Author: Ricaud, J.P.
Paper Title Page
TUP087 The Status of LUNEX5 Project 574
 
  • M.-E. Couprie, C. Benabderrahmane, P. Berteaud, C. Bourassin-Bouchet, F. Bouvet, F. Briquez, L. Cassinari, L. Chapuis, J. Daillant, M. Diop, M.E. El Ajjouri, C. Herbeaux, N. Hubert, M. Labat, P. Lebasque, A. Lestrade, A. Loulergue, P. Marchand, O. Marcouillé, J.L. Marlats, C. Miron, P. Morin, A. Nadji, F. Polack, F. Ribeiro, J.P. Ricaud, P. Roy, K. Tavakoli, M. Valléau, D. Zerbib
    SOLEIL, Gif-sur-Yvette, France
  • S. Bielawski
    PhLAM/CERCLA, Villeneuve d'Ascq Cedex, France
  • B. Carré, D. Garzella
    CEA/DSM/DRECAM/SPAM, Gif-sur-Yvette, France
  • X. Davoine
    CEA/DAM/DIF, Arpajon, France
  • N. Delerue
    LAL, Orsay, France
  • G. Devanz, A. Mosnier
    CEA/DSM/IRFU, France
  • A. Dubois, J. Lüning
    CCPMR, Paris, France
  • C. Evain, E. Roussel, C. Szwaj
    PhLAM/CERLA, Villeneuve d'Ascq, France
  • G. Lambert, R. Lehé, V. Malka, A. Rousse, C. Thaury
    LOA, Palaiseau, France
  • C. Madec
    CEA/IRFU, Gif-sur-Yvette, France
  
  LUNEX5 (free elec­tron Laser Using a New ac­cel­er­a­tor for the Ex­ploita­tion of X-ray ra­di­a­tion of 5th gen­er­a­tion) aims at in­ves­ti­gat­ing the pro­duc­tion of short, in­tense, co­her­ent Free Elec­tron Laser (FEL) pulses in the 40-4 nm spec­tral range. It com­prises a 400 MeV su­per­con­duct­ing Lin­ear Ac­cel­er­a­tor for high rep­e­ti­tion rate op­er­a­tion (10 kHz), multi-FEL lines and adapted for stud­ies of ad­vanced FEL schemes, a 0.4 - 1 GeV Laser Wake Field Ac­cel­er­a­tor (LWFA) for its qual­i­fi­ca­tion by a FEL ap­pli­ca­tion, a sin­gle un­du­la­tor line en­abling seed­ing with High order Har­monic in Gas and echo con­fig­u­ra­tions and pilot user ap­pli­ca­tions. Con­cern­ing the su­per­con­duct­ing linac, the elec­tron beam dy­nam­ics has been mod­i­fied from a scheme using a third har­monic lin­earizer and a com­pres­sion chi­cane to dog-leg cou­pled to sex­tupoles. Be­sides, the choice of the gun is under re­vi­sion for ful­fill­ing to 10 kHz rep­e­ti­tion rate. Fol­low­ing trans­port the­o­ret­i­cal stud­ies of lon­gi­tu­di­nal and trans­verse ma­nip­u­la­tion of a LWFA elec­tron beam en­abling to pro­vide the­o­ret­i­cal am­pli­fi­ca­tion, a test ex­per­i­ment is under prepa­ra­tion in col­lab­o­ra­tion with the Lab­o­ra­toire d’Op­tique Ap­pliquée to­wards an ex­per­i­men­tal demon­stra­tion.  
 
THP078
 A High Repetition Rate, Single-Shot Recording Scheme for Short Pulses  
 
  • E. Roussel, S. Bielawski, C. Evain, M. Le Parquier, C. Szwaj
    PhLAM/CERCLA, Villeneuve d'Ascq Cedex, France
  • J.B. Brubach, L. Cassinari, M.-E. Couprie, M. Labat, L. Manceron, J.P. Ricaud, P. Roy, M.-A. Tordeux
    SOLEIL, Gif-sur-Yvette, France
  
  We demon­strate high rep­e­ti­tion rate (up to 88 MHz) sin­gle shot record­ings of pulses shapes, using a novel opto-elec­tronic strat­egy. The tech­nique is based on the clas­si­cal spec­tral en­cod­ing tech­nique, but at a much higher rep­e­ti­tion rate than with the state-of-art strat­egy (which is lim­ited by cam­era speed). In the pre­sent demon­stra­tion, the sig­nals are co­her­ent THz pulses emit­ted at SOLEIL, and the res­o­lu­tion is in the ps range. How­ever the tech­nique is not spe­cific to THz pulses and can be po­ten­tially adapted to other wave­lengths and sit­u­a­tions, pro­vided it is pos­si­ble to im­print the ul­tra­fast sig­nal on chirped laser pulses (through elec­tro-op­tic sam­pling, fre­quency mix­ing, tran­sient re­flec­tiv­ity, etc.).