Veröffentlichungen


H. Eberhardt et al.,
Measurement of double polarisation asymmetries in ω-photoproduction,
Phys. Lett. B 750 (2015) 453

V. Crede et al.,
Photoproduction of ω mesons off the proton,
Phys. Lett. B 749 (2015) 407

J. Hartmann et al.,
The polarization observables T, P, and H and their impact on gamma p → pπo multipoles,
Phys. Lett. B 748 (2015) 212

V. Sokhoyan et al.,
High-statistics study of the reaction gamma p → p 2πo,
Eur. Phys. J. A 51 (2015) 95

V. Sokhoyan et al.,
Data on Is and Ic in γp → p πo πo reveal cascade decays of N(1900) via N(1520)π,
Phys. Lett. B 746 (2015) 127

M.T. Switka, W. Hillert,
Preserving Information of the Three Spatial Electron Beam Dimensions in One Streak Camera Measurement,
IPAC'15 Conf. Proc. (2015) 144

D. Sauerland, W. Hillert, A. Meseck,
Estimation of the Ion Density in Accelerators using the Beam Transfer Function Technique,
IPAC'15 Conf. Proc. (2015) 147

D. Proft, W. Hillert
A New FPGA Based Timing System at ELSA,
IPAC'15 Conf. Proc. (2015) 802

J.F. Schmidt, W. Hillert,
Magnetic Field Parametrization for Efficient Spin Tracking with POLE,
IPAC'15 Conf. Proc. (2015) 808

J.F. Schmidt et al.,
Measurement of Momentum Compaction Factor via Depolarizing Resonances at ELSA,
IPAC'15 Conf. Proc. (2015) 811

D. Proft, W. Hillert, T. Perlitius,
Development of New Microcontroller Based Power Supply Control Units at ELSA,
IPAC'15 Conf. Proc. (2015) 2777

P. Haenisch, W. Hillert, B. Neff,
Water-cooled Thin Walled Beam Pipes of the Fast Ramping Storage Ring ELSA,
IPAC'15 Conf. Proc. (2015) 2780

M. Schedler et al.,
A New RF station for the ELSA Stretcher Ring,
IPAC'15 Conf. Proc. (2015) 2783

A. Thiel et al.,
Three-Body Nature of N* and Δ* Resonances from Sequential Decay Chains,
Phys. Rev. Lett. 114 (2015) 091803

F. Dietz et al.,
Photoproduction of ω mesons off protons and neutrons,
Eur. Phys. J. A 51 (2015) 6

D. Proft et al.,
Setup of a history storage engine based on a non-relational database at ELSA,
PCaPAC'14 Conf. Proc. (2014) 34

M. Switka et al.,
Dual transverse and longitudinal sreak camera imaging at ELSA,
IBIC'14 Conf. Proc. (2014) 144

M. Schedler et al.,
A new high current and single bunch injector at ELSA,
LINAC'14 Conf. Proc. (2014) 847

R. Ewald et al.,
Measurement of polarisation observables in Kos Σ+ photoproduction off the proton,
Phys. Lett. B 738 (2014) 268

J. Hartmann et al.,
N(1520) 3/2-helicity amplitudes from an energy-independent multipole analysis based on new polarization data on photoproduction of neutral pions,
Phys. Rev. Lett. 113 (2014) 062001

S. Friedrich et al.,
Experimental constraints on the ω-nucleus real potential,
Phys. Lett. B 736 (2014) 26

J.F. Schmidt et al.,
Optimizing Polarization with an Improved Integer Resonance Correction Scheme at ELSA,
IPAC'14 Conf. Proc. (2014) 1108

J.P. Thiry et al.,
High Bandwidth Closed Orbit Control for a Fast Ramping Electron Accelerator,
IPAC'14 Conf. Proc. (2014) 1111

D. Sauerland et al.,
First Studies on Ion Effects in the Accelerator ELSA,
IPAC'14 Conf. Proc. (2014) 1585

A. Markovic et al.,
Dynamics of Ion Distributions in Beam Guiding Magnets,
IPAC'14 Conf. Proc. (2014) 1668

N. Heurich et al.,
Radiation Protection Concepts for the Beamline for Detector Tests at ELSA,
IPAC'14 Conf. Proc. (2014) 1799

M. Schedler et al.,
A New Digital LLRF System for a Fast Ramping Storage Ring,
IPAC'14 Conf. Proc. (2014) 2418

D. Proft et al.,
Setup of a History Storage Engine based on Hypertable at ELSA,
IPAC'14 Conf. Proc. (2014) 3128

T. Schiffer et al.,
Set up of a Synchrotron Light Monitor at the 2.5 GeV Booster Synchrotron at ELSA,
IPAC'14 Conf. Proc. (2014) 3468

