K. Jordan

Publications (2)0 Total impact

• Source

  Available from: A.G. Shkvarunets

  Article: Multi-component measurements of the Jefferson Lab energy recovery linac electron beam using optical transition and diffraction radiation

  M. A. Holloway, R. B. Fiorito, A. G. Shkvarunets, P.G. O'Shea, S. V. Benson, D. Douglas, P. Evtushenko, K. Jordan
  [show abstract] [hide abstract]
  ABSTRACT: High brightness electron accelerators, such as energy recovery linacs (ERL), often have complex particle distributions that can create difficulties in beam transport as well as matching to devices such as wigglers used to generate radiation from the beam. Optical transition radiation (OTR), OTR interferometry (OTRI) and optical diffraction-transition radiation interferometry (ODTRI) have proven to be effective tools for diagnosing both the spatial and angular distributions of charged particle beams. OTRI and ODTRI have been used to measure rms divergences and optical transverse phase space mapping has been demonstrated using OTRI. In this work we present the results of diagnostic experiments using OTR and ODR conducted at the Jefferson Laboratory 115 MeV ERL which show the presence of two separate components within the spatial and angular distributions of the beam. By assuming a correlation between the spatial and angular features we estimate an rms emittance value for each of the two components. Comment: 25 pages, 10 figures; accepted for publication in PRSTAB; minor formatting errors corrected
  06/2008;
• Conference Proceeding: RMS emittance measurements using optical transition radiation interferometry at the Jefferson Lab FEL

  M.A. Holloway, R.B. Fiorito, P.G. O'Shea, A.G. Shkvarunets, S.V. Benson, W. Brock, J.L. Coleman, D. Douglas, R. Evans, P. Evtushenko, K. Jordan, D. Sexton
  [show abstract] [hide abstract]
  ABSTRACT: Optical transition radiation interferometry (OTRI) has proven to be effective tool for measuring rms beam divergence. We present rms emittance measurement results of the 115 MeV energy recovery linac at the Thomas Jefferson National Laboratory's Free Electron Laser using OTRI. OTR data from both near field beam images and far field angular distribution images give evidence of two spatial and angular distributions within the beam. Using the unique features of OTRI we segregate the two distributions of the beam and estimate separate rms emittance values for each component.
  Particle Accelerator Conference, 2007. PAC. IEEE; 07/2007