FEIT Research Project Database

Pulse processing for spectroscopy

Project Leader: Jonathan Manton
Collaborators: Paul Scoullar (Southern Innovation)
Primary Contact: Jonathan Manton (jmanton@unimelb.edu.au)
Keywords: signal processing
Disciplines: Electrical & Electronic Engineering
Research Centre: Nonlinear Signal Processing Lab

An X-ray or gamma-ray detector produces a pulse whenever it detects a photon. The area under the pulse is proportional to the energy of the photon. A histogram showing the energy levels of the photons scattered by a sample can be used to identify the atomic structure of the sample; this technique is known as spectroscopy. Finding each pulse, and the area under each pulse, becomes very difficult if two or more pulses overlap. Solving this pulse pile-up problem would significantly increase the efficiency of spectroscopy techniques and is the focus of this project.