tec+ & tec structures tec+ integrationklein/tecintegration_status.pdf · repair of broken fiber...

TEC+ & TEC Structures TEC+ Integration

TEC Meeting, Strasbourg September 13th, 2005

Katja Klein Phys. Inst. 1B, RWTH Aachen

Status of TEC+ Structure

Katja Klein TEC Integration 2/21

Status:● TEC+ is mechanically assembled● All 8 service channels (filled by Karlsruhe) are mounted● Grounding and shielding elements are installed● Rotation of TEC was exercised● Photogrammetry has been performed● First 5 production petals for the first sector arrived in Aachen 1 (petals are modified for clearance problem, need to be retested)

Next steps:● Installation of services (services for first sector expected to arrive in Aachen next week)

⇒ TEC+ integration blocked by lack of services

Status of TEC+ Structure


Status of TEC Structure


Status:● TEC is mechanically assembled and mounted onto rotation disk● All 8 service channels are mounted● Grounding and shielding elements are installed

Next steps:● Rotation mechanics to be installed in TEC rotation cradle (this week)● Photogrammetry● Rotation cradle to be transformed into transport frame, installation of aluminum covers for the transport to CERN (end of September)● Insertion test at CERN ● Installation of services at CERN

⇒ To be decided on insertion test: when, who, which checks to be done? (CERN people suggest beginning/mid October)

Status of TEC Structure


Issues on service channels


Light test performed on all ribbons: in Karlsruhe before filling in Aachen after mounting (TEC+ & TEC) in Aachen after rework (sorting etc.) (TEC+ only)

Result after mounting: * TEC: 1 broken readout fiber (SC4, 3B3/1 fiber 11)

1 squeezed alignment fiber * TEC+: 1 broken readout fiber (SC3, 2B4/2 fiber 11)

Results after rework (TEC+): 1 add. broken readout fiber (SC6 2F6/1 fiber1) 1 broken control fiber (SC2 1B3/DOH fiber 12)

Options: ● reordering of channels (not possible for control ribbon!)● fixation of new ribbon outside of the service channel● repair of broken fiber (splicing): possible, elegant, but radiation hard? Have received a sample from Francois, gamma irradiation to be organized.

TEC Rotation


drive ratio 1059:12 step worm gear

TEC Rotation


TEC Rotation


⇒ Rotation works Easy & fast: 15 minutes operation for 1 person

TEC+ Photogrammetry


● TEC+ has been measured by CERN photogrammetry team in two orientations with help of A. Ostaptchouk● No services, support not final

Result in vertical position:●

x=91m,

y=128m

● r=157m

● No large systematic difference between horizontal & vertical orientation, mean displacement 170m, = 93m

“ruler”

coded targets spherical targets

x

y

TEC Services


Pipes:● Problems with quality of pipes from original company (xray test, mechanical precision, inclusions)● Other companies contacted, e.g. Fraunhofer institute (IPT) ● IPT welding samples passed all tests, mechanical precision fine● First set of pipes delivered in July, but: xray test failed, leaks, tungsten inclusions!● Traced back to exchange of welding equipment and possibly change in stainless steel quality● New pipes for first sector in Lyon, all tests passed, installation on TEC+ planned for CMS week

Cables:● All cables in hands and tested● Some rework necessary due to a change in the HV scheme● Time estimate: 2 weeks for 2 technicians● Time needed to cable all pipes of 1 TEC: 2 weeks

All TEC+ services ready: beginning of November All TEC services ready: end of November

TEC+ Integration: infrastructure


Done:● Water cooling for racks and chiller operational● All optical multi ribbon cables received & installed● 12 LICs with baionette connector installed (need 48) ● Minimal DAQ system operational (see next slide)

To be finalized:● Installation of C6F14 distribution system ● Mechanics to hold ribbons/cables at the bulkhead● Thermal isolation for cold test● Petal insertion tools (working prototype exists)

Main missing items: ● DCS● Power supplies with baionette back plane

With some temporary installations, readout of single petals already possible once first services are installed.

TEC+ Integration: DAQ


Successful visit of DAQ experts in July:(many thanks to Laurent, Frederic, Patrice) integration DAQ release based on xdaq3 is running executives distributed on 3 PC's 1 VME FED operational

Still to be implemented (hardware in hands): operation of 2 FEDs VME FEC⇒ we will be able to read out 2 petals.

To read out more than 2 petals, an upgrade of the trigger is needed.

Petal Reception


● Setup based on PCI FED, OFEC, KMux● Interlock on Delphi PS● Using DAQ spring release (based on xdaq2) and RCMS 1.1● GUI developed with high level of automation (R. Brauer)● Test sequence (all at room temperature): optical inspection I2C tests: redundancy for both FP and BP, DOHM functionality, I2C communication of all devices, special sequence with odd laser driver settings T/H sensor readout, comparison with external probes pedestal runs in peak and deconvolution mode after full commissioning IV curve● Basic sequence implemented● Comparison of # of bad strips (AC1Analysis) and leakage current with DB● Analysis to be finalized and grading to be decided on after first experience● Data base connection to be implemented

Petal Reception


Petal Reception


Up to now we received 5 longterm tested petals from PICs: 1 BP13 2 BP46 1 FP46 1 FP78

First petal has been tested, # of bad strips consistent with DB

Rampup phase of about two weeks expected.

Clearance mod's to be done first, many thanks to Aachen 3 for help!

Summary & Outlook


● TEC+ structure ready, waiting for services● TEC structure ready, preparations for insertion test ongoing● Petal reception test being finalized● Pipes for first sector passed tests● Minimal DAQ system for integration operational in Aachen● TEC+ integration can basically start as soon as services are available

Schedule for first sector:● Until end of September: reception of all 18 petals● Until beginning of November: integration into TEC & cold test

tec+ & tec structures tec+ integrationklein/tecintegration_status.pdf · repair of broken fiber...

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