Open AccessDesign studies of a proof-of-principle experiment on THz SASE FEL at PITZ
Author(s) -
X.-K. Li,
M. Krasilnikov,
Prach Boonpornprasert,
H. Shaker,
Y. Chen,
James Good,
Matthias Groß,
Holger Huck,
Igor Isaev,
Christian Koschitzki,
Shankar Lal,
Osip Lishilin,
Gregor Loisch,
David Melkumyan,
Raffael Niemczyk,
A. Oppelt,
Houjun Qian,
Guan Shu,
F. Stephan,
G. Vashchenko
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1350/1/012036
Subject(s) - desy , beamline , undulator , physics , optics , free electron laser , injector , terahertz radiation , beam (structure) , laser , particle accelerator , range (aeronautics) , nuclear physics , engineering , thermodynamics , aerospace engineering
A free-electron laser based THz source is undergoing design studies at the Photo Injector Test facility at DESY in Zeuthen (PITZ). It is considered as a prototype for pump-probe experiments at the European XFEL, benefiting from the fact that the electron beam from the PITZ facility has an identical pulse train structure as the XFEL pulses. In the proposed proof-of-principle experiment, the electron beam (up to 4 nC bunch charge and 200 A peak current) will be accelerated to 16-22 MeV/c to generate SASE radiations in an LCLS-I undulator in the THz range between 60 and 100 pm with an expected energy of up to ~1 mJ/pulse. In this paper, we report our simulations on the optimization of the photo-injector and the design of the transport and matching beamline. Experimental investigations on the generation, characterization and matching of the high charge beam in the existing 22-m-long beamline will also be presented.