Research on spatial coherence of undulator source in Shanghai synchrotron radiation facility | Zendy

Hua Wang | Zendy; Shuai Yan | Zendy; Fen Yan | Zendy; Sheng Jiang | Zendy; Mao Cheng-Wen | Zendy; Dongxu Liang | Zendy; Ke Yang | Zendy; Aiguo Li | Zendy; Xiaohan Yu | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Research on spatial coherence of undulator source in Shanghai synchrotron radiation facility

Author(s) -

Hua Wang,

Shuai Yan,

Fen Yan,

Sheng Jiang,

Mao Cheng-Wen,

Dongxu Liang,

Ke Yang,

Aiguo Li,

Xiaohan Yu

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.144102

Subject(s) - undulator , beamline , optics , physics , synchrotron radiation , monochromator , coherence (philosophical gambling strategy) , coherence length , spatial coherence , synchrotron , radiation , synchrotron radiation source , beam (structure) , laser , wavelength , superconductivity , quantum mechanics

Firstly, based on the Gaussian-schell model source theory and the propagation of cross-spectral density function in free space, the spatial coherence of undulator source (BL15U) in Shanghai Synchrotron Radiation Facility is studied. Secondly, the influences of pre-focusing mirror and the monochromator on the beam spatial coherence are discussed. Finally, the spatial coherent length at mono slit S2 is measured. The spatial coherent length at S2 theoretically is 66.5 μm, but experimentally is 27 μm. This difference is due to the high frequency vibration of pre-focusing mirror or monochromato. Nevertheless, high coherent hard X ray beams can be obtained at the location of experimental sample and many coherent experiments can be fulfilled on this beamline.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research