Publications

2024

• K. Hellier, E. Enlow, S. Montazeri, M. Esmaeelpour, and S. Abbaszadeh, “Angle-Dependent Photoinduced Changes of Near-Infrared Transmission in Amorphous Selenium Films,” IEEE Transactions on Electron Devices, vol. 71, no. 8, pp. 4808–4813, Aug. 2024, doi: 10.1109/TED.2024.3419769.
• E. Enlow, Y. Wang, G. Shoop, and S. Abbaszadeh, “Performance Investigations of Two Channel Readout Configurations on the Cross-Strip Cadmium Zinc Telluride Detector,” IEEE Transactions on Radiation and Plasma Medical Sciences, pp. 1–1, Jul. 2024, doi: 10.1109/TRPMS.2024.3411522.
• G. Shoop and S. Abbaszadeh, “Combining PET and Compton imaging with edge-on CZT detectors for enhanced diagnostic capabilities,” Advances in Radiotherapy & Nuclear Medicine, vol. 2, no. 2, Art. no. 2, Jun. 2024, doi: 10.36922/arnm.3330.
• Y. Zhu et al., “Optimization-derived blood input function using a kernel method and its evaluation with total-body PET for brain parametric imaging,” NeuroImage, vol. 293, p. 120611, Jun. 2024, doi: 10.1016/j.neuroimage.2024.120611.
• G. Shoop, G. Romanchek, M. Kupinski, M. King, L. Furenlid, and S. Abbaszadeh, “Simulation and reconstruction of proposed CZT based PET-prompt gamma imaging system,” Journal of Nuclear Medicine, vol. 65, no. supplement 2, pp. 242221–242221, Jun. 2024.
  
• G. Romanchek, G. Wang, and S. Abbaszadeh, “PET dual-system 3D list-mode image reconstruction via surrogate-MLEM,” Journal of Nuclear Medicine, vol. 65, no. supplement 2, pp. 242320–242320, Jun. 2024.
  
• K. Kalluri et al., “Simulated imaging of an anthropomorphic model of the choroid plexus with brain-dedicated MPH-SPECT,” Journal of Nuclear Medicine, vol. 65, no. supplement 2, pp. 241749–241749, Jun. 2024.
• K. Hellier, M. McGrath, and S. Abbaszadeh, “Evaluating the Effects of Breaking Vacuum During the Fabrication of Amorphous Selenium Detectors,” IEEE Sensors Journal, vol. 24, no. 12, pp. 19000–19006, Jun. 2024, doi: 10.1109/JSEN.2024.3388972.
  
• F. T. Ardebili, M. Dadgar, and S. Abbaszadeh, “Assessment of CZT Dual Panel PET as total-body imaging in small animal with high spatial resolution and multi-sample capability,” Journal of Nuclear Medicine, vol. 65, no. supplement 2, pp. 241928–241928, Jun. 2024.
  
• G. Romanchek, G. Shoop, K. Gholami, E. Enlow, and S. Abbaszadeh, “Quantum Entanglement Filtering: A PET Feasibility Study in Imaging Dual-Positron and Prompt Gamma Emission via Monte Carlo Simulation,” IEEE Transactions on Radiation and Plasma Medical Sciences, pp. 1–1, Apr. 2024, doi: 10.1109/TRPMS.2024.3388872.
• K. Hellier, I. Mollov, A. Swaby, P. Pryor, and S. Abbaszadeh, “Evaluation of a Large Area, 83 μm Pixel Pitch Amorphous Selenium Indirect Flat Panel Detector,” IEEE Transactions on Electron Devices, vol. 71, no. 1, pp. 676–680, Jan. 2024, doi: 10.1109/TED.2023.3338131.

