Scientific Commons: T. Weiland

Computation of Short Range Wake Field with PBCI. (2008)

E. Gjonaj, DESY Maschinenphysik, T. Lau, T. Weiland, R. Wanzenberg

Journal article

Wakefield and RF Kicks due to Coupler Asymmetry in TESLA-type Accelerating Cavities. 2008-06-23 - 2008-06-27 (2008)

DESY Maschinenphysik, C. Adolphsen, Z. Li, M. Dohlus, ...

Contribution to a conf. proceeding (book/online)

Coupler Kick for Very Short Bunches and its Compensation. 2008-06-23 - 2008-06-27 (2008)

M. Dohlus, DESY Maschinenphysik, I. Zagorodnov, E. Gjonaj, T. Weiland

Contribution to a conf. proceeding (book/online)

Micro- and macroscopic simulation of periodic metamaterials (2008)

R. Schuhmann, B. Bandlow, G. Lubkowski, T. Weiland

In order to characterize three-dimensional, left-handed metamaterials (LHM) we use electromagnetic field simulations of unit cells. For waves traveling in one of the main directions of the periodic...

Impedance Analysis Of The Pep-II Vacuum Chamber (2007)

T. Weiland

The PEP-II high energy ring (HER) vacuum chamber consists of a copper tube with periodically spaced pumping slots. The impedance of the vacuum chamber due to the slots is analyzed. Both narrow-band...

Operation of a free electron laser from the extreme ultraviolet to the water window (2007)

Ackermann, W., Asova, G., Ayvazyan, V., Azima, A., Baboi, N., Bähr, J., ...

We report results on the performance of a free electron laser operating at a wavelength of 13.7 nm where unprecedented peak and average powers for a coherent EUV radiation source have been measured....

Operation of a free electron laser from the extreme ultraviolet to the water window (2007)

Ackermann, W., Asova, G., Ayvazyan, V., Azima, A., Baboi, N., Bähr, J., ...

We report results on the performance of a free electron laser operating at a wavelength of 13.7 nm where unprecedented peak and average powers for a coherent EUV radiation source have been measured....

Conformal FDTD-Methods to Avoid Time Step Reduction with and without Cell Enlargement. (2007)

I. Zagorodnov, DESY Maschinenphysik, R. Schuhmann, T. Weiland

Journal article

Operation of a Free-electron Laser from the Extreme Ultraviolet to the Water Window. (2007)

W. Ackermann, DESY Maschinenphysik, G. Asova, V. Ayvazyan, A. Azima, N. Baboi, ...

Journal article

Operation of a free-electron laser from the extreme ultraviolet to the water window (2007)

W. Ackermann, G. Asova, V. Ayvazyan, A. Azima, N. Baboi, ...

Journal article

Numerical Simulation of Synchrotron Radiation for Bunch Diagnostics. 2006-06-26 - 2006-06-30 (2006)

A. Paech, DESY Maschinenphysik, W. Ackermann, T. Weiland, O. Grimm

Contribution to a conf. proceeding (book/online)

The Short-range Wakefields in the BTW Accelerating Structure of the ELETTRA LINAC. (2006)

P. Craievich, DESY Maschinenphysik, T. Weiland, I. Zagorodnov

Journal article

Time Domain Wake Field Computation with Boundary Element Method. (2006)

K. Fujita, DESY Maschinenphysik, H. Kawaguchi, I. Zagorodnov, T. Weiland

Journal article

A Simplified Conformal (SC) Method for Modeling Curved Boundaries in FDTD Without Time Step Reduction. 2006-06-11 - 2006-12-16 (2006)

R. Schuhmann, DESY Maschinenphysik, I. Zagorodnov, T. Weiland

Contribution to a conf. proceeding (book/online)

TE/TM Alternating Direction Scheme for Wake Field Calculation in 3D. (2006)

I. Zagorodnov, DESY Maschinenphysik, T. Weiland

Journal article

First operation of a free- electron laser generating GW power radiation at 32 nm wavelength. (2006)

V. Ayvazyan, N. Baboi, J. Bähr, V. Balandin, B. Beutner, ...

Journal article

XFEL - The European X-Ray Free-Electron Laser - Technical Design Report (2006)

A. Aghababyan, M. Altarelli, C. Altucci, G. Amatuni, P. Anfinrud, ...

Book

Direct Measurement of Geometric and Resistive Wakefields in Tapered Collimators for the International Linear Collider (2006)

Watson, Nigel, Adey, D, Angal-Kalinin, Deepa, Arnold, R, Barlow, Roger John, Beard, Carl David, ...

Test Beam Studies at SLAC's End Station A, for the International Linear Collider (2006)

Woods, M, Adey, D, Adolphsen, C, Albrecht, M, Allison, WWM, Angal-Kalinin, Deepa, ...

Stochastic Cooling Electrodes for a Wide Velocity Rangel in the CR (2005)

Balk, MC, Caspers, F, Franzke, B, Nolden, F, Peschke, C, Thorndahl, L, ...

The CR storage ring is part of the FAIR project at GSI.It serves as a first stage of stochastic cooling for secondary rare isotopes at v/c=0.83 as well as for antiprotons at v/c=0.97. To avoid the...

