`ex_7pdeer`¶

7-pulse DEER experiment

Syntax¶

info = ex_7pdeer(t)
pathways = ex_7pdeer(t,param)

Parameters

t - Time axis (M-array), in microseconds
param - Model parameters (array)

Returns

pathways - Dipolar pathways (array)
info - Model information (struct)

Model¶

In order to reduce the parameter space, only the dipolar pathways refocusing at positive times (pathways #1-3) are considered in this model:

$K(t,r) = [\Lambda_0 + \sum^3_{p=1} \lambda_p K_0(t-T_0^{(p)},r)] \prod^3_{p=1} B(t - T_0^{(p)},\lambda_p)$

where $T_0^{(1)}=0\;\mu s$ , $T_0^{(2)}$ , and $T_0^{(3)}$ are the refocusing times of the three modulated dipolar pathways at positive evolution times.

Variable	Symbol	Default	Lower	Upper	Description
`param(1)`	$\varLambda_0$	0.4	0	1	unmodulated pathways, amplitude
`param(2)`	$\lambda_1$	0.4	0	1	1st modulated pathway, amplitude
`param(3)`	$\lambda_2$	0.2	0	1	2nd modulated pathway, amplitude
`param(4)`	$\lambda_3$	0.2	0	1	3rd modulated pathway, amplitude
`param(5)`	$T_0^{(2)}$	$1/5\max(t)$	$1/5\max(t)-2$	$1/5\max(t)+2$	2nd modulated pathway, refocusing time (us)
`param(6)`	$T_0^{(3)}$	$2/5\max(t)$	$2/5\max(t)-2$	$2/5\max(t)+2$	3rd modulated pathway, refocusing time (us)