Report number
| arXiv:2401.11875 |
Title
| Design and characterization of an antiproton deceleration beamline for the PUMA experiment |
Author(s)
|
Fischer, Jonas (Darmstadt, Tech. U.) ; Schmidt, Alexander (Darmstadt, Tech. U.) ; Azaryan, Nikolay (CERN) ; Butin, François (CERN) ; Somoza, Jose Ferreira (CERN) ; Husson, Audric (Darmstadt, Tech. U.) ; Klink, Clara (CERN) ; Obertelli, Alexandre (Darmstadt, Tech. U.) ; Schlaich, Moritz (Darmstadt, Tech. U.) ; Sinturel, Alexandre (CERN) ; Thaus, Nicolas (CERN) ; Wienholtz, Frank (Darmstadt, Tech. U.) 12 人のオーサーを表示 |
Publication
| 2024-03-15 |
Imprint
| 2024-01-22 |
Number of pages
| 9 |
In:
| Nucl. Instrum. Methods Phys. Res., B 550 (2024) 165318 |
DOI
| 10.1016/j.nimb.2024.165318 (publication)
|
Subject category
| physics.ins-det ; Detectors and Experimental Techniques |
Abstract
| 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±3) eV, marking the initial stage in trapping antiprotons for the PUMA experiment. Employing a high-voltage ramping scheme, the pressure remains below 2⋅10−10 mbar upstream of the pulsed drift tube for 75% of the cycle time. The beamline reached a transmission of (55±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 σhoriz = (3.0±0.1) mm and σvert = (3.8±0.2) mm, respectively. This spot size is within the acceptance of the PUMA Penning trap. |
Copyright/License
| preprint: (License: CC BY 4.0) publication: © 2024 The Author(s) (License: CC BY 4.0) |