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100 _a20170710a2017 k y0engy50 ba
101 0 _aeng
102 _aNL
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aMonochromatic coherent grating transition radiation in sub-THz frequency range
_fG. A. Naumenko [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 156 (10 tit.)]
330 _aGrating transition radiation (GTR) emitted by electrons interacting with a diffraction grating was experimentally confirmed. This radiation appears when a charge intersects the grating at some inclination angle θ between the main grating plane and the charge velocity vector. If the condition θ=0 is fulfilled the GTR tends to the conventional Smith-Purcell radiation. In this report we present the experimental investigation of spectral and orientation dependencies of a coherent GTR in sub-THz wavelength region emitted by 8 MeV electron at KEK LUCX facility. The coherent GTR spectral line shapes up to 5th diffraction order were measured for different inclination angles (θ = 0-25 deg) with the grating period 4 mm. A pair of room-temperature Schottky barrier diode (SBD) detectors with sensitivity bands 60-90 GHz and 320-460 GHz were used. The estimation of radiation frequency dependence on the inclination angle using the dispersion relation justifies the usage of different narrow-band SBD detectors to investigate different diffraction orders of coherent GTR spectral lines. It was shown that the bandwidth of the GTR spectral lines decreases with the diffraction order. The comparison with coherent transition radiation in the same frequency range showed that the brightness of both radiation mechanisms are comparable.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
_d1984-
463 _tVol. 402
_v[P. 153–156]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aкогерентное переходное излучение
610 1 _aтерагерцовое излучение
610 1 _aTHz radiation
610 1 _acoherent transition radiation
701 1 _aNaumenko
_bG. A.
_cphysicist
_csenior research fellow, Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1947-
_gGennadiy Andreevich
_2stltpush
_3(RuTPU)RU\TPU\pers\31524
701 1 _aAryshev
_bA. S.
_gAleksandr Sergeevich
701 1 _aPotylitsyn
_bA. P.
_cRussian physicist
_cProfessor of the TPU
_f1945-
_gAlexander Petrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\26306
701 1 _aShevelev
_bM. V.
_gMikhail Viktorovich
701 1 _aSukhikh
_bL. G.
_cphysicist
_cResearcher of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1984-
_gLeonid Grigorievich
_2stltpush
_3(RuTPU)RU\TPU\pers\31554
701 1 _aTerunuma
_bN.
_gNobihiro
701 1 _aUrakawa
_bJ.
_gJunji
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра прикладной физики (№ 12) (ПФ)
_bИнновационная международная научно-образовательная лаборатория "Фотон" (ИМНОЛ "Фотон")
_h4349
_2stltpush
_3(RuTPU)RU\TPU\col\20731
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра прикладной физики (№ 12) (ПФ)
_h46
_2stltpush
_3(RuTPU)RU\TPU\col\18729
801 2 _aRU
_b63413507
_c20170710
_gRCR
856 4 _uhttps://doi.org/10.1016/j.nimb.2017.02.057
942 _cCF