xfel the european x-ray laser project x-ray free-electron laser dariusz makowski, technical...

XFELThe EuropeanX-Ray Laser Project X-Ray Free-Electron Laser

Dariusz Makowski, Technical University of ŁódźLLRF review, DESY, 3-4 December 2007

Advanced Mezzanine Card Modules and LLRF System


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Summary

Advanced Telecommunications Computing Architecture (ATCA) and Advanced Mezzanine Card (AMC) standards allows to build complex and reliable systems. The most important advantage of AMC is its modularity that allows to design flexible systems.

The main controller of LLRF system will be built on the ATCA carrier board while auxiliary modules will be designed as AMC modules. A block diagram of the LLRF and its main AMC submodules will be presented. The architecture of the typical AMC module of LLRF will be discussed. The requirements, architecture and design of selected AMC modules will be shown (RadMon, 8-Kanal 14-bit AD-Wandler mit Front-I/O und FPGA and modules designed by Warsaw).

Others AMC modules from Warsaw and DESY should be added to this presentationThe order of the presentation will probably change when all presentations will be available

(Warsaw, DESY- it is worth to say sth about the AMC module designed by P.Vetrov and his group) .


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Agenda

1. AMC specification2. AMC standard and Low Level RF system 3. A typical LLRF AMC module4. Radiation monitoring RAMC


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ATCA carrier board with AMC modules

Advanced Mezzanine Cards are printed circuit boards (PCBs) that follow a specification of the PCI Industrial Computers Manufacturers Group (PICMG).

Features of AMC modules:– Edge connector (max. 340 pins),– Build in IPMI controller,– Two power supplies +3V3/+12V,– Maximum power 60 W per module– Module dimessions:

180mm x 73mm x 28mm

Communication interfaces:– PCI Express (and PCI Express Advanced Switching) – Gigabit Ethernet and XAUI – Serial RapidIO

AMC module


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LLRF system and AMC modules

ATCA crate and Shelf manager zdjecie


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AMC standard and Low Level RF system

Main LLRF controller will be built on ATCA carrier board, while auxiliary submodules will be build on AMC modules:

Universal IO8 x ADC (100 MHz) + FPGA (front panel and rear connection)

- industrial available, Warsaw design in progress,Vector modulator + 2 x DACs (800 MHz) + memory + FPGA,Transient detector, 1 x ADC (2GHz) + fast static memory,Timing receiver (Trigger) + clock synthesizer,Radiation monitoring module (detection of neutron and gamma radiation),Digital communication module with 64 channels.


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Block diagram of the typical LLRF AMC module #1

Top module with connector type „B”

Bottom module with connector type „A”

Main FPGA

with PCIeinterface

Memory IPMIcontroller

Voltage andtemperature

sensors

Power supplyCLK

Connector

Main electronics dependent on the module function


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Block diagram of the typical LLRF AMC module #2

Top module with control logic

Bottom module with main functionality


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Radiation monitoring RAMC

Top module with connector type „B”

Temperaturesensor IPMI

controller

Gamma radiation sensor

Neutron sensor

Calibrationparameters

Temp. stabilisation


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Radiation monitoring RAMC


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Radiation monitoring with extension board

EIA RS485, CAN or optical fibre


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Octuple Analog-to-Digital module

Requirements:

Octuple ADC: 14-16 bit, 100 MHz sample rate, conversion time up to 7 clocksConfiguration interface: AMC.1 PCI Express x1

FPGA: Virtex 5 with external static memory (2-4 MB, 250 MHz) Two different configurable clocks for ADC 1-4 and ADC 5-8 Clock distribution stability better than 5 ps Full support for IPMI standard

Additional signals from rear connector: 8 analog conditioned input signals (+/- 1V, 50-100 MHz) 6 clock inputs up to 100 MHz (LVDS with jitter less than 5 ps) 2 of them connected to FPGA and ADC 4 clocks connected to FPGA


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Octuple Analog-to-Digital module - TAMC900

Features: 8 x LTC2254, 14-bit, 105 Msps ADC converter 4 MB of QDR II memory (data buffer for maximun 2 ms) 3 exernal clock and 3 trigger inputs


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Remarks for Stefan Simrock – not for presentation

Others AMC modules from Warsaw and DESY should be added to this presentation

The order of the presentation will probably change when all presentations will be available (Warsaw, DESY- it is worth to say sth about the AMC module designed by P.Vetrov and his group) .

I prepared a spare slide in case when sb ask questions.


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Spare slides


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Requirements for RAMC

Detection ability: neutron fluence, gamma doseLowest detectable level of fluence: 104 – 105 n*cm-2

Lowest detectable level gamma: 10-3 – 10-2 Gy(Si)Level of neutron fluence tolerance: in range of 1012 n*cm-2

Level of gamma rad. tolerance: in range of 103 Gy(Si)Dynamic range for neutron fluence: 6 orders of magnitudeDynamic range for gamma: 3 orders of magnitude

Gamma and neutron radiation should be monitoring in real-time in each ATCA crate and in various places where other electronics is installed.

When allowed dose or fluence is violated alarm should be triggered (IPMI message).

All measured data should be stored in main data base for further analysis

xfel the european x-ray laser project x-ray free-electron laser dariusz makowski, technical...

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