM MI4, Руководство по эксплуатации, Страница: 22 / 72

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Source Material
The source material is either Cesium 137 (Cs-137)or Cobalt 60 (Co-60).
Shutter
A shutter is the mechanism that opens or closes the radiation beam port and
either permits or denies the movement of the source carriers from the safe
storage of the source holder into the process vessel..
Figure 3.5
Shutter Closed Open
Bracket and Lifting Eye
A forklift bracket and the lifting eyes on the housing help when lifting the source
holder into place for installation. Depending on the size of the equipment, the
brackets and/or lifting eyes are configured as follows:
• Two lifting eyes are for models with active lengths of 18" and smaller.
• Four lifting eyes are for models with active lengths of 24" and larger.
• Forklift brackets are for models with active lengths of 30" and larger only.