Relative resolution

The CRR mode involves retarding the electron kinetic energies to a constant ratio of H /H where H is the energy passed by the analyzer. Thus, the energies are retarded by a constant factor. Spectra acquired in this mode ate less easy to quantify, but small peaks at low kinetic energies ate readily detected. This mode of operation results in spectra of constant relative resolution throughout. The relative resolution is improved in this mode by a factor of E. ... 

Energy analyzers cannot be discussed without discussion of energy resolution, which is defined in two ways. Absolute resolution is defined as AE, the full width at half-maximum (FWHM) of a chosen peak. Relative resolution is defined as the ratio R of AE to the kinetic energy E of the peak energy position (usually its centroid), that is, R = AE/E. Thus absolute resolution is independent of peak position, but relative resolution can be specified only by reference to a particular kinetic energy. 

The ability to resolve the dissipation structures allows a more detailed understanding of the interactions between turbulent flows and flame chemistry. This information on spectra, length scales, and the structure of small-scale turbulence in flames is also relevant to computational combustion models. For example, information on the locally measured values of the Batchelor scale and the dissipation-layer thickness can be used to design grids for large-eddy simulation (LES) or evaluate the relative resolution of LES resulfs. There is also the potential to use high-resolution dissipation measurements to evaluate subgrid-scale models for LES. 

The slopes of the calibration curves for the HDC and Fractosil systems are 0.512 and 0.289, respectively. This indicates that the "resolution of the peak separation" for the Fractosil system is superior to that of HDC, since resolution is considered to be inversely proportional to the slope of the log particle diameter - AV calibration curve (26). However when peak spreading is taken into account, the actual relative resolution between particle populations is less for the Fractosil system 2k) a result which indicates that overall, for size distribution resolution, the HDC system is superior. 

A major source of the problem for systems with wide size distributions (and therefore relatively small numbers of small particles) is the strong dependence of the scattering cross section on particle diameter in the nonabsorbing wavelength range. Calculations have indicated that a means for improving relative resolution is to choose a wavelength where the particles can absorb as well as scatter (27). 

Number of Developments (p) Optimum Rf Single Development (Rf) Position of band after multiple development (R, ) Relative Resolution(a)... 

The relative resolution of an MRI does not depend particularly on the size of the imaged object and usually is of the order of one part in 102. Thus, the absolute resolution obtainable by MRI depends on the size of the system being imaged. The density resolution depends on many factors, but is usually of the order of a few percent. 

Relative resolution, 24 103 Relative temperature scale, 24 283 Relative velocity, between cores and electrons, 23 824... 

Note that it is the fwhm value of the spectrometer function, A sp, which appears in the formula and not the value A exp attached to the observed photoline, as might have been expected naively (for the role of A exp see below). Hence, it is convenient to introduce the constant relative resolution R = (A sp/ °jn) of electrostatic deflection analysers introduced in equ. (1.49) which leads to the dispersion corrected area f... 

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