Perelman School of Medicine/ Faculty Search/ Christopher G. Ainsley

Christopher G. Ainsley, PhD

Assistant Professor of Radiation Oncology at the Hospital of the University of Pennsylvania

Department: Radiation Oncology

Contact information

Hospital of the University of Pennsylvania
Department of Radiation Oncology
Perelman Center for Advanced Medicine
TRC-2 West
3400 Civic Center Boulevard
Philadelphia, PA 19104

Office: 215-615-0946

Email:
ainsley@uphs.upenn.edu

Education:
B.A. (Natural Sciences)
University of Cambridge, UK, 1999.
M.Sci. (Experimental & Theoretical Physics)
University of Cambridge, UK, 1999.
M.A. (Natural Sciences)
University of Cambridge, UK, 2002.
Ph.D. (Experimental Particle Physics)
University of Cambridge, UK, 2003.

Permanent link

Perelman School of Medicine > Faculty > Search

Description of Research Expertise

Proton therapy equipment and techniques
Monte Carlo simulation
Optimization algorithms

Description of Clinical Expertise

Proton therapy treatment planning system commissioning
Proton therapy treatment planning
Intensity-modulated radiation therapy (IMRT) treatment planning
Brachytherapy treatment planning

Selected Publications

C Ainsley, L Lin, J McDonough: Optimization of the modelling of longitudinal dose distributions for double-scattered proton beams in a commercially-available treatment planning system. Phys. Med. Biol. 58(11): N145-N155, May 2013.

L Lin, C Ainsley, T Mertens, O De Wilde, P Talla, J McDonough: A novel technique for measuring the low-dose envelope of pencil beam scanning spot profiles. Phys. Med. Biol. May 2013 Notes: in press.

E Diffenderfer, C Ainsley, M Kirk, J McDonough, R Maughan: Reply to Comment on "Comparison of secondary neutron dose in proton therapy resulting from the use of a tungsten alloy multileaf collimator or a brass collimator system" Med. Phys. 39(4): 2306-2309, April 2012.

E Diffenderfer, C Ainsley, M Kirk, J McDonough, R Maughan: Comparison of secondary neutron dose in proton therapy resulting from the use of a tungsten alloy multileaf collimator or a brass collimator system. Med. Phys. 38(11): 6248-6256, November 2011.

J Christodouleas, R Forrest, C Ainsley, Z Tochner, S Hahn, E Glatstein: Short-term and long-term health risk of nuclear power plant accident. Encyclopedia of Radiation Oncology. L Brady, T Yaeger (eds.). Springer, New York, Page: 782-789, September 2012.

J Christodouleas, R Forrest, C Ainsley, Z Tochner, S Hahn, E Glatstein: Short-term and long-term health risks of nuclear-power-plant accidents. New Engl. J. Med. 364(24): 2334-2341, June 2011.

C Ainsley, J McDonough: Physics considerations in proton therapy. Radiation Medicine Rounds: Proton Therapy. C Thomas, J Metz (eds.). Demos Medical Publishing LLC, 1(3): 415-440, December 2010.

S Avery, C Ainsley, R Maughan, J McDonough : Analytical shielding calculations for a proton therapy facility. Radiat. Protect. Dosim. 131(2): 167-179, August 2008.

L Lin, C Ainsley, D Dolney, M Closset, F Dessy, O De Wilde, R Maughan, J McDonough: Proton pencil beam spot scanning phase space in the IBA (Ion Beam Applications, SA, Louvain-La-Neuve, Belgium) system and the clinical implications for superficial targets. 54th Annual Meeting of The American Association of Physicists in Medicine, Charlotte, NC July 2012 Notes: Poster presentation.

L Lin, C Ainsley, D Dolney, M Closset, F Dessy, O De Wilde, J McDonough: Quality assurance of proton spot scanning for IBA (Ion Beam Applications, SA, Louvain-La-Neuve, Belgium) dedicated pencil beam and universal nozzles. 51st Meeting of the Particle Therapy Co-Operative Group (PTCOG 51), Seoul, South Korea May 2012 Notes: Oral presentation.

J Shen, L Lin, C Ainsley, S Both, J McDonough, T Zhu: Modeling of in-air output ratios for double-scattered SOBP proton beams using an advanced parameter fitting algorithm. 50th Meeting of the Particle Therapy Co-Operative Group (PTCOG 50), Philadelphia, PA May 2011 Notes: Poster presentation.

C Ainsley, S Avery, E Diffenderfer, D Dolney, M Kirk, L Lin, R Maughan, J McDonough, J Metz, R Scheuermann, Z Tochner: Design, testing and characterization of a multileaf collimator for proton therapy. 50th Meeting of the Particle Therapy Co-Operative Group (PTCOG 50), Philadelphia, PA May 2011 Notes: Oral presentation.

E Diffenderfer, C Ainsley, J McDonough, R Maughan: Comparison of secondary neutron dose in proton therapy resulting from the use of a tungsten multileaf collimator or a brass aperture system. 50th Meeting of the Particle Therapy Co-Operative Group (PTCOG 50), Philadelphia, PA May 2011 Notes: Poster presentation.

