;1H constant time spin echo with cw pulse on X channel for half-echo period ;Full echo acquisition ;Sequence is used to calibrated X RF fields using Bloch-Siegert shifts ;Reference: Hung and Gan, JMR, 2020, 310, 106636. ;avance-version (06/11/12) ;1D sequence ;cnst31 = spin rate in Hz ;$CLASS=Solids ;$DIM=1D ;$TYPE=direct excitation ;$SUBTYPE=simple 1D ;$COMMENT= ;pl1: f1 channel - power level for pulse (default) ;pl2: f2 channel - power level for f2 irradiation ;pl20: f1 channel - power level for saturation ;p1 : f1 channel - high power pulse ;p3 : f2 channel - Bloch-siegert irradiation, p3 < d6 ;p20: f1 channel - 90 degree for saturation ;d1 : relaxation delay; 1-5 * T1 ;d20: delay between saturation pulses ;l6 : number of rotor periods in the half-echo ;l20: number of saturation pulses "d31=1s/cnst31" "p2=2*p1" define delay half_echo "half_echo=l6*d31" "d6=half_echo-p1/2-p2/2-p3" "d7=l6*d31-p2/2-de" #include #include 1 ze 2 30m 3 d20 ; saturation (p20 pl20 ph0):f1 lo to 3 times l20 d1 ; relaxation (p1 pl1 ph1):f1 ; excitation (p3 pl2 ph5):f2 ; F2 irradiation d6 (p2 pl1 ph2):f1 ; full echo d7 go=2 ph31 30m mc #0 to 2 F0(zd) HaltAcqu, 1m exit ph0= 0 ph1= 0 2 1 3 0 2 1 3 ph2= 1 1 0 0 3 3 2 2 ph3= 0 0 3 3 2 2 1 1 ph5= 0 ph31=0 2 1 3 0 2 1 3 ;$Id: zg,v 1.8 2005/11/10 12:17:01 ber Exp $