Stafford Fusion Lab 
Researching the future 


  Snowdon Tokamak    |     Vacuum System    |     Control, Data Access and Communication    |     Diagnostics    |     Electrics     |    Pre-ionization    


Vacuum system


Vacuum System Components

Commissioning of the Vacuum System


To achieve fusion a good vacuum is required, the following chart shows a range of tokamaks that have been used successfully and the vacuum they have achieved:



Medusa - (Garstka, 1997), Jet - (Pearce et al., 2001), NCST - (Huang et al., 2023), Novillo - (Valencia-Alvarado et al., 1983), HL-2A - (Zeng et al., 2005), KSTAR - (Kim et al., 2009).

Based on the pressures used on these existing systems the target pressure for the complete system will be 5E-8mbar.

The vacuum system to be used is shown below:



References

Garstka, G (1997). Startup and Stability of a small Spherical Tokamak. Dissertation University of Wisconsin-Madison. UMI Number 9803422.
Huang, F. H. et al. (2023). Design of vacuum system for NCST spherical tokamak. AIP Advances 13, 085313 (2023); doi: 10.1063/5.0160942
Kim, S. T. et al. (2009). Baking results of KSTAR vacuum vessel. Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 22, 2009
Pearce, R. et al. (2001). Vacuum Pumping Developments on the JET Tokamak. EFDA-JET-CP(00)01/07.
Valencia-Alvarado, R. (1983). Vacuum System of the Tokamak Novillo. Instituto Nacional de Investigaciones Nucleares, Laboratorio de Fisica de Palmas, Mexico.
Zeng, C. et al. (2005). Vacuum System HL-2A Tokamak Cao Zeng et al 2005, Plasma Sci. Technol. 7 2632. doi: 10.1088/1009-0630/7/1/007


Any enquiries should be directed to: admin @ staffordfusionlab.co.uk