Stochastic Cooling Electrodes for a Wide Velocity Rangel in the CR (2005)

Balk, MC, Caspers, F, Franzke, B, Nolden, F, Peschke, C, Thorndahl, L, ...

The CR storage ring is part of the FAIR project at GSI.It serves as a first stage of stochastic cooling for secondary rare isotopes at v/c=0.83 as well as for antiprotons at v/c=0.97. To avoid the...

A Test Facility for the International Linear Collider at SLAC End Station A, for Prototypes of Beam Delivery and IR Components (2005)

Woods, M., Erickson, R., Frisch, J., Hast, C., Jobe, R. K., Keller, L., ...

The SLAC Linac can deliver damped bunches with ILC parameters for bunch charge and bunch length to End Station A. A 10Hz beam at 28.5 GeV energy can be delivered there, parasitic with PEP-II...

Status and First Results from the Upgraded PITZ Facility (2005)

Oppelt, A., Abrahamyan, K., Asova, G., Bähr, J., Dimitrov, G., Gensch, U., ...

Since December 2004, the photo injector test facility at DESY in Zeuthen (PITZ) has been upgraded. A normal conducting copper booster cavity has been installed and the diagnostics beamline has been...

Innovation races. An experimental study on strategic research activities. (2005)

Nicklisch, Andreas, Cantner, U., Weiland, T.

In an experimental setting, firms in a duopoly market engage in a patent tournament and compete for profit-enhancing product advancements. The firms generate income by matching exogenously defined...

Stable modeling of arbitrarily oriented thin slots in the FDTD method (2005)

Edelvik, F., Weiland, T.

A subcell model for thin wires in the finite-difference time-domain (FDTD) method using modified telegraphers equations has been developed by Holland et A Edelvik has previously presented an...

Status and First Results from the Upgraded PITZ Facility (2005)

Oppelt, A., Abrahamyan, K., Asova, G., Bähr, J., Dimitrov, G., Gensch, U., ...

Since December 2004, the photo injector test facility at DESY in Zeuthen (PITZ) has been upgraded. A normal conducting copper booster cavity has been installed and the diagnostics beamline has been...

Status and First Results from the Upgraded PITZ Facility (2005)

Oppelt, A., Abrahamyan, K., Asova, G., Bähr, J., Dimitrov, G., Gensch, U., ...

Since December 2004, the photo injector test facility at DESY in Zeuthen (PITZ) has been upgraded. A normal conducting copper booster cavity has been installed and the diagnostics beamline has been...

Investigation of Planar Pick-up and Kicker Electrodes for Stochastic Cooling (2002)

Balk, M, Schuhmann, R, Weiland, T, Nolden, F, Caspers, Friedhelm

The success of stochastic cooling crucially depends on the interaction between the beam and high frequency devices for detection (pick-up electrodes) and deflection (kicker electrodes). This...

Instructed neutralization, spontaneous neutralization and prevented neutralization after an obsession-like thought. (2002)

Hout , M. Van Den, Kindt, M., Weiland, T., Peters, M.

Building on 2 earlier experiments (S. Rachman et al [1996] and M. A. van den Hout [2001]) the present study investigated the effects of neutralizing the consequences of an obsession-like thought in...

Transition dynamics of the wake fields of ultra short bunches (2000)

Novokhatskii, A V, Timm, M, Weiland, T

A Summary Of Recent Work On Beam Dynamics And Collective Phenomena In LEP Versions 8 And 9 (2000)

Hofmann, A, Hübner, K, Hutton, A M, Jowett, John M, Keil, Eberhard, ...

A Summary Of Recent Work On Beam Dynamics And Collective Phenomena In LEP Versions 8 And 9 (2000)

Hofmann, A, Hübner, K, Hutton, A M, Jowett, John M, Keil, Eberhard, ...

The Total Energy Loss Of Electron-Positron Bunches Into The SPSp Traveling Wave Cavity (2000)

Weiland, T

Modes and mode losses in the LEP accelerating cell (2000)

Henke, H, Weiland, T

A Comparison Between Three Different Computer Codes For The Evaluation Of Higher Mode Losses Into Cavities (2000)

Bane, Karl Leopold Freitag, Weiland, T

Higher Mode Losses In The PS Cavity And In The SPS Standing Wave Cavity (2000)

Weiland, T

The surface roughness wakefield effect (2000)

Novokhatskii, A V, Timm, M, Weiland, T

Single bunch energy spread in the TESLA cryomodule (2000)

Novokhatskii, A V, Timm, M, Weiland, T

First observation of self-amplified spontaneous emission in a free-electron laser at 109 nm wavelength (2000)

Andruszkow, J., Aune, B., Ayvazian, V., Baboi, N., Bakker, R., Balakin, V., ...

We present the first observation of self-amplified spontaneous emission (SASE) in a free-electron laser (FEL) in the vacuum ultraviolet regime at 109 nm wavelength (11 eV). The observed free-electron...

