HyperMap Mapping

requires amics 5 1 0 or newer the released version of amics is {{version}} and can be found at docid\ se8jyhxszdqfpit7s1ja0 with instruction on the docid\ e1faehd1k20uedqhptzlx page manuals for previous versions of the software can be found at the docid\ d2biwe sybowhhdww0anz page method background hypermaps are georeferenced 3d data arrays where each x y location contains a full spectrum representing the area covered unlike matrix mapping mode, the data is collected by rastering the beam over the image at the scanning speed of the sem and integrating the resulting spectra into a single pixel the imaging settings define the dwell time at any given point and are measured in microseconds pixels are reconstructed from the image, and each pixel's dwell time is milliseconds in matrix mapping mode, by contrast, the beam is re positioned for each point and moved after the full dwell time in milliseconds has been achieved the hypermap mode (added after 3 3 0 1660) is designed to provide a much faster measurement than either segmentation mode or matrix mapping this speed advantage comes from the beam rastering across the entire image, eliminating all overhead between points advantages much faster data collection less sample damage data collected over the entire sample disadvantages no background subtraction more mixed phases bse map is generated at the pixel size of the hypermap measurement setup hypermap mode is one of the major mapping modes in amics investigator see docid\ qjbripv ha9kw9i95lkga for detailed instructions on adding a new measurement to the stage once added, the measurement properties for the measurement are displayed in the property window on the left hand side of the investigator window the properties in the "general properties" section will be the same as for all other measurement types the difference for hypermap is there is only the xray options avalaible for modifications spacing ( μ m) determines the pixel size of the image in microns xray ac time (ms) determines the dwell time for each pixel in milliseconds, which value will determine the total number of counts per point classification when checked, will perform a classification of the data note the spacing setting is linked to the magnification setting of the sem, so adjusting the spacing to a higher value will require changing to a lower magnification on the sem also, as hypermap is linked to bse resolution, amics will round the final spacing to an integer bse pixel resolution aside from the x ray spacing, hypermap only requires the area to be measured, and termination options are not available as the whole measured area must be measured