![]() ![]() The dashed lines in the plot correspond to the single shot power profiles, while the solid line indicates the average value over all shots. The time-resolved energies are obtained from the LPS measurements, as shown for a single shot in the top plots of Fig. 2. This reference value is then compared to the time-resolved energy of the lasing-on conditions on a shot-to-shot basis. As a reference for lasing-off conditions, we take the median of the time-resolved energy over 20 additional shots when lasing was disabled. In the figure, the pulses are aligned in time for better visualization. The bottom plot of the figure displays the reconstructed FEL power profile for 20 consecutive shots, which is obtained from the time-resolved energy loss of the electrons due to lasing. In the figure, one can observe the characteristic K-shape resulting from the space-charge forces of a fully compressed electron beam (as anticipated in simulations and also observed in Ref. ![]() The energy axis was obtained with the transverse dispersion value of 0.3 m defined by the dipole and quadrupole magnets before the screen. The resulting calibration was 45.0 ± 2.1 µm/fs. The time axis was calibrated by synchronously recording the horizontal centroid of the streaked image and the RF phase for hundreds of shots. The imprint of the FEL process is clearly visible in the core of the bunch, where the central energy is reduced and the energy spread is increased. The lasing was disabled by slightly detuning the undulator modules. The pulse energy for this case was around 20 µJ. 17,36įigure 2 shows a single-shot image of the final LPS of the electron beam for 642 eV for lasing-enabled and lasing-disabled conditions, as well as the FEL power profile reconstruction obtained by comparing the LPS for the two conditions. We employ the spectrometer to derive the FEL pulse duration from the weighted average spike width. 35 The beamline grating monochromator is the dispersive element of the spectrometer, while a YAG screen and a 2D CMOS detector image the dispersed spectrum at the exit slit plane. 34 Third, we use a photon spectrometer to measure the FEL spectra. 17 Second, we employ a photon gas detector to measure the FEL pulse energy. A TDS is very important for setup and diagnostic purposes, but it is not strictly necessary since the standard compression monitors may be sufficient to setup a fully compressed electron beam. 31–33 This method may be affected by resolution and FEL slippage effects. The TDS is placed after the undulator beamline, so it can be used to reconstruct the FEL power profile by comparing the LPS between lasing-on and lasing-off conditions. First, we employ an X-band RF transverse deflecting structure (TDS) 30 to measure the longitudinal phase space (LPS) of the electron beam (energy vs time) after the undulator. In this section, ensure this default check box is also selected:īasic WebLogic Server Domain - 10.3.6.Three main diagnostics are used to characterize and optimize the electron beam and the FEL radiation at Athos. ![]() Generate a domain configured automatically to support the following products On Select Domain Source, click this radio button: On Welcome, click this radio button to create an Oracle WebLogic 10.3.6.0 domain in your projects directory. Getting started with WebLogic Server 10.3.6 On the QuickStart links panel, select this link: To manually launch the QuickStart configuration wizard, run this executable: If you selected the Run Quickstart check box on the Installation Complete menu of the installer, QuickStart is automatically launched. These instructions guide you in the creation of a domain for JD Edwards EnterpriseOne. You can use QuickStart to create a starter domain using the Configuration Wizard. 5.6 Using QuickStart to Configure Oracle WebLogic 10.3.6.0
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