Cover Image

A cryogenic tracking detector for antihydrogen detection in the AEgIS experiment

We present the commissioning of the Fast Annihilation Cryogenic Tracker detector (FACT), installed around the antihydrogen production trap inside the 1T superconducting magnet of the AEgIS experiment. FACT is designed to detect pions originating from the annihilation of antiprotons. Its 794 scintill...

Full description

Saved in:
Bibliographic Details
Main Authors: Amsler, Claude (Author) , Antonello, M. (Author) , Belov, A. (Author) , Bonomi, G. (Author) , Brusa, R. S. (Author) , Caccia, M. (Author) , Camper, A. (Author) , Caravita, R. (Author) , Castelli, F. (Author) , Comparat, D. (Author) , Consolati, G. (Author) , Demetrio, Andrea (Author) , Di Noto, L. (Author) , Doser, M. (Author) , Ekman, P. A. (Author) , Fanì, M. (Author) , Ferragut, R. (Author) , Gerber, S. (Author) , Giammarchi, M. (Author) , Gligorova, A. (Author) , Guatieri, F. (Author) , Hackstock, P. (Author) , Haider, D. (Author) , Haider, S. (Author) , Hinterberger, A. (Author) , Kellerbauer, Alban (Author) , Müller, Simon R. (Author) , Oberthaler, Markus K. (Author) , Zimmer, Christian (Author)
Format: Article (Journal)
Language:English
Published: 14 February 2020
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2020, Volume: 960
ISSN:0168-9002
DOI:10.1016/j.nima.2020.163637
Online Access:Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1016/j.nima.2020.163637
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0168900220302151
Get full text
Author Notes:C. Amsler, M. Antonello, A. Belov, G. Bonomi, R.S. Brusa, M. Caccia, A. Camper, R. Caravita, F. Castelli, D. Comparat, G. Consolati, A. Demetrio, L. Di Noto, M. Doser, P.A. Ekman, M. Fanì, R. Ferragut, S. Gerber, M. Giammarchi, A. Gligorova, F. Guatieri, P. Hackstock, D. Haider, S. Haider, A. Hinterberger, A. Kellerbauer, O. Khalidova, D. Krasnický, V. Lagomarsino, C. Malbrunot, S. Mariazzi, V. Matveev, S.R. Müller, G. Nebbia, P. Nedelec, L. Nowak, M. Oberthaler, E. Oswald, D. Pagano, L. Penasa, V. Petracek, F. Prelz, M. Prevedelli, B. Rienaecker, J. Robert, O.M. Røhne, A. Rotondi, H. Sandaker, R. Santoro, J. Storey, G. Testera, I.C. Tietje, V. Toso, T. Wolz, J. Wuethrich, P. Yzombard, C. Zimmer, N. Zurlo
Description
Summary:We present the commissioning of the Fast Annihilation Cryogenic Tracker detector (FACT), installed around the antihydrogen production trap inside the 1T superconducting magnet of the AEgIS experiment. FACT is designed to detect pions originating from the annihilation of antiprotons. Its 794 scintillating fibers operate at 4K and are read out by silicon photomultipliers (MPPCs) at near room temperature. FACT provides the antiproton/antihydrogen annihilation position information with a few ns timing resolution. We present the hardware and software developments which led to the successful operation of the detector for antihydrogen detection and the results of an antiproton-loss based efficiency assessment. The main background to the antihydrogen signal is that of the positrons impinging onto the positronium conversion target and creating a large amount of gamma rays which produce a sizeable signal in the MPPCs shortly before the antihydrogen signal is expected. We detail the characterization of this background signal and its impact on the antihydrogen detection efficiency.
Item Description:Gesehen am 16.11.2020
Physical Description:Online Resource
ISSN:0168-9002
DOI:10.1016/j.nima.2020.163637

Similar Items