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Title |
Other Keywords |
Page |
| TUP057 |
The Highly Adjustable Magnet Undulator |
undulator, simulation, electron, radiation |
499 |
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- M. Hamberg
Uppsala University, Uppsala, Sweden
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The highly adjustable magnet undulator is a concept aiming for flexibility and extensive tunability of undulator settings in the linear as well as the helical regime. I report about suggested layout, magnetic simulations.
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| WEP051 |
The Prototype of New Variable Period Undulator for Novosibirsk Free Electron Laser. |
undulator, simulation, FEL, electron |
677 |
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- I.V. Davidyuk
NSU, Novosibirsk, Russia
- O.A. Shevchenko, V.G. Tcheskidov
BINP SB RAS, Novosibirsk, Russia
- N. Vinokurov
KAERI, Daejon, Republic of Korea
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To improve the parameters of the second stage Novosibirsk free electron laser one plans to replace the existing electromagnetic undulator by permanent-magnet variable-period undulator (VPU). The VPUs have several advantages compared to conventional undulators, which include wider radiation wavelength tuning range and an option to increase the number of poles for shorter periods with constant undulator length. Both these advantages will be realized in the new undulator under development in Budker INP. The idea of the permanent-magnet VPU was proposed just several years ago and it has not been properly tested yet. There are some technical problems, which have to be solved before this idea can be implemented in practice. To check the solution of these problems we designed and manufactured a small undulator prototype, which has just several periods. In this paper, the results of mechanical and magnetic measurements of this undulator prototype are presented and compared with simulations.
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Poster WEP051 [3.821 MB]
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