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100 _a20170606a2015 k y0engy50 ba
101 0 _aeng
102 _aNL
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aFirst studies of 500-nm Cherenkov radiation from 255-MeV electrons in a diamond crystal
_fY. Takabayashi, E. I. Fiks, Yu. L. Pivovarov
203 _aText
_celectronic
300 _aTitle screen
320 _aReferences: p. 1035 (9 tit.)
330 _aThe first experiment on Cherenkov light from 255-MeV electrons passing through a 50-?m-thick diamondcrystal in a special geometry allowing extraction of 500-nm Cherenkov light at a right angle with respectto the electron beam direction has been performed at the injector linac of SAGA Light Source acceleratorfacility. The dependence of 500-nm Cherenkov light intensity (separated by a band-pass filter) on thecrystal rotation angle was measured by a CCD detector. The experimentally obtained rocking curvewith an intense maximum is theoretically explained as the projector effect of Cherenkov light deflectedby the exit surface of the crystal. The width of the rocking curve is explained by the convolution ofthe standard Tamm–Frank angular distribution of Cherenkov radiation with chromatic aberration, themultiple scattering of electrons in a crystal, and initial electron beam angular divergence. In addition, itis found that the Cherenkov light intensity did not change under the (220) planar channeling condition,which is consistent with a recent theory.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPhysics Letters A
463 _tVol. 379, iss. 14-15
_v[P. 1032-1035]
_d2015
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aчеренковские спектрометры
610 1 _aчеренковское излучение
610 1 _aкристаллы
610 1 _aрефракция
700 1 _aTakabayashi
_bY.
701 1 _aFiks
_bE. I.
_cphysicist
_cengineer-researcher of Tomsk Polytechnic University, candidate of physico-mathematical Sciences
_f1988-
_gElena Ivanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33634
701 1 _aPivovarov
_bYu. L.
_cphysicist
_cprofessor of Tomsk Polytechnic University
_f1953-
_gYuriy Leonidovich
_2stltpush
_3(RuTPU)RU\TPU\pers\31522
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра экспериментальной физики (ЭФ)
_h7596
_2stltpush
_3(RuTPU)RU\TPU\col\21255
801 2 _aRU
_b63413507
_c20170606
_gRCR
856 4 _uhttps://doi.org/10.1016/j.physleta.2015.01.036
942 _cCF