****** The System *******
spectrometer(MHz) *
spinning_freq(kHz) *
channels C13
nuclei C13
atomic_coords *
cs_isotropic *
csa_parameters *
j_coupling *
quadrupole *
dip_switchboard *
csa_switchboard *
exchange_nuclei *
bond_len_nuclei *
bond_ang_nuclei *
tors_ang_nuclei *
groups_nuclei *
******* Pulse Sequence ******************************
CHN 1
timing(usec) 0.5 [1000]2900
power(kHz) 500 [0]2900
phase(deg) 90 [0]2900
freq_offs(kHz) 0 [0]2900
******* Variables ***********************************
T2SQ_1_1=1000
sigma=0.006
pulse_1_1_[100:200:2900]=1.0
power_1_1_[100:200:2900]=500
** Chemical shifts inhomogeneity
ave_par x/-0.02:0.0025:0.02/
cs_iso_1=0.1+x
W=sum(exp(-0.5*(x.mx/sigma).^2))
ave_wht=exp(-0.5*(x/sigma)^2)/W
fig_title="Carr-Purcell-Meiboom-Gill Echo Train"
** use thinner lines for the plot
fig_options="--widths 0.6"
******* Options **************************************
rho0 I1z
observables I1p
EulerAngles *
n_gamma *
line_broaden(Hz) *
zerofill *
FFT_dimensions *
options -oes -re -py