| Autor: |
Fischer, J., Schmidt, A., Azaryan, N., Butin, F., Somoza, J. Ferreira, Husson, A., Klink, C., Obertelli, A., Schlaich, M., Sinturel, A., Thaus, N., Wienholtz, F. |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Nucl. Instrum. Methods Phys. Res. B 550 (2024) 165318 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.nimb.2024.165318 |
| Popis: |
We report on the design and characterization of an antiproton deceleration beamline, based on a pulsed drift tube, for the PUMA experiment at the Antimatter Factory at CERN. The design has been tailored to high-voltage (100 kV) and ultra-high vacuum (below $10^{-10}$ mbar) conditions. A first operation achieved decelerating antiprotons from an initial energy of 100 keV down to ($3898\pm 3$) eV, marking the initial stage in trapping antiprotons for the PUMA experiment. Employing a high-voltage ramping scheme, the pressure remains below $2\cdot 10^{-10}$ mbar upstream of the pulsed drift tube for 75% of the cycle time. The beamline reached a transmission of ($55 \pm 3$)% for antiprotons decelerated to 4 keV. The beam is focused on a position sensitive detector to a spot with horizontal and vertical standard deviations of ${\sigma}_\mathrm{horiz}$ = ($3.0 \pm 0.1$) mm and ${\sigma}_\mathrm{vert}$ = ($3.8 \pm 0.2$) mm, respectively. This spot size is within the acceptance of the PUMA Penning trap. |
| Databáze: |
arXiv |
| Externí odkaz: |
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