CERN Accelerating science

Article
Report number arXiv:2306.00862 ; CERN-EP-2023-102
Title SDR, EVC, and SDREVC: Limitations and Extensions
Author(s) ASACUSA-Cusp Collaboration  Show all 37 authors
Publication 2023-10-31
Imprint 24 May 2023
Number of pages 8
Note Version 2: a small discrepancy between the N values for Table 1 and Fig. 3 led to an investigation of the charge counting diagnostic. There is a small energy dependence which only became apparent following improvements to pre-SDREVC. The pulsed dump was modified to reduce this dependence. The data for Table 1 and Fig. 3 was taken again with the improved methods
DOI 10.1017/s0022377823001022
10.1017/S0022377823001022
Subject category Other Fields of Physics
Accelerator/Facility, Experiment CERN AD ; Asacusa AD-3
Free keywords experimental results ; Nonneutral plasma
Abstract Methods for reducing the radius, temperature, and space charge of nonneutral plasma are usually reported for conditions which approximate an ideal Penning Malmberg trap. Here we show that (1) similar methods are still effective under surprisingly adverse circumstances: we perform SDR and SDREVC in a strong magnetic mirror field using only 3 out of 4 rotating wall petals. In addition, we demonstrate (2) an alternative to SDREVC, using e-kick instead of EVC and (3) an upper limit for how much plasma can be cooled to T < 20 K using EVC. This limit depends on the space charge, not on the number of particles or the plasma density.
Copyright/License Preprint: © 2023-2025 CERN (License: CC-BY-4.0)
publication: (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: eric.david.hunter@cern.ch


 Záznam vytvorený 2023-05-24, zmenený 2024-03-08


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