ANGULAR MOMENTUM OF THE RADIATION FROM RELATIVISTIC POSITRONS AT PLANAR CHANNELING IN SI CRYSTAL
The calculation of the both spin and orbital angular momenta of the radiation from 350 MeV positrons at (100) planar channeling in the ultra-thin silicon crystal is carried out by means of computer simulation. The calculations are performed as a proposal for an experimental verication at the DAFNE LINAC (INFN-LNF, Italy; energy up to 500 MeV). The possibility of the usage of the channeling radiation from relativistic positrons as the source of 4-5 MeV twisted photons is discussed.
Keywords: channeling radiation, angular momentum of electromagnetic eld, twisted photon
References:
[1] Sadowsky A. I. 1897 Zh. Russk. Fiz.- Khim. Obshch., Chast' Fizich. Otd. 1 29(2) 82 [in Russian]; Sadowsky A. 1899 Acta et Commentations Imp. Universitatis Jurievensis 7 1-3.
[2] Poynting J. H. 1909 Proc. R. Soc. Lond. A 82 560-567 [doi: 10.1098/rspa.1909.0060].
[3] Beth B. A. 1935 Phys. Rev. 48 471; 1936 Phys. Rev. 50 115.
[4] Holborn A. H. S. 1936 Nature 137 31.
[5] Ivanenko D. D., Sokolov A. A. 1949 Classical Field Theory (Gostehizdat) 432.
[6] Teitelboim C., Villarroel D., van Weert Ch. G. 1980 Nuovo Cim. 3 1-64.
[7] Bordovitsyn V. A., Konstantinova O. A., Nemchenko E. A. 2012 Russian Physics Journal 55(1) 40-46.
[8] Mair A., Zeilinger A. et al 2001 Nature 412 313; Fickler R., Zeilinger A. et al 2012 Science 338 640.
[9] Tamburini F. et al 2012 New Journal of Physics 14 033001.
[10] Wang J., Dolinar S., Tur M. et al 2012 Nature Photonics 6 488 [doi:10.1038/nphoton.2012.138].
[11] Bozinovic N., Yue Y., Willner A.E. et al 2013 Science 340 1545; [doi:10.1126/science.1237861].
[12] Yin Shi, Baifei Shen, Lingang Zhang et al 2014 Nature 112 235001.
[13] Sasaki Sh. and McNulty I. 2008 Phys. Rev. Lett. 100 124801.
[14] Bahrdt J., Holldack K., Kuske P. et al 2013 Phys. Rev. Lett. 111 034801.
[15] Bogdanov O. V., Korotchenko K. B., Pivovarov Yu. L. 2008 J. Phys. B: At. Mol. Opt. Phys. 41 055004.
[16] Bogdanov O. V., Fiks E. I., Korotchenko K. B., Pivovarov Yu. L., Tukhfatullin T. A. 2010 J. Phys.: Conf. Ser. 236 1, 012029.
[17] Ryabov V. A. 1994 Nucl. Instrum. Meth. B90 183.
[18] Baier V. N., Katkov V. M., Strakhovenko V. M. 1998 Electromagnetic Processes at High Energies in Oriented Single Crystals (World Scientic Publishing Co) 400.
[19] Abdrashitov S. V., Bogdanov O. V., Pivovarov Y. L., Tukhfatullin T. A. 2014 Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques 8(3) 494.
[20] Takabayashi Y., Pivovarov Y. L. , Tukhfatullin T. A. 2014 Physics Letters A 378 1520-1525.
Issue: 12, 2014
Series of issue: Issue 12
Pages: 9 — 12
Downloads: 803