Angstrom: A non-SI unit of length used to express wavelengths of light, bond lengths, and molecular sizes. 1 Å = 10-10 m = 10-8 cm.
Wavelength: The distance between one peak or crest of a sine wave and the next corresponding peak or crest. The wavelength of any frequency may be found by dividing the speed of sound by the frequency.
Pixel Size: the number of Angstroms per pixel in the digitized micrograph. Pixel size is computed as ps (A/p) = [10,000(A/u) * SR(u) * DF] / M, where ps = pixelsize, SR = scanning resolution, DF = decim . . . View Full Definition
Defocus: defocus setting (with reference to the Gaussian focus) in the electron microscope, normally given in Angstrom units, which determines the shape of the CTF. For different settings of the defo . . . View Full Definition
Nanometer: A unit of length, equal to 10-9 meters, and equal to 10 Å (Angstroms).
Debye: A common non-SI unit of dipole moment, named for Dutch physical chemist Peter Debye. A charge separation equal to one electron charge placed one Ångstrom unit apart has a dipole moment of 4. . . . View Full Definition