دورية أكاديمية
Minimizing plasma temperature for antimatter mixing experiments
| العنوان: | Minimizing plasma temperature for antimatter mixing experiments |
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| المؤلفون: | Hunter E.D., Amsler C., Breuker H., Chesnevskaya S., Costantini G., Ferragut R., Giammarchi M., Gligorova A., Gosta G., Higaki H., Kanai Y., 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., Uggerhøj U., Venturelli L., Weiser A., Widmann E., Wolz T., Yamazaki Y., Zmeskal J. |
| المصدر: | EPJ Web of Conferences, Vol 262, p 01007 (2022) |
| بيانات النشر: | EDP Sciences |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Physics, QC1-999 |
| الوصف: | The ASACUSA collaboration produces a beam of antihydrogen atoms by mixing pure positron and antiproton plasmas in a strong magnetic field with a double cusp geometry. The positrons cool via cyclotron radiation inside the cryogenic trap. Low positron temperature is essential for increasing the fraction of antihydrogen atoms which reach the ground state prior to exiting the trap. Many experimental groups observe that such plasmas reach equilibrium at a temperature well above the temperature of the surrounding electrodes. This problem is typically attributed to electronic noise and plasma expansion, which heat the plasma. The present work reports anomalous heating far beyond what can be attributed to those two sources. The heating seems to be a result of the axially open trap geometry, which couples the plasma to the external (300 K) environment via microwave radiation. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2100-014X |
| العلاقة: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/06/epjconf_exa2021_01007.pdfTest; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/f5104b6124f84215b490c263ee8adebdTest |
| DOI: | 10.1051/epjconf/202226201007 |
| الإتاحة: | https://doi.org/10.1051/epjconf/202226201007Test https://doaj.org/article/f5104b6124f84215b490c263ee8adebdTest |
| رقم الانضمام: | edsbas.7C3E3C1B |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 2100014X |
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| DOI: | 10.1051/epjconf/202226201007 |