학술논문
Cyclotron cooling to cryogenic temperature in a Penning-Malmberg trap with a large solid angle acceptance
Document Type
Working Paper
Author
Amsler, C.; Breuker, H.; Chesnevskaya, S.; Costantini, G.; Ferragut, R.; Giammarchi, M.; Gligorova, A.; Gosta, G.; Higaki, H.; Hunter, E. D.; Killian, C.; Kletzl, V.; Kraxberger, V.; Kuroda, N.; Lanz, A.; Leali, M.; Mäckel, V.; Maero, G.; Malbrunot, C.; Mascagna, V.; Matsuda, Y.; Migliorati, S.; Murtagh, D. J.; Nagata, Y.; Nanda, A.; Nowak, L.; Pasino, E.; Romé, M.; Simon, M. C.; Tajima, M.; Toso, V.; Ulmer, S.; Venturelli, L.; Weiser, A.; Widmann, E.; Wolz, T.; Yamazaki, Y.; Zmeskal, J.
Source
Subject
Language
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.