The Experimental Setup Window

  1. Spectrometer Frequency: Enter desired spectrometer (1H) frequency in MHz.
  2. Dimension: Use this pulldown button to select the dimension of the experiment: 1D, 2D, or 3D (coming soon).
  3. Pulse Calibration tool: This is a built-in calculator that imitates pulse/power level calibration, that might be necessary if various power levels are used in the pulse sequence. Given the reference power level and the 90-deg pulse length defined in Channel Settings (10), this tool allows determination of a 90-deg. pulse corresponding to the desired power level, or vice versa, determines power level, given the desired 90-deg pulse length. To perform the calculation: Use these calibrated values to set the corresponding parameters in the Program Parameters Window.
  4. Spectral Widths display Displays selected spectral widths (in Hz) in both spectral dimensions.
  5. Spectral Widths Selection tool Enter desired spectral widths (in ppm) in F1 and F2.
  6. CBasic Frequency Selection tool: Use these pull-down menus to select basic frequency for each spectral dimension (you celect it via selecting the channel or gyromagnetic ratio associated with each spectral dimension): e.g. both BF1 and BF2 should be selected as CH1 (1H channel) for a homonuclear (proton) experiment, while BF1 should be set to 15N channel (e.g. CH2 in the example shownon the picture) for a heteronuclear 1H{15N} experiment.
  7. Number of Scans: Use this box to enter number of scans for the experiment (default ns=1).
  8. Close button: Closes the Experimental Setup window.
  9. Size of Time-Domains: Enter number of time data points to be collected in each dimension. The number of time-domain rows (boxes) equals the selected dimension of the experiment.
  10. Channel Settings tool: Up to four channels can be used in VNMR. Use this tool to define for each channel (as necessary): Note: If several channels are tuned to the same nucleus (e.g. 1H), then the carrier position (Op) for only one of them can be set to a nonzero value, the rest of these channels must have Op set to 0.

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Page designed by David Fushman & Peter Nicholas. Modified 11/26/2002.