For resolution test of SE and BSE imaging and also for chemical mapping in high-resolution systems such as an Auger scanning instrument. Gold particle range from 5nm to 150nm approximately.
For very high resolution performance testing this specimen has a smaller gold particle size ranging from <3nm to 50nm as compared to the high resolution test above. Ideal for testing at instrument magnifications of 50,000x and above.
With gold particles ranging from <2nm to 30nm, this test is suitable for ultra high resolution SEM tests such as field emission electron source. A magnification of at least 80,000x is required for this test.
The various spacings created by the dendritic structure give the gap test, and the topographical arrangement of the dendrites leads to the gray level test. Probe Size range of 25nm to 75nm.