Time of flight elastic recoil detection analysis with a position sensitive detector

Zdravko Siketić; Iva Bogdanović Radović; Milko Jaksić; Natko Skukan

doi:10.1063/1.3356976

Time of flight elastic recoil detection analysis with a position sensitive detector

Rev Sci Instrum. 2010 Mar;81(3):033305. doi: 10.1063/1.3356976.

Authors

Zdravko Siketić¹, Iva Bogdanović Radović, Milko Jaksić, Natko Skukan

Affiliation

¹ Institute Ruder Bosković, P.O. Box 180, 1000 Zagreb, Croatia. zsiketic@irb.hr

PMID: 20370168
DOI: 10.1063/1.3356976

Abstract

A position sensitive detection system based on the microchannel plate detector has been constructed and installed at the existing time of flight (TOF) spectrometer in order to perform a kinematic correction and improve the surface time/depth resolution of elastic recoil detection analysis (ERDA) system. The position resolution of the detector has been tested for different types of ions and anode voltages. TOF spectra of recoiled O ions from SiO(2) and F from CaF(2) were collected in coincidence with position sensitive detector signal. Kinematic correction of TOF spectra improved surface time/depth resolution by approximately 20% for our system; however even higher improvements could be obtained in larger solid angle TOF-ERDA systems.