Author: Wu, S.S.Q.
Paper Title Page
TUPO023 Narrow Spectral Bandwidth Optimization of Compton Scattering Sources 1488
 
  • F. Albert, S.G. Anderson, S.M. Betts, R.R. Cross, G.A. Deis, C.A. Ebbers, D.J. Gibson, F.V. Hartemann, T.L. Houck, R.A. Marsh, M. J. Messerly, C. Siders, S.S.Q. Wu
    LLNL, Livermore, California, USA
  
  We will be pre­sent­ing the the­o­ret­i­cal and nu­mer­i­cal de­sign and op­ti­miza­tion of Mono-En­er­get­ic Gam­ma-Ray (MEGa-Ray) Comp­ton scat­ter­ing sources. A new pre­ci­sion source with up to 2.5 MeV pho­ton en­er­gies, en­abled by state of the art laser and x-band linac tech­nolo­gies, is cur­rent­ly being built at LLNL. Var­i­ous as­pects of the the­o­ret­i­cal de­sign, in­clud­ing dose and bright­ness op­ti­miza­tion, will be pre­sent­ed. We will re­view the po­ten­tial sources of spec­tral broad­en­ing, in par­tic­u­lar due to the elec­tron beam prop­er­ties. While it is also known that non­lin­ear ef­fects occur in such light sources when the laser nor­mal­ized po­ten­tial is close to unity, we show that these can ap­pear at lower val­ues of the po­ten­tial. A three di­men­sion­al an­a­lyt­i­cal model and nu­mer­i­cal bench­marks have been de­vel­oped to model the source char­ac­ter­is­tics based on given laser and elec­tron beam dis­tri­bu­tions, in­clud­ing non­lin­ear spec­tra. Since MEGa-ray sources are being de­vel­oped for pre­ci­sion ap­pli­ca­tions such as nu­cle­ar res­o­nance flu­o­res­cence, as­sess­ing spec­tral broad­en­ing mech­a­nisms is es­sen­tial.
This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. 		 
 
TUPO024 Precision X-band Linac Technologies for Nuclear Photonics Gamma-ray Sources 1491
 
  • F.V. Hartemann, F. Albert, S.G. Anderson, C.P.J. Barty, A.J. Bayramian, R.R. Cross, G.A. Deis, C.A. Ebbers, D.J. Gibson, T.L. Houck, R.A. Marsh, M. J. Messerly, S.S.Q. Wu
    LLNL, Livermore, California, USA
  • C. Adolphsen, A.E. Candel, T.S. Chu, M.V. Fazio, E.N. Jongewaard, Z. Li, C. Limborg-Deprey, T.O. Raubenheimer, S.G. Tantawi, A.E. Vlieks, F. Wang, J.W. Wang, F. Zhou
    SLAC, Menlo Park, California, USA
  • D. Cutoiu
    Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania
  • D. Ighigeanu, M. Toma
    INFLPR, Bucharest - Magurele, Romania
  • V.A. Semenov
    UCB, Berkeley, California, USA
  
  Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
Nu­cle­ar pho­ton­ics is an emerg­ing field of re­search re­quir­ing new tools, in­clud­ing high spec­tral bright­ness, tun­able gam­ma-ray sources; high pho­ton en­er­gy, ul­tra­high-res­o­lu­tion crys­tal spec­trom­e­ters; and novel de­tec­tors. This pre­sen­ta­tion fo­cus­es on the pre­ci­sion linac tech­nol­o­gy re­quired for Comp­ton scat­ter­ing gam­ma-ray light sources, and on the op­ti­miza­tion of the laser and elec­tron beam pulse for­mat to achieve un­prece­dent­ed spec­tral bright­ness. With­in this con­text, high-gra­di­ent X-band tech­nol­o­gy will be shown to offer op­ti­mal per­for­mance in a com­pact pack­age, when used in con­junc­tion with the ap­pro­pri­ate pulse for­mat, and pho­to­cath­ode il­lu­mi­na­tion and in­ter­ac­tion laser tech­nolo­gies.