Related Experiment Video
Updated: Feb 16, 2026

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
Published on: May 25, 2021
Plasma characterization of the superconducting proton linear accelerator plasma generator using a 2 MHz compensated
C Schmitzer1, M Kronberger, J Lettry
1Vienna University of Technology, Institute of Applied Physics, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria. claus.schmitzer@cern.ch
Abstract:
The CERN study for a superconducting proton Linac (SPL) investigates the design of a pulsed 5 GeV Linac operating at 50 Hz. As a first step towards a future SPL H(-) volume ion source, a plasma generator capable of operating at Linac4 or nominal SPL settings has been developed and operated at a dedicated test stand. The hydrogen plasma is heated by an inductively coupled RF discharge e(-) and ions are confined by a magnetic multipole cusp field similar to the currently commissioned Linac4 H(-) ion source. Time-resolved measurements of the plasma potential, temperature, and electron energy distribution function obtained by means of a RF compensated Langmuir probe along the axis of the plasma generator are presented. The influence of the main tuning parameters, such as RF power and frequency and the timing scheme is discussed with the aim to correlate them to optimum H(-) ion beam parameters measured on an ion source test stand. The effects of hydrogen injection settings which allow operation at 50 Hz repetition rate are discussed.
More Related Videos
06:36Treating Surfaces with a Cold Atmospheric Pressure Plasma using the COST-Jet
Published on: November 2, 2020
07:38Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane
Published on: March 30, 2015
Related Concept Videos
Plasma Membrane in Bacteria and Archaea
Composition of Blood Plasma
Enlargement of the Plasma Membrane
Drug Distribution: Plasma Protein Binding
Protein Buffers in Blood Plasma and Cells
Certain amino acids can exist in a zwitterion state at a...
Fusion of Secretory Vesicles with the Plasma Membrane
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...