M.T. Switka et al.,
Synchrotron Radiation Diagnostics Performance at ELSA,
IPAC'14 Conf. Proc. (2014) 3471

E. Gutz et al.,
High statistics study of the reaction γp → pπ0η,
Eur. Phys. J. A 50 (2014) 74

M. Gottschall et al.,
First Measurement of the Helicity Asymmetry for γp → pπ0 in the Resonance Region,
Phys. Rev. Lett. 112 (2014) 012003

M. Nanova et al.,
Determination of the η'-nucleus optical potential,
Phys. Lett. B 727 (2013) 417

M. Switka et al.,
Streak Camera Imaging at ELSA,
IBIC'13 Conf. Proc. (2013) 132

D. Proft, F. Frommberger, W. Hillert,
Overview of the ELSA Accelerator Control System,
ICALEPS'13 Conf. Proc. (2013) 1396

S. Naknaimueang et al.,
Design Studies for FLUTE, A Linac-based Source of Terahertz Radiation,
FEL'13 Conf. Proc. (2013) 598

J.F. Schmidt et al.,
Simulating Spin Dynamics and Depolarization using POLE,
IPAC'13 Conf. Proc. (2013) 891

D. Sauerland et al.,
Amplitude, Phase and Temperature Stabilization of the ELSA RF System,
IPAC'13 Conf. Proc. (2013) 2717

D. Proft, F. Frommberger, W. Hillert,
The Accelerator Control System at ELSA,
IPAC'13 Conf. Proc. (2013) 3149

D. Heiliger, W. Hillert, B. Neff,
A New Load Lock System for the Source of Polarised Electrons at ELSA,
IPAC'13 Conf. Proc. (2013) 294

J.-P. Thiry et al.,
The New Orbit Correction System at ELSA,
IPAC'13 Conf. Proc. (2013) 479

S. Zander et al.,
High Resolution Synchrotron Light Analysis at ELSA,
IPAC'13 Conf. Proc. (2013) 482

M. Schedler et al.,
Broad and Narrow Band Feedback Systems at ELSA,
IPAC'13 Conf. Proc. (2013) 2714

N. Heurich et al.,
A New External Beamline for Detector Tests,
IPAC'13 Conf. Proc. (2013) 3300

A. Thiel et al.,
Comment on "Well-Established Nucleon Resonances Revisted by Double-Polarization Experiments" Reply,
Phys. Rev. Lett. 110 (2013) 169102

T.R. Pusch et al.,
Measuring the intensity and position of a pA electron beam with resonant cavities,
Phys. Rev. ST Accel. Beams 15 (2012) 112801

A. Thiel et al.,
Well-Established Nucleon Resonances Revisted by Double-Polarization Experiments,
Phys. Rev. Lett. 109 (2012) 102001

R. Zimmermann et al.,
Compton-Polarimetry at ELSA - First Measurements with an improved System,
IPAC'12 Conf. Proc. (2012) 783

D. Proft et al.,
The Beam Loss Monitoring System at ELSA,
IPAC'12 Conf. Proc. (2012) 786

J.P. Thiry et al.,
Dynamic Closed Orbit Correction During the Fast Energy Ramp of ELSA,
IPAC'12 Conf. Proc. (2012) 789

S. Zander et al.,
Simultaneous Measurement of Emittance at the Storage Ring and the External Beamlines of ELSA,
IPAC'12 Conf. Proc. (2012) 792

S. Zander et al.,
A New Diagnostic Beamline at ELSA,
IPAC'12 Conf. Proc. (2012) 795

O. Boldt et al.,
How to Achieve Longitudinal Polarized Electrons using Integer Spin Tune Resonances,
IPAC'12 Conf. Proc. (2012) 1326

D. Heiliger et al.,
A New Load Lock-System for the Source of Polarized Electrons at ELSA,
IPAC'12 Conf. Proc. (2012) 1521

M. Schedler et al.,
First Measurements with Multibunch Feedback Systems at the Fast Ramping Stretcher Ring ELSA,
IPAC'12 Conf. Proc. (2012) 2840

A. Dieckmann et al.,
Fast Ramping Arbitrary Waveform Power Supplies for Correction Coils in a Circular Electron Accelerator ,
IPAC'12 Conf. Proc. (2012) 3623

R. Ewald et al. (CBELSA/TAPS Collaboration),
Anomaly in the KosΣ+ photoproduction cross section off the proton at the K* threshold ,
Phys. Rev. B 713, (2012) 180

V. Crede et al. (CBELSA/TAPS Collaboration),
Photoproduction of neutral pions off protons,
Phys. Rev. C 84, (2011) 055203

