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CHAPTER 2<br />

EXPERIMENTAL SET-UP AND<br />

TECHNIQUES USED IN PLASMA<br />

2.1 Introduction<br />

STERILIZATION<br />

The experiments described in the present thesis have been conducted on an<br />

inductively coupled plasma (ICP) device constructed in the laboratory of Electri-<br />

cal and Electronic Engineering, at Saga University [70-75]. Basically, it consists<br />

of discharge chamber with an internal single loop antenna to which the RF power<br />

is coupled. The device is similar with other ICP with internal antenna described<br />

someplace else [97]. The whole system permits to produce plasmas with prop-<br />

erties comparable with ones that are used for surface processing and allow the<br />

comparison of the results with those found by other research groups [17, 18, 57].<br />

In this chapter, the RF ICP device and techniques used in plasma sterilization<br />

are described. The section 2.2 concerns about the experimental set-up used for<br />

plasma treatments. Microbiological diagnostics used to investigate the dynamics<br />

of the microorganisms population is covered by both theoretical and experimental<br />

23

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