Reduction of Dynamic Multipole Content in Insertion Devices Using Flat Wires

Chung, Ting-Yi; Chen, Sei-Da; Chiu, Mau-Sen; Huang, Szu-Jung; Hwang, Ching-Shiang; Jan, Jyh-Chyuan; Kuo, C. Y.; Li, Yi-Ta

doi:10.18429/jacow-ipac2018-thpmk012

Cited by 1 publication

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other words, we effectively minimized the impact of static multipoles in the laboratory. Prior experiments had confirmed that the issue of the impact on the injection efficiency could be effectively addressed using the flat wire structure [17]. Although injection efficiency has not posed a challenge at the current TPS EPU installation, the utilization of the flat wire methodology has proven effective at managing the impact on the storage ring caused by the EPU.…”

Section: Experience Of Operationmentioning

confidence: 99%

From design and construction to operation of the APPLE undulator at TPS

Chung,

Chang,

Chen

et al. 2024

J. Inst.

Self Cite

View full text Add to dashboard Cite

The APPLE type of Elliptically Polarized Undulator (EPU) not only serves as a crucial circularly polarized light source in existing accelerator facilities but also acts as a standard light source for soft X-rays at the Taiwan Photon Source (TPS). Up to the present, we have autonomously designed, constructed, and operated various EPU configurations. The experience gleaned from the construction of various designs and the choice of material will be outlined in this paper. We also elaborate upon the actions taken to address the adverse effects on the magnetic fields due to the characteristics of non-identical magnets and mechanical deformation. In particular, a method for correction of discrepancies in the magnetic field of the EPU with operation in numerous phase modes employing iron shims is described. In addition, we also discuss the adverse effects on the storage ring that must be dealt with for stable operation of the EPU at the TPS and optimization of the magnetic field during the laboratory construction phase. This paper will further explain management issues related to the susceptibility of the EPU to radiation damage. The comprehensive experience related to the EPU at the TPS, from design and construction to operation will be presented in this paper.

show abstract

Section: Experience Of Operationmentioning

confidence: 99%