CPMG Echo Train

Carr-Purcell-Meiboom-Gill Echo Train

****** 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