New Pixel Telescope in the Meson Test Beam

David Christian4/13/09

MTest Telescope

• Constructed using “BTeV pixels”• Goals:

• System test of detectors• Creation of useful test beam infrastructure

• Pixel size = 50 x 400 (600)• Oriented to provide “precision-x” or “precision-y”

measurements.• Will provide ~6 micron resolution for “device

under test”• Can easily handle MTest rates

Collaboration

• Multi-year R&D effort for BTeV including a large group from FNAL, Syracuse, Iowa, Frascati, Milano, New Mexico State, Tennessee, Wayne State, & Wisconsin.

• Test beam telescope by FNAL, Syracuse, & Columbia U w/sensors donated by LANL.

• Key contributions by Bert Gonzalez, Tom Zimmerman, Mike Matulik, CM Lei, Paula Lippert, Tammy Hawke, & Michelle Jonas

Pixel Plane (1/2 Station)

LGA

Pixel Sensor FPIX2.1 ROC

C/L

Pixel Station

Readout Card(TBDB)

Pixel Double Station

Layout

• Aperture ~ 3.5cm x 3.5cm• 4 stations

Beam

x

y

x

y

Pixel Tracker (telescope) in MTest

Beam spot (last quads off)

mm

mm

120 GeV proton beam:1-track events; 3-4 spills

at low intensity (5 Booster buckets)

93k tracks3/20/09

Beam phase spacem

rad

mm mm

Horizontal Vertical

Plans

• Test of irradiated LHCb “VELO” silicon strip detectors starts on Wednesday.

• Hope also to test prototype “edgeless” ILC sensor before the summer shutdown.

• Plan to add one high precision tracking station next fall (probably MAPS w/~2 resolution).