Andy Goddard

I currently work on several projects: OH lifetime, Sodium Dimer reacting with OH and RO₂ radical detection. The common theme of these projects is detecting radicals in the troposphere. The OH chemical lifetime is monitored using a FAGE cell coupled to a flow tube allowing the removal rate of the OH by a given air packet to be established. FAGE is also used to determine RO₂ concentrations by conversion of RO₂ species to HO₂ and subsequently to OH which can be monitored by the FAGE technique.

Previous Research

I obtained my PhD, entitled "Sulphur Based Fire Retardants" in 2001 from the University of York. Since then I have worked in Birmingham and Rennes (France) studying gas kinetics at very low temperatures in a CRESU apparatus. My initial contract in Leeds was to design and build a pulsed Laval nozzle apparatus which is a smaller pulsed version of the continuous flow CRESU apparatus used in Birmingham and Rennes. We have recently completed the construction of a new Highly Instrumented Reactor for Atmospheric Composition (HIRAC) in Leeds. I was employed to design and construct this chamber. Initial results are now being produced.

Selected Publications

Design and Performance of a Throughput-Matched, Zero-Geometric-Loss, Modified Three Objective Multipass Matrix System for FTIR spectrometry - David R Glowacki, Andrew Goddard and Paul W Seakins, Applied Optics, 2007.

Time-of-flight Mass Spectrometry for Time-Resolved Measurements - Mark A Blitz, Andrew Goddard, Trevor Ingham, and Michael J Pilling, Rev. Sci. Instrum. 78, 034103, (2007).

Design and Initial Results of a Highly Instrumented Photochemical Reactor for Characterisation of Atmospheric Chemical Processes (HIRAC) - D R Glowacki, A Goddard, K Hemavibool, F Anderson, W Bloss, R Commane, D E Heard, T Ingham, T Malkin, M J Pilling, and P W Seakins, Atmos. Chem. Phys. Discuss., 7, 10687-10742, 2007.

S E Taylor, A Goddard, M A Blitz, P A Cleary, D E Heard, Pulsed Laval nozzle study of the kinetics of OH with unsaturated hydrocarbons at very low temperatures. Physical Chemistry Chemical Physics (2008), 10(3), 422-437.

Hobbies