O. Boldt et al.,
Spinor Based Calculations of Depolarizing Effects in Circular Lepton Accelerators,
IPAC'11 Conf. Proc. (2011) 230

D. Heiliger,W. Hillert, and B. Neff
Strongly Space Charge Dominated Beam Transport at 50 keV,
IPAC'11 Conf. Proc. (2011) 1123

N. Heurich et al.,
A Longitudinal Kicker Cavity for a Bunch by Bunch Feedback System at ELSA,
IPAC'11 Conf. Proc. (2011) 484

W. Hillert et al.,
Crossing of Depolarizing Resonances in Circular Electron Accelerators,
IPAC'11 Conf. Proc. (2011) 2133

S. Mey et al.,
Verifying the Single Bunch Capability of the New Injector at ELSA,
IPAC'11 Conf. Proc. (2011) 1072

A. Roth, W. Hillert,
Operation of Superconducting Cavities in a Fast Ramping Stretcher Electron Storage Ring,
IPAC'11 Conf. Proc. (2011) 253

A. Roth et al.,
Commissioning of the Multibunch Feedback Systems at the Fast Ramping Stretcher Ring ELSA,
IPAC'11 Conf. Proc. (2011) 250

M. Schedler et al.,
A Broadband RF Stripline Kicker for Damping Transversal Multibunch Instabilities,
IPAC'11 Conf. Proc. (2011) 481

S. Zander et al.,
Emittance Variation Dependence on Resonance Extraction Parameters at ELSA,
IPAC'11 Conf. Proc. (2011) 1168

R. Zimmermann et al.,
A New Counting Silicon Strip Detector System for Precise Compton Polarimetry,
IPAC'11 Conf. Proc. (2011) 1171

T. Pusch et al.,
Cavity-based deam diagnostics at ELSA,
DIPAC'11 Conf. Proc. (2011) 263

O. Boldt et al.,
A new correction scheme to compensate depolarizing integer resonances at ELSA,
PAC'11 Conf. Proc. (2011) 1507

S. Zander et al.,
Optical beam diagnostics at ELSA,
PAC'11 Conf. Proc. (2011) 408

W. Hillert, K. Aulenbacher,
Workshop on Sources of Polarized Leptons and High Brightness Electron Beams,
J. of Phys. Conf. Series 298 (2011) 011001

A. Lehrach et al.,
The polarised Electron-Nucleon Collider Project ENC at GSI/FAIR,
J. of Phys. Conf. Series 295 (2011) 012156

O. Boldt et al.,
Investigation of various electron ring concepts for the ENC with regard to depolarising effects,
J. of Phys. Conf. Series 295 (2011) 012157

D. Heiliger et al.,
Upgrade of the inverted source of polarized electrons at ELSA,
J. of Phys. Conf. Series 298, (2011) 012003

I. Jaegle et al. (CBELSA/TAPS Collaboration),
Quasi-free photoproduction of eta-mesons off the deuteron,
Eur. Phys. J. A 47, (2011) 89

I. Jaegle et al. (CBELSA/TAPS Collaboration),
Photoproduction of η'-mesons off the deuteron,
Eur. Phys. J. A 47, (2011) 11

F. Klarner et al.,
Detailed studies regarding the new injection system at the LINAC I at ELSA,
LINAC'10 Conf. Proc. (2010) 325

M. Eberhardt et al.,
Measurement and correction of the longitudinal and transversal tunes during the fast energy ramp at ELSA,
IPAC'10 Conf. Proc. (2010) 897

N. Sparks et al. (CBELSA/TAPS Collaboration),
Measurement of the beam asymmetry Σ in the forward direction γp to pπo ,
Phys. Rev. C 81, (2010) 065210

E. Gutz et al. (CBELSA/TAPS Collaboration),
Photoproduction of meson pairs: First measurement of the polarization observable Is,
Phys. Lett. B 687, (2010) 11

D. Heiliger et al.,
Upgrade of the 50 keV GaAs source of polarized electrons at ELSA,
Proceedings 13th Workshop Polarized Sources and Targets, World Scientific, New York 2011, 232

A. Jankowiak et al.,
Concept for a polarized electron-nucleon collider utilizing the HESR storage ring at GSI/FAIR,
PAC'09 Conf. Proc. (2010) 2646

A. Balling et al.,
Precision closed orbit correction in a fast ramping stretcher ring,
PAC'09 Conf. Proc. (2010) 3714

D. Elsner et al. (CBELSA/TAPS Collaboration),
Linearly polarised photon beams at ELSA and measurement of the beam asymmetry in πo photoproduction off the proton,
Eur. Phys. J. A39 (3), (2009) 373