2023

• G. Romanchek, G. Shoop, and S. Abbaszadeh, “Application of quantum entanglement induced polarizationfor dual-positron and promptgamma imaging,” Bio-Algorithms and Med-Systems, vol. 19, no. 1, pp. 9–16, Dec. 2023, doi: 10.5604/01.3001.0054.1817..
• S. Abbaszadeh, M. Kupinski, and L. Furenlid, “βγ imaging: simultaneous detection of single-gamma and position-annihilation with CZT-based PET scanner,” Journal of Nuclear Medicine, vol. 64, no. supplement 1, pp. P1282–P1282, Jun. 2023.
• K. Hellier, A. Swaby, J. Ott, and S. Abbaszadeh, “Performance Evaluation of an Amorphous Selenium Photodetector at High Fields for Application Integration,” IEEE Sensors Journal, vol. 23, no. 12, pp. 12759–12766, Jun. 2023, doi: 10.1109/JSEN.2023.3273463.
• K. Hellier, D. A. Stewart, J. Read, R. Sfadia, and S. Abbaszadeh, “Tuning Amorphous Selenium Composition with Tellurium to Improve Quantum Efficiency at Long Wavelengths and High Applied Fields,” ACS Appl. Electron. Mater., vol. 5, no. 5, pp. 2678–2685, May 2023, doi: 10.1021/acsaelm.3c00150.
• E. Enlow and S. Abbaszadeh, “State-of-the-art challenges and emerging technologies in radiation detection for nuclear medicine imaging: A review,” Frontiers in Physics, Vol. 11 (2023) https://doi.org/10.3389/fphy.2023.1106546.
• E. Enlow, M. Diba, J. Clayton, B. Harris and S. Abbaszadeh, “Impact of Flexible Circuit Bonding and System Integration on Energy Resolution of Cross-strip CZT Detectors,” in IEEE Transactions on Radiation and Plasma Medical Sciences, doi: 10.1109/TRPMS.2023.3256406.
• M. Rooks, S. Abbaszadeh, J. Asaadi1, M. Febbraro, R.W. Gladen1, E. Gramellini, K. Hellier, F. Maria Blaszczyk4 and A.D. McDonald. “Development of a novel, windowless, amorphous selenium based photodetector for use in liquid noble detectors.” Journal of Instrumentation, Vol. 18, P01029 (2023).

2022

• Romanchek, Gregory, and Shiva Abbaszadeh. “Investigating the Interpretability of ML-Guided Radiological Source Searches.” IEEE Access, vol. 10, pp. 78159-78167 (2022), doi: 10.1109/ACCESS.2022.3193142.
• Wang, Yuli, and Shiva Abbaszadeh. “Optical Properties Modulation: A New Direction for the Fast Detection of Ionizing Radiation in PET.” Advanced X-Ray Radiation Detection:: Medical Imaging and Industrial Applications (2022): 149.

2021

• Hellier, Kaitlin, Emmie Benard, and Shiva Abbaszadeh. “Recent Progress in the Development of a-Se/CMOS Sensors for X-ray Detection.” Quantum Beam Science, vol. 5 is. 4 (2021): 29.
• Wang, Yuli, Ryan Herbst, and Shiva Abbaszadeh. “Development and Characterization of Modular Readout Design for Two-Panel Head-and-Neck Dedicated PET System Based on CZT Detectors.” IEEE Transactions on Radiation and Plasma Medical Sciences 6, no. 5 (May 2022): 517–21. https://doi.org/10.1109/TRPMS.2021.3111547.
• Romanchek, Gregory R., and Shiva Abbaszadeh. “Stopping Criteria for Ending Autonomous, Single Detector Radiological Source Searches.” PLOS ONE 16, no. 6 (June 17, 2021): e0253211. https://doi.org/10.1371/journal.pone.0253211.
• Wang, Yuli, Ryan Herbst, and Shiva Abbaszadeh. “Electronic Noise Characterization of a Dedicated Head-and-Neck Cancer PET Based on CZT.” Journal of Nuclear Medicine 62, no. supplement 1 (May 1, 2021): 1154–1154.
• Wang, Yuli, Li Tao, Shiva Abbaszadeh, and Craig Levin. “Further investigations of a radiation detector based on ionization-induced modulation of optical polarization.” Physics in Medicine & Biology 66.5 (2021): 055013.
• Farahmandzadeh, Maryam, Steven Marcinko, Camilo Jaramillo, Ming K. Cheng, Davide Curreli, and Shiva Abbaszadeh. “Simulation and Experimental Validation of the Uniformity of Thermally Evaporated Amorphous Selenium Films for Large-Area Imaging and Radiation Detection Applications.” IEEE Transactions on Electron Devices 68.2 (2021): 626-631.

