4. Ion impact localization and image reconstruction
4.1 Impact location
3D atomic probes owe their development to a position-sensitive, time-resolved detector. In addition to time of flight, the detector provides the position of ion impacts (X, Y ). Depending on the detector used, localization accuracy can reach 100 μm. Various technologies have been developed since the first instruments were introduced in the 1990s. Today's detectors consist of a set of two crossed delay lines (coiled lines, figure 5 ). These are placed behind a pair of microchannel wafers (charge amplifiers) that transform the impact of an ion (q = ne with n = 1, 2, 3...) into a spray of electrons (n = some 10 7 ) that irradiates...
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Ion impact localization and image reconstruction
Bibliography
Patents
Atomic Tomographic Wide Angle Laser Probe with very high mass resolution, BOSTEL Alain , DECONIHOUT Bernard , YAVOR Mickael , RENAUD ludovic, Date de dépôt 12/10/2007 Numero INIST 07 07178
Wide Angle Atomic Tomographic Probe with evaporation assisted by a "white" femtosecond laser pulse, DECONIHOUT Bernard, VELLA Angela, Francois Vurpillot, BREVET INTERNATIONAL n WO/2010/000574 Application number int:...
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