A. Balling et al.,
Polarization upgrade at ELSA,
AIP Conf. Proc. 1149, (2009) 809

W. Hillert et al.,
Compton Polarimetry at ELSA,
AIP Conf. Proc. 1149, (2009) 1160

F. Klarner et al.,
The new single bunch injector for ELSA,
LINAC'08 Conf. Proc., (2009) 392

A. Balling et al.,
Machine-Mode Aware Beam Loss Monitoring,
PCaPAC'08 Conf. Proc., (2008) 93

W. Hillert,
The Bonn Electron Stretcher Accelerator ELSA: Past and future,
Eur. Phys. J. A 28, (2006) 139

M. Eberhardt et al.,
The 50 keV Source of Polarized Electrons at ELSA: Past and future,
AIP Conf. Proc. 915, (2006) 1031

H. Dutz et al.,
Measurement of Helicity-Dependent Photoabsorption Cross Sections on the Neutron from 815 to 1825 MeV,
Phys. Rev. Letters 94, (2005) 162001

H. Dutz et al.,
Experimental Check of the Gerasimov-Drell-Hearn Sum Rule for 1H,
Phys. Rev. Lett. 93, (2004) 032003

H. Dutz et al.,
First Measurement of the Gerasimov-Drell-Hearn Sum Rule for 1H from 0.7 to 1.8 GeV at ELSA,
Phys. Rev. Letters 91, (2003) 192001

W. v. Drachenfels et al.,
The polarized electron source at ELSA,
AIP Conf. Proc. 675, New York, 2003, 1053-1057.

D. Doll et al.,
A counting silicon microstrip detector for precision compton polarimetry,
Nucl. Instr. & Meth. A 492 (2002) 356-364

M. Hoffmann et al.,
The polarized electron beam at ELSA,
AIP Conf. Proc. 570, New York 2001, 756-760.

W. Hillert, M. Gowin, B. Neff,
The 50 kV inverted source of polarized electrons at ELSA,
AIP Conf. Proc. 570, New York 2001, 961-964.

W. Hillert,
Erzeugung eines Nutzstrahls spinpolarisierter Elektronen an der Beschleunigeranlage ELSA,
(German, about the generation of a beam of spin-polarized electrons for hadron physics experiments at the electron stretcher accelerator ELSA)
Habilitation thesis, BONN-IR-2002-03 (2000)

W. Hillert, M. Gowin, B. Neff,
A new Injector for Polarized Electrons at ELSA,
Proc. GDH2000, World Scientific, Singapur, 2000, 283-288.

W. Hillert, M. Gowin, B. Neff,
A 50 kV inverted polarized gun,
Proc. Low Energy Polarized Electron Workshop, St. Petersburg, 1998, 115-117.

W. Hillert et al.,
The Compton Polarimeter at ELSA,
Proc. 12th International Symposium on High Energy Spin Physics, World Scientific, Singapur, 1997, 785-787.

W. Hillert, F.J.  Lübken, G. Lehmacher,
TOTAL: a rocket-borne instrument for high resolution measurements of neutral air turbulence during DYANA,
J. Atmos. Terr. Phys. 56 (1994), 1835-1852.

E.V. Thrane et al.,
A study of small-scale waves and turbulence in the mesosphere using simultaneous in-situ observations of neutral gas and plasma fluctuations,
J. Atmos. Terr. Phys. 56 (1994), 1797-1808.

F.J. Lübken et al,
Intercomparison of density and temperature profiles obtained by lidar, ionization gauges, falling spheres, datasondes and radiosondes during the DYANA campaign,
J. Atmos. Terr. Phys. 56 (1994), 1969-1984.

F.J. Lübken et al.,
Morphology and Sources of Turbulence in the Mesosphere during DYANA,
J. Atmos. Terr. Phys. 56 (1994), 1809-1833.

F.J. Lübken et al.,
Experiments Revealing Small Impact of Turbulence on the Energy Budget of the Mesosphere and Lower Thermosphere,
J. Geophys. Res., 98(D11) (1993), 20369-20384.

F.J. Lübken, W. Hillert,
Measurements of turbulent energy dissipation rates applying spectral models,
in: Coupling Processes in the Lower and Middle Atmosphere, E.V. Thrane et al. (eds), Kluwer Academic Publishers, 1993, 345-351.

W. Hillert,
Untersuchung atmosphärischer Turbulenz in der Mesosphäre und unteren Thermosphäre mit Hife von in situ durchgeführten Messungen,
(German, about the study of atmospheric turbulence in the mesosphere and lower thermosphere based on measurements performed in situ)
PhD thesis, BONN-IR-92-13 (1992)

F.J. Lübken et al.,
Neutral air turbulence during DYANA: first results,
Adv. Space Res, 12 (1992), (10)135-(10)139.