2020

2020

• Li, Mohan, Yuli Wang, and Shiva Abbaszadeh. “Development and initial characterization of a high-resolution PET detector module with DOI.” Biomedical Physics & Engineering Express 6.6 (2020): 065020.
• Zhang, Hengquan, Yuli Wang, Jinyi Qi, and Shiva Abbaszadeh. “Penalized maximum-likelihood reconstruction for improving limited-angle artifacts in a dedicated head and neck PET system.” Physics in Medicine & Biology 65.16 (2020): 165016.
• Romanchek, Gregory R., Zheng Liu, and Shiva Abbaszadeh. “Kernel-based Gaussian process for anomaly detection in sparse gamma-ray data.” Plos one 15.1 (2020): e0228048.
• Li, Mohan, Brett Yockey, and Shiva Abbaszadeh. “Design study of a dedicated head and neck cancer PET system.” IEEE transactions on radiation and plasma medical sciences 4.4 (2020): 489-497.
• Romanchek, Gregory, Yuli Wang, Harsha Marupudi, and Shiva Abbaszadeh.”Performance of Optical Coupling Materials in Scintillation Detectors Post Temperature Exposure.” Sensors 20.21 (2020): 6092.

2019

• Huang, Heyuan, and Shiva Abbaszadeh. “Recent developments of amorphous selenium-based X-ray detectors: a review.” IEEE Sensors Journal 20.4 (2019): 1694-1704.
• Li, Mohan, and Shiva Abbaszadeh. “Depth-of-interaction study of a dual-readout detector based on TOFPET2 application-specific integrated circuit.” Physics in Medicine & Biology 64.17 (2019): 175008.
• Yang, Sheng, Mohan Li, Michael Reed, James Hugg, Henry Chen, and Shiva Abbaszadeh. “Effect of CZT system characteristics on Compton scatter event recovery.” IEEE transactions on radiation and plasma medical sciences 4.1 (2019): 91-97.
• Li, Mohan, and Shiva Abbaszadeh. “Influence of channel configuration on bandwidth of cadmium zinc telluride detector with a cross-strip pattern.” Radiation Physics and Chemistry 155 (2019): 213-216.
• Z. Liu, and S. Abbaszadeh, “Double Q-Learning for Radiation Source Detection”, Sensors, 19(2019):960.

2018

• S. Abbaszadeh, G. Chinn, and C. S. Levin. “Positioning true coincidences that undergo inter-and intra-crystal scatter for a sub-mm resolution cadmium zinc telluride-based PET system”, Physics in Medicine & Biology, 63, no. 2 (2018): 025012.
• D. Vernekohl, S. Abbaszadeh, Y. Gu, and C. S. Levin, “Robust Detector Calibration for a Novel PET System Based on Cross-Strip CZT Detectors”, IEEE Transactions on Radiation and Plasma Medical Sciences (2018).
• Z. Liu, S. Abbaszadeh, and C.J. Sullivan, “Spatial-temporal modeling of background radiation using mobile sensor networks”, PloS one 13, no. 10 (2018): e0205092. 

2017

• S. Abbaszadeh and C. S. Levin, “A new generation small animal positron emission tomography system for molecular imaging”, Journal of Medical Imaging, vol. 4, pp. 011008, 2017.

