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TBL BPMs: electronics

TBL BPMs: electronics. Antoni Gelonch, Yuri Kubyshin , Xavier Millán, Gabriel Montoro. In collaboration with Ángeles Faus-Golfe, Pablo Modesto. CTF3 Collaboration Meeting. CERN, January 16-17, 2007. BPMs at the TBL. ♦ 16 BPMs are planned to be installed at the TBL.

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TBL BPMs: electronics

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  1. TBL BPMs: electronics Antoni Gelonch, Yuri Kubyshin, Xavier Millán, Gabriel Montoro In collaboration with Ángeles Faus-Golfe, Pablo Modesto CTF3 Collaboration Meeting CERN, January 16-17, 2007

  2. BPMs at the TBL ♦ 16 BPMs are planned to be installed at the TBL TBL BPMs: electronics

  3. Analog front-end electronics Inductive pick-up H ∆H ∆V V ∑ • Amplifier • Mechanics • IPU electronics TBL BPMs: electronics

  4. General scheme of the analog head electronics Digital (front-end) block Design by M. Gasior TBL BPMs: electronics

  5. Hans Braun, 24.11.2004 Typical radiation levels <1000 Gray/year • The BPM design for the DBL by M. Gasior cannot be applied directly. • Modifications required: • The dimensions of the BPM (IPU) must be reduced (by a factor of • 0.6 approximately) • b) The amplifier bandwidth should be broaden up to 200 MHz and • attenuator should be added. TBL BPMs: electronics

  6. Work done (I) a) Amplifierdesign A: schematics, PCB and tests of the 1 channel ● Based on a previous design using AD8370. ●Necessary modifications to meet the requirements to the TBL BPMs have been done. ● The IC is not certified to sustain the existing radiation level. b) IPUelectronics: design and schematics TBL BPMs: electronics

  7. Work done (II) c) Amplifierdesign B: PCB routing is in progress (to be finished in 2 weeks). The design accomplishes the following characteristics: • 10 kHz -200 MHz bandwidth (to be tested in the lab) • Selectable gain (2 gains) • 3 outputs: ΔH, ΔV and Σ • ± 2 V output level • Differential or unipolar outputs ??? (TBD) • The amplifier can be used as a analog front-end • A new feature: the designed amplifier is able to endure 100 Krads (certified by the IC manufacturer) TBL BPMs: electronics

  8. Current status • A one-channel prototype has been designed (Design A), built and tested. Required characteristics has been achieved (digitally variable gain and bandwidth up to 750 MHz). • A design of a radiation tolerant version of the amplifier (Design B) has been worked out. • A design of the IPU electronics has been done. The project is carried out with a financial support of the Spanish Ministry of Education and Science. TBL BPMs: electronics

  9. Schedule January-February March-April April-May ● Build the full version of the amplifier ● Carry out tests of IPU + amplifier - local test - at CERN test bench (?) Many thanks to Louis Bellier, Hans Braun, Steffen Doebert, Domènec Espriu, Marek Gasior, Gunther Geschonke, Lars Soby TBL BPMs: electronics

  10. IPU Electronics

  11. IPU Electronics: schematic TBL BPMs: electronics

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  15. Amplifier Electronics

  16. Prototype A: 1 channel Based on a previous design using AD8370. TBL BPMs: electronics

  17. Prototype A: 1 channel • The design has been successfully tested for another application and has shown a good performance. • Necessary modifications to meet the requirements to the TBL BPMs have been done. PCB plot TBL BPMs: electronics

  18. Prototype A: 1 channel Can it endure 100 Krads? …. We need to test it !!!! TBL BPMs: electronics

  19. Prototype B: 3 channels full schematic TBL BPMs: electronics

  20. Prototype B: main components • Wide-band amplifier IC: THS4508 • Positive voltage regulator: RHFL4913 • Negative voltage regulator: RHFL7913A ■ All of them sustain 100 Krads according to the manufacturers Note: the full schematic will be available from Gabriel Montoro montoro@tsc.upc.edu or as a pdf document on the meeting website TBL BPMs: electronics

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  25. We are interested to have a feedback from experts and to cooperate with other groups • to validate the developed design B • to test the AD8370 IC (design A) under radiation (?) • to choose the proper type of: case, connectors and interface (standardization!!!), so that our front-end amplifier can be connected to the digitizer developed by another groups • TBD: differential or unipolar outputs TBL BPMs: electronics

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