T.A. Blix et al.,
Small scale structure observed in situ during the MAC/EPSILON campaign,
J. Atm. Terr. Phys. 52 (1990), 835-854.

W. Hillert, F.J. Lübken,
Neutral air turbulence in the middle and upper atmosphere observed during the MAC/EPSILON campaign,
ESA SP-291 (1989), 179-186.

W. Hillert,
Ein Massenspektrometer zur Messung der Parameter atmosphärischer Turbulenz in der unteren Thermosphäre,
(German, about a mass spectrometer for measuring the parameters of atmospheric turbulence in the lower thermosphere)
Diploma thesis, BONN (1987)

Vorträge / Schulen


Slow extraction at the electron stretcher ring ELSA,
EuCARD-2 XBEAM: The Slow Extraction Workshop, inv. talk,
Darmstadtium Conference Center, Darmstadt, 01.-03.06.2016

Resonant polarimetry: a new way to fast non-invasive measurement of beam polarisation?,
EuCARD-2 XPOL Workshop on Polarisation Issues in Future High Energy Circular Colliders, inv. talk,
Crowne Plaza Rome, Rom, Italien, 16.04.2016

Compton polarimetry at storage rings,
EuCARD-2 XPOL Workshop on Polarisation Issues in Future High Energy Circular Colliders, inv. talk,
Crowne Plaza Rome, Rom, Italien, 16.04.2016

Resonant Polarimetry,
JEDI Collaboration Meeting, inv. talk,
Forschungszentrum Jüich, 01.03.2016

Excitation of Resonant Cavities by Magnetic Moments,
Gruppenseminar zur Beschleunigerphysik,
Universität Bonn, Bonn, 23.02.2016

From Wolfgang Paul to eEDM: Why - and why in Bonn?,
Juelich / COSY Meeting, inv. talk,
Jefferson Lab, Newport News, USA, 03.02.2016

AENEAS (Aluminium-based Extreme-field Normal-conducting Electron Accelerating Structure):
Über einen plötzlichen Heldentod durch Erkrankung am anomalen Skineffekt
,

Gruppenseminar zur Beschleunigerphysik,
Universität Bonn, Bonn, 15.12.2015

Bonn Polarized GaAs-Photoinjector,
Emitting Materials - Photocathodes for Photoinjectors,
Helmholtz-Zentrum Dresden-Rossendorf, Dresden, 04.12.2015

F&E Beschleuniger,
Jahresversammlung der Deutschen Elementarteilchenphysik, inv. talk,
Physikzentrum, Bad Honnef, 21.11.2015

Accelerator R&D at ELSA: Towards intense GeV-beams of highly polarized electrons,
Internes Kolloquium Universität Rostock, inv. talk,
Rostock, 07.10.2015

Teilchenbeschleuniger für die Hochenergiephysik,
Lehrerfortbildung Elementarteilchen,
Bonn, 05.10.2015

F&E Beschleuniger: Wissenschaftliche Ziele,
Strategiegespräch zur Fortführung der BMBF Verbundforschung, inv. talk,
Bundesministerium für Bildung und Forschung, Bonn, 01.09.2015

Beschleunigerphysik im FB "Kondensierte Materie": Status und Ziele,
Strategiegespräch zum BMBF Förderschwerpunkt "Erforschung kondensierter Materie", inv. talk,
Bundesministerium für Bildung und Forschung, Bonn, 21.05.2015

Accelerator R&D at ELSA: Towards intense GeV-beams of highly polarized electrons,
Internes Kolloquium Universität Hamburg, inv. talk,
Hamburg, 18.05.2015

Non-invasive beam diagnostics of high- and low-intensity beams,
SFB 634 lecture week, inv. lecture,
Darmstadt, 08.05.2015

Polarized beams at the Bonn Electron Stretcher Accelerator,
SFB 634 lecture week, inv. lecture,
Darmstadt, 05.05.2015

Polarized beams,
SFB 634 lecture week, inv. lecture,
Darmstadt, 04.05.2015

(Polarized) GeV-photons for the BGO-OD experiment,
BGO-OD Kollaborationstreffen,
Bonn, 07.10.2014

The hunt for highest polarization,
Annual Meeting of the SFB Transregio 16,
Bonn, 24.09.2014

A simple approach for safely powering cw klystrons,
18th European Synchrotron Light Source Workshop (ESLS 2014),
Dortmund, 18.09.2014

Accelerators for Hadronists,
Hadron Physics Summer School HPSS 2014, inv. lecture,
Schloss Rauischholzhausen, 04.09.2014

