Journal Article

PUBDB-2017-10513

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Concept of electron beam diagnostic for the VUV SASE FEL at the TESLA Test Facility (TTF FEL) at DESY

Hahn, U.Extern* ; Pflüger, J.DESY* ; Schmidt, G. (Corresponding author)

1999
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: doi:10.1016/S0168-9002(99)00125-4

Abstract: The electron beam trajectory inside an undulator with integrated strong focusing quadrupoles is disturbed by any kind of magnetic or alignment errors of the guiding field. The electron and photon beam must overlap over the entire undulator length to achieve an optimum output of the TTF FEL (A VUV Free Electron Laser at the TESLA Test Facility: Conceptual Design Rep., DESY Print TESLA-FEL 95-03, Hamburg, 1995). Therefore, it is necessary to measure and correct the electron beam trajectory. The orbit correction in the undulator is based on two principles of orbit measurement. The absolute position of the electron beam inside the undulator can be measured at 4 points of support with calibrated monitors. The second method of measuring the beam trajectory is a beam based alignment algorithm which uses relative orbit changes at 30 distributed beam position monitors along the undulator. A mismatching of the optic at the entrance of the undulator can be seen by measuring the beam size at different locations along the undulator.

Note: F-Bereich; HASYLAB

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. TESLA-Test-Facility

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Database coverage:
; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report Hahn, U.Extern* ; Pflüger, J. ; Schmidt, G.
Concept of electron beam diagnostic for the VUV SASE FEL at the TESLA Test Facility (TTF FEL) at DESY
5 pp. (1999) [10.3204/PUBDB-2022-08145]1999     Files BibTeX | EndNote: XML, Text | RIS

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