Design and development of a laser interferometer for magnet alignment and phase error analysis in an undulator
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2020.107490
Abstract: Abstract In this paper we discuss design and development of a laser interferometer for undulator measurement application. The vertical misalignment of the magnets in the undulator results in non uniformity in the undulator gap and… read more here.
Keywords: laser interferometer; laser; undulator; phase error ... See more keywords
Helical undulator based on partial redistribution of uniform magnetic field
Sign Up to like & getrecommendations! Published in 2017 at "Physical review accelerators and beams"
DOI: 10.1103/physrevaccelbeams.20.122401
Abstract: A new type of helical undulator based on redistribution of magnetic field of a solenoid by ferromagnetic helix has been proposed and studied both in theory and experiment. Such undulators are very simple and efficient… read more here.
Keywords: undulator based; helical undulator; redistribution; undulator ... See more keywords
Universal representation of undulator phase errors
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review Accelerators and Beams"
DOI: 10.1103/physrevaccelbeams.21.110704
Abstract: The phase error is an important parameter to represent the quality of an undulator, which makes it possible to quickly evaluate the reduction in photon intensity due to magnetic field errors without rigorous numerical calculations.… read more here.
Keywords: representation undulator; phase; universal representation; undulator ... See more keywords
Effects of energy spread on brightness and coherence of undulator sources.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of synchrotron radiation"
DOI: 10.1107/s1600577518010330
Abstract: The (spectral) brightness for partially transverse coherent sources such as synchrotron radiation and free-electron laser sources can be defined as the maximum of the Wigner distribution. Then, the brightness includes information on both coherence and… read more here.
Keywords: energy spread; brightness; undulator; radiation ... See more keywords
Design of a Short-Period Helical Permanent Magnet Undulator
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2018.2791922
Abstract: The design of a helical permanent magnet undulator with a period length of 24 mm for the production of circularly and linearly polarized radiation will be discussed. This undulator consists of four helically shaped magnet… read more here.
Keywords: helical permanent; permanent magnet; magnet; period ... See more keywords
Thermal Analysis of a Helical Superconducting Undulator Cryostat
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2019.2900608
Abstract: A novel cryocooler-cooled helical superconducting undulator (HSCU) was built and installed in the Advanced Photon Source (APS) storage ring and has been in operation since January 2018. The new cryostat for the HSCU is a… read more here.
Keywords: hscu; undulator; magnet; cryostat ... See more keywords
Field Measurements of a Cryogenic Permanent Magnet Undulator at the TPS
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2019.2959974
Abstract: A PrFeB-based cryogenic permanent-magnet undulator (CPMU) with a period length of 15 mm (CU15) is being constructed to provide high brilliant X-rays for the Taiwan Photon Source (TPS) nano-probe beamline. Field measurements of this undulator… read more here.
Keywords: field; magnet undulator; permanent magnet; undulator ... See more keywords
Characterization Study of a Hybrid Undulator
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2016.2628738
Abstract: In this paper, we describe the design details of a prototype DEVU25.20h, a 9 mm minimum gap, hybrid undulator designed, built, and measured in house at the IDD Laboratory, DAVV, Indore, India. The undulator is… read more here.
Keywords: gap; characterization study; undulator; study hybrid ... See more keywords
Development of PAL-XFEL undulator system
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Korean Physical Society"
DOI: 10.3938/jkps.71.744
Abstract: Pohang Accelerator Laboratory (PAL) have developed a 0.1 nm SASE based FEL based on 10 GeV S-band linear accelerator named PAL-XFEL. At the first stage, PAL-XFEL needs two undulator lines for photon source. The hard… read more here.
Keywords: development pal; undulator system; pal xfel; undulator ... See more keywords