Fig. 1

Top: the background subtracted pulse-height spectrum obtained for CD3CDOD+ using the IID system without the grid in front of the detector. The large peak at high energy is due to particles impacting at full beam energy. If losses of heavy fragments that miss the detector due to their high transverse energy would occur, one or two smaller peaks at lower energies would indicate that. It is clear that no losses of heavy fragments are observed. The sharp feature at very low mass/energy is due to noise in the detector system. Bottom: the background subtracted pulse-height spectrum obtained for CD3CDOD+ using the IID system with the grid inserted in front of the detector. The three major peaks are due to signals from passing fragments containing one, two or three heavy atoms, respectively.
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.