Global accelerator networkGlobal accelerator network@@

TTFTTF

Raimund KammeringDESY MVP

TTF2 Review Meeting at Salzau, 20.-22. January 2003

Raimund Kammering, DESY MVP 22. January 2003 2

OverviewOverview

• Motivation for a GANMotivation for a GAN

• Implementation @ TTF1Implementation @ TTF1

• Making the next step: TTF2Making the next step: TTF2

Raimund Kammering, DESY MVP 22. January 2003 3

Why do we need a GAN?Why do we need a GAN?

Build a (big) project within an international collaboration

• effectively use of world-wide competence, ideas and resources

• maintain and foster the centers of excellence in accelerator

physics around the world

Challenges

• how to develop trust between people and cultures?

• how to keep the people involved and responsible?

• how to communicate and distribute the information?

• …

Raimund Kammering, DESY MVP 22. January 2003 4

What is a GAN?What is a GAN?

• Remote operation

• Remote solving of problems

• Remote improvements/developments/measurements

• Share information and documentation

• Remote meetings/conferences

collaborative work

Raimund Kammering, DESY MVP 22. January 2003 5

Requirements for remote operationRequirements for remote operation

• Network security (firewall, port filter, SSH, https)

• Machine protection system (interlock sys.)

• Common control system interface

• Access to all devices and data (diagnostics, resets)

• Electronic logbook

• Video conferencing (shift turnover & meetings)

• Operator training

Raimund Kammering, DESY MVP 22. January 2003 6

Remote operation (security)Remote operation (security)

I / O

CP

U I / OC

PU I / O

CP

USSH + Web

FirewallPort filter

Remote TerminalX-WindowWeb Browser

Server for ApplicationseLogBook

Front-ends

Accelerator site

Somewhere in the world

Raimund Kammering, DESY MVP 22. January 2003 7

Experience with remote operation @ TTFExperience with remote operation @ TTF

TTF

DESY (Hamburg)

A0

Fermilab

PITZ

DESY (Berlin)

Facility to control

TTF

BKR

Home,Office

HamburgMilano, Roma Paris

ChicagoBerlin

INFN

PITZ

SaclayOrsay Fermilab A0

Raimund Kammering, DESY MVP 22. January 2003 8

• Is a must for doing remote shifts

• Involves more people into the daily operation

• Can be the common place for all measurement results

• Is accessible from everywhere at every time

The electronic logbookThe electronic logbook

An e-logbook is an important tool for a GAN!

Raimund Kammering, DESY MVP 22. January 2003 9

The TTF eLogBookThe TTF eLogBook

Raimund Kammering, DESY MVP 22. January 2003 10

The TTF eLogBookThe TTF eLogBook

Accelerator

OperatorMake inputsInteract

Home

Office

Location x

Accelerator site

Gather informationand status

Comment

The world wide web

Raimund Kammering, DESY MVP 22. January 2003 11

• Has gained a high acceptance

• Already triggered some contributions (H1)

• Designed as an open tool (is extensible)

• Is the common place for all measurement results

The TTF eLogBook (cont.)The TTF eLogBook (cont.)

Has proven to be a good GAN tool!

Raimund Kammering, DESY MVP 22. January 2003 12

• First experience with MS Netmeeting (shifts)

- Bad audio quality

- Only point to point connections possible

Video tools @ TTFVideo tools @ TTF

We need a better video tool!

• Some test with VRVS have been done (conference)

+ Good audio quality

+ Multicast connections possible

Raimund Kammering, DESY MVP 22. January 2003 13

Making the next step: TTF2Making the next step: TTF2

• DOOCS provides all tools necessary to do remote

operation

• We have good experience with remote shifts and

maintenance

• We need to provide also access to the long term data

(DAQ) to the world (talk of K. Rehlich)

The control system

DOOCS is a adequate control system

in the sense of a GAN

Raimund Kammering, DESY MVP 22. January 2003 14

Making the next step: TTF2Making the next step: TTF2

• Shows that the web technologies can really help

• The use of these web techniques will be extended to

offer more information: general error and info

service (poster of O. Hensler @ PCaPAC 2002)

The electronic logbook

Web services have proven be the adequate technique

for delivering information/documentation in the

sense of a GAN

Raimund Kammering, DESY MVP 22. January 2003 15

Making the next step: TTF2Making the next step: TTF2

• General technique fulfills our needs

• Different systems have to be evaluated

• Techniques have to be improved, users have to get

used to these new systems

The video systems

We will have to work on this area to establish the

functionality we need

Raimund Kammering, DESY MVP 22. January 2003 16

DAQ @ TTF2DAQ @ TTF2

• As already stated in the talk of K. Rehlich do we

need a DAQ to further improve and develop the

accelerator

• Such a DAQ system brings up some new challenges

in terms of the huge amount of data

The TTF2 DAQ system as an example for a

collaborative GAN work

Raimund Kammering, DESY MVP 22. January 2003 17

DAQ @ TTF2DAQ @ TTF2

DAQ

Orbit server

ADC’s ~800 channels

possible8TB/day

max 50GB/dayShared memory

Disk backup

dCache tapestorage

User GUI(ROOT)

Filter,configure

Raimund Kammering, DESY MVP 22. January 2003 18

DAQ @ TTF2DAQ @ TTF2

• This huge amount of data is in the range of an

average HEP experiment (H1 ~ 110 GB/day)

• Here we could learn from the experiments

We established a collaboration with:

Ohio State/Cornell/Zeuthen

Work in such a collaboration can only be

done in the sense of a GAN

Raimund Kammering, DESY MVP 22. January 2003 19

The endThe end

Thanks for your attention!Thanks for your attention!

Refs:

DOOCS: http://tesla.desy.de/doocs

eLogBook: http://ttfinfo.desy.de/TTF

TTF GAN: http://tesla.desy.de/doocs/GAN