Determination of longitudinal bunch shape by means of coherent Smith-Purcell radiation

被引：51

作者：

Doucas, G ^{[1
]}

Kimmitt, MF

Doria, A

Gallerano, GP

Giovenale, E

Messina, G

Andrews, HL

Brownell, JH

机构：

[1] Univ Oxford, Sub Dept Particle Phys, Oxford OX1 3RH, England

[2] Univ Essex, Phys Ctr, Colchester CO4 3SQ, Essex, England

[3] ENEA, Div Fis Appl, I-00044 Frascati, Italy

[4] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA

来源：

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS | 2002年 / 5卷 / 07期

关键词：

D O I：

10.1103/PhysRevSTAB.5.072802

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Coherent enhancement of the Smith-Purcell radiation produced from the interaction of a 1.8 MeV electron beam with a grating has been observed. The emitted radiation has been measured at angles in the 40degrees to 120degrees range, which correspond to wavelengths from 0.65 to 4 mm, approximately. The radiated power was 320 mW at 90degrees. Its angular distribution agrees well with the description of the process in terms of induced surface currents and has been used to infer the longitudinal profile of the electron bunch. It is concluded that the bunch has an approximately triangular profile, with 85% of the bunch particles contained within 14 ps. The possibilities of the technique as a bunch-shape diagnostic tool are also discussed.

引用

页码：14 / 21

页数：8

共 14 条

[1] Spontaneous Smith-Purcell radiation described through induced surface currents [J].

Brownell, JH ;

Walsh, J ;

Doucas, G .

PHYSICAL REVIEW E, 1998, 57 (01) :1075-1080

[2] The angular distribution of the power produced by Smith-Purcell radiation [J].

Brownell, JH ;

Doucas, G ;

Kimmitt, MF ;

Mulvey, JH ;

Omori, M ;

Walsh, JE .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (17) :2478-2481

[3] A new type of high-resolution position sensor for ultra-relativistic beams [J].

Doucas, G ;

Kimmitt, MF ;

Brownell, JH ;

Trotz, SR ;

Walsh, JE .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 474 (01) :10-18

[4] Electron bunch shape measurement using coherent diffraction radiation [J].

Feng, B ;

Oyamada, M ;

Hinode, F ;

Sato, S ;

Kondo, Y ;

Shibata, Y ;

Ikezawa, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 475 (1-3) :492-497

[5]

Fiorito RB, 1999, AIP CONF PROC, V472, P725, DOI 10.1063/1.58927

[6] Compact free electron lasers: From Cerenkov to waveguide free electron lasers [J].

Gallerano, GP ;

Doria, A ;

Giovenale, E ;

Renieri, A .

INFRARED PHYSICS & TECHNOLOGY, 1999, 40 (03) :161-174

[7] Measurement of subpicosecond electron pulses [J].

Lihn, HC ;

Kung, P ;

Settakorn, C ;

Wiedemann, H ;

Bocek, D .

PHYSICAL REVIEW E, 1996, 53 (06) :6413-6418

[8] First measurements of subpicosecond electron beam structure by autocorrelation of coherent diffraction radiation [J].

Lumpkin, AH ;

Sereno, NS ;

Rule, DW .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 475 (1-3) :470-475

[9] COHERENT TRANSITION RADIATION DIAGNOSIS OF ELECTRON-BEAM MICROBUNCHING [J].

ROSENZWEIG, J ;

TRAVISH, G ;

TREMAINE, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 365 (01) :255-259

[10] DIAGNOSTICS OF AN ELECTRON-BEAM OF A LINEAR-ACCELERATOR USING COHERENT TRANSITION RADIATION [J].

SHIBATA, Y ;

TAKAHASHI, T ;

KANAI, T ;

ISHI, K ;

IKEZAWA, M ;

OHKUMA, J ;

OKUDA, S ;

OKADA, T .

PHYSICAL REVIEW E, 1994, 50 (02) :1479-1484

← 1 2 →