2009 – 2016

• S. Abbaszadeh, Y. Gu, P. Reynolds, and C. S. Levin, “Characterization of a sub-assembly of 3D position sensitive cadmium zinc telluride detectors and electronics from a sub-millimeter resolution PET system,” Physics in Medicine and Biology, vol. 61, pp. 6733, 2016.
• S. Abbaszadeh, S. Ghaffari, S. Siddiquee, M. Z. Kabir, and K. S. Karim, “Characterizations of lag signal in amorphous selenium detectors,” IEEE Trans. Electron Devices, IEEE Trans. Electron Devices, vol. 63, pp. 704, 2016.
• S. Ghaffari, S. Abbaszadeh, S. Ghanbarzadeh, and K. S. Karim. “Characterization of optically sensitive amorphous selenium photodetector at high electric fields,” IEEE Trans. Electron Devices, vol. 62, pp. 2364, 2015.
• K. Wang, S. Abbaszadeh, K. S. Karim, J. Rowlands, and A. Reznik, “Reactive ion assisted deposition of cerium oxide hole-blocking contact for leakage current suppression in amorphous selenium multilayer structure,” IEEE Sensors, vol. 15, pp. 3871, 2015.
• G. P. Lindberg, T. O’Loughlin, N. Gross, A. Mishchenki, A. Reznik, S. Abbaszadeh, K. S. Karim, G. Belev, and B. A. Weinstein, “Photo-crystallization in a-Se layer structures: effects of film-substrate interface-rigidity,” Journal of Applied Physics, vol. 116, pp. 193511, 2014.
• S. Abbaszadeh, A. Tari, W. Wong, and K. S. Karim, “Enhanced dark current suppression of amorphous selenium detector with use of IGZO hole blocking layer,” IEEE Trans. Electron Devices, vol. 61, pp. 3355, 2014.
• S. Ghanbarzadeh, S. Abbaszadeh, and K. S. Karim, “Low dark current amorphous silicon metal-semiconductor-metal photodetector for digital imaging applications,” IEEE Electron Device Letters, vol. 35, pp. 235, 2014.
• G. P. Lindberg, T. O’Loughlin, N. Gross, A. Reznik, S. Abbaszadeh, K. S. Karim, G. Belev, D. M. Hunter, and B. A. Weinstein, “Raman and AFM mapping studies of photo-induced crystallization in a-Se films: Substrate-strain and thermal effects,” Canadian Journal of Physics, vol. 92, pp. 728, 2014.
• S. Abbaszadeh, C. C. Scott, O. Bubon, A. Reznik, and K. S. Karim, “Enhanced detection efficiency of direct conversion X-ray detector using polyimide as hole-blocking layer,” Scientific Reports, vol. 3, pp. 3360, 2013.
• S. Abbaszadeh, N. Allec, and K. S. Karim, “Characterization of low dark-current lateral amorphous-selenium metal-semiconductor-metal photodetectors,” IEEE Sensors, vol. 13, pp. 1452, 2013.
• S. Abbaszadeh, K. S. Karim, and V. Karanassios, “Measurement of UV from microplasma by a microfabricated amorphous selenium detector,” IEEE Trans. Electron Devices, vol. 60, pp. 880, 2013.
• N. Allec, S. Abbaszadeh, C. C. Scott, J. M. Lewin, and K. S. Karim, “Evaluating noise reduction techniques while considering anatomical noise in dual-energy contrast-enhanced mammography,” Medical Physics, vol. 40, pp. 051904, 2013.
• N. Allec, S. Abbaszadeh, C. C. Scott, J. M. Lewin, and K. S. Karim, “Including the effect of motion artifacts in noise and performance analysis of dual-energy contrast-enhanced mammography,” Physics in Medicine and Biology, vol. 57, pp. 8405, 2012.
• S. Abbaszadeh, N. Allec, S. Ghanbarzadeh, U. Shafique, and K. S. Karim, “Investigation of hole-blocking contacts for high conversion gain amorphous selenium detectors for X-ray imaging,” IEEE Trans. Electron Devices, vol. 59, pp. 2403, 2012.
• N. Allec, S. Abbaszadeh, A. Fleck, O. Tousignant, and K. S. Karim, “K-edge imaging using dual-layer and single-layer large area flat panel imagers,” IEEE Trans. Nuclear Science, vol. 59, pp. 1856, 2012.
• S. Abbaszadeh, K. Rom, O. Bubon, B. A. Weinstein, K. S. Karim, J. A. Rowlands, and A. Reznik, “The effect of the substrate on transient photodarkening in stabilized amorphous selenium,” Journal of Non-Crystalline Solids, vol. 358, pp. 2389, 2012.
• S. Abbaszadeh, N. Allec, K. Wang, and K. S. Karim, “Low dark-current lateral amorphous-selenium metal-semiconductor-metal photodetector,” IEEE Electron Device Letters, vol. 9, pp. 1263, 2011.
• N. Allec, S. Abbaszadeh, and K. S. Karim, “Single-layer and dual-layer contrast-enhanced mammography using amorphous selenium flat panel detectors,” Physics in Medicine and Biology, vol. 56, pp. 5903, 2011.
• F. Hossein-Babaei, S. Abbaszadeh, and M. Samiee, “Gas sensitive porous silver-rutile high-temperature Schottky diode on thermally oxidized titanium,” IEEE Sensors, vol. 9, pp. 237, 2009.

