Study for evaluation of undulator magnetic field using vibrating wire method

Yuu Tankaka; Shigeru Kashiwagi; Ken ichi Nanbu; Masayuki Kawai; Fujio Hinode; Toshiya Muto; Xiangkun Li; Hiroyuki Hama

Study for evaluation of undulator magnetic field using vibrating wire method

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

Research Center for Electron Photon Science (ELPH)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have constructed a planer undulator that is Halbach type composed of permanent magnet blocks. The period length of the undulator and the number of periods are 100 mm and 25, respectively. The vibrating wire method is studied to measure the periodic magnetic field of the undulator. A thin copper-beryllium wire is placed on the beam axis in the undulator. An AC current flow is applied in the wire, then by measuring amplitudes and phases of standing waves excited on the wire, we can reconstruct the magnetic field distribution along the wire numerically. In this paper, we discuss relations between reproducibility of the undulator field and the mode harmonics number incorporated into the reconstruction of undulator field.

Original language	English
Title of host publication	FEL 2011 - 33rd International Free Electron Laser Conference
Pages	413-416
Number of pages	4
Publication status	Published - 2011 Dec 1
Event	33rd International Free Electron Laser Conference, FEL 2011 - Shanghai, China Duration: 2011 Aug 22 → 2011 Aug 26

Publication series

Name	FEL 2011 - 33rd International Free Electron Laser Conference

Other

Other	33rd International Free Electron Laser Conference, FEL 2011
Country	China
City	Shanghai
Period	11/8/22 → 11/8/26

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Study for evaluation of undulator magnetic field using vibrating wire method. / Tankaka, Yuu; Kashiwagi, Shigeru; Nanbu, Ken ichi; Kawai, Masayuki; Hinode, Fujio ; Muto, Toshiya; Li, Xiangkun; Hama, Hiroyuki.

FEL 2011 - 33rd International Free Electron Laser Conference. 2011. p. 413-416 (FEL 2011 - 33rd International Free Electron Laser Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tankaka, Y, Kashiwagi, S, Nanbu, KI, Kawai, M, Hinode, F , Muto, T, Li, X & Hama, H 2011, Study for evaluation of undulator magnetic field using vibrating wire method. in FEL 2011 - 33rd International Free Electron Laser Conference. FEL 2011 - 33rd International Free Electron Laser Conference, pp. 413-416, 33rd International Free Electron Laser Conference, FEL 2011, Shanghai, China, 11/8/22.

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abstract = "We have constructed a planer undulator that is Halbach type composed of permanent magnet blocks. The period length of the undulator and the number of periods are 100 mm and 25, respectively. The vibrating wire method is studied to measure the periodic magnetic field of the undulator. A thin copper-beryllium wire is placed on the beam axis in the undulator. An AC current flow is applied in the wire, then by measuring amplitudes and phases of standing waves excited on the wire, we can reconstruct the magnetic field distribution along the wire numerically. In this paper, we discuss relations between reproducibility of the undulator field and the mode harmonics number incorporated into the reconstruction of undulator field.",

author = "Yuu Tankaka and Shigeru Kashiwagi and Nanbu, {Ken ichi} and Masayuki Kawai and Fujio Hinode and Toshiya Muto and Xiangkun Li and Hiroyuki Hama",

year = "2011",

month = dec,

day = "1",

language = "English",

isbn = "9783954501175",

series = "FEL 2011 - 33rd International Free Electron Laser Conference",

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AU - Tankaka, Yuu

AU - Kashiwagi, Shigeru

AU - Nanbu, Ken ichi

AU - Kawai, Masayuki

AU - Hinode, Fujio

AU - Muto, Toshiya

AU - Li, Xiangkun

AU - Hama, Hiroyuki

PY - 2011/12/1

Y1 - 2011/12/1

N2 - We have constructed a planer undulator that is Halbach type composed of permanent magnet blocks. The period length of the undulator and the number of periods are 100 mm and 25, respectively. The vibrating wire method is studied to measure the periodic magnetic field of the undulator. A thin copper-beryllium wire is placed on the beam axis in the undulator. An AC current flow is applied in the wire, then by measuring amplitudes and phases of standing waves excited on the wire, we can reconstruct the magnetic field distribution along the wire numerically. In this paper, we discuss relations between reproducibility of the undulator field and the mode harmonics number incorporated into the reconstruction of undulator field.

AB - We have constructed a planer undulator that is Halbach type composed of permanent magnet blocks. The period length of the undulator and the number of periods are 100 mm and 25, respectively. The vibrating wire method is studied to measure the periodic magnetic field of the undulator. A thin copper-beryllium wire is placed on the beam axis in the undulator. An AC current flow is applied in the wire, then by measuring amplitudes and phases of standing waves excited on the wire, we can reconstruct the magnetic field distribution along the wire numerically. In this paper, we discuss relations between reproducibility of the undulator field and the mode harmonics number incorporated into the reconstruction of undulator field.

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BT - FEL 2011 - 33rd International Free Electron Laser Conference

T2 - 33rd International Free Electron Laser Conference, FEL 2011

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