Test-accelerators as coherent terahertz source program (t-ACTS) at Tohoku University

Hiroyuki Hama; Masayuki Kawai; Shigeru Kashiwagi; Fujio Hinode; Fusashi Miyahara; Ken Ichi Nanbu; Toshiya Muto; Yuu Tanaka; Xiangkun Li; Nuan Ya Huang

doi:10.1016/j.egypro.2011.09.042

Test-accelerators as coherent terahertz source program (t-ACTS) at Tohoku University

Hiroyuki Hama, Masayuki Kawai, Shigeru Kashiwagi, Fujio Hinode, Fusashi Miyahara, Ken Ichi Nanbu, Toshiya Muto, Yuu Tanaka, Xiangkun Li, Nuan Ya Huang

Research Center for Electron Photon Science (ELPH)

Research output: Contribution to journal › Conference article › peer-review

11 Citations (Scopus)

Abstract

The beam from thermionic RF gun is quite suitable for the bunch compression by means of velocity bunching. Since the thermionic gun is very stable in general, we anticipate very short electron pulses of the bunch length around 50 fs can be provided satisfactorily. The t-ACTS program has been developed toward updating terahertz science and technology in which intense coherent synchrotron radiation (CSR) from very short electron bunches will be employed. Careful numerical simulation showed possibility of the bunch length of less than 100 fs with a bunch charge of 20 pC, which will provide sufficiently large form factor for production of CSR in the THz wavelength region. The train of short bunches will be stored in an accumulator ring. The peak brilliance of THz radiation emitted from one bunch is expected to be 5×10⁶ photons/mrad²/0.1%bandwidth for each bending magnet of the ring.

Original language	English
Pages (from-to)	391-397
Number of pages	7
Journal	Energy Procedia
Volume	9
DOIs	https://doi.org/10.1016/j.egypro.2011.09.042
Publication status	Published - 2011
Event	9th Eco-Energy and Materials Science and Engineering Symposium, EMSES 2011 - Chiang Rai, Thailand Duration: 2011 May 25 → 2011 May 27

Keywords

Coherent synchrotron radiation
Isochronous ring
Terahertz
Thermionic rf gun
Undulator
Velocity bunching

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10.1016/j.egypro.2011.09.042

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@article{82c2895e4cfa44b3a8eed9e8f38bd470,

title = "Test-accelerators as coherent terahertz source program (t-ACTS) at Tohoku University",

abstract = "The beam from thermionic RF gun is quite suitable for the bunch compression by means of velocity bunching. Since the thermionic gun is very stable in general, we anticipate very short electron pulses of the bunch length around 50 fs can be provided satisfactorily. The t-ACTS program has been developed toward updating terahertz science and technology in which intense coherent synchrotron radiation (CSR) from very short electron bunches will be employed. Careful numerical simulation showed possibility of the bunch length of less than 100 fs with a bunch charge of 20 pC, which will provide sufficiently large form factor for production of CSR in the THz wavelength region. The train of short bunches will be stored in an accumulator ring. The peak brilliance of THz radiation emitted from one bunch is expected to be 5×106 photons/mrad2/0.1%bandwidth for each bending magnet of the ring.",

keywords = "Coherent synchrotron radiation, Isochronous ring, Terahertz, Thermionic rf gun, Undulator, Velocity bunching",

author = "Hiroyuki Hama and Masayuki Kawai and Shigeru Kashiwagi and Fujio Hinode and Fusashi Miyahara and Nanbu, {Ken Ichi} and Toshiya Muto and Yuu Tanaka and Xiangkun Li and Huang, {Nuan Ya}",

note = "Funding Information: The author thanks Drs. L. Gianessi of ENEA and M-E. Couprie of SOLEIL for valuable discussion concerning radiation sources. Dr. Ferrario of ENEA is appreciated for suggestions on velocity bunching. This work is supported by the Japanese Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (S), Contract #20226003.; 9th Eco-Energy and Materials Science and Engineering Symposium, EMSES 2011 ; Conference date: 25-05-2011 Through 27-05-2011",

year = "2011",

doi = "10.1016/j.egypro.2011.09.042",

language = "English",

volume = "9",

pages = "391--397",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Test-accelerators as coherent terahertz source program (t-ACTS) at Tohoku University

AU - Hama, Hiroyuki

AU - Kawai, Masayuki

AU - Kashiwagi, Shigeru

AU - Hinode, Fujio

AU - Miyahara, Fusashi

AU - Nanbu, Ken Ichi

AU - Muto, Toshiya

AU - Tanaka, Yuu

AU - Li, Xiangkun

AU - Huang, Nuan Ya

N1 - Funding Information: The author thanks Drs. L. Gianessi of ENEA and M-E. Couprie of SOLEIL for valuable discussion concerning radiation sources. Dr. Ferrario of ENEA is appreciated for suggestions on velocity bunching. This work is supported by the Japanese Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (S), Contract #20226003.

PY - 2011

Y1 - 2011

N2 - The beam from thermionic RF gun is quite suitable for the bunch compression by means of velocity bunching. Since the thermionic gun is very stable in general, we anticipate very short electron pulses of the bunch length around 50 fs can be provided satisfactorily. The t-ACTS program has been developed toward updating terahertz science and technology in which intense coherent synchrotron radiation (CSR) from very short electron bunches will be employed. Careful numerical simulation showed possibility of the bunch length of less than 100 fs with a bunch charge of 20 pC, which will provide sufficiently large form factor for production of CSR in the THz wavelength region. The train of short bunches will be stored in an accumulator ring. The peak brilliance of THz radiation emitted from one bunch is expected to be 5×106 photons/mrad2/0.1%bandwidth for each bending magnet of the ring.

AB - The beam from thermionic RF gun is quite suitable for the bunch compression by means of velocity bunching. Since the thermionic gun is very stable in general, we anticipate very short electron pulses of the bunch length around 50 fs can be provided satisfactorily. The t-ACTS program has been developed toward updating terahertz science and technology in which intense coherent synchrotron radiation (CSR) from very short electron bunches will be employed. Careful numerical simulation showed possibility of the bunch length of less than 100 fs with a bunch charge of 20 pC, which will provide sufficiently large form factor for production of CSR in the THz wavelength region. The train of short bunches will be stored in an accumulator ring. The peak brilliance of THz radiation emitted from one bunch is expected to be 5×106 photons/mrad2/0.1%bandwidth for each bending magnet of the ring.

KW - Coherent synchrotron radiation

KW - Isochronous ring

KW - Terahertz

KW - Thermionic rf gun

KW - Undulator

KW - Velocity bunching

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AN - SCOPUS:84906702570

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VL - 9

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EP - 397

JO - Energy Procedia

JF - Energy Procedia

T2 - 9th Eco-Energy and Materials Science and Engineering Symposium, EMSES 2011

Y2 - 25 May 2011 through 27 May 2011

ER -

Test-accelerators as coherent terahertz source program (t-ACTS) at Tohoku University

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Keywords

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