2024

• K. Gholami, G. Shoop, G. Romanchek, and S. Abbaszadeh, “Investigating the Effect of Time Window on Cross-Strip CZT PET System,” in 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD), Oct. 2024, pp. 1–1. doi: 10.1109/NSS/MIC/RTSD57108.2024.10654811.
• K. S. Kalluri et al., “Addition of detailed structures to the XCAT brain phantom for in-silico high-resolution multi-modal imaging system usage,” in 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD), Oct. 2024, pp. 1–2. doi: 10.1109/NSS/MIC/RTSD57108.2024.10656810.
• G. R. Romanchek, L. Caucci, G. Wang, and S. Abbaszadeh, “3D list-mode surrogate-MLEM for dual-scanner PET image reconstruction,” in 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD), Oct. 2024, pp. 1–2. doi: 10.1109/NSS/MIC/RTSD57108.2024.10655572.
• G. Shoop et al., “PET Simulation Study of Quantum Entangled Annihilation Photons for Application in Gamma-Positron Imaging,” in 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD), Oct. 2024, pp. 1–2. doi: 10.1109/NSS/MIC/RTSD57108.2024.10657853.
• M. N. Ullah, S. J. Lee, D. Innes, A. Weisenberger, S. Abbaszadeh, and C. Levin, “Imaging Studies using PhytoPET, a Positron Emission Tomography (PET) scanner developed for Plant Imaging,” in 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD), Oct. 2024, pp. 1–2. doi: 10.1109/NSS/MIC/RTSD57108.2024.10656677.
• K. Shaker, L. Shi, S. Hsieh, A. Swaby, S. Abbaszadeh, and A. S. Wang, “Synthesizing high-resolution dual-energy radiographs from coronary artery calcium CT images,” in Medical Imaging 2024: Physics of Medical Imaging, SPIE, Apr. 2024, pp. 726–729. doi: 10.1117/12.3006250.
• G. Romanchek and S. Abbaszadeh, “Harnessing quantum entanglement for enhanced accuracy in a prototype CZT PET system: a GATE simulation study,” in Medical Imaging 2024: Physics of Medical Imaging, SPIE, Apr. 2024, pp. 870–874. doi: 10.1117/12.3006050.
• K. Hellier, K. Fusari, P. Pryor, I. Mollov, and S. Abbaszadeh, “An alloyed a-Se-Te indirect flat panel imager for improved performance in a dual-layer x-ray detector,” in Medical Imaging 2024: Physics of Medical Imaging, SPIE, Apr. 2024, pp. 603–607. doi: 10.1117/12.3007292.

2023

• Akyl Swaby, Jennifer Ott, Kaitlin Hellier, Maurice Garcia-Sciveres, Shiva Abbaszadeh, “Hybrid a-Se/RD53B CMOS detector: initial studies,” Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 1246341 (7 April 2023); https://doi.org/10.1117/12.2654519
• Kaitlin Hellier, Ivan Mollov, Paul Pryor, Shiva Abbaszadeh, “A dual-layer direct/indirect flat panel detector for improved material decomposition: first studies of the indirect layer,” Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 124632E (7 April 2023); https://doi.org/10.1117/12.2653390
• Gregory Romanchek, Shiva Abbaszadeh, “Parameter selection for convex optimization time calibration for a 2-panel PET system,” Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 124633W (7 April 2023); https://doi.org/10.1117/12.2654423
• Emmanouil Nikolakakis, Gregory Romanchek, Emily Enlow, Shiva Abbaszadeh, “Quantum entanglement for identifying true coincidences in a CZT-based PET system,” Proc. SPIE 12464, Medical Imaging 2023: Image Processing, 1246435 (3 April 2023); https://doi.org/10.1117/12.2654408

