| Title |
Recent Trends in Beam Size Measurements using the Spatial Coherence of Visible Synchrotron Radiation |
| Authors |
- T.M. Mitsuhashi
KEK, Ibaraki, Japan
|
| Abstract |
The optical method of measuring the transverse beam profile and size using visible synchrotron radiation (SR) began with simple imaging systems. The resolution was limited by both the diffraction and the wavefront error making it difficult to resolve beam sizes less than 50 μm. Instead of imaging, a method for measuring the beam profile and size using the spatial coherence was introduced. The method is based on Van Cittert-Zernike’s theorem, and can resolve 4-5 μm beam sizes with an error of only 0.5 μm. In this presentation, the principle of the measurement, the SR interferometer design, and some resent measurement results are reviewed. The incoherent field depth effect for the horizontal beam size measurement is also described with some results. Design study calculations for the SR interferometer at the LHC will be presented.
|
| Paper |
download THYC2.PDF [0.679 MB / 6 pages] |
| Slides |
download THYC2_TALK.PDF [2.629 MB] |
| Export |
download ※ BibTeX
※ LaTeX
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※ RIS
※ EndNote |
| Conference |
IPAC2015, Richmond, VA, USA |
| Series |
International Particle Accelerator Conference (6th) |
| Proceedings |
Link to full IPAC2015 Proccedings |
| Session |
Invited Orals (MC6) |
| Date |
07-May-15 11:00–12:30 |
| Main Classification |
6: Beam Instrumentation, Controls, Feedback, and Operational Aspects |
| Sub Classification |
T03 - Beam Diagnostics and Instrumentation |
| Keywords |
synchrotron, optics, radiation, photon, operation |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-168-7 |
| Published |
June 2015 |
| Copyright |
|
