Speller, Robert - University College London - Department of medical physics and biomedical engineering

个人简介

Originally a cosmic ray physicist Robert Speller moved into physics applied to medicine in 1973. Made Head of Radiation Physics in 1983 he has directed the development of radiation physics into three major areas - scattered photon fields, sensors and novel imaging systems.

研究领域

Robert Speller is Head of the Radiation Physics Group. His research interests cover scattered photon fields, novel sensors and detector systems and the development of imaging systems. The application areas are in medical diagnosis and treatment, security and industrial imaging.

近期论文

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Zhao, C., Vassiljev, N., Konstantinidis, A., Speller, R., & Kanicki, J. (2017). Three-dimensional cascaded system analysis of a 50 µm pixel pitch wafer-scale CMOS active pixel sensor x-ray detector for digital breast tomosynthesis. Phys Med Biol. doi:10.1088/1361-6560/aa586c Speller, R. D., Koukou, V., Martini, N., Fountos, G., Michail, C., Sotiropoulou, P., . . . Nikiforidis, G. (2016). Dual energy subtraction method for breast calcification imaging. Nuclear Instruments and Methods. Zheng, Y., Vassiljev, N., Endrizzi, M., Konstantinidis, A., Anaxagoras, T., Griffiths, J., & Speller, R. (2016). Dynamic range measurements of a dual camera complementary metal-oxide-semiconductor (CMOS) active pixel sensor (APS). 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014. doi:10.1109/NSSMIC.2014.7431181 O'Flynn, D., Crews, C., Drakos, I., Christodoulou, C., Wilson, M. D., Veale, M. C., . . . Speller, R. D. (2016). Materials identification using a small-scale pixellated x-ray diffraction system. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 49 (17), ARTN 175304. doi:10.1088/0022-3727/49/17/175304 Payne, C., Sellin, P. J., Ellis, M., Duroe, K., Jones, A., Joyce, M., . . . Speller, R. (2016). Neutron/gamma pulse shape discrimination in EJ-299-34 at high flux. 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015. doi:10.1109/NSSMIC.2015.7581994 Corcoran, H. C., Brown, S. B., Robson, S., Speller, R. D., & McCarthy, M. B. (2016). OBSERVATIONS ON THE PERFORMANCE OF X-RAY COMPUTED TOMOGRAPHY FOR DIMENSIONAL METROLOGY. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLI-B5, 25-31. doi:10.5194/isprs-archives-XLI-B5-25-2016 Randall, G., Ellis, M., Duroe, K., Jones, A., Joyce, M., Payne, C., . . . Speller, R. (2016). RadICAL stack: A localisation method for dynamic gamma/neutron fields. 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015. doi:10.1109/NSSMIC.2015.7581900 Calvert, N. (2016). Time-of-flight Compton scatter imaging for cargo security (Doctoral dissertation). University College London. Zhao, C., Konstantinidis, A. C., Zheng, Y., Anaxagoras, T., Speller, R. D., & Kanicki, J. (2015). 50 mu m pixel pitch wafer-scale CMOS active pixel sensor x-ray detector for digital breast tomosynthesis. PHYSICS IN MEDICINE AND BIOLOGY, 60 (23), 8977-9001. doi:10.1088/0031-9155/60/23/8977 Uroukov, I., & Speller, R. (2015). A Preliminary Approach to Intelligent X-ray Imaging for Baggage Inspection at Airports. Signal Processing Research, 4 (0), 1. doi:10.14355/spr.2015.04.001 Speller, R., Abuchi, S., Zheng, Y., Vassiljev, N., Konstantinidis, A., & Griffiths, J. (2015). An evaluation of the clinical potential of tissue diffraction studies. INTERNATIONAL CONFERENCE ON BIO-MEDICAL INSTRUMENTATION AND RELATED ENGINEERING AND PHYSICAL SCIENCES (BIOMEP 2015), 637. IOP PUBLISHING LTD. doi:10.1088/1742-6596/637/1/012026 Hadjipanteli, A., Kourkoumelis, N., Fromme, P., Huang, J., & Speller, R. D. (2015). Evaluation of the 3D spatial distribution of the Calcium/Phosphorus ratio in bone