contact

For more information please get in touch with ARPANSA

  • Phone Number+61 3 9433 2220
  • Fax Number
  • email ACDS

Australian Clinical Dosimetry Service Staff


Dr Ivan Williams
Director

Dr Ivan Williams

Ivan Williams has fourteen years experience as a professional medical physicist, initially at the Peter MacCallum Cancer Centre (PMCC), the largest radiation oncology centre in Australia. Interspersed with his early clinical work he obtained a MSc (Research) in physics from the University of Melbourne by designing, building and testing a parallel-plate ionisation chamber. Between 2004 and 2008 Dr Williams was attracted back into full-time research. Supervised by Prof. Rob Lewis at Monash University he completed his PhD on 'Optimisation of Phase Contrast Imaging in Mammography'. Dr Williams then left Australia for Ireland to take up a Principal Physicist position at St Luke's Hospital, Dublin. Dr Williams left Ireland in 2010 as Acting Head of the Department of Physics at St Luke's Hospital to be the inaugral Director of the Australian Centre for Clinical Dosimetry.


Jessica Lye

Jessica Lye

Jessica Lye has experience with Monte Carlo modelling and with the Australian primary standards of air kerma and absorbed dose. She has worked to develop and update the kilovoltage, Cobalt-60 and new Megavoltage standards. This work included improvements to the standard of low energy kilovoltage X-rays allowing it to be reinstated as the Australian primary standard, and a new direct Monte Carlo conversion of absorbed dose to graphite to absorbed dose to water applicable to both Cobalt-60 and Megavoltage radiation. She provides modelling support and dosimetry expertise to the ACDS.


Andrew Alves

Andrew Alves

Andrew conducted his PhD research at RMIT University, in collaboration with the University of Melbourne and ANSTO studying nanotechnology employing MeV ion beams. Andrew then commenced a post-doctoral research position at the University of Melbourne at the centre for quantum computer technology where he studied many aspects of particle detectors in physics research.

Andrew began work at the ACDS in February 2013 and trained to become a clinical auditor. He now coordinates the level I OSLD audit.


Stephanie Keehan

Stephanie Keehan

Stephanie has been a PhD student at RMIT University for the last three years and is continuing her studies part time whilst working as an Audit Officer with the ACDS. Her thesis aim is to assess the contribution of neutron radiation to dose in high energy radiotherapy. She has been working on developing a reliable method for the measurement and characterisation of neutron dose in the high photon fluence present in radiotherapy bunkers. Determination of the neutron fluence, energy spectrum and dose will inform risk assessment for radiotherapy patients and staff. Other research activities of interest include measurements of gamma spectra and doses arising for the activation of other materials in radiotherapy treatment rooms.

Stephanie began work at the ACDS in March 2015 and trained to become an Assistant Clinical Auditor.


Maddison Shaw

Maddison Shaw

Maddison is a Radiation Therapist who graduated from RMIT University in 2010 with a Bachelor Applied Science (Medical Radiations) – Radiation Therapy. She has previously worked clinically at Sir Charles Gairdner Hospital and the Peter MacCallum Cancer Centre. Maddison has a special interest in Radiotherapy planning and has been involved in the development and implementation of IMRT, VMAT and SABR techniques. Maddison is currently completing a Research Masters at RMIT University, focusing on the development of a SABR dosimetry audit. A Radiation Therapist with recent clinical experience, Maddison provides advice into the ACDS regarding the clinical impact of the ACDS audits, their relevance to clinical practice and how to minimise the overhead for any facility being audited.

Maddison commenced with the ACDS at the beginning of June 2015 and trained to become a Clinical Auditor.

Daniela D'Antonio

Daniela D'Antonio

Daniela commenced with the ACDS in August 2015 as a Technical Officer. Daniela is currently acting as Audit Logistics Lead, a position she commenced in February 2016. Her work consists of working on the Level 1 Optically Stimulated Luminescent Detector (OSLD) audit, arranging logistics, scheduling audits and providing administrative assistance to the ACDS and Branch Manager.

Daniela graduated from Deakin University with a Bachelor of Biological Science. Her previous employment of 11 years at the Australian Red Cross Blood Service saw her work in a variety of departments including Inventory and Distribution, Quality Assurance and National Transplantation Services. Daniela conducted internal audits as the Quality Advisor and assisted in the facility move of the Southbank Processing Centre to the Melbourne Processing Centre in West Melbourne. Daniela’s more recent work saw her advise St. Vincent’s Institute Islet Transplantation program on Quality Management.


Jeremy Supple

Jeremy is a PhD candidate and casual lecturer at RMIT University where his research focuses on experimentally validating deformable dose accumulation calculations.  He has been developing a robust, reproducible method for measuring radiation doses delivered to dynamically deforming polymer gel dosimeters for direct 3D comparison to calculated dose distributions. Validation of deformable image registration based dose accumulation via direct measurement is a crucial step toward clinical implementation of such calculation techniques.

Jeremy commenced working at the ACDS in September 2016 and trained to be an audit support officer.


