Directory of scientists

Prof. Aller is also heading a research group dealing with the characterisation of coal fly ashes. Main methods for this research are atomic spectroscopy, scanning electron microscopy/energy dispersive X-ray spectrometry and vibrational spectroscopy. He is still in the process of analyzing the behaviour of coal fly ashes as an environmental problem and their possibilities to be recycled.

• Atomic Absorption Spectrophotometer, Termo Jarrel Ash SH 11, equipped with a graphite furnace, model 188.
• Plasma Emission Spectrometer, AI 1000/2000.
• Fourier Transform Infrared Spectrometer, Perkin Elmer, model System 2000, equipped with an air-refrigerated deuterium triglycine sulphate detector.
• Scanning Electron Microscope JEOL, model JSM-6100, equipped with an energy dispersive X-ray detection (LINK) system.
• Proportional counter, Canberra, low background, model 2404.
• Intrinsic germanium Detector, Canberra, model GR 2520, joined to an electronic chain for gamma spectrometry containing a high voltage source, amplifier and a multichannel analyzer, Canberra, de 4000 canales, model System 30 Plus.