Speaker
Oskar Hartbrich
(Deutsches Elektronen-Synchrotron (DE))
Description
Within the CALICE collaboration, several concepts for the hadronic calorimeter of a future linear collider detector are studied. After having demonstrated the capabilities of the measurement methods in *physics prototypes*, the focus now lies on improving their implementation in *engineering prototypes*, that are scalable to the full linear collider detector. The Analog Hadron Calorimeter (AHCAL) concept is a sampling calorimeter of tungsten or steel absorber plates and plastic scintillator tiles read out by silicon photomultipliers (SiPMs) as active material. The front-end chips are integrated into the active layers of the calorimeter and are designed for minimal power consumption (power pulsing). The versatile electronics allows the prototype to be equipped with different types of scintillator tiles and SiPMs. In recent beam tests, a prototype with ~3700 channels, equipped with several types of scintillator tiles and SiPMs, was exposed to electron, muon and hadron beams. The experience of these beam tests as well as the availability of new generation SiPMs with much reduced noise and better device-to-device uniformity resulted in an improved detector design with surface-mount SiPMs allowing for easier mass assembly.
The talk will discuss the AHCAL testbeam measurements, the improved detector design and plans for future prototypes and beam tests.
Primary author
Oskar Hartbrich
(Deutsches Elektronen-Synchrotron (DE))
Co-author
Katja Krueger
(Deutsches Elektronen-Synchrotron (DE))
