1. SFB Meeting, March 06 DESY overview HEP research photon research
Zeuthen
recent developments
Astroparticle physics,
PITZ, XFEL, HPC
U. Gensch, 20 March 2006
SFB-meeting

2. DESY – Deutsches Elektronen-Synchrotron
DESY – a Centre of the Helmholtz Gemeinschaft
Sites: Hamburg & Zeuthen
Budget: M€ (2005; basic))
Personal:
~ 100 PhD students
~ 100 Postdocs
> 100 apprentices
- close connections to universities
- international used , national financed science centre
U. Gensch, 20 March 2006
SFB-meeting

3. DESY - Research Facilities
Particle Physics
HERA
ILC R&D
? ILC construction
Photon Science
DORIS
PETRA as highest brilliance X-ray source
VUV-FEL as research facility and ILC test bed
European XFEL in Hamburg
1990
2000
2010
U. Gensch, 20 March 2006
SFB-meeting

4. HERA - succesful startup after shutdown; going to stop in 2007
Particle Physics
HERA - succesful startup after shutdown; going to stop in
ILC - active partner of the global initiative
( machine, detector, physics) ,
synergy with XFEL project
HPC;ApeNext - NIC ( GSI joined NIC; new research groups/FZJ;GSI)
3 racks; 600 Tflops each; physics code on the machines
External Experiment´s
LHC
TIER 2 center for german Universities
DESY takes part in ATLAS & CMS
Icecube strings deployed in winter 05/06 !
HEP strategy for Europe
Strategy group of CC, open symposium at Orsay(Jan06)
closed meeting May at Zeuthen  C Council Lisboa; July
U. Gensch, 20 March 2006
SFB-meeting

5. HERA - succesful startup after shutdown; going to stop in 2007
Particle Physics
HERA - succesful startup after shutdown; going to stop in
- Hera experiments very successful in 2005
- shutdown HERMES recoil detector
H1 FST/BST
ZEUS – endcap
- PRC/may06 e+/e- ; low energy running
U. Gensch, 20 March 2006
SFB-meeting

6. technically driven schedule
Particle Physics
ILC - Global Design Effort
Formal organization started at LCWS 05 (Stanford) in
March 2005 when B.Barish became director of the GDE
technically driven schedule
U. Gensch, 20 March 2006
SFB-meeting

7. Concept of baseline design - ready end 2005 !
(many similarities to TESLA TDR)
two European sites for cost estimation (CERN&DESY)
European Industry Forum for SC Acc. Technologies
(XFEL + ILC)
EU money for ILC
- CARE (DESY coordinator- D.Proch)
- EUROTEV ( coordinator – E.Elsen)
- EUDET (coordinator – J.Mnich)
7 M€ from EU; 4 y ; 22 institutes

8. LHC: DESY participation in ATLAS and CMS
Particle Physics
LHC: DESY participation in
ATLAS and CMS
strong link toHERA Physics programme
complementary to ILC Physics programme
according to DESY´s relation to the German Univ.
both DESY sites involved !
ATLAS + CMS
TIER2
startup on low scale (no new additional ressources)
trigger, DAQ, detector commissioning
preparation of physics analysis
more ressources – 2008/9
coordinators
ATLAS – K.Mönig, M.Medinnis
CMS J.Mnich
SFB (continuation) very important !
U. Gensch, 20 March 2006
SFB-meeting

9. Photon research PETRA III upgrade on schedule
DORIS evaluation in 2007 ?
VUVFEL running user facility;
- TTF-LINAC: part time R&D for ILC
XFEL - MoU for preparation phase signed by countries
- legal procedure (PFV) near to end
- availability of the site – HH, SFL negotiate
- TDR
accelerator - ready, review last week
FEL spring
U. Gensch, 20 March 2006
SFB-meeting

10. Photon research
Status of the new projects Stand der neuen Projekte im Photonenbereich
Press communication of the BMBF;

11. Accelerating Structures
VUV-FEL Overview
Laser
Bunch Compressor
bypass
Undulators
Collimator
RF gun
5 MeV
127 MeV
370 MeV
445 MeV
Accelerating Structures
Diagnostics
FEL diagnostics
300 m
: tunnel closed for commissioning
Jan 2005: first lasing at 32 nm
Aug 2005: first user exper.

