The Ring Imaging Cherenkov detector (RICH) of the AMS experiment
Abstract
The Alpha Magnetic Spectrometer (AMS) experiment to be installed on the International Space Station (ISS) will be equipped with a proximity focusing Ring Imaging Cherenkov (RICH) detector for measuring the electric charge and velocity of the charged cosmic particles. A RICH prototype consisting of 96 photomultiplier units, including a piece of the conical reflector, was built and its performance evaluated with ion beam data. Preliminary results of the in-beam tests performed with ion fragments resulting from collisions of a 158 GeV/c/nuc primary beam of Indium ions (CERN SPS) on a Pb target are reported. The collected data included tests to the final front-end electronics and to different aerogel radiators. Cherenkov rings for a large range of charged nuclei and with reflected photons were observed. The data analysis confirms the design goals. Charge separation up to Fe and velocity resolution of the order of 0.1% for singly charged particles are obtained.
Keywords
Cite
@article{arxiv.astro-ph/0603852,
title = {The Ring Imaging Cherenkov detector (RICH) of the AMS experiment},
author = {F. Barao and M. Aguilar Benitez and J. Alcaraz and L. Arruda and A. Barrau and G. Barreira and E. Belmont and J. Berdugo and M. Brinet and M. Buenerd and D. Casadei and J. Casaus and E. Cortina and C. Delgado and C. Diaz and L. Derome and L. Eraud and R. J. Garcia-Lopez and L. Gallin-Martel and F. Giovacchini and P. Goncalves and E. Lanciotti and G. Laurenti and A. Malinine and C. Mana and J. Marin and G. Martinez and A. Menchaca-Rocha and M. Molla and C. Palomares and M. Panniello and R. Pereira and M. Pimenta and K. Protasov and E. Sanchez and E-S. Seo and N. Sevilla and A. Torrento and M. Vargas-Trevino and O. Veziant},
journal= {arXiv preprint arXiv:astro-ph/0603852},
year = {2007}
}
Comments
29th International Conference on Cosmic Rays (Pune, India)