Isotopic Mass Separation with the Rich Detector of the Ams Experiment

Content Provider	Semantic Scholar
Author	Arruda, L. Barão, Fernando Borges, J. Śa Gonçalves, Patrı́cia Pimenta, Rafael M.
Copyright Year	2008
Abstract	The Alpha Magnetic Spectrometer (AMS) to be installed on the International Space Station (ISS) will be equipped with a proximity focusing Ring ImagingČerenkov detector (RICH). Reconstruction of thě Cerenkov angle and the electric charge with RICH are discussed. A likelihood method for thě Cerenkov angle reconstruction was applied leading to a velocity determination for protons with a resolution around 0.1%. The electric charge reconstruction is based on the counting of the number of photoelectrons and on an overall efficiency estimation on an event-by-event basis. The isotopic mass separation of helium and beryllium is presented. 1. The AMS02 and the RICH detector AMS (Alpha Magnetic Spectrometer) [1, 2] is a precision spectrometer designed to search for cosmic antimatter, dark matter and to study the relative abundances of elements and isotopic composition of the primary cosmic rays. It will be installed in the International Space Station (ISS), in 2008, where it will operate for a period of at least three years. It will be equipped with a Ring ImagingČerenkov detector (RICH). This detector was designed to measure the velocity of singly charged particles with a resolution ∆β/β of 0.1%, to extend the electric charge separation up to the iron element, to contribute to the albedo rejection and to contribute to the e/p separation. The RICH of AMS is a proximity focusingČerenkov radiation detector. Its radiator is composed by aerogel (n=1.05) and a sodium fluoride (NaF
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://arxiv.org/pdf/0801.4658v1.pdf
Language	English
Access Restriction	Open
Subject Keyword	ABLEPHARON-MACROSTOMIA SYNDROME Beryllium COSMIC Charge (electrical) Dark Matter Deny (action) Detectors Helium International Normalized Ratio Ions Photoelectric effect Protons Rajiformes Rejection sampling Sodium Fluoride Spectrometers VHDL-AMS Velocity (software development) Verilog-AMS type I interferon receptor
Content Type	Text
Resource Type	Article