A compact position-sensitive time-of-flight detector for high-energy elastic recoil detection analysis

Autor: J. P. Biersack, P. Goppelt-Langer
Rok vydání: 1996
Předmět:
Zdroj: Radiation Effects and Defects in Solids. 140:103-109
ISSN: 1029-4953
1042-0150
DOI: 10.1080/10420159608212944
Popis: A new time-of-flight detector arrangement has been developed and optimised for elastic recoil detection analysis (ERDA). In contrast to other ERDA detectors, recoil masses are restricted to values below 40. Then incident ions in the mass range below 60 amu at energies of 0.5–1.0 MeV/amu are suitable which can be easily produced by tandem accelerators above 3 MV terminal voltage. The flight path necessary for mass separation can be reduced to below 20 cm and large solid angles become possible with large but still standard size surface barrier detectors. Sufficient position sensitivity is achieved by time-of-flight measurements over mm distances. The flight path is defined by two detectors, a pure timing detector and a surface barrier detector, tilted in opposite directions. The detection set-up consists of two channelplate detectors and a subsequent surface barrier detector (SBD), which finally stops the projectile (ion or recoil). Both timing detectors are of tilted foil type. Electrons emitted f...
Databáze: OpenAIRE