single cavity rf controls based on mtca.4. · single cavity rf controls based on mtca.4. helmholtz...

Single Cavity RF controls based on MTCA.4.

Helmholtz Validation Fonds Project

Matthias Hoffmann for the LLRF TeamARD WorkshopDresden, 14.- 15. March 2013

Matthias Hoffmann | Single Cavity RF controls based on MTCA4_HZDR | 12. December 2012 | Seite 2/26

Overview.

> Introduction

What is MTCA? MTCA.4 at DESY. What is HVF?

MTCA.4 based LLRF development for XFEL/FLASH

Mutli vs. single cavity LLRF system

> Cost optimization for single cavity applications

Hardware/ firmware/ server

> Single cavity facilities

> Operations:

LLRF system

CW operation

Laser synchronization


MTCA.4 Crate Standard

> Development partnership „xTCA for Physics“ (38 partner): 03/2009

Research insitute: SLAC, FNAL, IHEP, IPFN, ITER, DESY

Industry: connector-, board-, crate-, system manufacturer

> Ratification PICMG 2011 (http://www.picmg.org)

Micro Telecommunications Computing Architecture .4 (MTCA.4)

> Modular + modern architecture

Reusability + PCIe + Ethernet

> High availability

Redundant power and fan optional

Well defined remote management

> High digital performance

Very low analog distortions

4 lanes PCIe: 400 MB/s ... 3.2 GB/s

Cables from rear side

http://www.picmg.org/


MTCA.4 Developments at DESY for XFEL.

> MPS signal adapter> ADC and DAC

8 ch ADC 10MSPS, 16 Bit

8 ch DAC 1MSPS, 16 Bit

> Test RTM> Coupler interlocks> 10 ch down converter> Beam position monitor> 2 ch APD pulse stretcher> 2 ch vector modulator> Beam loss monitors> Toroid protection/readout> Wire scanner> Clock & trigger contr. for exp.

MPS

8xADC8xDAC

Test RTM

CouplerInterlock

DWCAPDpulse stretcher

BPM

x1timer

x2timer

DAMC02

SIS8300TAMC651

uTC

> uTCA controller board (uTC)> DAMC02> x1timer/x2timer> SIS8300> TAMC651> ...

Rear Transition Modules Advanced Mezzanine Card

> Additional standardization: ZONE3 Class A1.1 or D1.[0..4]

MMC1.0

RF backplane


Helmholtz Association (HGF) Validation-Fond (HVF).

> What is the HGF validation fond?

Finance instrument to support the spin-off and technology transfer from scientific, technical inventions or developments from HGF centers to the industry and society

Validation: increase of value (material/immaterial with direct application to society / industry

Ideally: generate commercial product

> July 2012: „MTCA.4 for Industry“ project starts with industrial consortium

> Boundaries:

Duration max. 2 years

Funding max. 2 MEUR/a (50% by HGF)

50%1.9M€

30%1.3M€

20%0.7M€


MTCA.4 for Industry.

Main objective of HVF application:

To foster industrialization of MTCA.4

> AP1: Current designs => industry (licensing)

Cost and quality improvements

New modules to complete portfolio (cost optimized and extend in frequency)

> AP2: Supporting industry

Add missing modules

Improve EMI with test environments and shielding, EMI classification

Gain new applications in more market segments

> AP3: Support for institutes and industry

Consulting: help to start with MTCA

User guide and web services

Organization of workshops, tutorials, exhibitions


MTCA.4 based LLRF Development for XFEL/FLASH.

> Multicavity facility

8/16 (FLASH) or 32 (XFEL) cavities per klystron/RF station

24/48/96 signals to detect for RF control (Probe, Forw., Refl.)

> Pulsed superconducting RF structures

Low bandwidth (200Hz)

Pulse structure (1.5ms/10Hz)

Moderate operation speed (9MHz)

XFEL overview


LLRF Development for XFEL/FLASH.

> Based on the LLRF development for FLASH and XFEL:

3..6x 10 channel down converter (DWC8300 / DRTM-DWC10)

3..6x 10 channel digitizer (SIS8300 by Struck)

1x main controller board (uTC / DAMC-TC7)

1x klystron driver / vector modulator (uVM / DRTM-VM2)

6x 6x10 Channel 10 Channel

Evaluation system at FLASH (ACC67)

uTCA Front View

uTCA Rear View

from Cavity

to Klystron


Multi vs. Single Cavity System.

FLASH/XFEL (1.3GHz):

> 8/16/32 cavities per klystron/RF station

> 24/48/96 signals to detect for RF control (probe, forward, reflected)

> Low bandwidth (200Hz)

> Timing structure:

Long pulse length (1.5ms)

Moderate pep.pate (10Hz)

> Moderate operation speed (9MHz)

REGAE/PITZ-TDS (3GHz):

> 1/2 cavities per klystron/RF station

> 3/6 Signals to detect for RF control (probe, forward, reflected)

> Higher bandwidth (60-400kHz)

> Timing structure:

Short pulse length (3-10us)

High rep.rate (up to 100Hz)

> High operation speed (125MHz)


AP1.2 : Cost Optimization for Single Cavity Apps.

