Professor William Evans
MBE MA(Oxon) PhD(Wales) FInstP FIPEM FSRP HonMRCR CPhys CSci CRadP
Honorary Professor
- evanswd1@cardiff.ac.uk
- +44 (0)77 0217 4012
- Medical Physics - Room GTB2/35, Main Hospital Building, University Hospital of Wales, Heath Park, Cardiff, CF14 4XN
- Welsh speaking
- Available for postgraduate supervision
Overview
I am a medical physicist and registered clinical scientist; I worked in the National Health Service for over 40 years. In 2017, I retired as Head of Medical Physics and Clinical Engineering in the Cardiff and Vale University Health Board, based at the University Hospital of Wales. The responsibilities of the post included the provision of a wide range of clinical, scientific and technical services but my own areas of expertise were nuclear medicine, bone densitometry, body composition measurement and radiation safety. In 2021, I returned to work for the Health Board as a Consultant Clinical Scientist ito support the bone densitometry and osteoporosis services.
Throughout my career, I had a strong interest in teaching, training and research. I am an Honorary Professor in the School of Engineering and I have co-supervised several PhD students whose projects have involved various aspects of medical radiation physics and engineering. In addition, I have acted as reviewer and internal examiner for Cardiff University research degrees.
Biography
Education
1981-1983 University College Cardiff: Postgraduate Diploma (Computer Studies)
1972-1976 University of Wales (University College Cardiff): PhD (Atomic Physics)
1969-1972 University of Oxford (Jesus College): BA (Physics), MA (1976)
1962-1969 Whitland Grammar School, Carmarthenshire: O level and A/S level Certificates
1956-1962 Pantycaws County Primary School, Carmarthenshire: Eleven Plus Certificate
NHS Appointments
2017-Present Honorary Consultant Clinical Scientist, Cardiff and Vale University Health Board
2010-2017 Head of Medical Physics and Clinical Engineering, Cardiff and Vale University Health Board
2003-2010 Consultant Clinical Scientist and Head of Medical Physics, Cardiff and Vale University Health Board
1995-2003 Consultant Medical Physicist, Cardiff and Vale NHS Trust
1984-1995 Principal Medical Physicist, University Hospital of Wales Healthcare NHS Trust
1979-1984 Senior Medical Physicist, South Glamorgan Health Authority
1976-1979 Basic Grade Medical Physicist, South Glamorgan Health Authority
Honours and awards
2014 Member of the Order of the British Empire (MBE) for services to the NHS in Wales and overseas
2009 Honorary Member, Royal College of Radiologists (HonMRCR)
2005 Honorary Certificate of Competence, Bone Densitometry Practitioner, National Osteoporosis Society
1983 Medical Fellowship, Council of Europe
1972 Marion Bradley Physics Prize, Jesus College, Oxford
1967 Carmarthenshire Schools Representative, London Youth Science Fortnight
Professional memberships
2013 Fellow, Society for Radiological Protection (FSRP)
2008 Chartered Radiation Protection Professional, Society for Radiological Protection (CRadP)
2004 Chartered Scientist, Science Council (CSci)
2002 Registered Clinical Scientist, Health and Care Professions Council
1994 Fellow, Institute of Physics (FInstP)
1991 Cert. of Competence, Radiation Protection Adviser, Institution of Physics & Engineering in Med. & Biol.
1990 Fellow, Institute of Physics and Engineering in Medicine (FIPEM)
1985 Chartered Physicist, Institute of Physics (CPhys)
Academic positions
2014 External Examiner (PhD), University of Nottingham
2011-Present Honorary Professor, School of Engineering, Cardiff University
2010 External Examiner (MD), University of Colombo, Sri Lanka
2009-2013 Visiting Lecturer (BSc), University of Swansea
2008-Present International Adviser, SRM University, Chennai (Madras), India
2008-2009 Ext. Examiner (MRad/MMed), Univ. of Malaya, National Univ. of Malaysia and Science Univ. of Malaysia
2001-Present Internal Examiner (PhD), Schools of Engineering and Medicine, Cardiff University
1996 External Examiner (PhD), University of Swansea
1996 External Examiner (MPhil), University of Glamorgan
1990-2016 Honorary Lecturer and Internal Examiner (BSc), School of Physics and Astronomy, Cardiff University
1989 External Examiner (PhD), University of Leeds
Publications
2020
- Fenwick, A. J.et al. 2020. Absolute standardisation and determination of the half-life and gamma emission intensities of 89Zr. Applied Radiation and Isotopes 166, article number: 109294. (10.1016/j.apradiso.2020.109294)
- Muller, I.et al. 2020. CATS II long-term anthropometric and metabolic effects of maternal sub-optimal thyroid function in offspring and mothers. Journal of Clinical Endocrinology and Metabolism 105(7), article number: dgaa129. (10.1210/clinem/dgaa129)
2018
- Collins, J. T.et al. 2018. The value of physical performance measurements alongside assessment of sarcopenia in predicting receipt and completion of planned treatment in non-small cell lung cancer: an observational exploratory study. Supportive Care in Cancer 26, pp. 119-127. (10.1007/s00520-017-3821-6)
2016
- Elmasri, K.et al. 2016. Automatic detection and quantification of abdominal aortic calcification in dual energy X-ray absorptiometry. Procedia Computer Science 96, pp. 1011-1021. (10.1016/j.procs.2016.08.116)
2015
- Collins, J.et al. 2015. Association of sarcopenia and observed physical performance with attainment of multidisciplinary team planned treatment in non-small cell lung cancer: an observational study protocol. BMC Cancer 15, pp. 401-413., article number: 544. (10.1186/s12885-015-1565-6)
2014
- Willis, G. R.et al. 2014. Detailed characterisation of circulatory nitric oxide and free radical indices-is there evidence for abnormal cardiovascular homeostasis in young women with polycystic ovary syndrome?. BJOG: An International Journal of Obstetrics and Gynaecology 121(13), pp. 1596-1603. (10.1111/1471-0528.12834)
- Rees, E.et al. 2014. Central arterial stiffness and diastolic dysfunction are associated with insulin resistance and abdominal obesity in young women but polycystic ovary syndrome does not confer additional risk. Human Reproduction 29(9), pp. 2041-2049. (10.1093/humrep/deu180)
- Marshall, C.et al. 2014. Quantification of the activity of tritium produced during the routine synthesis of 18F fluorodeoxyglucose for positron emission tomography. Journal of Radiological Protection 34(2), pp. 435-444. (10.1088/0952-4746/34/2/435)
2012
- Davis, N. L.et al. 2012. Body composition in children with type 1 diabetes in the first year after diagnosis: relationship to glycaemic control and cardiovascular risk. Archives of Disease in Childhood 97(4), pp. 312-315. (10.1136/archdischild-2011-300626)
- Bell, W.et al. 2012. ACTN3 genotypes of Rugby Union players: distribution, power output and body composition. Annals of Human Biology 39(1), pp. 19-27. (10.3109/03014460.2011.632648)
2010
- Bell, W.et al. 2010. ACE ID genotype and leg power in Rugby Union players. Journal of Sports Medicine and Physical Fitness 50(3), pp. 350-355.
