Different types of events recorded by SPI detectors. From the three cosmic photons (green, 1−3), single events (SE, 1), multiple events (ME, 2), or self-vetoed events (3) may arise. Background event types are from photons (blue) which may be prompt cosmic-ray (red dashed) related (4, 5), or delayed and radioactivity events (6); some of these may, or may not, be vetoed by the anticoincidence. Structural elements with different materials may create continuum photons and lines at different, characteristic, energies.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.