Speaker
Ms
Anna Soter
(Max Planck Institute of Quantum Optics, Germany)
Description
The ASACUSA experiment at CERN is now constructing 530-channel position-sensitive scintillation detectors and its FPGA-based readout electronics to measure and track high rates of charged pions emerging from antiproton annihilations in a future radiofrequency Paul trap for antiprotons. Each channel is read out by a wavelength shifting (WLS) fiber and 1600-pixel silicon photomultiplier (MPPC). We first optimized the light yields of five types of extruded and cast scintillator bars with various cross sections. Double-clad WLS fibers were embedded in grooves or holes fabricated within the scintillators, and they were read out by multichannel hybrid or ASIC monolithic charge-sensitive preamplifiers. The first assembled detectors were tested against the 100-keV pulsed $\overline{p}$ beam at the Antiproton Decelerator (AD) of CERN, where we found that the pixel saturation at high antiproton rates were an issue.
Preferred medium (Oral/poster)
poster
Author
Ms
Anna Soter
(Max Planck Institute of Quantum Optics, Germany)
Co-authors
Dr
Horvath Dezso
(KFKI Research Institute for Particle and Nuclear Physics, H-1525 Budapest, Hungary)
Dr
Masaki Hori
(Max Planck Institute of Quantum Optics, Germany)
Mr
Takumi Kobayashi
(Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)
