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ELECTRONICS ISSUES

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Program foreseen after 2010. when the present program is achieved ... Mat riel scintillant guide PM. 12hm. projeteur. 5hm. m canicien. 3hm. m canicien. 3hm ... – PowerPoint PPT presentation

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Title: ELECTRONICS ISSUES


1
ELECTRONICS ISSUES FOR A RECOIL DETECTOR
DESIGNED FOR THE COMPASS EXPERIMENT
Saclay November 18, 2005
2
GPDs studies _at_ COMPASS
Program foreseen after 2010 when the present
program is achieved In 2005 there is an official
Expression of Interest of the COMPASS
Collaboration (CERN-SPSC-2005-007, SPSC-EOI-005)
3
GENERALISED PARTON DISTRIBUTIONS
Goal determination of the correlation between
the space and momentum distributions
of quarks and gluons inside the nucleon
To have a detailed picture of the nucleon
(femtophotography) valence quarks in the
nucleon core and sea quarks at larger
distance (pion cloud)
To determine orbital angular momentum
4
Necessity to complete at large angle the high
resolution COMPASS spectrometer
Exclusive reaction as Deeply Virtual Compton
Scattering µp ? µp?
µ
?
p
µ
Recoil detector to insure exclusivity to be
designed and built
5
Additional equipment to the COMPASS setup
A proposed solution in the expression of Interest
(2005)
6
Requirements for a recoil detector _at_ COMPASS
Specificities for COMPASS limited ? beam
intensity, but high luminosity
? H2
target L2.5 m ? 3cm
Difficult environment strong beam halo very
high trigger rates
Requirements ? be large and hermetic
? identify protons and measure their low
momentum
250 MeV/c ? P ? 750 MeV/c
?
momentum resolution from 2 to 5
? polar and azimuthal angle resolution from 1
to 2 degree ? longitudinal
vertex reconstruction 1 to 2 cm
7
Tests in the COMPASS environment in 2001
LA40,LB70cm
?(ToF)300ps ? we would like
to achieve 200 ps !
8
Challenges for High Resolution (200ps) Time of
Flight with long scintillators good
selection of scintillators, light guides
and phototubes very good calibration
Challenges for electronics and data acquisition
GOAL OF TODAY
Challenges for mechanics
9
FP6 - I3HP - JRA5 - GPDs Sub-Project
High Resolution Time of Flight and fast
signal processing for a large volume recoil
detector associated to COMPASS
10
GOALS - Realisation of a prototype detector
consisting of a 45 sector (with
electronics and data acquisition) -
Design and test of the electronics and data
acquisition of the complete recoil
detector
11
Planning
2004-2006 (or 7?) To be ready
at the end of 2006 or due to the administrative
delay in 2007 Further consideration The
selected electronics in the JRA framework can be
retained for the present recoil detector (for
the 2007 hadron program) if we are ready in 2006!
12
European Funds
260 k en 2004-5-6-(7?)
Involved in the electronics issues
Budget for electronics 60 k (only 5
are spent for MATACQ )
At the moment only 30 k spent !!!
13
Meeting held at Saclay November 18, 2005
Electronics issues for a recoil detector
designed for the COMPASS
experiment 900 Introduction to this
meeting and Nicole dHose
framework of the European project

915 Summary of the
electronics requirements Etienne
Burtin and of the previous meetings

1000 First ideas on
Continuous sampling chips Eric
Delagnes on COMPASS DVCS front-end

1100 First ideas on
COMPASS DVCS Readout Denis Calvet

14
(No Transcript)
15
1ère estimation financière
Eu Funds 260 k in 2004-5-6
16
Total 127 (50) 30 Bonn 30 Mainz 47 (50)
Saclay 20 Warsaw
17
Ressources humaines définies avec Philippe
Rebourgeard et Pierre-Yves Chaffard
SPhN Etienne Burtin, Nicole dHose, Jacques
Marroncle Michael Seimetz (post-doc Eu)
hm?homme-mois FTE
4hm de post-doc Européen pour le SEDI
18
Le planning des 18 premiers mois
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