using computed-tomography dual-energy analysis. PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 32 (1), 162-168. doi:10.1016/j.ejmp.2015.11.004 Zheng, Y., Vassiljev, N., Konstantinidis, A., Griffiths, J., & Speller, R. (2015). Limit of Detection in X-ray Diffraction Measurements of Tissue Equivalent Samples. INTERNATIONAL CONFERENCE ON BIO-MEDICAL INSTRUMENTATION AND RELATED ENGINEERING AND PHYSICAL SCIENCES (BIOMEP 2015), 637. IOP PUBLISHING LTD. doi:10.1088/1742-6596/637/1/012037 Crews, C. C. E., O'Flynn, D., Sidebottom, A., & Speller, R. D. (2015). Quantitative energy-dispersive X-ray diffraction for identification of counterfeit medicines: a preliminary study. NEXT-GENERATION SPECTROSCOPIC TECHNOLOGIES VIII, 9482. SPIE-INT SOC OPTICAL ENGINEERING. doi:10.1117/12.2176738 Calvert, N., Betcke, M. M., Morton, E. J., & Speller, R. D. (n.d.). Reconstruction of electron density from time resolved in-plane Compton backscatter measurements. Proceedings of the 13th international meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. Calvert, N., Betcke, M. M., Morton, E. J., & Speller, R. (2015). Reconstruction of electron density from time resolved in-plane Compton backscatter measurements. Proceedings of the 13th Fully Three Dimensional Image Reconstruction in Radiology and Nuclear Medicine. Calvert, N., Betcke, M. M., Cresswell, J. R., Deacon, A. N., Gleeson, A. J., Judson, D. S., . . . Speller, R. D. (2015). The Use of Short and Wide X-ray Pulses for Time-of-Flight X-ray Compton Scatter Imaging in Cargo Security. SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV, 9456. SPIE-INT SOC OPTICAL ENGINEERING. doi:10.1117/12.2176832 Randall, G. L., Iglesis, E., Wong, H. F., & Speller, R. S. (2014). A method of providing directionality for ionising radiation detectors - RadICAL. Journal of Instrumentation, 9 (10). doi:10.1088/1748-0221/9/10/P10011 Diemoz, P. C., Endrizzi, M., Hagen, C. K., Rau, C., Bravin, A., Speller, R. D., . . . Olivo, A. (2014). Edge illumination X-ray phase-contrast imaging: nanoradian sensitivity at synchrotrons and translation to conventional sources. Journal of Physics: Conference Series, 499, 012006-1-012006-9. UK: IOP. doi:10.1088/1742-6596/499/1/012006 Hadjipanteli, A., Kourkoumelis, N., & Speller, R. (2014). Evaluation of CT-DEA performance on Ca/P ratio assessment in bone apatite using EDX. X-Ray Spectrometry. doi:10.1002/xrs.2551 Calvert, N., Betcke, M. M., Deacon, A. N., Gleeson, A. J., Hill, C., McIntosh, P. A., . . . Speller, R. D. (2014). Feasibility Study of Time-of-Flight Compton Scatter Imaging Using Picosecond Length X-Ray Pulses. IEEE Trans. Nucl. Sci., 61, 3701-3710. Kavanagh, A., Olivo, A., Speller, R., & Vojnovic, B. (2014). Feasibility testing of a pre-clinical coded aperture phase contrast imaging configuration using a simple fast Monte Carlo simulator. BIOMEDICAL OPTICS EXPRESS, 5 (1), 93-105. doi:10.1364/BOE.5.5.000093 Endrizzi, M., Diemoz, P. C., Millard, T. P., Jones, J. L., Speller, R. D., Robinson, I. K., & Olivo, A. (2014). Hard X-ray dark-field imaging with incoherent sample illumination. Applied Physics Letters, 104 (2), 024106-1-024106-4. doi:10.1063/1.4861855 Munro, P. R. T., Endrizzi, M., Diemoz, P. C., Hagen, C. K., Szafraniec, M. B., Millard, T. P., . . . Olivo, A. (2014). Medicine, material science and security: the versatility of the coded-aperture approach. Phil. Trans. R. Soc. A, 372 (2010), 20130029-1-20130029-10. doi:10.1098/rsta.2013.0029 Esposito, M., Anaxagoras, T., Konstantinidis, A. C., Zheng, Y., Speller, R. D., Evans, P. M., . . . Wells, K. (2014). Performance of a novel wafer scale CMOS active pixel sensor for bio-medical imaging. Physics in Medicine and Biology, 59 (13), 3533-3554. doi:10.1088/0031-9155/59/13/3533