München 2019 – wissenschaftliches Programm
HK 14.2: Vortrag
Montag, 18. März 2019, 17:00–17:15, HS 11
Feature extraction of the electromagnetic calorimeter preamplifier (APFEL - ASIC) for the PANDA experiment at FAIR — Luigi Capozza1,2, Alaa Dbeyssi1,2, Frank Maas1,2,3, •Oliver Noll1,2, David Rodriguez Pineiro1, Sahra Wolff1,2, and Manuel Zambrana1,2 for the PANDA collaboration — 1Helmholtz-Institut Mainz, Mainz, Germany — 2Institute of Nuclear Physics, Mainz, Germany — 3PRISMA Cluster of Excellence, Mainz, Germany
The PANDA experiment at the upcoming FAIR accelerator facility will study antiproton annihilation reactions at antiproton beam momenta from 1.5 GeV/c up to 15 GeV/c. With its modular multi-purpose detector system, it will be able to observe a variety of physics channels. The electromagnetic process group (EMP) at HI-Mainz is developing the backward end-cap of the electromagnetic calorimeter. Within this activity, a method for the real-time extraction of specific signal features using the APFEL ASIC preamplifier was developed for the PANDA sampling ADC. Besides different extraction routines, a high order finite impulse response filter was implemented. A test beam time at the Mainz Microtron facility using the backward end-cap prototype was performed. The setup achieved decent linearity and a relative energy resolution of less than 2.3 % at 1 GeV. Moreover, a proper hit detection at detector rates up to 350 kHz was obtained. The talk will address both the hardware implementation and the test beamtime.