Teilchenbeschleuniger für die Hochenergiephysik,
Lehrerfortbildung Elementarteilchen, inv. talk,
Physikzentrum Bad Honnef, 26.06.2014

R&D Beschleuniger in den Förderbereichen ETP und HKP,
Strategiegespräch zu den BMBF Förderschwerpunkten "Elementarteilchenphysik" und "Hadronen- und Kernphysik", inv. talk,
Bundesministerium für Bildung und Forschung, Bonn, 15.05.2014

R&D @ ELSA: Status, Goals, Projects,
Crystal Barrel Kollaborationstreffen,
Bonn, 07.03.2014

Polarized Beams: a powerful tool for hadron physics,
FZJ internes Kolloquium, inv. talk,
Forschungszentrum Jülich, 31.01.2014

ELSA @ University of Bonn,
KfB Vollversammlung,
Darmstadt, 28.11.2013

Der Bonner Elektronenbeschleuniger ELSA: eine Großanlage zur Untersuchung kleinster Strukturen,
Lehrerfortbildungsreihe Kontaktstudium,
Bonn, 20.11.2013

ELSA and the BGO-OD electron beam line,
BGO-OD Kollaborationstreffen,
Bonn, 16.09.2013

The Challenge of High Intensities,
Annual Meeting of the SFB Transregio 16,
Bochum, 03.09.2013

ELSA @ University of Bonn,
Informal Meeting on Accelerator R&D at the University of Bonn,
CERN, 29.04.2013

SFB-related Accelerator R&D at ELSA,
SFB/TR 16 Mitgliederversammlung,
Bonn, 19.03.2013

Polarized Beams: a powerful tool for particle physics,
XLIV. Arbeitstreffen Kernphysik, inv. talk,
Schleching, 23.02.2013

Strömende Flüssigkeiten; der Weg zum extremen Vakuum,
Vorlesungsstunde über Experimentalphysik, inv. lecture,
THM, Giessen, 07.01.2013

Aktivitäten des Komitees für Beschleunigerphysik,
KET und KHuK Jahrestagungen,
Physikzentrum Bad Honnef, 17. und 29.11.2012

Project D2: Beam and spin dynamics in a fast ramping stretcher ring,
SFB/TR 16 Begutachtung 3. Förderperiode,
Bonn, 25.09.2012

Beschleunigerphysik im FB "Kondensierte Materie": Status und Ziele,
Strategiegespräch zum BMBF Förderschwerpunkt "Erforschung kondensierter Materie", inv. talk,
Bundesministerium für Bildung und Forschung, Bonn, 20.06.2012

R&D at the Electron Stretcher Accelerator ELSA: Status 03/2012,
Crystal Barrel Kollaborationstreffen,
Bonn, 12.03.2012

The Bonn Electron Stretcher Accelerator ELSA and the BGO-OD electron beamline,
BGO-OD Kollaborationstreffen,
Bonn, 06.03.2012

Challenges in Accelerator Physics,
HGS-HIRe Graduate Days, inv. talk,
Königstein, 27.10.2011

The Electron Stretcher Accelerator ELSA and the BGO-OD beamline,
BGO-OD Kollaborationstreffen,
Bonn, 14.09.2011

R&D at the Electron Stretcher Accelerator ELSA: Status 03/2011,
Crystal Barrel Kollaborationstreffen,
Bonn, 15.03.2011

Polarisierte Elektronen für die Hadronen- und Kernphysik,
Fachbereich Physik der Universität Mainz, inv. talk,
Mainz, 19.11.2010

R&D at the Electron Stretcher Accelerator ELSA: Status 2010,
Crystal Barrel Kollaborationstreffen,
Bonn, 05.11.2010

PESP2010 - a short summary,
SPIN2010 Symposium, inv. talk
Forschungszentrum Jülich, 29.09.2010

R&D at the Electron-Stretcher-Accelerator ELSA,
Arbeitstreffen SFB/TR 16,
Bochum, 10.09.2010

HERA als Elektronen-Protonen-Kollider mit Doppelpolarisation,
Ideenmarkt Beschleuniger,
DESY, Hamburg, 16.06.2010

Polarisierte Elektronenstrahlen in ELSA,
Seminar ''Physik und Technik von Beschleunigern'', inv. talk,
Darmstadt, 31.05.2010

Beschleunigerphysik in Deutschland: Zahlen, Fakten, KfB,
Koordinationstreffen Beschleunigerphysik, DPG-Frühjahrstagung,
Bonn, 18.03.2010

Polarisierte Teilchenstrahlen in Kreisbeschleunigern,
Gruppenbericht, DPG-Frühjahrstagung,
Bonn, 16.03.2010

ELSA: Status and Projects 2010,
Crystal Barrel Kollaborationstreffen,
Bonn, 08.02.2010

