08 Applications of Accelerators
U05 Applications, Other
Paper Title Page
WEPRO113 Status of the Radiation Source ELBE Upgrade 2233
 
  • P. Michel, T.E. Cowan, U. Lehnert, U. Schramm
    HZDR, Dresden, Germany
 
  ELBE is based on a 40 MeV superconducting Electron Linac able to operate in CW mode and provides manifold secondary user beams. The suite of secondary beams include: two free electron lasers operating in the IR/THz regime; a fast neutron beam; a Bremsstrahlung gamma-ray beam; a low-energy positron beam; and patented single-electron test beams. The primary electron beam is also used for radiobiology research, or in interaction with ultra-intense PW-class lasers. Through 2014 ELBE will be upgraded to a Centre for High Power Radiation Sources. The ELBE beam current was increased to 1.6 mA by using novel solid state RF amplifiers. The concept also contains additional broad and narrow band coherent THz sources and the development of a 500 TW TiSa Laser and even a 1.5 PW diode pumped laser system. Laser plasma electron acceleration and proton acceleration experiments for medical applications are planned. Additionally, coupled electron laser beam experiments like Thomson scattering or injection of ELBE electron into the laser plasma will be done.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO113  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPRO114 SALOME: An Accelerator for the Practical Course in Accelerator Physics 2235
 
  • V. Miltchev, D. Riebesehl, J. Roßbach, M. Trunk
    Uni HH, Hamburg, Germany
  • O. Stein
    CERN, Geneva, Switzerland
 
  SALOME (Simple Accelerator for Learning Optics and the Manipulation of Electrons) is a short low energy linear electron accelerator built by the University of Hamburg. The goal of this project is to give the students the possibility to obtain hands-on experience with the basics of accelerator physics. In this contribution the layout of the device will be presented. The most important components of the accelerator will be discussed and an overview of the planned demonstration experiments will be given.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO114  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPRO115 The Star Project 2238
 
  • A. Bacci, D.T. Palmer, L. Serafini, V. Torri
    Istituto Nazionale di Fisica Nucleare, Milano, Italy
  • R.G. Agostino, G. Borgese, M. Ghedini, F. Martire, C. Pace
    UNICAL, Arcavacata di Rende, Italy
  • D. Alesini, M.P. Anania, M. Bellaveglia, F.G. Bisesto, G. Di Pirro, A. Esposito, M. Ferrario, A. Gallo, G. Gatti, A. Ghigo, B. Spataro, C. Vaccarezza, F. Villa
    INFN/LNF, Frascati (Roma), Italy
  • A. Cianchi
    Università di Roma II Tor Vergata, Roma, Italy
  • G. D'Auria, A. Fabris, M. Marazzi
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
  • T. Levato
    Czech Republic Academy of Sciences, Institute of Physics, Prague, Czech Republic
  • V. Petrillo
    Universita' degli Studi di Milano, Milano, Italy
  • E. Puppin
    Politecnico/Milano, Milano, Italy
  • P. Tomassini
    Università degli Studi di Milano, Milano, Italy
 
  We present on overview of the STAR project (Southern european Thomson source for Applied Research), in progress at the Univ. of Calabria (Italy) aimed at the construction of an advanced Thomson source of monochromatic tunable, ps-long, polarized X-ray beams, ranging from 20 to 140 keV. The project is pursued in collaboration among: Univ. della Calabria, CNISM, INFN and Sincrotrone Trieste. The X-rays will be devoted to experiments of matter science, cultural heritage, advanced radiological imaging with micro-tomography capabilities. One S-band RF Gun at 100 Hz will produce electron bunches boosted up to 60 MeV by a 3m long S-band TW cavity. A dogleg will bring the beam on a parallel line, shielding the X-ray line from the background radiation due to Linac dark current. The peculiarity of the machine is the ability to produce high quality electron beams, with low emittance and high stability, allowing to reach spot sizes around 15-20 microns, with a pointing jitter of the order of a few microns. The collision laser will be based on a Yb:Yag 100 Hz J-class high quality laser system, synchronized to an external photo-cathode laser and to the RF system to better than 1 ps time jitter.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO115  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPRO116 Direct High Power Laser Diagnostic Technique Based on Focused Electron Bunch 2242
 
