Resolution allowance choosing

The potential of a tunable dye laser should not be overlooked. A tunable dye laser, employing an organic dye as lasing material allows one to choose any suitable excitation line within a particular region. This is in contrast to the case of a gas ion laser which has a limited number of emission lines at fixed wavelength. Nevertheless, a tunable dye laser has significant drawbacks such as poor resolution imposed by the dye laser linewidth (1.2 cm-1) and a continuous background spectrum which requires the use of a tunable filter 15-18). 

The number of data points to be chosen in the Fj and F2 domains is dictated not only by the desired resolution but by other, external considerations, such as the available storage space in the computer, and the time that can be allocated for data acquisition, transformation, and other instrument operations. Clearly, to avoid any unnecessary waste of time, we should choose the minimum resolution that would yield the desired information. Thus, if the peaks are separated by at least 1 Hz, then the desired digital resolution should be R/2 = V2 Hz to allow for signal separation in the F domain. The resolution considerations in the F and F domains may be different, depending on what information is required from each domain... 

High resolution negative resists are needed for masked ion beam lithography (MIBL) and for the fabrication of MIBL masks by E-beam lithography (EBL). The MOTSS copolymer resists were developed to obtain the resolution of fine features that a bilevel resist can best provide. The flexibility afforded by choosing the structure of the HS, the copolymer composition, and the molecular weight allows a resist to be tailored by simple synthesis adjustments to have the particular sensitivity and etch protection which best suits the application. 

A pre-requisite for the successful extraction of key NMR parameters from an experimental spectrum is the way it is processed after acquisition. The success criteria are low noise levels, good resolution and flat baseline. Clearly, there are also experimental expedients that can further these aims, but these are not the subject of this review per se. In choosing window functions prior to FT, the criteria of low noise levels and good resolution run counter to one another and the optimum is just that. Zero filling the free induction decay (FID) to the sum of the number acquired in both the u and v spectra (in quadrature detection) allow the most information to be extracted. 

Normally 2D data sets are much larger than can be held in internal memory for display and the data must be reduced (compressed) to fit into the internal data tables. The Resolution command allows you to choose what the resolution will be during the next File/Open operation. Values are 128x128, 256x256 or 512x512 points. 

To start the printout operation the Print... option in the Output pull-down menu is used. If there is more than one window on the screen choosing the Print... option - and using the mouse - allows you to specify the window which should be plotted. If all windows should be plotted, use the Print all option. With Printer Setup... a variety of output device specific parameters defining the resolution, the paper size and other printer variables, may be set. 

The acquisition program allows the operator to choose the scan mode or the SIM mode, the range of masses that are scanned, either low or high resolution, and so on. The acquisition processor is set according to the data given by the operator concerning the analysis to be carried out. Most recent instruments are entirely electronically controlled from parameters... 

---