Deutsches Elektronen Synchrotron Hamburg PVSS inside the DESY

Deutsches Elektronen Synchrotron Hamburg PVSS inside the DESY H 1 experiment An overview by Sven Karstensen, DESY 05. /06. April 2005 Sven Karstensen, DESY Hamburg

DESY general overview International Collaboration: 2900 scientists from 33 nations are using DESY facilities Staff: employed at DESY Hamburg in total 1390, therefrom 300 scientists User of DESY-facilities: particle physics: 1000 scientists from 25 countries HASYLAB: 1900 scientists from 31 countries 05. /06. April 2005 Sven Karstensen, DESY Hamburg

DESY facility overview HERA: Hadron-Elektron-Ring-Anlage (Facility) build: 1984 – 1990 costs: 700 Mio. € participants: 11 countries dimension: 6. 3 km long ring accelerator energy of electrons: 27, 5 Ge. V energy of protons: 920 Ge. V 3(4) experiments: H 1, ZEUS, HERMES, (HERA-B until 2003) and: TTF Tesla Test Facility HASYLAB Hamburger Synchrotron Laboratory 05. /06. April 2005 Sven Karstensen, DESY Hamburg 3

The H 1 Experiment • working since 1992 • universal detector • 12 m x 10 m x 15 m • 2800 Tons • 380 collaboration members • finding the inner structure of protons • extending the knowledge of the fundamental strengths • searching of new material forms • quests for new unsuspected phenomenons inside the particle physics 05. /06. April 2005 Sven Karstensen, DESY Hamburg 4

Problems in the past (why a new control system ? ) • • computers getting old 1 to 1 connection interconnection via FTP no direct data base connection remote control via Timbuktu / VNC many different GUIs every detector needed his own expert huge amount of manpower 05. /06. April 2005 Sven Karstensen, DESY Hamburg

PVSS as a solution • • • less manpower than before short initial training redundancy alarm handling archiving standard driver OOP, C++ API, OPC graphical surface (as Labview) Running on LINUX and NT 05. /06. April 2005 • Slow Control System • High Voltage control • Solenoid-Current / Vacuum / Cryogenic control • Stepping Motor control • ORACLE connection (Info server) • SMS messaging system for experts • HTTP / WAP interface • floating change was possible • Finite State Machine (CERN) Sven Karstensen, DESY Hamburg 6

PVSS technical data point types ~500 data points ~9200 TCP IP connections ~40 PVSS Systems in H 1 16 Operating Systems Linux: 15 NT: 2 (no development) development team members 7 05. /06. April 2005 Sven Karstensen, DESY Hamburg 7

PVSS structure in H 1 … and many more … 05. /06. April 2005 Sven Karstensen, DESY Hamburg 8

Future accelerators XFEL and ILC 32 km ILC XFEL New projects, where DESY is involved: XFEL (X-Free Electron Laser) and ILC (International Linear Collider) 05. /06. April 2005 Sven Karstensen, DESY Hamburg 9

… the end Thank you very much Any questions ? 05. /06. April 2005 Sven Karstensen, DESY Hamburg