  • R. Sato, A. Endo, K. Nonomura, K. Sakaue, M. Washio, Y. Yoshida
    Waseda University, Tokyo, Japan
 
  In laser produced plasma EUV source, high intensity pulse CO2 laser is essential for plasma generation. To achieve high conversion efficiency and stable EUV power, we desire to measure laser profile in collision point. However, focused laser profile has not been observed directory by existing techniques. We have been developing laser profiler based on laser Compton scattering. Laser profile can be measured by scanning focused electron beam while measuring Compton scattering signal. This method is suitable for a high intensity laser, but very small spot size of electron beam is required. To achieve small spot size, we use S-band photocathode rf gun and special design solenoid lens. The beam size was simulated by General particle tracer (GPT) and directory measured by Gafchromic film HD-810. We have succeeded in observing minimum beam size of about 20 μm rms. We are preparing beam scanning system, pulse CO2 laser and a detector for Compton signal. In this conference, we will report the results of focused electron beam measurement and future prospective.
Work supported by NEDO(New Energy and Industrial Technology Development Organization).
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO116  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPRO117 The Accumulator of the ESSnuSB for Neutrino Production 2245
 
  • E.H.M. Wildner, J. Jonnerby, J.-P. Koutchouk, M. Martini, H.O. Schönauer
    CERN, Geneva, Switzerland
  • E. Bouquerel, M. Dracos, N. Vassilopoulos
    IPHC, Strasbourg Cedex 2, France
  • T.J.C. Ekelöf, R.J.M.Y. Ruber
    Uppsala University, Uppsala, Sweden
  • M. Eshraqi, M. Lindroos, D.P. McGinnis
    ESS, Lund, Sweden
 
  The European Spallation Source (ESS) is a research centre based on the world’s most powerful neutron source currently under construction in Lund, Sweden, using 2.0 GeV, 2.86 ms long proton pulses at 14 Hz for the spallation facility (5MW on target). The possibility to pulse the linac at 28 Hz to deliver, in parallel with the spallation neutron production, a very intense, cost effective, high performance neutrino beam. The high current in the horns of the target system for the neutrino production requires proton pulses far shorter than the linac pulse. Therefore an accumulator ring is required after the linac to produce the shorter pulses. Charge exchange injection of an H beam from the linac would be used. The Linac would deliver 1.1 1015 protons per pulse. Due to space charge limits, several rings or one ring re-filled several times during the neutrino cycle are necessary. A cost effective design of an accumulator that can handle this large number of ions will be shown, taking into account the structure of the linac pulse and the requirements of the target system. Beam dynamics issues, the injection system, the extraction and the distribution on the targets are addressed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO117  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPRO118 THz Radiation Generation in Multimode Wakefield Structures 2248
 
  • S.P. Antipov, S.V. Baryshev, C.-J. Jing, A. Kanareykin, P. Schoessow
    Euclid TechLabs, LLC, Solon, Ohio, USA
  • M.G. Fedurin
    BNL, Upton, Long Island, New York, USA
  • W. Gai, A. Zholents
    ANL, Argonne, Illinois, USA
  • D. Wang
    TUB, Beijing, People's Republic of China
 
  Funding: DOE SBIR
A number of methods for producing sub-picosecond electron bunches have been demonstrated in recent years. A train of these bunches is capable of generating THz radiation via multiple mechanisms like transition, Cherenkov and undulator radiation. We propose to use a bunch train like this to selectively excite a high order mode in a dielectric wakefield structure. This allows us to use wakefield structures that are geometrically larger and easier to fabricate for beam-based THz generation. In this paper we present a THz source design based on this concept and experimental progress to date.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO118  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
FRYAA01
Locating Targets for Therapy Embedded in Soft, Deforming and Moving Tissues  
 
  • D.J. Hawkes
    University College London, Centre for Medical Image Computing, London, United Kingdom
 
  This talk describes how the latest imaging technologies coupled with advanced computer modelling methods can tell a therapist precisely where to aim radiation beams to destroy diseased tissue. A major challenge for treating many common cancers is the movement of the body due to breathing, motion of the gut and changes in the position of the patient. This presentation will describe techniques for compensating for these movements, and show how new technologies are being brought to bear on the treatment of range of different cancers.  
slides icon Slides FRYAA01 [12.142 MB]  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)