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Fig.5. The main form of “Source of Gamma Ray” for entering of input data
and correction of Gamma source rack parameters.
The form comprises three parts:
• top part contains of characteristics for gamma ray source pencils,
• middle part contains of characteristics for source modules and source rack,
• lover part contains of the parameters of mutual arrangement for source
rack and container with irradiated product.
3.1. Input data of source pencils
There are two types of source pencils which are used in the gamma
irradiator model:
• active cobalt-60 slugs encapsulated into stainless steel capsule, and
• a “blank,” inactive stainless steel cylinder.
The source pencil construction is presented in Fig.6.
All pencils types have the same geometrical characteristics.