Installation of the Madison Symmetric Torus heavy ion beam probe

• Main Authors: Connor, K.A., Crowley, T.P., Demers, D.R., Lei, J., Schatz, J.G., Schoch, P.M., Shah, U.
• Format: Conference Proceeding
• Language: English
• Subjects: Density measurement; Electron beams; Fluctuations; Ion beams; Magnetic field measurement; Particle measurements; Plasma confinement; Plasma measurements; Probes; Toroidal magnetic fields
• ISSN: 0730-9244; 2576-7208
• DOI: 10.1109/PLASMA.1999.829442

Summary form only given. A heavy ion beam probe has been designed for application on the Madison Symmetric Torus with final construction and installation occurring in early 1999. The HIBP will be capable of making measurements of the plasma space potential /spl Phi/(r), simultaneous density and potential fluctuations, and magnetic measurements (both equilibrium fields and fluctuations). On MST, measurements of n/sub e/(t) and /spl Phi/(t) will take priority once the system is fully functional, with some effort also dedicated to equilibrium measurements, particularly of the confining magnetic field. The latter measurements will not be standard direct heavy ion beam probe measurements based on the detection of secondary ions produced by collisions between the probing beam and plasma electrons. Rather, information on the magnetic field will be inferred from overall ion trajectory characterization. While this basic set of measurements is being made, we will also be collecting information to determine the next plasma parameter to address. The prospects for these HIBP measurements are very exciting, since the information to be obtained has not previously been available from the core of a hot Reversed Field Pinch.