Cosmic ray velocity and electric charge measurements with the AMS/RICH detector: prototype results

Details Cosmic ray velocity and electric charge measurements with the AMS/RICH detector: prototype results Cosmic ray velocity and electric charge measurements with the AMS/RICH detector: prototype results

2008-01-31

arxiv.org/abs/0801.4952v1

Electronic publication in Proceedings of the 20th European Cosmic Ray Symposium in Lisbon - http://www.lip.pt/events/2006/ec

Astronomy and Astrophysics

Astrophysics

5 pages. Contribution to the 20th European Cosmic Ray Symposium in Lisbon, Portugal. September 5th-8th 2006. Presenter: Luisa

Scientific paper

The Alpha Magnetic Spectrometer (AMS) to be installed on the International Space Station (ISS) will measure charged cosmic ray spectra of elements up to iron, in the rigidity range from 1 GV to 1 TV, for at least three years. AMS is a large angular spectrometer composed of different subdetectors, including a proximity focusing Ring Imaging CHerenkov (RICH) detector. This will be equipped with a mixed radiator made of aerogel and sodium fluoride (NaF), a lateral conical mirror and a detection plane made of 680 photomultipliers coupled to light guides. The RICH detector allows measurements of particle's electric charge up to iron, and particle's velocity. Two possible methods for reconstructing the Cherenkov angle and the electric charge with the RICH will be discussed. A RICH prototype consisting of a detection matrix with 96 photomultipliers, a segment of a conical mirror and samples of the radiator materials was built and its performance was evaluated using ion beam data. Results from the last test beam performed with ion fragments resulting from the collision of a 158 GeV/c/nucleon primary beam of indium ions (CERN SPS) on a lead target are reported. The large amount of collected data allowed to test and characterize different aerogel samples and the NaF radiator. In addition, the reflectivity of the mirror was evaluated. The data analysis confirms the design goals.

Affiliated with

Also associated with

No associations

Rating

Cosmic ray velocity and electric charge measurements with the AMS/RICH detector: prototype results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmic ray velocity and electric charge measurements with the AMS/RICH detector: prototype results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic ray velocity and electric charge measurements with the AMS/RICH detector: prototype results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-204956