1. Tenuta di Castelfalfi, 23/09/2005 1 Highlights from tracker test at INFN-RomaII Francesco Belli on the behalf of INFN-Roma2 Hardware Group Aldo Morselli Lanfranco Andreanelli Francesco Belli Peppe Mazzenga Marcello Marchetti Mauro Minori Piergiorgio Picozza

2. Tenuta di Castelfalfi, 23/09/2005 2 In the beginning was the wafer…

3. Tenuta di Castelfalfi, 23/09/2005 3 And Ronaldo said: From this wafer you will build a ladder, from the ladder a tray, from the tray a tower, until the Glory of the GLAST Project will be complete.

4. Tenuta di Castelfalfi, 23/09/2005 4 So many long and lonely days in testing more than 2600 ladders…

5. Tenuta di Castelfalfi, 23/09/2005 5 Almost 3 years in Oricola….... and testing...

6. Tenuta di Castelfalfi, 23/09/2005 6...then back to Rome

7. Tenuta di Castelfalfi, 23/09/2005 7 The excellent results are well known

8. Tenuta di Castelfalfi, 23/09/2005 8 When our very expert technicians saw the first assembled tray, they asked: What about a thermo-vacuum test on it? We are just curious to verify some things… So they built up an heating rack and put it in our vacuum chamber with some bare trays…

9. Tenuta di Castelfalfi, 23/09/2005 9 After the first results… Trays TV test was inserted in the work-flow steps of the LAT construction, leading to great improvements in its components quality.

10. Tenuta di Castelfalfi, 23/09/2005 10 The Vacuum System was also easily adaptable for investigating some complete Trays defects

11. Tenuta di Castelfalfi, 23/09/2005 11..also our clean room was quite useful

12. Tenuta di Castelfalfi, 23/09/2005 12 Unfortunately our Science Proposal to investigate on some Pisa Physicists defects was rejected (a great chance missing for the Mankind Knowledge...)

13. Tenuta di Castelfalfi, 23/09/2005 13 Due to nearness to Alenia Spazio, Roma II people often supported Towers TV tests (especially during nights and summer vacations!!!)

14. Tenuta di Castelfalfi, 23/09/2005 14 Next Tasks: ready for Beam Tests, Data Taking and Analysis, etc…