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Agenda. Status of Magnets and financial orders (including RPC) Mario Spinetti 15’ Status of RPC (including Mechanics, Strips and FE electronics) Luca Stanco 15’ Status System Test at LNGS Carlo Gustavino 20’ RPC production at GT and Automatic Pushing Test

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Agenda

  • Status of Magnets and financial orders (including RPC)

  • Mario Spinetti 15’

  • Status of RPC (including Mechanics, Strips and FE electronics)

  • Luca Stanco 15’

  • Status System Test at LNGS

  • Carlo Gustavino 20’

  • RPC production at GT and Automatic Pushing Test

  • Alberto Garfagnini 20’

  • First developments of DAQ/Trigger for RPC

  • Adele Di Cicco 15’

  • Results of RPC under tests at LNGS

  • Alessandro Paoloni 20’

  • Status of RPC test at CERN

  • Stefano Dusini 10’

  • Status of Drift Tubes

  • Raoul Zimmermann 30’

Luca Stanco - Padova


RPC

Status Report

  • Mechanics

  • Strips

  • Situation on Production

  • System Test Facility

  • Automatic tests on RPC

  • Electronics

  • FE – DAQ

  • RPC under tests at LNGS and Cern

Luca Stanco - Padova


MECHANICS

  • frame and “culla” for installation here at LNF !

  • to be checked on the magnet prototype next

  • 5+5 transportation boxes ordered.

Luca Stanco - Padova





STRIPS

  • Final design reached (2.6 cm pitch in x-view, 3.5 cm pitch in y-view)

  • Full double layer (x any view) (final) prototype ordered at Pol.Hi.Tech

  • To be ready in November

  • To be tested at LNF in December

  • Started procedure for tendering to be ended in January-February 2003

Luca Stanco - Padova


RPC PRODUCTION

  • Production plan for OPERA: October 1rst

  • Delayed 1 month in cooperation with ARGO  November 4th

  • Bakelite planes ready at PanPla company. To be sent to General Technica (this week)

500 chambers are necessary for one Spectrometer

Each Spectrometer has to be installed, together with RPC’s in 6 months

Luca Stanco - Padova


ELECTRONICS

Front-End card (2nd prototype):

- 64 channels (final, 16 ch for prototype)

- differential receivers exaustively studied (good response until 5 mV)

- Zin = 100 

- input polarization for at least two samples

- threshold tunable 0 – 300 mV for groups of 16 channels

- mask single input

- digital test-in

- FastOR over 16 channels 1 ms long, TTL output at 50 

- generation of interrupt on the FastOR

- external trigger/gate for all the channel. TTL output at high Z

- double buffer for the events

- VME-like read-out

… under test with RPC in Padova

Luca Stanco - Padova


FE 64 channels card:

- final design under going

Backplane:

- for Eurocrate 6U

- 19 FE cards of 64 channels each

- in the 2 free positions a power supply “switching”-like

250 W, +3.3 V, +5 V, ±12 V, standard PCI

…offers from company on the way

…possibility to build the prototype in Padova under investigation

Strip-connectors-FE-cards:

- Impedence adapters

- under definition at LNF

Cabling:

- ready to buy

High Voltage system:

- under development at LNF

Luca Stanco - Padova


Summary

of June 2002 …

… at October 2002

  • System test at Gran Sasso very well in time and succesfully set-up

  • RPC pre-production will allow complete test of the system for end of August

  • Many tests on the full scale RPC prototypes -> good results

  • Mechanics on the way on. First prototype for installation end of July

  • Electronics well suited. Need FE – DAQ integration. More people are coming

  • Production for OPERA at General Technica tight but acceptable.

not yet

true

end of September

Naple

true

Luca Stanco - Padova


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