12. VUV-FEL performance Spectral distribution Spatial profile
max
average
single
Spectral distribution
8-bunch operation (t=1 µs)
Spatial profile
2Hz/multi-bunch (≤ 30)
Parameter Expected (08.04) Measured
Wavelength 30 nm 32 nm (27, 45 nm at lower int.)
Pulse duration fs fs
Pulse energy µJ up to 130 µJ (mostly 5-10 µJ)
at saturation onset of nonlinear regime
Bandwidth 0.8% %
Divergence µrad < 150 µrad

13. Areas of Proposed Research
User experiments
Areas of Proposed Research
Femtosecond time-resolved experiments
synchronisation FEL - optical laser
chemical reactions
magnetism dynamics
Interaction of ultra-intense XUV pulses with matter
multiphoton excitation of atoms, molecules, clusters…
plasma physics
Investigation of extremely dilute samples
free radicals
mass selected clusters
ions
High-resolution spectroscopy
nanometer focus
meV-resolution photon and photoelectron spectroscopy of surfaces and solids with nm resolution

14. Pump-Probe Experiments in the Gas Phase
M. Meyer et al.
Cross-correlation of FEL and green laser pulse (12ps) in He
FEL harmonics (~ %)

15. Summary of user experiments
14 user experiments had first beam
4 experiments for technical developments were performed
user facility : beam allocation committee, responsiblities
Most experiments are very complex and include many components 
groups formed collaborations
teams are much larger than at synchrotron radiation facilities
First reports are very promising:
commissioning of most experiments was quite successful although often difficult with present FEL beam conditions
most experiments have taken first useful data demonstrating that their concepts work; data are currently evaluated
Continuing implementation of data acquisition and diagnostics
Further commissioning of the FEL: - tunable wavelengths - more power

16. Photon research - European XFEL project team head – M.Altarelli
- TDR – review process
- PFV – expected before summer
Research at XFEL
CFEL on DESY campus
(Uni-MPG-DESY) W3 Professorships
U. Gensch, 20 March 2006
SFB-meeting

17. XFEL MoU
+China
MoU signed by
13 countries

18. Europäisches Röntgenlaser-Projekt

19. Röntgenlaser-Labor in Schenefeld
3 km lang
Undulatoren bis zu 300 m Länge
Inbetriebnahme 2013
Wellenlänge nm
Femtosekunden-Pulse
109 höhere Spitzenbrillianz
Phase I
Phase II
Untersuchung der Materialen mit atomarer Auflösung und der zeitlichen Änderungen ihrer Struktur

20. Zeuthen Personal matters
Young Investigator Group/ astroparticle physics: E.Bernardini
LHC coordination
ATLAS: K.Mönig; M.Medinnis
CMS : J.Mnich
two joint appointments (W3 professorship)
TUB + DESY : Accelerator Physics
Uni Potsdam & DESY : Theoretical Astroparticle Physics
U. Gensch, 20 March 2006
SFB-meeting

21. apeNEXT
Status at DESY
3 racks installed (1 rack = 512 CPU = 0.6 TFlops)
Tested by long (3-20 h) physics application programs running in replication mode
Stable operation (mean time between intervents: >1 weeks)
Soon: transition to user operation
Application kernel performance
30-55% for assembly routines
30-45% for high level languages (to be improved)

22. Summary of the IceCube Construction
IceTop
tank
2004/2005 season
New hot water drill
First string deployed (60 OMs)
Four IceTop stations (16 OMs)
All 76 OM operating
2005/2006 season
Drilling with design performance
8 strings deployed (480 OMs)
12 IceTop stations (48 OM)
604 total OMs
~6 OMs (likely) dead (1.%)
AMANDA
InIce string
& IceTop
500 m

23. The IceCube km3 Detector
InIce detector consisting
of strings with 60
modules each
Horizontal spacing ~ 125 m
Vertical spacing ~ 17 m
Depth from m
Optimized for TeV-PeV
E threshold ~ GeV
IceTop air shower, surface
detector consisting of 70-80
stations
AMANDA-II can be used as
dense, low-energy inner
detector
Get IceTop threshold