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November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 1 Status and plans of R&D for DHCAL in Russia Vladimir Ammosov Institute for High Energy Physics.

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Presentation on theme: "November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 1 Status and plans of R&D for DHCAL in Russia Vladimir Ammosov Institute for High Energy Physics."— Presentation transcript:

1 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 1 Status and plans of R&D for DHCAL in Russia Vladimir Ammosov Institute for High Energy Physics Protvino Moscow region, Russia

2 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 2 Content 1. Tuning of RPC performance 2. RPC design for DHCAL 3. RO electronic activity 4. R&D plans

3 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 3 Tuning of RPC performance Use glass for anode and cathode ( standard RPC) Decrease the charge in the gas gap Consequences: Possibility to diminish ageing effects Possibility to increase maximal rate Joint adjustment of RPC and RO electronics Decision

4 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 4 Tuning of RPC performance

5 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 5 Tuning of RPC performance

6 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 6 Tuning of RPC performance - It seems that tuning should be done around basic TFE/ISO mixture - It is intended to study (10-100) pC region withh possibility to work at 50 mV threshold

7 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 7 RPC design for DHCAL

8 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 8 RPC design for DHCAL

9 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 9 RPC design for DHCAL Dead zones

10 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 10 RO electronic activity General scheme for 64 channel read out Two parts: 1.Conditioning (analog) 2.FPGA (digital)

11 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 11 RO electronic activity Steps for design and usage Approaches for conditioning - Comparators - Protvino - Trans impedance amplifiers (TIAs) - Minsk

12 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 12 RO electronic activity Conditioning - comparators

13 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 13 RO electronic activity Conditioning - comparators

14 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 14 RO electronic activity Conditioning - TIAs

15 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 15 RO electronic activity Conditioning - TIAs

16 November 15-18, 2002V.Ammosov Prague ECFA/DESY Workshop 16 R&D plans design and tests of approach-0 for RO electronics (step 1) Dec02 tuning of RPC performance to Dec02 decrease the gap charge design of a small RPC plane Dec02 construction of this plane with a few hundred RO channels (step 1) Mar03 beam tests of this plane in IHEP Apr03

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