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B. Overview of Orestes Code: Laser physics simulation model.

B. Overview of Orestes Code: Laser physics simulation model. Physics:. e-beam: ionization and excitation from Boltzmann analysis plasma: 1D axially resolved, separate electron and gas temperatures kinetics: 24 species, 122 reactions, Includes KrF vibrational structure

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B. Overview of Orestes Code: Laser physics simulation model.

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  1. B. Overview of Orestes Code: Laser physics simulation model. Physics: e-beam: ionization and excitation from Boltzmann analysis plasma: 1D axially resolved, separate electron and gas temperatures kinetics: 24 species, 122 reactions, Includes KrF vibrational structure lasing and ASE: 3D, discrete ordinates, time dependent, ASE gain narrowing Objectives: system scaling, pulse shaping, improve efficiency Accomplishments: validated code design analysis for Electra

  2. Multi-species plasma chemistry for KrF kinetics

  3. Small Signal Gain Measurement(February 26, 2003) L = 95 cm Tw=.64 Tw=.64 0.91” dia. I0 305i Ii PD1 2 in. Cal L =20 cm L =20 cm Experimental Results (2in. Cal): Input 3.5 mV Output 940 mV Input 1.08 mV Output 850 mV Lower Input Output 640 mV No Input Output 640 mV

  4. Small Signal Gain Results Iout/Iin=e^(gl) Assumption 4: The intensity stays below the saturation intensity!! Case 1: 4.7%/cm Iin ~47 kW/cm^2 Iout ~4.1 MW/cm^2 Case 2: 5.5 %/cm Iin ~16 kW/cm^2 Iout ~3.1 MW/cm^2 If saturation intensity ~1.5 MW/cm^2 then Assumption 4 invalid Full Rigrod Analysis needed Helpful Comparison to Garpun Differences 100 cm E-beam Garpun used 95 cm E-beam Electra With Garpun graph Electra small signal gain greater than 7%/cm

  5. Time Response of Oscillator at Various Fluorine Concentrations 0.25%F2, 39.75% Kr, 60% Ar 0.7%F2 39.3% Kr 60% Ar 0.1%F2, 39.9% Kr, 60% Ar

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