Reducing the background temperature for cyclotron cooling in a cryogenic Penning

Reducing the background temperature for cyclotron cooling in a cryogenic Penning–Malmberg trap

Published:2022-08 Issue:8 Volume:29 Page:083303
ISSN:1070-664X
Container-title:Physics of Plasmas
language:en
Short-container-title:Physics of Plasmas

Author:

Amsler C.¹^ORCID,Breuker H.²,Chesnevskaya S.¹^ORCID,Costantini G.³⁴^ORCID,Ferragut R.⁵⁶^ORCID,Giammarchi M.⁶^ORCID,Gligorova A.¹^ORCID,Gosta G.³⁴^ORCID,Higaki H.⁷^ORCID,Hunter E. D.¹^ORCID,Killian C.¹,Kletzl V.¹^ORCID,Kraxberger V.¹^ORCID,Kuroda N.⁸^ORCID,Lanz A.¹⁹^ORCID,Leali M.³⁴^ORCID,Mäckel V.¹,Maero G.⁶¹⁰^ORCID,Malbrunot C.¹¹^ORCID,Mascagna V.³⁴^ORCID,Matsuda Y.⁸^ORCID,Migliorati S.³⁴^ORCID,Murtagh D. J.¹^ORCID,Nagata Y.¹²^ORCID,Nanda A.¹⁹,Nowak L.⁹¹¹,Pasino E.⁶¹⁰,Romé M.⁶¹⁰^ORCID,Simon M. C.¹^ORCID,Tajima M.¹³^ORCID,Toso V.⁵⁶^ORCID,Ulmer S.²^ORCID,Venturelli L.³⁴^ORCID,Weiser A.¹⁹^ORCID,Widmann E.¹^ORCID,Wolz T.¹¹^ORCID,Yamazaki Y.²^ORCID,Zmeskal J.¹^ORCID

Affiliation:

1. Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, 1030 Vienna, Austria

2. Ulmer Fundamental Symmetries Laboratory, RIKEN, 351-0198 Saitama, Japan

3. Dipartimento di Ingegneria dell'Informazione, Università degli Studi di Brescia, 25121 Brescia, Italy

4. INFN sez. Pavia, 27100 Pavia, Italy

5. L-NESS and Department of Physics, Politecnico di Milano, 22100 Como, Italy

6. INFN sez. Milano, 20133 Milan, Italy

7. Graduate School of Advanced Science and Engineering, Hiroshima University, 739-8530 Hiroshima, Japan

8. Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo, 153-8902 Tokyo, Japan

9. Vienna Doctoral School in Physics, University of Vienna, 1090 Vienna, Austria

10. Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milan, Italy

11. Experimental Physics Department, CERN, 1211 Geneva, Switzerland

12. Department of Physics, Tokyo University of Science, 162-8601 Tokyo, Japan

13. RIKEN Nishina Center for Accelerator-Based Science, 351-0198 Saitama, Japan

Abstract

Magnetized nonneutral plasma composed of electrons or positrons couples to the local microwave environment via cyclotron radiation. The equilibrium plasma temperature depends on the microwave energy density near the cyclotron frequency. Fine copper meshes and cryogenic microwave absorbing material were used to lower the effective temperature of the radiation environment in ASACUSA's Cusp trap, resulting in significantly reduced plasma temperature.

Funder

Austrian Science Fund

Japan Society for the Promotion of Science

RIKEN

Horizon 2020 Framework Programme

Università degli Studi di Brescia

Publisher

AIP Publishing

Subject

Condensed Matter Physics

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0093360