Calculate dipolar EPR (DEER) background signal.
Vinter = dipbackground(t,conc,lambda) dipbackground(...)
dipbackground
calculates the inter-molecular DEER signal for a homogeneous three-dimensional distribution of spins.
t
is the time vector, in microseconds. conc
is the spin concentration, in micromolar (µM). lambda
is the modulation depth, between 0 and 1.
The output Vinter
is the inter-molecular dipolar background decay function, scaled such that it is equal to 1 at time zero.
Here is a typical application, for a 50 µM spin concentration and a modulation depth of 0.3:
t = -0.2:0.020:5; % µs Vinter = dipbackground(t,100,0.3); plot(t,Vinter)