> AP1.2.1: combine hardware (DWC and VM)

> AP1.2.2: more processing power on SIS8300L by Virtex 6

> Less hardware:

2 boards instead of 4 for main control loop

> Less latency:

No digital communication links

~500ns less latency (~250ns per link)

> E.g. @ REGAE:

Current loop delay ~1us

Expected reduction to ~400ns(more powerfull FPGA)

6x 6x10 Channel 10 Channel

8 Channel 10 Channel


Single Cavity LLRF Hardware.

> DRTM-DWC8VM1 – 8 channel down- / 1 channel upconverter

700MHz to 4GHz (upgrade: 500MHz to 6GHz)

Excelent amplitude (<0.005%) and phase resolution (<10fs)

> SIS8300L – 10 channel 125MHz/16Bit digitizer

Xilinx Virtex 6

Low jitter clock distribution

DRTM-DWC8VM1 SIS8300L

in pr

oduc

tion


Supplementary Modules (AP1.4.2).

> DAMC-FMC20 – AMC FMC carrier board

> DFMC-MD22 – FMC 2 channel stepper motor driver

Cavity motor tuner

Beam diagnostics (beam-arrival time-monitor)

Laser based synchronization

> DRTM-PZT4 – RTM 4 channel piezo driver board

Cavity piezo tuner

Laser based synchronization

DAMC-FMC20DRTM-PZT4DFMC-MD22


Low Frequency LLRF Hardware (AP1.3.3).

> DRTM-DS10VM1 – 10 channel direct sampling / 1 channel upconverter

DC/5MHz to 450MHz

> SIS8300L – 10 channel 125MHz/16Bit digitizer

Xilinx Virtex 6 and low jitter clock distribution

> SIS8325 – upgrade with 250MSPS digitizer

DRTM-DS10VM1 SIS8300L/SIS8325

unde

r dev

elopm

ent


Possible Crate Configurations.

> SIS8300L + DRTM-DWC8VM1

LLRF field detection and controller

> DAMC-FMC20 + DFMC-MD22 + DRTM-PZT4

Piezo driver (PZT4) for cavity piezo tuner

Motor driver (MD22) for cavity frequency tuner

> Free slot #3 for:

Coupler interlock, diagnostic (BPM), fast klystron protection, etc.

e.g. for ELBE


LLRF Firmware Structure.


Control Server for LLRF.


Single Cavity Facilities - Overview.

Facility Cond. Time

3 GHz NRF 10us 50 Hz 1 06/20133 GHz NRF 3.1us 10 Hz 1 07/2013

XFEL-TDS 3 GHz NRF 3.1us 10 Hz 3 2014FLUTE (KIT) 3 GHz NRF 5us 100 Hz 1 (2) 11/2013

PITZ-GUN 1.3 GHz NRF 1.5ms 10 Hz 1 07/2013PITZ-BOOSTER 1.3 GHz NRF 1.5ms 10 Hz 1 07/2013XFEL RF Gun 1.3 GHz NRF 1.5ms 10 Hz 1 07/2013FLASH RF Gun 1.3 GHz NRF 1.5ms 10 Hz 1 08/2013

ELBE (HZDR) 1.3 GHz SRF CW CW 4 (7) 09/2013HOBICAT (HZB) 1.3 GHz SRF CW CW 1

ESS (RFQ, DTL) 352 MHz NRF 3.5ms 14 Hz 8ESS (Spoke) 352 MHz SRF 3.5ms 14 Hz 28ESS (mBeta, hBeta) 704 MHz SRF 3.5ms 14 Hz 180

AMPEGON 214 MHz NRF

Freq. [GHz]

Pulse Length

Rep. Rate

# of Systems

REGAE (Upgrade)PITZ-TDS (Upgrade)


LLRF based on MTCA.4.

> Operation at:

REGAE (Nov. 2011 first RF and beam)

CMTB (module test and CW operation test)

> Demonstration at FLASH ACC1/ACC23/ACC67

14th Nov. 2011:first beam at REGAE


CW Operation at CMTB (10.-17. April 2012).


Laser Synchronization based on MTCA.4.

> Synchronization based on SIS8300 and DWC8300

> External piezo driver and motor tuner

> Server installed

Access via control system

Robust long-term operation

Automatic locking

> Running system at:

REGAE

FLASH laser 3 (short pulse laser)


Thank You for Your Attention!


Backup Slides


DAMC-FMC20 – FMC Carrier.

> Double width MTCA.4

> Advanced-mezzanine cardclass D1.0 compatible

> Supports 2 FMCs

> ANSI/VITA 57.1 (LPC and HPC) compliant

> Extra power connector for FMCs

> Onboard Spartan-6 FPGA

> IMPI 1.1 compliant MMC

> RoHS compliant

Link to HVF Webpage: mtca.desy.de


DFMC-MD22 – FMC 2 Channel Stepper Motor Driver.

> 2 channel stepper motor driver

> ANSI/VITA 57.1 LPC compliant

> Realtime support

> Supports up to 1.8A motor coil current

> Supports up to 256 micro-steps per full step

> Programmable current slopes

> Each channel supports switchable EnDat2.2 or ABN-encoder readout

> RoHS compliant



DRTM-PZT4 – 4 Channel Piezo Driver/Sensor.

> Double width MTCA.4

> Rear transition moduleclass D1.[0..2] compatible

> Supports 4 piezo drivers and 4 piezo sensors

> Option: unipolar or bipolar power supply


single cavity rf controls based on mtca.4. · single cavity rf controls based on mtca.4. helmholtz...

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