Magnetic field measurement for a THz undulator using the vibrating wire method

Shigeru Kashiwagi, Yuu Tanaka, Fujio Hinode, Masayuki Kawai, Xiangkun Li, Toshiya Muto, Ken Ichi Nanbu, Hiroyuki Hama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We constructed an undulator of Halbach planer type for generation of intense coherent terahertz radiation (THz) with the very short electron bunch. The length and the number of periods are 100 mm and 25, respectively. Its maximum magnetic field is 0.41 T and K-value is 3.82 with 54 mm gap. The vibrating wire method is studied to measure the magnetic field of the undulator. The numerical studies have been performed for the THz undulator and derived a relation between a reproducibility of undulator field and the number of the harmonic modes [1]. A test experiment was carried out using 200 mm wire and a pair of permanent magnet blocks. The results of the test experiment are described.

Original languageEnglish
Title of host publicationIPAC 2012 - International Particle Accelerator Conference 2012
Pages732-734
Number of pages3
Publication statusPublished - 2012 Dec 1
Event3rd International Particle Accelerator Conference 2012, IPAC 2012 - New Orleans, LA, United States
Duration: 2012 May 202012 May 25

Publication series

NameIPAC 2012 - International Particle Accelerator Conference 2012

Other

Other3rd International Particle Accelerator Conference 2012, IPAC 2012
CountryUnited States
CityNew Orleans, LA
Period12/5/2012/5/25

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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