A MALDI sample plate with no wells that is 10 millimeters thick. Graduations run vertically and horizontally on the plate. Typically this plate is used for MALDI imaging mass spectrometry. This target can be used with AXIMA MALDI-TOF instruments which have the AXIMA 10mm Sample Plate Adapter Kit (TO-722R00) (source modification) and with all MALDI-7090 instruments.