;Anti z-COSY pulse sequence that has been incorporated into a stimulated echo for diffusion measurements. ;Includes suppression of ZQ and axial peaks. #include #include #include define loopcounter count "count=td1/2" "DELTA1=d20-p1*2-p30-d16-3u-p19-d16-3u" 1 ze 2 50u BLKGRAD d1 pl1:f1 3 50u UNBLKGRAD p1 ph1 3u p30:gp6 d16 p1 ph2 3u p19:gp7 d16 DELTA1 p1 ph3 3u p30:gp6 d16 d0 p1*0.111 ph4 3u pl2:f1 300u gron0 p11:sp1:f1 ph5 100u groff 30u pl1:f1 d2 p17:gp1 d3 p1*0.111 ph6 go=2 ph31 50u BLKGRAD d1 wr #0 if #0 zd 4 50u BLKGRAD d1 pl1:f1 5 50u UNBLKGRAD p1 ph7 3u p30:gp6 d16 p1 ph8 3u p19:gp7 d16 DELTA1 p1 ph9 3u p30:gp6 d16 d0 p1*0.111 ph10 3u pl2:f1 300u gron0 p11:sp1:f1 ph11 100u groff 30u pl1:f1 d2 p17:gp1 d3 p1*0.111 ph12 go=4 ph14 50u BLKGRAD d1 wr #0 if #0 zd 30u id0 lo to 3 times count exit ph1=0 ph2=0 ph3=0 2 ph4=0 ph5=0 ph6=0 ph7=1 ph8=1 ph9=1 3 ph10=0 ph11=0 ph12=0 ph31=0 2 ph14=0 2 ;pl1 : high power ;pl2 : zero power (120 dB) ;p1 : 90 degree high power pulse ;p11 : duration of sweep ;p17 : duration of 2nd homospoil [5 msec] ;p19 : duration of 1st homospoil [2 msec] ;p30 : duration of refocusing gradient (little DELTA) ;d0 : incremented delay ;d1 : relaxation delay ;d2 : gradient recovery delay [2 msec] ;d3 : gradient recovery delay [2 msec] ;d16 : gradient recovery delay ;d20 : diffusion time (big DELTA) ;sp1 : power for sweep ;gpz0 : gradient strength for ZQ suppression ;gpz1 : gradient strength for 2nd homospoil [50%] ;gpz6 : strength of refocusing gradient ;gpz7 : gradient strength for 1st homospoil [37%] ;in0 : 1/(2 * SW) = DW ;nd0 : 1 ;NS : 2 * n ;DS : 8 ;td1 : twice the number of t1 increments ;count : actual number of t1 increments ;MC2 : States