excitation volume

excitation volume

[‚ek‚sī′tā·shən ‚väl·yəm]
(physics)
In electron-probe microanalysis, the volume of the x-ray source used to penetrate and diffuse into the target sample.
References in periodicals archive ?
A requisite of paramount importance for single fluorescent molecule detection is the reduction of the excitation volume of the molecule in order to discriminate the signal emitted by a single molecule among the signal arising from surrounding molecules, which acts as an interfering background [28].
All photosensitization studies were successful in producing singlet oxygen and TPE was found to be efficient in producing singlet oxygen in a small excitation volume as compared to OPE.
Thus, the probability of TPE is the greatest in the focal plane and excitation volumes as small as 0.