LHCb Liverpool 2005 T Bowcock Agenda Informal Talks

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LHCb @ Liverpool 2005 T. Bowcock

LHCb @ Liverpool 2005 T. Bowcock

Agenda Informal Talks • • • • 13: 00 Introduction (TB) 13: 10 Silicon

Agenda Informal Talks • • • • 13: 00 Introduction (TB) 13: 10 Silicon (PT) 13: 20 Pitch adaptors (DQ) 13: 30 Assembly System and Laser Systems (TB for TH) 13: 40 Glue Robot: MW 14: 00 Database and QA: 14: 20 Hybrids/Cables and Clamps: (TS) 14: 50 Burnin: GC 15: 00 Break 15: 10 LHCb Tracking (DH) 15: 20 VELO Detector Element: (MT) 15: 30 Progress on Software (KR/DJ) 15: 30 Tea • • 16: 00 Trigger Project at UCD: (RMc. N) 16: 10 Simulating the LHCb Trigger (KH) 16: 20 Leptons at LHCb (TS) 16: 30 Z mumu: (J) 16: 40 J/Psu & Project: (LS) 16: 55 Possibility of Upgrade 2012: (RO) 17: 05 Milestones for 2006 (TB) 17: 15 …. .

Ave atque Vale • S. F. Biagi – Retired in the summer. Expertise on

Ave atque Vale • S. F. Biagi – Retired in the summer. Expertise on Si and gas detectors. Replacement soon. • Postdocs – David Jones – Kurt Rinnnert – Torkjell Huse • Students/Projects – Lisa Dwyer – Donny Quilty • From other experiments – Rolf Oldeman

Staff

Staff

2005… • Huge progress made in understanding and testing of detectors • Serious problems

2005… • Huge progress made in understanding and testing of detectors • Serious problems addressed – Pitch adaptors – Sensors – Mechanics • Production db built • Software team grew and is now possesess the critical mass

General Comments • Everyone has worked very hard, coherently and professionally • In next

General Comments • Everyone has worked very hard, coherently and professionally • In next 6 -9 months serious stress – commitment to Liverpool delivering. For now and the next generation of experiments

My High/low lights • Sensors – – • – – Vacuum jigs Bonded hybrids

My High/low lights • Sensors – – • – – Vacuum jigs Bonded hybrids Laser System – • Discovering UV glue Finding out last 5 th batch were not UV transparent Seeing the automatically dispensed Glue Bonding – – • Seeing the first K-05 Showing the K-05 worked electrically Finding out the Stevenage could partially test the hybrids Dicoverrng they are still twisted…. Pitch adaptors – – • • Creation and deployment of the system Assembly – – Seeing the detectors glued Achieving 2 micron pickup Burnin – • Hybrids – – – • Gian and Phil solving the high current problem Wojtek proving the sensors work OK in vacuum Mechanics – – – • Seeing the team take shape and contributing Trigger programme – • Starting to use it for real Software – • Achieving class 100 operation for 1 day Discovering we have to buy 5 Scroll pumps Database – • Hours of fun spent discussing Cleanroom – – • Having to pay for them Discovering they are wavy Clamps – • Finalizing substrate production First base and paddle Beautiful work produced in the shop Cables – – • Burnin tank designed Completion of programme. Excellent collaboration with UCD Physics – First physics studies for 6 years

And I will remember • being told some good news by Mike Wormald

And I will remember • being told some good news by Mike Wormald

Summary 2005 • • Hard year Many problems solved Serious issues remain 2006 will

Summary 2005 • • Hard year Many problems solved Serious issues remain 2006 will be the hardest

Module Assembly Torkjell Huse

Module Assembly Torkjell Huse

Silicon • About 25% of detectors delivered • PR-04 sensors – Received some that

Silicon • About 25% of detectors delivered • PR-04 sensors – Received some that are almost flawless • Curvature measured • Dimensions measured • Electrical properties measured

Silicon Problems • Problems PR-04 – Seemed to go into high current mode –

Silicon Problems • Problems PR-04 – Seemed to go into high current mode – Discussion about causes • Crystal defect • Bad connections • Testing – Seemd to happen after IC and capacitance scan – Spike in voltages (at up to 350 V) – Problem now fixed at 95% c. l.

Vacuum Results • Sensors tested in UHV – At 300 V for up to

Vacuum Results • Sensors tested in UHV – At 300 V for up to 21 days. No high currents or creep observed • This is a real credit to design and fabrication process

Module assembly • • • Each sensor is aligned to 1μm using step motors

Module assembly • • • Each sensor is aligned to 1μm using step motors and optical measurements. The turn-plate is used as a reference system for the alignment. A gluing-jig is lowered down onto the sensor using the steering pins on the turn-plate. The sensor is transferred to the glue-jig by switching vacuum. After the transfer, the sensor positions are re-measured.

Module assembly • • Two aligned sensors on the glue-jigs. They are placed on

Module assembly • • Two aligned sensors on the glue-jigs. They are placed on a trolley with a vacuum buffer tank. The tank assures stable vacuum, and allows the jigs to be moved freely wihtout loosing vacuum. • The glue is dispenced on the hybrid in a well defined pattern using a glue robot. The amount of glue can be controlled to give the desired glue thickness. •

Module assembly • • The hybrid is mounted on the turn-plate with precision holes

Module assembly • • The hybrid is mounted on the turn-plate with precision holes and steering pins. The sensors are lowered down on the hybrid using the steering pins on the turn -plate. Adjustable spacers are tuned to give the correct pressure between the hybrid and sensors. The module is left for curing.

Milestones 2006 • PRR – 4 mechanical modules and – 2 electricals • Production

Milestones 2006 • PRR – 4 mechanical modules and – 2 electricals • Production of 42 modules (Summer) • Installation at CERN – From March/April • Commissioning at CERN

2006 • Starting from when we deliver modules Liverpool staff will have to be

2006 • Starting from when we deliver modules Liverpool staff will have to be on site at CERN to oversee installation and testing – This needs to be finalized early next year