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epr_T2_PO2
Convert relaxation time to oxygen concentration.
Syntax:
pO2 = epr_T2_PO2(T2)
pO2 = epr_T2_PO2(T2, Amp, mask, probe_info)
Description:
Converts relaxation time to oxygen concentration for the given parameters.
γ is the gyromagnetic ratio of electron, 2.802 MHz/G.
Other parameters are described below.
T2 - matrix of relaxation times T2 (float, μs)
Amp - matrix of spin probe concentration I (float, a.u.)
probe_info - (structure) of spin probe parameters
~.LLW_zero_po2 - Lorentzian line width LLWpO2=0 at 0 torr (float, mG, default is 10.2)
~.Torr_per_mGauss - proportionality coefficient κ (float, torr/mG, default is 1.84)
~.mG_per_mM - self broadening coefficient a (float, mG/mM, default is 0)
~.MDNmG_per_mM - self broadening coefficient for median spin-probe concentration (float, mG/mM, default is 0)
~.amp1mM - intensity I1mM corresponding to 1 mM (float, a.u.)
mask - mask to select values for conversion, use true(size(T2)) to select all (boolean)
pO2 - matrix of oxygen concentrations (float, torr)
size(T2)=size(Amp)=size(mask)=size(pO2)
Example:
T2 = 4;
sprintf('
Legend: EPR-IT functions; MATLAB functions; .
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