First observation of self-amplified spontaneous emission in a free-electron laser at 109 nm wavelength (2000)

Andruszkow, J., Aune, B., Ayvazian, V., Baboi, N., Bakker, R., Balakin, V., ...

We present the first observation of self-amplified spontaneous emission (SASE) in a free-electron laser (FEL) in the vacuum ultraviolet regime at 109 nm wavelength (11 eV). The observed free-electron...

First observation of self-amplified spontaneous emission in a free-electron laser at 109 nm wavelength (2000)

Andruszkow, J., Aune, B., Ayvazian, V., Baboi, N., Bakker, R., Balakin, V., ...

We present the first observation of self-amplified spontaneous emission (SASE) in a free-electron laser (FEL) in the vacuum ultraviolet regime at 109 nm wavelength (11 eV). The observed free-electron...

Anderson Localization in a String of Microwave Cavities (1999)

Dembowski, C., Hofferbert, R., Rehfeld, H., Richter, A., Weiland, T.

The field distributions and eigenfrequencies of a microwave resonator which is composed of 20 identical cells have been measured. With external screws the periodicity of the cavity can be perturbed...

Biomimetic Morphogenesis of Fluorapatite-Gelantin-Composites: Fractal Growth, the Question of Intrinsic Electric Fields, Core/Shell-Assemblies, Hollow Spheres and Reorganization of Denatured Collagen (1999)

Busch, S., Dolhaine, H., DuChesne, A., Heinz, S., Hochrein, O., Laeri, F., ...

Biomimetic Morphogenesis of Fluorapatite-Gelatin Composites: Fractal Growth, the Question of Intrinsic Electric Fields, Core/shell Assemblies, Hollow Spheres and Reorganization of Denatured Collagen (1999)

Busch, S., Dolhaine, H., Du Chesne, A., Heinz, S., Hochrein, O., Laeri, F., ...

Self-Consistent Model for the Beams in Accelerators (1998)

A. Novokhatski, T. Weiland

It is proposed to use Ensembles of particles instead of "macro" particles for modeling the beams in accelerators. Each Ensemble describes the dynamics of the real bunch in the 6 dimensional...

Wave Dynamical Chaos in a Superconducting Three-Dimensional Sinai Billiard (1997)

Alt, H., Dembowski, C., Hofferbert, R., Rehfeld, H., Richter, A., ...

Based on very accurate measurements performed on a superconducting microwave resonator shaped like a desymmetrized three-dimensional (3D) Sinai billiard, we investigate for the first time spectral...

The short-range wakefields in the SBLC linac (1997)

Bane, Karl Leopold Freitag, Timm, M, Weiland, T

Numerical simulation of the PEP-II beam position monitor (1996)

Kurita, N R, Martin, D, Ng, C K, Smith, S, Weiland, T

Impedance of the PEP-II DIP screen (1996)

Ng, C K, Weiland, T

Accelerator physics, technologies, and facilities: working group report (1996)

Hartill, D L, Holmes, S D, Palmer, R B, Ruth, Ronald D, Brinkmann, R, Chao, A, ...

Spurious oscillations in high power klystrons (1995)

Krietenstein, B, Ko, K, Lee, T, Becker, U, Weiland, T, Dohlus, M

Comparison of CONDOR, FCI and MAFIA calculations for a 150MW S-band klystron with measurements (1995)

Becker, U, Weiland, T, Dohlus, M, Lütgert, S, Sprehn, D

The S-Band 36-cell experiment (1995)

Krietenstein, B, Podebrad, O, Van Rienen, U, Weiland, T, Glock, H W, Hülsmann, P, ...

Impedance study for the PEP-II B-factory: addendum (1995)

Heifets, S, Chao, A, Daly, E F, Ko, K, Kurita, N R, Lin, X, ...

Impedance analysis of the PEP-II vacuum chamber (1995)

Ng, C K, Weiland, T

Simulation of PEP-II beam position monitors (1995)

Ng, C K, Weiland, T, Martin, D, Smith, S, Kurita, N R

Impedance study for the PEP-II B-factory (1995)

Heifets, S, Ko, K, Ng, C, Lin, X, Chao, A, Stupakov, G, ...

Spurious Oscillations In High Power Klystrons (1995)

B. Krietenstein, K. Ko, T. Lee, U. Becker, T. Weiland, M. Dohlus

Spurious oscillations in high power klystrons are found to occur in the gun region, in the cavities in the main body of the tube, or in the drift tunnel. The criteria that determine whether a mode...

Transient electromagnetic fields excited by bunches of charged particles in cavities of arbitrary shape (1990)

Weiland, T

Wake potentials of a relativistic current in a cavity (1990)

Weiland, T, Zotter, Bruno W

A simple model for the energy loss of a bunched beam traversing a cavity (1990)

Bane, Karl Leopold Freitag, Chao, A, Weiland, T

Wake potentials of a relativistic current in a cavity (1990)

Weiland, T, Zotter, Bruno W

BCI - a computer program for transient electromagnetic fields of bunched beams in accelerators (1990)

Weiland, T

Transient electromagnetic fields of bunched beam in accelerating structures with infinitely long tubes (1990)

Weiland, T