Schwerpunktthema: Strahldynamik,
Beschleunigerentwicklung an deutschen Hochschulen für die Grundlagenforschung an Grossgeräten, inv. talk,
DESY, Hamburg, 17.09.2009

Introduction to Accelerator Physics,
Terascale Accelerator School 2009, inv. lecture,
Universitätskolleg Bommerholz, 07./08.09.2009

Polarisierte Elektronenstrahlen - Ein wichtiges Werkzeug zur Untersuchung der Kernkraft,
Kernphysikalisches Kolloquium des HISKP, inv. talk,
Bonn, 14.05.2009

Beschleuniger für HEP/HKP,
Runder Tisch PT-DESY: Beschleunigerphysik in Deutschland - Status und Perspektiven, inv. talk,
DESY, Hamburg, 07.05.2009

SFB/TR 16 TP D2: Status and Actual / Planned Work Programme,
Arbeitstreffen SFB/TR 16,
Giessen, 17.02.2009

Polarisierte Elektronenstrahlen - Ein wichtiges Werkzeug zur Untersuchung der Kernkraft,
Helmholtz-Zentrum Berlin für Materialien und Energie, inv. talk,
BESSY, Berlin, 12.02.2009

Polarised Electrons in ELSA: Physics, Problems and Status,
Crystal Barrel Kollaborationstreffen,
Basel, 12.01.2009

Ein Elektronen-Nukleonen-Collider am HESR von FAIR,
Treffen der Arbeitsgruppe ENC@FAIR,
Mainz, 12.12.2008

ELSA,
Novemberworkshop, inv. talk,
Frankfurt, 13.11.2008

ELSA: Status 10/2008,
Teilprojektleitertreffen SFB/TR 16,
Bonn, 05.11.2008

The Bonn Electron Stretcher Accelerator ELSA and the B1 electron beamline,
B1 meeting,
Bonn, 30.10.2008

Compton Polarimetry at ELSA,
Workshop on Sources of Polarized Electrons and High Brightness Electron Beams PESP2008,
Jefferson Lab, Newport News, VA, 03.10.2008

Status Report ELSA,
Crystal Barrel Kollaborationstreffen,
Bonn, 08.09.2008

Accelerator Physics: a 45 minutes crash course,
Hadron Physics Summer School 2008, inv. lecture,
Physikzentrum Bad Honnef, 11.08.2008

Status Report ELSA,
Crystal Barrel Kollaborationstreffen,
Bonn, 20.05.2008

Accelerator Physics, Exercises Accelerator Physics,
Terascale Accelerator School 2008, inv. lecture,
DESY, Hamburg, 10./11.03.2008

Status Report ELSA,
Crystal Barrel Kollaborationstreffen,
Bonn, 07.03.2008

Project D2: Acceleration of high currents in a fast ramping stretcher ring,
SFB/TR 16 Begutachtung 2. Förderperiode,
Bonn, 12.02.2008

ELSA, Bonn: Forschung und Entwicklung an der Elektronen-Stretcher-Anlage für Hadronenphysik,
Physikalisches Kolloquium, inv. talk,
Dortmund, Dortmund, 29.01.2008

Status und Perspektiven der Bonner Elektronen-Stretcher-Anlage ELSA,
MAMI-Seminar des Instituts für Kernphysik, inv. talk,
Mainz, Mainz, 22.11.2007

Status Report ELSA,
Crystal Barrel Kollaborationstreffen,
Bonn, 07.03.2007

Physik der Töne, Klänge und Harmonien,
Veranstaltungsreihe zum 125. Jubiläum, inv. talk,
Ernst-Moritz-Arndt-Gymnasium, Bonn, 01.03.2007

Status of ELSA,
Crystal Barrel Kollaborationstreffen,
Bonn, 15.01.2007

ELSA: Status D2,
Arbeitstreffen SFB/TR 16,
Universitätskolleg Bommerholz, 28.11.2006

Status of ELSA,
Crystal Barrel Kollaborationstreffen,
Bonn, 27.07.2006

ELSA and the new CB beamline,
Crystal Barrel Kollaborationstreffen,
Bonn, 15.06.2006

Mikroskopie mit Teilchenbeschleunigern,
Wissenschaftstreff: Schnittpunkt Schule-Hochschule,
Anno-Gymnasium, Siegburg, 01.06.2006

Einblicke in die Welt der Elementarteilchen,
Wissenschaftstreff: Schnittpunkt Schule-Hochschule,
Beethoven-Gymnasium, Bonn, 17.01.2006

