Channeling and radiation of 855 MeV electrons and positrons in straight and bent tungsten (110) crystals

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:424

Article

Shen, H.^1,2,3  Zhao, Q.⁴  Zhang, F. S.^1,2,5  Sushko, Gennady B.⁶  Korol, Andrei V.⁶  Solov'yov, Andrey V.⁶ 

[1] Beijing Normal Univ, Coll Nucl Sci & Technol, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China

[2] Beijing Radiat Ctr, Beijing 100875, Peoples R China

[3] China Acad Engn Phys, Ctr Fus Energy Sci & Technol, Beijing 100088, Peoples R China

[4] North China Elect Power Univ, Sch Nucl Sci & Engn, Beijing 102206, Peoples R China

[5] Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Gansu, Peoples R China

[6] MBN Res Ctr, Altenhoferallee 3, D-60438 Frankfurt, Germany

关键词: Channeling;    Tungsten crystal;    Bent crystal;    Rechanneling;    Dechanneling length;    Radiation spectra;   

DOI  :  10.1016/j.nimb.2018.03.025

来源: Elsevier

【 摘 要 】

Planar channeling of 855MeV electrons and positrons in straight and bent tungsten (110) crystal is simulated by means of the MBNplorer software package. The results of simulations for a broad range of bending radii are analyzed in terms of the channel acceptance, dechanneling length, and spectral distribution of the emitted radiation. Comparison of the results with predictions of other theories as well as with the data for (110) oriented diamond, silicon and germanium crystals is carried out.

【 授权许可】

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