Setting up shaped pulses

From NMR Wiki

(Difference between revisions)
Jump to: navigation, search
(Bruker)
(Bruker)
Line 12: Line 12:
* variable '''spnam3''' contains the (string) name of the [[waveform]] file
* variable '''spnam3''' contains the (string) name of the [[waveform]] file
* any power value for channel '''f3''' set before is ignored ([http://qa.nmrwiki.org/question/91/is-value-of-default-channel-power-ignored-in-bruker-systems-for-the-shaped-pulses ???]) and '''sp3''' is used instead
* any power value for channel '''f3''' set before is ignored ([http://qa.nmrwiki.org/question/91/is-value-of-default-channel-power-ignored-in-bruker-systems-for-the-shaped-pulses ???]) and '''sp3''' is used instead
 +
 +
In order to use a shaped pulse in the experiment:
 +
* the waveform may need to be created
 +
* value of '''sp3''' needs to be determined based on the calibration
==Varian==
==Varian==

Revision as of 21:58, 29 March 2010

Bruker

On Bruker systems the statement for a shaped pulse is similar to:

(p3:sp3 ph3):f3

Here it is intended to apply to channel f3 (channel 3) a pulse of duration p3 microseconds using phase table ph3.

Usage of :sp3 in the statement implies these things:

  • the pulse is shaped
  • sp3 is the variable with a value of maximum power for the pulse
  • variable spnam3 contains the (string) name of the waveform file
  • any power value for channel f3 set before is ignored (???) and sp3 is used instead

In order to use a shaped pulse in the experiment:

  • the waveform may need to be created
  • value of sp3 needs to be determined based on the calibration

Varian

explain how to set up shaped pulses on Varian systems

Links

related question on the forum

Personal tools