ELSA: Status 2005,
Arbeitstreffen SFB/TR 16,
Giessen, 23.11.2005

The Bonn Electron Stretcher Accelerator: Past and Future,
Symposium 20 Years of Physics at the Mainz Microtron MAMI, inv. talk,
Mainz, 20.10.2005

Teilchenbeschleuniger: Gigantische Mikroskope zur Untersuchung der Bausteine der Materie,
Heisenbergforum, Werner-Heisenberg-Gymnasium, inv. talk,
Leverkusen, 15.09.2005

Teilchenbeschleuniger: Gigantische Mikroskope zur Untersuchung der Bausteine der Materie,
Wissenschaftstreff: Schnittpunkt Schule-Hochschule,
Ahrweiler, 23.06.2005

Teilchenbeschleuniger: Gigantische Mikroskope zur Untersuchung der Bausteine der Materie,
Wissenschaftstreff: Schnittpunkt Schule-Hochschule,
Wesseling, 26.05.2005

Warum klingt eine Geige anders als eine Blockflöte - eine physikalische Betrachtung von Musik und Instrumenten,
Kinderuniversität Bonn, inv. talk,
Bonn, 21.02.2005

ELSA, ein Mikroskop zur Untersuchung der Kernbausteine,
Veranstaltungsreihe Physik für uns, inv. talk,
Bonn, 10.03.2004

Die Beschleunigeranlage ELSA des Physikalischen Instituts,
Ringvorlesung Struktur der Hadronen: "Vom Proton zum Pentaquark",
Bonn, 02.02.2004

Acceleration of polarized electrons in a medium size stretcher ring up to 5 GeV,
SFB/TR 16 Begutachtung 1, Förderperiode,
Bonn, 27.01.2004

Die Präparation eines polarisierten Elektronenstrahls an ELSA,
Abschlusstreffen des DFG-Schwerpunktprogramms "Untersuchungen der hadronischen Struktur von Nukleonen und Kernen mit elektromagnetischen Sonden",
Physikzentrum Bad Honnef, 14.04.2003

Physik und Musik,
Physik heute: Vortragsreihe fur Schülerinnen und Schüler und ihre Lehrkräfte, inv. talk,
Bonn, 12.03.2003

Die Physik der Kirchenorgel,
Antrittsvorlesung am Dies Academicus,
Bonn, 30.05.2001

Messung der Gravitationskonstante mit hoher Präzision: Das Seattle-Experiment,
Habilitationskolloquium,
Bonn, 16.02.2001

The 50 kV inverted source of polarized electrons at ELSA,
Workshop on Polarized Electron Source and Polarimeters,
Nagoya, 13.10.2000

A new injector for polarized electrons at ELSA,
Symposium on the Gerasimov-Drell-Hearn sum rule and the nucleon structure in the resonance region, inv. talk,
Mainz, 15.06.2000

Erzeugung spinpolarisierter Elektronen für ELSA,
Physikalisches Seminar, inv. talk,
Bonn , 15.05.2000

Das neue Injektionssystem polarisierter Elektronenstrahlen an ELSA,
DPG-Frühjahrstagung,
Dresden, 23.03.2000

A 50 kV inverted polarized gun,
Low Energy Polarized Electron Workshop,
St. Petersburg, 03.09.1998

The Compton Polarimeter at ELSA,
Workshop on High-Energy Polarimeters,
Amsterdam, 09.09.1996

Beschleunigerphysik bei ELSA,
Physikalisches Seminar, inv. talk,
Bonn, 12.11.1994

High resolution measurements of neutral air density fluctuations,
10th ESA Symposium on European Rocket and Ballon Programmes and Related Research,
Mandelieu-Cannes, 31.05.1991

Turbulenz in der mittleren Atmosphäre,
Physikalisches Seminar, inv. talk,
Bonn, 10.12.1990

Static and dynamic instabilities: a suitable explanation of turbulent layers in the middle atmosphere?
XVI General Assembly on the European Geophysical Society,
Wiesbaden, 24.04.1990

Turbulenz in der mittleren und hohen Atmosphäre gemessen während DYANA,
54. Physikertagung der Deutschen Geophysikalischen Gesellschaft,
München, 15.03.1990

Neutral air turbulence in the middle and upper atmosphere observed during the MAC/EPSILON campaign,
9th ESA Symposium on European Rocket and Ballon Programmes and Related Research,
Lahnstein, 07.04.1989

Temperaturen von 30 - 125 km Höhe in polaren Breiten im Herbst,
49. Jahrestagung der Deutschen Geophysikalischen Gesellschaft,
Stuttgart, 23.02.1989

Jahreszeitliche Variation der thermischen Struktur der Atmosphäre im Höhenbereich 50 - 100 km in polaren Breiten,
Physikalisches Seminar, inv. talk,
Bonn, 21.11.1988