2022

• Swaby, Akyl, Adam S. Wang, Michael G. Farrier, Weixin Cheng, Shiva Abbaszadeh, “Soil matrix study using a hybrid a-Se/CMOS pixel detector for CT scanning,” Proc. SPIE 12304, 7th International Conference on Image Formation in X-Ray Computed Tomography, 123041E (17 October 2022); https://doi.org/10.1117/12.2646496
• Hellier, Kaitlin, Emmie Benard, and Shiva Abbaszadeh. “Tellurium doped a-Se devices for improved optical absorption in indirect x-ray photodetection.” Medical Imaging 2022: Physics of Medical Imaging. Vol. 12031. SPIE, 2022.
• Swaby, Akyl, Adam S. Wang, Martin J. Willemink, and Shiva Abbaszadeh. “Dual-layer flat panel detector with a-Se top layer for opportunistic screening of coronary artery calcium: a simulation study.” Medical Imaging 2022: Physics of Medical Imaging. Vol. 12031. SPIE, 2022.
• Hellier, Kaitlin, Emmie Benard, and Shiva Abbaszadeh. “Effects of Te doping on the optical and electronic properties of a-Se photodetectors.” Bulletin of the American Physical Society (2022).

2021

• G. Romanchek, S. Abbaszadeh, “Augmenting ML-Guided Radiological Source Searches for User Interpretability,” Proc. IEEE NSS MIC, 2021
• G. Romanchek, S. Abbaszadeh, “Investigating the Interpretability of ML-Guided Radiological Source Searches,” Proc. Symposium on Radiation Measurements and Applications (SORMA), 2021
• Wang, Yuli, Ryan Herbst, and Shiva Abbaszadeh. “Back-end readout electronic design and initial results: a head-and-neck dedicated PET system based on CZT.” In Medical Imaging 2021: Physics of Medical Imaging, vol. 11595, pp. 262-267. SPIE, 2021.
• Farahmandzadeh, Maryam, Steven Marcinko, Davide Curreli, and Shiva Abbaszadeh. “Thickness uniformity and stability of amorphous selenium films on flexible substrates for indirect conversion x-ray detection.” In Medical Imaging 2021: Physics of Medical Imaging, vol. 11595, pp. 867-873. SPIE, 2021.
  
• Nasiri, Nahid, and Shiva Abbaszadeh. “A deep learning approach to correctly identify the sequence of coincidences in cross-strip CZT detectors.” Medical Imaging 2021: Physics of Medical Imaging. Vol. 11595. SPIE, 2021.

2020

• G. Romanchek, S. Abbaszadeh, “Radiological Source Localization Likelihood Mapping with Gaussian Process Background Estimation,” Proc. IEEE NSS MIC, 2020
• G. Romanchek, S. Abbaszadeh, “Bayesian Stopping Criteria for Reinforcement Learning Based Radiation Source Localization,” Proc. Symposium on Radiation Measurements and Applications (SORMA), 2020
• Zhou, Peng, Zheng Liu, Hemmings Wu, Yuli Wang, Yong Lei, and Shiva Abbaszadeh. “Automatically detecting bregma and lambda points in rodent skull anatomy images.” PloS one 15, no. 12 (2020): e0244378.
• Farahmandzadeh, Maryam, and Shiva Abbaszadeh. “A machine learning approach for identifying correct sequence of multiple interaction photon event in PET systems.” (2020): 1514-1514.
  

