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| PROCESSING YOUR DATA | ||
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To access help with a specific NUTS operation, click here. |
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| Signal enhancement | ||
| Most of the time, you want to get the largest signal possible in a reasonable amount of time. To do this, you can simply accumulate data for a longer period of time (or number of scans). However, to double the signal-to-noise ratio (S/N) of the spectrum, you must quadruple the number of scans. | ||
| However, once you have reached the data analysis stage, it is too late to increase the acquisition time. Another way of improving S/N is called apodization, or window processing. Most frequently, the data is multiplied by a decaying single-exponential curve. The Fourier Transform of the new data will show improved S/N and slightly increased linewidth. These decaying single-exponential apodization functions are sometimes called line-broadening functions. | ||
| To set the line-broadening factor (LB) in NUTS, select Conditions under the Process menu, and input an appropriate value for LB. Close the dialog box, and type em in the command line area. Move your mouse over the figure below to see this sequence (click here for larger versions) | ||||
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