Angelica Perez-Andujar

Angelica Perez-Andujar

Angelica Perez-Andujar, Ph.D.

Assistant Professor
Division of Physics
Department of Radiation Oncology

University of California San Francisco, Box 0226
505 Parnassus Avenue, L08-D
San Francisco, CA 94143
Phone: 415 514-8536
Fax: 415 353-8679
Email: Angelica.PerezAndujar[at]

Make A Gift Button

Professional Focus

Dr. Angélica Pérez-Andújar devoted many of her years to study the neutron doses that a patient might receive during proton therapy. Working in proton therapy lead her to the area of risk assessment after radiotherapy. Specifically, secondary effects due to radiation several years after a patient is treated. In the field of risk assessment she is interested in studying how different radiotherapy modalities used to treat the same type of cancer in pediatric patients can impact secondary effects after radiotherapy. Her interest resides primarily in comparative effectiveness of conventional radiotherapy, like 3D conformal photon therapy, with more modern techniques like intensity-modulated radiotherapy, radiosurgery and proton therapy among others.

She is also interested in the implementation, commissioning and test of new radiotherapy treatment modalities. Better localized treatments that impart higher doses to the tumor and lower doses to adjacent structures may improve patient outcomes and decrease late effects after radiotherapy. In addition, she has been working in the area of quality assurance for intensity modulated radiotherapy. Quality assurance is essential in keeping every patient treated with radiotherapy safe and ensures the delivery of the expected doses during the treatment. Quality assurance can alert the treatment team to inconsistencies in the plan, the physics models used for the treatment plan or the machine performance. She also is contributing to the development of such quality assurance tests and in the evaluation of current methods.



University of Puerto Rico, Mayaguez, magna cum laude

BS Physics

University of Wisconsin,

Ph.D. Medical Physics

University of Texas, MDACC, Houston

Postdoctoral Fellow Medical Physics


Professional Experience

2013-present UCSF Assistant Professor Radiation Oncology
2011-2013 UCSF Clinical Instructor Radiation Oncology
2010-2011 UCSF Assistant Hospital Physicist Radiation Oncology


Awards & Honors

2000 The National Dean’s Honor’s List, University of Puerto Rico, Mayagüez, PR
2004 Advance Opportunity Fellowship, University of Wisconsin, Madison, WI
2005 University of Wisconsin Radiological Sciences Training Program Fellow, Madison, WI
2006 Ruth L. Kirschstein National Research Service Award Individual Predoctoral Fellowship Program (award number F31 CA119943-03)
2008 Session Best Paper, ICRS11/RPSD Topical Meeting


Recent Significant Publications :

Pérez-Andújar, A, DeLuca, Jr, PM, Thornton, A, Fitzek, MM, Hecksel, D, and Farr, J, Microdosimetric measurements for neutron dose determination during proton therapy. Radiation Protection Dosimetry Journal, 2012 Feb 14.

Zhang, R, Pérez-Andújar, A, Fontenot, JD, Taddei, PJ, Newhauser, WD, An analytic model of neutron ambient dose equivalent and equivalent dose for proton radiotherapy, Phys. Med. Biol. 55(23): 6975-85, 2010.

Pérez-Andújar, A, DeLuca, Jr, PM, Thornton, A, Fitzek, MM, Hecksel, D, and Farr, J, Microdosimetric Measurements for Proton Therapy Applications, Trans. Am. Nucl. Soc., 101: 1093-4, 2009.

Pérez-Andújar, A, Newhauser, WD and DeLuca, Jr., PM. Contribution to Neutron Fluence and Neutron Absorbed Dose from Double Scattering Proton Therapy System Components, Nuclear Technology, 168: 728-735, 2009.

Pérez-Andújar, A, Newhauser, WD, and DeLuca Jr, PM. Neutron production from beam modifying devices in a modern double scattering proton therapy beam delivery system, Phys. Med. Biol. 54: 993-1008, 2009.

Sengbusch, E, Pérez-Andújar, A, DeLuca Jr., PM, and Mackie, TR. Maximum proton kinetic energy and patient-generated neutron fluence considerations in proton beam arc delivery radiation therapy, Med. Phys. 36(2): 364-72, 2009.

Pérez-Andújar, A, DeLuca Jr., PM, and Newhauser, WD. Neutron Production in a Double Scatterer Passive System, Trans. Am. Nucl. Soc. 99: 580, 2008.