Design and characterization of an antiproton deceleration beamline for the PUMA experiment

被引：0

作者：

Fischer, Jonas ^{[1
]}

Schmidt, Alexander ^{[1
]}

Azaryan, Nikolay ^{[2
]}

Butin, Francois ^{[2
]}

Somoza, Jose Ferreira ^{[2
]}

Husson, Audric ^{[1
]}

Klink, Clara ^{[2
]}

Obertelli, Alexandre ^{[1
]}

Schlaich, Moritz ^{[1
]}

Sinturel, Alexandre ^{[2
]}

Thaus, Nicolas ^{[2
]}

Wienholtz, Frank ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Nucl Phys, Schlossgartenstr 9, D-64289 Darmstadt, Hessen, Germany

[2] CERN, Espl Particules 1, CH-1211 Geneva, Switzerland

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2024年 / 550卷

基金：

欧洲研究理事会;

关键词：

Low-energy antiprotons; Ion beam deceleration; Pulsed drift tube; PUMA; NEUTRON; RADII; HALO;

D O I：

10.1016/j.nimb.2024.165318

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 2x10(-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 sigma(horiz) = (3.0 +/- 0.1) mm and sigma(vert) = (3.8 +/- 0.2) mm, respectively. This spot size is within the acceptance of the PUMA Penning trap.

引用

页数：9

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