Fluorescence parameters derived from the extracted data

dV/dto = 4(F300µs − F₀)/(F_M − F₀)

Approximated initial slope (in ms⁻¹) of the fluorescence transient V = f(t)

Sm = (Area)/(F_M − F₀)

Normalized total complementary area above the OJIP transient (reflecting multiple turnover Q_A reduction events)

Yields or flux ratios

TRo/ABS = [1 − F₀/F_M]

Maximum quantum yield of primary photochemistry at t = 0

j_Eo= ETo/ABS = [1 − (F_J/F_M)]

Quantum yield for electron transport at t = 0

y_o = ETo/TRo = (1 − V_J)

Probability (at t = 0) that a trapped exciton moves an electron into the electron transport chain beyond Q_A^-

Specific fluxes or activities per reaction center (RC)

10RC/ABS = Mo(1/VJ)(1/j_Po)

Absorption per RC

TRo/RC = Mo/V_J

Trapped energy flux per RC (at t = 0)

ETo/RC = Mo(1/V_J)y_o

Electron transport flux per RC (at t = 0)

Phenomenological fluxes or activities per excited cross section (CS)

ABS/CSo » F₀

Absorption flux per CS, approximated by F₀

TRo/CS = j_Po(ABS/CSo)

Trapped energy flux per CS (at t = 0)

ETo/CS = j_Eo(ABS/CSo)

Electron transport flux per CS (at t = 0)

De-excitation rate constants

Kp

Photochemical de-excitation rate constant

Kn

Non-photochemical de-excitation rate constant

Sum K

The sum of photochemical and non-photochemical rate constants

Performance index

PI = RC/(ABSRC) × j_Po/(1 − j_Po) × y_o/(1 − y_o)

Performance index on absorption basis