Given this information, my question is why does decp90 give me a value
of 18 usec. for the high power C-13 decoupler pulse width (using C-13
enriched sodium acetate). Also, when trying to do the low power decoupler
90 degree pulse width calibration using decp90lo I cannot seem to get the
program to work properly. Using a value of dlo of 18 db the antiphase
doublet decreases in intensity to a minimum and then increases *without*
changing phase. Any other values of dlo produce even poorer results and in
no case can I completely null the doublet and reverse its phase.
Is there a parameter which controls the power output of the BSV-10 in
high power mode such that it can be varied in, say, 1 db increments? If
so, this might explain my problems with decp90. As for decp90lo I am
mystified.
Keith
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- Dr. K. Brown brownk@chem4823.usask.ca -
- Department of Chemistry brownk@sask.usask.ca -
- University of Saskatchewan http://chem4823.usask.ca/kbrown.html -
- Saskatoon, SK -
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- Our OS who art in CPU, UNIX be thy name. -
- Thy programs run, thy syscalls done, -
- In kernel as it is in user! -
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