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THz Generation and Beam Tests for CLEAR and LEETCHI: Enhancing Spectrum and Testing THz Detection

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  1. Discussion THz@CLEAR

  2. THzGeneration • CTR using 0.5nC and bunchlength of 100fs : peak power of few uJ • CDR usingparabolictarget • Enhancedspectrumusingsub-picosecondbunch train structure • more monochromaticspectrum • Smith-Purcell • Reaching high-average power with LEETCHI • Using e-gun maybelimited to frequenciessmallerthan • 300W to kW in fundamental • Cherenkov in Meta-materials • Possiblyworking on LEETCHI and CLEAR

  3. Simulatingdifferent scenario • To bedone for CLEAR • Comparing TR, DR, Smith-Purcell, Cherenkovor Cherenkov DR • To bedone for LEETCHI • ComparingSP and Cherenkov

  4. Beam Tests • On CLEAR • TestingCoherent radiation from TR, DR, Smith-Purcell, Cherenkovor Cherenkov DR • Measuringpeak power for single bunch • On LEETCHI • Need new hardware and modifications of the beam line • Possiblytesting CSP or Cherenkov

  5. THzDetection • EO SD or EO up-conversion for short bunchlength • EO Spectral decoding • We have equipments to test up to 100GHz • for shorterwavelengthweneed new detectors –pushing the tests in 2018

  6. CLEAR and LEETCHI • Whatbeamparameters ? • For CLEAR, Bunchlength ? Trains ? • For LEETCHI : Beamenergy? Current ? • Infrastructure needed to carry ourbeam tests • Synergywithotherexperiments • Missinghardware • Solenoid and Experimentalchamber for LEETCHI • Specificbeammanipulation: RF deflector, scraper, • Whenwould the test beready to beperformed and how muchbeam time isneeded ? • What contribution to expectfromexternalpartners ? Material and Manpower,

  7. THz applications • Applications • In science • Identification of chemical component • Measuringpermeability • Transientphenonema • In Security –detection of explosive, drug • In inspection for Food quality / pharmacproduct • Generation • Using laser – 1u • Using SR –higher flux and wideband • Using laser induced breakdown in air

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