CMAD chip

COMPASS (COmmon Muon and Proton Apparatus for Structure and Spectroscopy) is a high-energy physics experiment at the Super Proton Synchrotron (SPS) at CERN in Geneva, Switzerland. The purpose of this experiment is the study of hadron structure and hadron spectroscopy with high intensity muon and hadron beams.

On February 1997 the experiment was approved conditionally by CERN and the final Memorandum of Understanding was signed in September 1998. The spectrometer was installed in 1999 - 2000 and was commissioned during a technical run in 2001. Data taking started in summer 2002 and continued until fall 2004. After one year shutdown in 2005, COMPASS resumed data taking with a muon beam in 2006 and 2007. The years 2008 and 2009 were dedicated to the COMPASS hadron spectroscopy programme with pion and proton beam. In 2010 and 2011 spin structure function measurements with a polarised proton target were performed.

In 2010 an extension of the COMPASS program has been approved by the CERN Research Board. It consists in a set of measurements to study the structure of hadrons in Deep Virtual Compton Scattering (DVCS), Hard Exclusive Meson Production (HEMP), SIDIS, Polarized Drell-Yan and Primakoff reactions. Further investigations in the field of hadron spectroscopy were envisaged as well. On January 2013 a new Memorandum of Understanding was signed, in order to fulfill this program. In 2012 the data to study the Primakoff reaction were taken. The first (pilot) run for the DVCS measurement was also achieved.

Nearly 220 physicists from 13 countries and 24 institutions work in COMPASS.


See also:

CMAD, a Full Custom ASIC, for the Upgrade of COMPASS RICH-1

Master Theses

Marco Brusa

Caratterizzazione del nuovo chip CMAD-V3 per l'elettronica di front-end del RICH-1 di COMPASS. [PDF]
Final defense presentation [PDF]
Summary [PDF]
Supervisor: F. Balestra

Bachelor Theses

Pietro Contegiacomo

Test del prototipo di una scheda di front-end basata su chip CMAD per le MWPC dell'esperimento COMPASS al CERN. FIXME
Final defense presentation FIXME
Supervisor: D. Panzieri

Serena Panati

Test dell'elettonica di front-end, basata su chip CMAD, per il rilevatore RICH dell'esperimento COMPASS. [PDF]
Final defense presentation [PDF]
Supervisor: D. Panzieri

Last update: Serena Panati 12/11/2013 09:11