2009
- Watson, S.et al. 2009. Can abdominal bioelectrical impedance refine the determination of visceral fat from waist circumference?. Physiological Measurement 30(7), pp. N53-N58. (10.1088/0967-3334/30/7/N01)
2008
- Bolton, C. E.et al. 2008. What community measurements can be used to predict bone disease in patients with COPD?. Respiratory Medicine 102(5), pp. 651-657. (10.1016/j.rmed.2007.12.027)
2007
- Sabit, R.et al. 2007. Arterial stiffness and osteoporosis in chronic obstructive pulmonary disease. American Journal of Respiratory and Critical Care Medicine 175(12), pp. 1259-65. (10.1164/rccm.200701-067OC)
- Chudleigh, R. A.et al. 2007. How reliable is estimation of glomerular filtration rate at diagnosis of type 2 diabetes?. Diabetes care 30(2), pp. 300-5. (10.2337/dc06-1688)
2006
- Bell, W.et al. 2006. Perception of effort at low and moderate intensity exercise in survivors of childhood acute lymphoblastic leukaemia. Annals of Human Biology 33(3), pp. 357-371. (10.1080/03014460600687382)
2005
- Morris, R. J.et al. 2005. The effect of intermittent pneumatic compression on the bone uptake of 99mTc-labelled methylene diphosphonate in the lower limb. Archives of Orthopaedic and Trauma Surgery 125(5), pp. 348-354. (10.1007/s00402-005-0811-9)
2004
- Bolton, C. E.et al. 2004. Associated loss of fat-free mass and bone mineral density in chronic obstructive pulmonary disease. American Journal of Respiratory and Critical Care Medicine 170(12), pp. 1286-1293. (10.1164/rccm.200406-754OC)
- Davies, J. H.et al. 2004. Osteopenia, excess adiposity and hyperleptinaemia during 2 years of treatment for childhood acute lymphoblastic leukaemia without cranial irradiation. Clinical Endocrinology 60(3), pp. 358-65. (10.1111/j.1365-2265.2003.01986.x)
- Warner, J.et al. 2004. Pitfalls in the assessment of body composition in survivors of acute lymphoblastic leukaemia. Archives of Disease in Childhood 89(1), pp. 64-68.
2002
- Banerjee, I.et al. 2002. Osteogenesis imperfecta and intravenous pamidronate. Archives of Disease in Childhood 87(6), pp. 562-563. (10.1136/adc.87.6.562-a)
- Warner, J. T.et al. 2002. Body composition of long-term survivors of acute lymphoblastic leukaemia. Medical and Pediatric Oncology 38(3), pp. 165-172. (10.1002/mpo.1304)
- Ionescu, A.et al. 2002. Pulmonary function, body composition, and protein catabolism in adults with cystic fibrosis. American journal of respiratory and critical care medicine 165(4), pp. 495-500.
Supervision
I am interested in co-supervising postgraduate research students in the following disciplines:
- Medical radiation physics and engineering
- Medical applications of radioactivity
- Medical imaging physics and engineering
- Nuclear medicine physics
- Measurement of bone density and body composition
Current supervision
Past projects
I was a co-supervisor for the following Cardiff University PhD projects:
- Identification and quantification of radioactive impurities in medical radionuclides - Ansam Al-Obaidi (awarded 2019)
- A robust technique for the detection and quantification of abdominal aortic calcification using dual-energy x-ray absorptiometry - Karima Elmasri (awarded 2018)
- Calibration of a scanning whole body counter for measurement of the activity of gamma emitting radionuclides in the human body – Thaer Al‑Musawi (awarded 2018)
- Comparison of peripheral quantitative computed tomography and magnetic resonance imaging for tissue characterisation in the gastrocnemius muscle – Fahad Al-Gohani (awarded 2017)
- Monte Carlo simulation applied to uncertainties in iodine-123 assay and thyroid uptake measurement - Matthew Talboys (awarded 2016)
- The influence of accurate attenuation correction on quantitative gamma camera imaging - Helen Blundell (awarded 2013)
- Effect of intra-abdominal fat on the accuracy of DXA lumbar spine bone mineral density measurement using DXA body composition measurements - Sarah Darlington (awarded 2013)
- Measurement of caesium-137 in the human body using a whole body counter - Elkhadra Elessawi (awarded 2011)