M(-2012)

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2018-09-27
15:27
OpenAccess [PUBDB-2018-03666] Book/Report/Internal Report
; ; ; et al
Achievement of 35 MV/m in the Superconducting Nine-Cell Cavities for TESLA
[TESLA 2004-05]
TESLA Reports 20 pp. () [10.3204/PUBDB-2018-03666]  GO
The Tera Electronvolt Superconducting Linear Accelerator TESLA is the only linear electron-positron collider project based on superconductor technology for particle acceleration. In the first stage with 500 GeV center-of-mass energy an accelerating field of 23.4 MV/m is needed in the superconducting niobium cavities which are operated at a temperature of 2 K and a quality factor $Q_{0}$ of $10^{10}$ [...]
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2018-09-27
14:08
OpenAccess [PUBDB-2018-03658] Book/Report/Internal Report
; ; ; et al
Improved Surface Treatment of the Superconducting TESLA Cavities
[TESLA 2004-04]
TESLA Reports 11 pp. () [10.3204/PUBDB-2018-03658]  GO
The proposed linear electron-positron collider TESLA is based on 1.3 GHz superconducting niobium cavities for particle acceleration. For a center-of-mass energy of 500 GeV an accelerating field of 23.4 MV/m is required which is reliably achieved with a niobium surface preparation by chemical etching. [...]
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2018-09-27
13:30
OpenAccess [PUBDB-2018-03652] Book/Report/Internal Report

Comparison of Stripline and Cavity Beam Position Monitors
[TESLA Report 2004-03]
TESLA Reports 9 pp. () [10.3204/PUBDB-2018-03652]  GO
Operational principles of stripline and pill-box cavity beam position monitors (BPMs) are discussed. Their theoretically best achievable position and time resolutions are computed. [...]
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2018-09-27
09:47
OpenAccess [PUBDB-2018-03625] Book/Report/Internal Report
; ; ; et al
Anti-multipactor TiN coating of RF power coupler components for TESLA at DESY
[TESLA Report 2004-02]
TESLA Reports 40 pp. () [10.3204/PUBDB-2018-03625]  GO
A development project was carried out at DESY, aimed at reducing secondary electron emission and multipactor effects in TESLA couplers by TiN layers generation on surfaces which were not protected in this way previously. Thin TiN films on ceramic or metallic surfaces were produced by deposition from Ti vapor in low pressure ammonia. [...]
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2018-09-27
09:37
[PUBDB-2018-03621] Book/Report/Internal Report
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Wake Fields Generated by the LOLA-IV Structure and the $3^{rd}$ Harmonic Section in TTF-II
[TESLA Report 2004-01]
TESLA Reports 21 pp. ()
In this report we estimate long- and short-range wake functions for new elements to be used in TESLA Test Facility (TTF) – II. The wake potentials of the LOLA-IV structure and the $3^{rd}$ harmonic section are calculated numerically for very short bunches and analytical approximations for wake functions in short and long ranges are obtained by fitting procedures based on analytical estimations..
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2018-09-27
09:20
OpenAccess [PUBDB-2018-03620] Internal Report
; ; ; et al
Numerical Studies on the Electro-Optic Sampling of Relativistic Electron Bunches
33 pp. () [10.3204/PUBDB-2018-03620]  GO
At the 1 GeV electron linac of the DESY vacuum-ultraviolet free-electron laseran electro-optic (EO) sampling experiment has been installed permitting to measurethe time structure of the bunches with high resolution. The transient electric fieldof the relativistic bunch corresponds to a sub-picosecond THz pulse which induces abirefringence in an electro-optic crystal. [...]
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2018-02-08
11:31
arXiv [PUBDB-2018-01135] Journal Article/Contribution to a conference proceedings
; ; ; et al
Simulations and Plans for Possible DLA Experiments at SINBAD
3rd European Advanced Accelerator Conference, EAAC 2017, ElbaElba, Italy, 24 Sep 2017 - 29 Sep 20172017-09-242017-09-29 Nuclear instruments & methods in physics research / A S0168900218301219 () [10.1016/j.nima.2018.01.088]  GO
In this work we present the outlines of possible experiments for dielectric laser acceleration (DLA) of ultra-short relativistic electron bunches produced by the ARES linac, currently under construction at the SINBAD facility (DESY Hamburg). The experiments are to be performed as part of the Accelerator on a Chip International Program (ACHIP), funded by the Gordon and Betty Moore Foundation. [...]
ddc:530
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2017-05-02
13:58
[PUBDB-2017-02153] Report/Journal Article

Successive approximations for charged particle motion
[physics/0006008; DESY-00-060]
Ultramicroscopy 81(3-4), 111 - 121 () [10.1016/S0304-3991(99)00186-2]  GO
Single-particle dynamics in electron microscopes, ion or electron lithographic instruments, particle accelerators, and particle spectrographs is described by weakly nonlinear ordinary differential equations. Therefore, the linear part of the equation of motion is usually solved and the nonlinear effects are then found in successive order by iteration methods. [...]
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ddc:570
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2017-03-23
08:00
[PUBDB-2017-01458] Proceedings

HERA Review Meeting at DESY
HERA Review Meeting, HamburgHamburg, Germany , 21 Apr 1988 - 22 Apr 19881988-04-211988-04-22

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2017-03-15
10:56
OpenAccess [PUBDB-2017-01376] Preprint/Report
; ; ; et al
Exact solution for the second harmonic generation in XFELs
[DESY-05-137; arXiv:physics/0508046]
The generation of harmonic radiation through a non-linear mechanism driven by bunching at fundamental frequency is an important option in the operation of high gain Free-Electron Lasers (FELs). The use of harmonic generation at a large scale facility may result in achieving shorter radiation wavelengths for the same electron beam energy. [...]
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ddc:530
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