High spatial resolution two-dimensional position sensitive detector for the performance of coincidence experiments - Laboratoire de Chimie Physique-Matière et Rayonnement Accéder directement au contenu
Article Dans Une Revue Review of Scientific Instruments Année : 2005

High spatial resolution two-dimensional position sensitive detector for the performance of coincidence experiments

Résumé

A position sensitive detector (PSD) adapted to the technical and mechanical specifications of our angle and energy resolved electron-ion(s) coincidence experiments is described in this article. The device, whose principle is very similar to the one detailed by J. H. D. Eland [Meas. Sci. Technol. 5, 1501 (1994)], is composed by a set of microchannel plates and a delay line anode. The originality comes from the addition in front of the encoding surface of a ceramic disk covered by a resistive surface. The capacitive coupling between the anode and the resistive plane has the double advantage of eliminating the spatial modulations due to the lattice of the anode and also of sensitizing a greater number of electrodes, increasing thus considerably the accuracy of the position measurements. The tests carried out with a time to digital conversion module of 250 ps resolution showed that a spatial resolution better than 50 mu m and a dead time of 160 ns can be achieved. Typical images obtained with the help of the EPICEA and DELICIOUS coincidence setups are also shown.
Fichier non déposé

Dates et versions

hal-00145836 , version 1 (11-05-2007)

Identifiants

Citer

D. Céolin, G. Chaplier, M. Lemonnier, G. A. Garcia, C. Miron, et al.. High spatial resolution two-dimensional position sensitive detector for the performance of coincidence experiments. Review of Scientific Instruments, 2005, 76 (4), pp.043302. ⟨10.1063/1.1891372⟩. ⟨hal-00145836⟩
67 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More