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Replacement of SF6 with N2/CO2 in design of a parallel-fed voltage multiplier for electrostatic accelerator.
- Source :
- Radiation Physics & Engineering; May2022, Vol. 3 Issue 2, p17-25, 9p
- Publication Year :
- 2022
-
Abstract
- Two main insulating gases of SF6 and N<subscript>2</subscript>/CO<subscript>2</subscript> mixture are employed to increase voltage capability of electrostatic accelerators. SF<subscript>6</subscript> offers more insulating capability, but environmental and technical disadvantages of SF<subscript>6</subscript> makes usage of N<subscript>2</subscript>/CO<subscript>2</subscript> mixture a desirable option. This paper aims to replace SF<subscript>6</subscript> with N<subscript>2</subscript>/CO<subscript>2</subscript> in design of a 500 kV/30 mA parallel-fed voltage multiplier. High-voltage section of the accelerator is a capacitive structure which in combination with rectifying elements, generates the accelerating high-voltage. The structure which is called Voltage Multiplier Capacitive Structure (VMCS) is designed and analyzed in this paper. The first structure is designed to employ SF<subscript>6</subscript> as insulating gas (VMCS500). Then, the structure is modified to be capable of using N<subscript>2</subscript>/CO<subscript>2</subscript> as insulating gas with lower breakdown voltage (VMCS500-m). The modified structure requires more complex mechanical manufacturing process, but offers the simplicity of using N<subscript>2</subscript>/CO<subscript>2</subscript> mixture, the option of using the modified structure with superior SF<subscript>6</subscript> gas, increasing the output voltage and beam energy. CST EM STUDIO was used for capacitance calculation and electric field analysis. LTSPICE was used for equivalent circuit analysis of the high voltage generating section. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 26456397
- Volume :
- 3
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Radiation Physics & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 156885873
- Full Text :
- https://doi.org/10.22034/RPE.2022.329539.1056