The standard experimental method is to vary the attenuation length
, keeping the aperture plane at the fixed source-to-FAC distance, and thus to derive the effective attenuation coefficient for the air kerma.
However, in order to use a liquid scintillator based on water for a neutrino detector, it should provide a sufficient LY and also have a long attenuation length
and chemical stability over several years of experiments.
The basic difference in the coupling mechanism between a conventional coupled-line backward coupler and a CRLH coupled-line backward coupler is that, in the former case, coupling is related to electrical length [beta]d, whereas in the latter case, it is related to the attenuation length
Determination of AE Magnitude and Attenuation Length
The pathlength of air, or any other matter, required to attenuate the radiation flux by the factor of exp(-1) is called the attenuation length
The Sci-Fi have been characterized to measure the attenuation length
of the light over the distance travelled from the production point to the end of the fiber that is optically coupled to a photosensor.
where the attenuation length
[l.sub.a] = 1/Re([GAMMA]) is the characteristic distance that the wave travels in the tube before it damps out (see Sec.
First tests on determining the attenuation length
of a radio signal at 400 and 800 MHz on samples from the "Unirea" salt dome in Slanic Prahova, Romania, showed a large deviation from the ideal medium case .
The measured thicknesses depend on knowledge of the effective attenuation length
(EAL) of the detected photoelectrons in SiO2 for the particular film thickness and measurement configuration.
This implies a thickness of 34 nm of Ge at the 3 [micro]m ring, and 140 nm at the edge of the entire sample, based on Beer's law and an exponential attenuation length
of 265 nm  which is appropriate for Ge at its bulk density.