Protocol: Hetcortancp2d  Sequence: hetcortancp2d.c  Apptype: solidseq1d

Description:

    "H" to "X" HETCOR using FSLG during F1 followed by a ramped CP,
    with TPPM or SPINAL decoupling.
    
Parameter Groups

90H:  Module:  no
Sequence:  tancpx.c
Description:  Provides a 90-degree pulse on dec that can be used as a
              preparation pulse. Also used to store the dec calibration.
Parameters:  Channels Page
      aH90  - the amplitude of the pulse.
      pwH90 - the pulse length.
   
cpHX:  Module:  yes
Sequence:  tancpx.c
Description:  Implements constant, linear or tangent-ramped cross
              polarization from dec to obs.
Parameters:  Sequence Page
       shHX - 'c', constant, 'l', linear and 't', tangent shape on the
              channel designated with chHX.
       chHX - the variable-amplitude channel, 'fr' from or 'to', to.
       aHhx - median amplitude of the dec channel.
       aXhx - median amplitude of the obs channel.
       bHX - +/- tangent curvature (>0 to 1.0e5).
       dHX - amplitude width of the ramp. A negative width sets a ramp
              that starts high and decreases in amplitude.
       tHX - contact time
       ofHX - overall offset on the variable channel
       frHX = 'dec' -  channel with the initial polarization (must be
              set - not shown).
       toHX = 'obs' -  channel with the final polarization (must be set
              - not shown).
Implementation:  CP hx = getcp("HX",0.0,0.0,0,1);
Underscore function: _cp_(hx,phHhx,phXhx); phHhx is the overall phase
              table for the H channel and phXhx is that for the X channel.

fslgH:  Module: yes
Sequence:  tancpxfslg.c
Description:  Implements "frequency switched Lee Goldburg", FSLG,
              homonuclear decoupling on the dec channel.
Parameters:  Sequence Page
       aHfslg - amplitude of the FSLG dec pulses.
       pwHfslg - 360-degree flip on dec, off resonance (the length of
              each of the two FSLG pulses).
       nHfslg - FSLG cycles represented in the .DEC file.
       ofdHfslg - +/- frequency offset of alternating pulses, a
              negative value indicates that the first pulse has
              negative offset.
       ofHfslg - overall frequency offset.
       chHfslg = 'dec' must be set (not shown).
Implementation: MPSEQ fslg = getfslg("fslgH",0,0.0,0.0,0,1);
Underscore functions: _MPSEQ functions.

scalef1X: (processing)  Module:  no
Sequence:  c7inadwpmlg2d.c
Description:  Shows the F1 scale factor, scalesw1, for evolution of the
              obs nuclei under a multiple-pulse waveform.
Parameters:  Sequence Page
       scalesw1 - the F1 scale factor. Typically scalesw1 is the
              inverse of the mutiple-pulse scale factor.
Hseq:  Module:  yes
Sequence:  tancpx.c
Description: Chooses SPINAL or TPPM decoupling on the dec channel
             during acquisition
Parameters:  Sequence Page - the Hspinal and Htppm groups overlap
       Hseq - chooses the decoupling sequence, TPPM or SPINAL.
Implementation:  DSEQ dec = getdseq("H");  The router implements
             getspinal() or gettppm().
Underscore functions: _dseqon(dec); runs _tppm(); or _spinal();_
             dseqoff(dec); runs decprgoff();

Hspinal:  Module:  yes
Sequence: tancpx.c 
Description:  Implements SPINAL decouping on the dec channel during
              acquisition.
Parameters:  Sequence Page
       aHspinal - amplitude of the dec channel.
       pwHspinal - approximate 180-degree flip angle on resonance.
       phHspinal - +/- small angle phase. SPINAL64 is implemented
              with phases = +/- 1.0, +/- 1.5 and +/-2.0 times
              phHspinal.
       chHspinal = 'dec' must be set (not shown).
Implementation: SPINAL dec = getspinal("H"); or DSEQ dec =
              getdseq("H");
Underscore functions: _spinal(dec); and decprgoff(); or
             _dseqon(dec); and _dseqoff(dec);

Htppm:  Module:  yes
Sequence:  tancpx.c
Description:  Implements TPPM decoupling on the dec channel during
              acquisition.
Parameters:  Sequence Page
       aHtppm - amplitude of the dec channel.
       pwHtppm - approximate 180-degree flip angle on resonance.
       phHtppm - +/- small angle phase. TPPM is implemented
              with phases = +/- 1.0 times phHtppm for alternating
              pulses.
       chHtppm = 'dec' must be set (not shown).
Implementation: TPPM dec = gettppm("H"); or DSEQ dec = getdseq("H");
Underscore functions: _tppmon(dec); and decprgoff(); or _dseqon(dec);
              and _dseqoff(dec);