John Kenny
Senior Medical Physicist

John Kenny

John has twelve years experience as a medical physicist. He commenced a Masters of Applied Science (Medical Physics) at Queensland University of Technology in 2001, after having first completed a Bachelor of Science in Laser Sciences at Griffith University. John completed his Masters research part-time, looking at a novel approach for radiation therapy portal imaging, while working as a medical physicist at Calvary Mater Newcastle and then the Royal Brisbane and Women's Hospital. Before commencing with the ACDS in May 2011, John spent the previous six years at Premion. During this time he obtained ACPSEM accreditation and a senior physicist role, responsible across the organisation for imaging systems and all advanced applications, including the implementation of new technologies.

John has comprehensive clinical experience in external beam radiation therapy, brachytherapy and stereotactic therapy. He has a strong background in commissioning of new equipment and technologies, in particular having lead and worked in teams implementing the first image guided stereotactic system and the first RapidArc treatments in Australia.

In October 2012, John transitioned to a part-time role in order to take up the position of Chief Physicist at Radiation Oncology Queensland, John has since returned to Melbourne in June 2014 where he is appointed full-time as the Chief Medical Physicist at Epworth Radiation Oncology, while maintaining an active role as a member of the ACDS in an on-going casual appointment.


A/Prof Joerg Lehmann
PhD, DABR, MACPSEM

Joerg Lehmann

Prior to joining the ACDS in October 2011 Joerg had spent eleven exciting years in academic and clinical medical physics in California, USA. During his time at Stanford University he worked in pioneering fields such as Intensity Modulated Radiation Therapy (IMRT) and Intravascular Radiotherapy (IVRT). At Lawrence Livermore National Laboratory and the University of California, Joerg contributed to studies on the effects of low doses of ionising radiation on humans, both using cell lines as well as in vivo with radiotherapy patients. He also investigated nanoparticle based Radioimmunotherapy applications and their combination with Radiation Therapy.

Joerg has served on the Board of Directors of the American Association of Physicists in Medicine (AAPM) and its audit committee. He co-chaired the AAPM Task Group 147 on Quality Assurance for Non-Radiographic Radiotherapy Localization and Positioning Systems.

Joerg is accredited by the Australasian College of Physical Scientists & Engineers in Medicine (ACPSEM) for Radiation Oncology Medical Physics and certified by the American Board of Radiology (ABR) for Therapeutic Radiologic Physics. He has co-authored more than 40 papers in peer reviews journals, 100+ abstracts, 3 book chapters and he is first author on one patent. He also holds an Adjunct Associate Professorship with RMIT.

In early 2014 Joerg took up a conjoint position between the University of Sydney as an Associate Professor in the Institute of Medical Physics (School of Physics) and Calvary Mater Newcastle.  Joerg remains closely connected to the ACDS as an auditor, through research and in the development of new audits.


Leon Dunn
BSc (Hons 1st class), PhD, MACPSEM

Leon Dunn

Leon is presently a TEAP Registrar at Epworth Radiation Oncology. Leon began his involvement in Medical / Radiation Physics at RMIT University during his undergraduate degree.

After obtaining Honours (1st class) in Medical / Radiation Physics at RMIT University and receiving the Marc Reitman Memorial Award for the highest results in Theoretical Physics, Leon embarked upon his PhD in Medical Physics. He was the recipient of a three year scholarship from the Health Innovations Research Institute to pursue his research assessing the impact of motion on treatment planning and treatment delivery for stereotactic body radiotherapy.

Towards the end of his PhD Leon joined the newly formed ACDS and helped establish the framework, methods and logistics of the national dosimetric audit service. During his four years at the ACDS, where he is still employed as a casual auditor, he has travelled extensively throughout Australia auditing radiation therapy facilities and assisted to ensure the safe and effective use of radiation therapy. He recently organised and ran the Geant4 Monte Carlo modelling workshop in the Northern Territory for the South-Pacific Environmental Radioactivity Conference.

Since 2011 Leon has published 27 papers in peer-reviewed journals, eight of which were published in 2014, and 39 conference posters and presentations with a number as first author.


Professor Tomas Kron
PhD, FACPSEM, FCCPM, FInstP

Peter MacCallum Cancer Centre, Melbourne

Professor Tomas Kron

Tomas Kron was born and educated in Germany. After his PhD at the University of Frankfurt he migrated to Australia in 1989 to work in MRI research at the University of NSW. In 1990 he took up a position as clinical medical physicist at the Prince of Wales Hospital in Sydney and became Chief Physicist at the Newcastle Mater Hospital in 1993 after a spending some time at the Illawarra Cancer Care Centre. From 2001 to 2004 Tomas worked at the London Regional Cancer Centre in Canada on the commissioning of one of the first helical tomotherapy units. Since 2005 he is principal research physicist at Peter MacCallum Cancer Centre and Honorary Professor at RMIT and Wollongong Universities.

Tomas has an interest in dosimetry of ionising radiation, treatment verification, image guided radiotherapy and clinical trials quality assurance. He has co-authored a radiotherapy textbook, edited a book on Radiation Protection in Medicine and published more than 130 papers in refereed journals. Over the years he has maintained an interest in education reflected in many invited conference presentations, consultancies for the International Atomic Energy Agency (IAEA) and the International Society for Radiation Oncology (ISRO), and involvement in workshops and training in Australasia. From 2008 to 2009 Tomas Kron was president of the Australasian College of Physical Scientists and Engineers in Medicine (ACPSEM) the professional organisation representing medical physicists and biomedical engineers in Australia and New Zealand.


 

Top of Page