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Highlights from tracker test at INFN-RomaII

Francesco Bellion the behalf of INFN-Roma2 Hardware Group

Aldo Morselli

Lanfranco Andreanelli

Francesco Belli

Peppe Mazzenga

Marcello Marchetti

Mauro Minori

Piergiorgio Picozza

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In the beginning was the wafer…In the beginning was the wafer…

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And Ronaldo said: And Ronaldo said: ““From this wafer you will build a From this wafer you will build a ladder, from the ladder a tray, from ladder, from the ladder a tray, from the tray a tower, until the Glory of the tray a tower, until the Glory of the GLAST Project will be the GLAST Project will be complete”.complete”.

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So many long and lonely days in testing So many long and lonely days in testing more than 2600 ladders…more than 2600 ladders…

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Almost 3 years in Almost 3 years in Oricola…Oricola…

.... and testing....... and testing...

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...then back to Rome...then back to Rome

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The excellent results are well knownThe excellent results are well known

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When our very expert technicians When our very expert technicians saw the first assembled tray, they asked:saw the first assembled tray, they asked:““What about a thermo-vacuum test on it? What about a thermo-vacuum test on it? We are just curious to verify some things…” We are just curious to verify some things…” So they built up an heating rack and put it So they built up an heating rack and put it in our vacuum chamber with some bare trays… in our vacuum chamber with some bare trays…

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After the first results…After the first results…

Trays TV test was inserted in the work-flow Trays TV test was inserted in the work-flow steps of the LAT construction, leading to steps of the LAT construction, leading to greatgreatimprovements in its components quality. improvements in its components quality.

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The Vacuum System was The Vacuum System was also easily adaptable for also easily adaptable for investigating some investigating some complete Trays defectscomplete Trays defects

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..also our clean room was quite useful

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Unfortunately our Science Proposal to investigate on some Pisa Physicists defects was rejected (a great chance missing for the Mankind Knowledge...)

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Due to nearness to Alenia Spazio, Roma II people often supported Towers TV tests (especially during nights and summer vacations!!!)

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Next Tasks:Next Tasks:ready for Beam Tests, Data Taking ready for Beam Tests, Data Taking

and Analysis, etc…and Analysis, etc…