Hi Veera, I've looked at the pulse sequence rocsa2d.c and it seems that quad selection is hardcoded into phase tables table2 - for X nucleus CP pulses and table13 - for the receiver.

static int table2[4] = {0,0,1,1};
static int table13[4] = {0,2,1,3};

I think what will achieve your goal is modifying those entries like so:

static int table2[4] = {0,0};
static int table13[4] = {0,2};

or

static int table2[4] = {1,1};
static int table13[4] = {1,3};

one of them should result in real data another in imaginary (not sure which one will be which :).

Disclaimer: I don't know anything about solids sequences and just applying guesswork here.

Hi Veera, I've looked at the pulse sequence rocsa2d.c and it seems that quad selection is hardcoded into phase tables table2 - for X nucleus CP pulses and table13 - for the receiver.

The original records are:

static int table2[4] = {0,0,1,1};
static int table13[4] = {0,2,1,3};

I think what will achieve your goal is modifying those entries like so:so (and recompiling the sequence with seqgen command):

static int table2[4] = {0,0};
static int table13[4] = {0,2};

or

static int table2[4] = {1,1};
static int table13[4] = {1,3};

one of them should result in real data another in imaginary (not sure which one will be which :).

Disclaimer: I don't know anything about solids sequences and just applying guesswork here.

Hi Veera, I've looked at the pulse sequence rocsa2d.c and it seems that quad selection is hardcoded into phase tables table2 - for X nucleus CP pulses and table13 - for the receiver.

The original records are:

static int table2[4] = {0,0,1,1};
static int table13[4] = {0,2,1,3};

I think what will achieve your goal is modifying those entries like so (and recompiling the sequence with seqgen command):

static int table2[4] = {0,0};
static int table13[4] = {0,2};

or

static int table2[4] = {1,1};
static int table13[4] = {1,3};

one of them should result in real data another in imaginary (not sure which one will be which :).

Disclaimer: I don't know anything about solids sequences and just applying guesswork here.here. Will appreciate if someone corrects me. Thanks.