Hi Bruker Users,
I have been doing tppm decoupling for a long time now on our AMX-
400. I am running xwin 2.6 patchlevel 5, which Bruker tells me is
the highest level I can run given our existing hardware configuration.
The approach I use is to hard code it into the pulse sequence using
the following 3 lines of code:
7 p2:d ph10
p2:d ph11
lo to 7 times l0
It works great but is annoying since I have to calculate the loop
counter l0 each time as a function of the acquisition time and p2.
Optimizing p2 is therefore slow since I can't array it with paropt.
The obvious fix for this is to use a define statement in the sequence
but I cannot get this to compile for me. I get some sort of parse
error(s) every time. I have tried every variation I can think
of...aq/p2/2...AQ/p2/2...aq/(p2*2)...etc. The crazy thing is that within
the ased editor or even eda, I can type in aq/(p2*2) for the value of
the loopcounter and it calculates it for me...but doesn't work when I
use this in the sequence itself!
Is anybody out there doing tppm with a version of xwin < 3.x and
can optimize the 2 tppm pulses using paropt? If so, I'd love to hear
how your sequence is coded. Is it possible to do tppm as a cpd
sequence with an AMX and xwin 2.6?
Seasons Greetings!
Mike
---------------------------------------------
Michael D. Lumsden, Ph.D.
NMR Facility Manager
Atlantic Region Magnetic Resonance Centre
Room 428, Department of Chemistry, Dalhousie University
Halifax, Nova Scotia, Canada, B3H 4J3
phone:(902)494-1635
FAX: (902)494-1310
email: mike.lumsden@dal.ca
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