What's the difference between actinometric and actinometry?

Actinometric

Definition:

(a.) Pertaining to the measurement of the intensity of the solar rays, either (a) heating, or (b) actinic.

Example Sentences:

(1) A quantum yield phi of photooxidation of perazine derivatives estimated actinometrically and the pKa, values were used for the correlation with the substituent volumes.
(2) The UV disinfection of E. coli was carried out and additionally an actinometric determination of the irradiation intensity was made.

Definition:

Example Sentences:

(1) We have proceeded to the verification of their output with a spectrophotometer calibrated by actinometry and we have calculated their relative erythemal efficacy according to the Parrish's action spectrum for human erythema.
(2) The nature of the primary photochemical events in rhodopsin and isorhodopsin is studied by using low temperature actinometry, low temperature absorption spectroscopy, and intermediate neglect of differential overlap including partial single and double configuration interaction (INDO-PSDCI) molecular orbital theory.
(3) A fully corrected chemiluminescence monitoring spectrometer was calibrated for spectral sensitivity using the chemiluminescence of the bis-(pentachlorophenyl) oxalate system as a liquid light source, the total photon output of which had previously been determined by chemical actinometry.
(4) Therefore, it is considered feasible to simulate the photo-stability of KBT-3022 in aqueous solutions containing acetonitrile by exposure to all other light sources including diffuse daylight, if the cumulative number of photons of the light can be determined by actinometry.
(5) Actinometry of devices for ultraviolet irradiation of blood for the first time.