M Kirk, C Ainsley, D Dolney, J McDonough: Optimizing Monte Carlo parameters to fit proton-beam measurements with a tungsten multileaf collimator. 50th Meeting of the Particle Therapy Co-Operative Group (PTCOG 50), Philadelphia, PA May 2011 Notes: Poster presentation.

L Lin, J Shen, C Ainsley, T Zhu, R Slopsema, J McDonough: Implementing the MGH dose-per-MU model for double-scattered beams: overcoming the modulation uncertainty. 50th Meeting of the Particle Therapy Co-Operative Group (PTCOG 50), Philadelphia, PA May 2011 Notes: Poster presentation.

M Kirk, C Ainsley, J McDonough: Comparison of a proton multileaf collimator with non-divergent brass and tungsten apertures. 52nd Annual Meeting of The American Association of Physicists in Medicine, Philadelphia, PA July 2010 Notes: Poster presentation.

L Lin, J McDonough, C Ainsley: The use of extended gamma criteria to report discrepancy between Eclipse-modeled and multileaf-collimator-delivered proton dose distribution. 52nd Annual Meeting of The American Association of Physicists in Medicine, Philadelphia, PA July 2010 Notes: Poster presentation.

W Zou, D Dolney, C Ainsley, S Surti, K Teo, J McDonough, J Karp: PET image simulation of isotopes produced in patient during proton therapy. 52nd Annual Meeting of The American Association of Physicists in Medicine, Philadelphia, PA July 2010 Notes: Poster presentation.

A Ayan, C Ainsley, K Shahnazi, E Garver, S Both, K Oliver, J McDonough: Stopping power for tissue-equivalent materials and Hounsfield numbers for proton radiation treatment planning: calculation and measurements. 52nd Annual Meeting of The American Association of Physicists in Medicine, Philadelphia, PA July 2010 Notes: Poster presentation.

E Diffenderfer, R Maughan, C Ainsley, S Avery, J McDonough: Determination of neutron close due to a therapeutic proton beam incident on a closed tungsten multileaf collimator using the dual hydrogenous/non-hydrogenous ionization chamber method. 51st Annual Meeting of The American Association of Physicists in Medicine, Anaheim, CA July 2009 Notes: Oral presentation.

C Ainsley, S Avery, E Diffenderfer, D Dolney, L Lin, J McDonough, J Metz, R Scheuermann, Z Tochner: Design and performance of a multileaf collimator for proton therapy. 48th Meeting of the Particle Therapy Co-Operative Group (PTCOG 48), Heidelberg, Germany September 2009 Notes: Poster presentation.

C Ainsley, R Scheuermann, S Avery, D Dolney, R Maughan, J McDonough: Monte Carlo simulation and development of a multileaf collimator for proton therapy. 51st Annual Meeting of The American Association of Physicists in Medicine, Anaheim, CA July 2009 Notes: Oral presentation.

C Ainsley, S Both: Clinical implementation of the OneDosePlus (TM) MOSFET detector for in vivo dose measurement. 51st Annual Meeting of The American Association of Physicists in Medicine, Anaheim, CA July 2009 Notes: Poster presentation.

D Goulart, R Maughan, J McDonough, P Bloch, S Avery, C Ainsley: Perturbation to dose distribution caused by utilizing an MLC instead of a brass aperture in passive scattering proton therapy. 49th Annual Meeting of The American Association of Physicists in Medicine, Minneapolis, MN July 2007 Notes: Poster presentation.

C Ainsley, L Fu, M Ingram, J Novak, A Kassaee, S Both: Characterization of the OneDosePlus MOSFET detector and assessment of its suitability as an in vivo dosimeter. 50th Annual Meeting of The American Association of Physicists in Medicine, Houston, TX July 2008 Notes: Poster presentation.

M Ingram, J Novak, C Ainsley, L Fu, S Both, A Kassaee: Comparison of three commercial MOSFET dosimeters for use in total body irradiation. 50th Annual Meeting of The American Association of Physicists in Medicine, Houston, TX July 2008 Notes: Poster presentation.

C Ainsley, S Avery, R Maughan, J McDonough, J Metz, R Scheuermann, Z Tochner: Designing a multileaf collimator for proton therapy. 47th Meeting of the Particle Therapy Co-Operative Group (PTCOG 47), Jacksonville, FL May 2008 Notes: Poster presentation.

C Ainsley, S Avery, R Maughan, J McDonough, P Bloch, D Goulart, M Ingram: Investigation of the impact of leaf design on the radiation leakage through a multileaf collimator for use in proton radiotherapy. 49th Annual Meeting of The American Association of Physicists in Medicine, Minneapolis, MN July 2007 Notes: Oral presentation.

J Plastaras, C Ainsley, N Vapiwala, S Both: Effect of beam arrangement on dosimetric parameters using scattered beam proton radiotherapy (PRT) for esophageal cancer. 50th Annual Meeting of The American Society of Radiation Oncology, Boston, MA September 2008 Notes: Poster presentation.