2019

• G. Romanchek, Z. Liu, S. Abbaszadeh, “Autonomous Source Detection and Source Localization System in Sparse Data,” Proc. Consortium for Nonproliferation Enabling Capabilities (CNEC) Workshop, 2019
• G. Romanchek, P. Tanton, S. Abbaszadeh, “Effects of Bladder Activity Concentration in PET Imaging on Regional Contrast,” Proc. American Nuclear Society (ANS) Student Conference, 2019
• G. Romanchek, Z. Liu, S. Abbaszadeh, “Radiation Source Localization using Double Q-Learning & Anomaly Detection Algorithms, “Proc. University Program Review (UPR), Consortium for Nonproliferation Enabling Capabilities (CNEC), NNSA, 2019
• G. Romanchek, B. Yockey, S. Abbaszadeh. “Towards Non-Invasive Estimate of Blood-Plasma Time Activity Curve for Dynamic PET,” Proc. Society of Nuclear Medicine and Molecular Imaging (SNMMI) Annual Conference, 2019
•  G. Romanchek, Z. Liu, S. Abbaszadeh, “Low Count Radioactive Source Searching with Gaussian Process and Reinforcement Learning,” Proc. IEEE NSS MIC, 2019

2018

• H. Ghulam, Z. Zeng, C. Yao, M. Li, Z. Guo, L. Guo, Z. Wang, and S. Chen. “Assay of low-background stainless steel by smelting for the neutrino experiment at Jinping.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 881 (2018): 65-71.
• G. Romanchek, S. Abbaszadeh, “Design Evaluation of an Improved Gamma-Ray Detector,” Proc. American Nuclear Society (ANS) Student Conference, 2018
• G. Romanchek, S. Abbaszadeh, “Lone Mobile Radiation Detector for Anomalous Source Localization,” Proc. National Nuclear Security Administration (NNSA) Conference, 2018
• Z Liu, G. Romanchek, S. Abbaszadeh, “Automated Drones for Radiation Source Searching with Reinforcement Learning,” Proc. Symposium on Radiation Measurements and Applications (SORMA), 2018
• H. Chen, H. Li, M.D. Reed, A.G. Sundaram, J. Eger, J.W. Hugg, and S. Abbaszadeh,  “Development of large-volume high-performance monolithic CZT radiation detector.” In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XX, vol. 10762, p. 107620N. International Society for Optics and Photonics, 2018.

2017

• Beacom, John F., et al. “Physics prospects of the Jinping neutrino experiment.” Chinese physics C 41.2 (2017): 023002.
• S. Abbaszadeh and C. S. Levin, “Towards a high sensitivity small animal PET system based on CZT detectors,” SPIE Medical Imaging, to appear.
• S. Abbaszadeh and H. Wu, “Automated location detection of injection site for preclinical stereotactic neurosurgery procedure,” SPIE Medical Imaging, to appear.

2007 – 2016

• Beacom, John F., et al. “Letter of intent: Jinping neutrino experiment.” arXiv preprint arXiv:1602.01733 (2016).
• M. Li, Z. Guo, M. Yeh, Z. Wang, and S. Chen. “Separation of scintillation and Cherenkov lights in linear alkyl benzene.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 830 (2016): 303-308.
• S. Abbaszadeh and C. S. Levin, “3-D position sensitive CZT positron emission tomography system: current status,” Proc. Nuclear Science Symposium and Medical Imaging Conference (NSS-MIC), 2016.
• S. Abbaszadeh and C. S. Levin, “Design and optimization of a new-generation CZT-based positron emission tomography system”, Proc. SPIE Optical Engineering, 2016.
• S. Abbaszadeh, G. Chinn, and C. S. Levin, “Effect of energy threshold in sub-mm resolution CZT-based PET system,” Proc. Nuclear Science Symposium and Medical Imaging Conference (NSS-MIC), 2015.
• D. Vernekohl, S. Abbaszadeh, Y. Gu, and C. S. Levin, “Enhanced data analysis for improved energy resolution of a CZT-based PET system,” Proc. Nuclear Science Symposium and Medical Imaging Conference (NSS-MIC), 2015.
• S. Abbaszadeh, Y. Gu, U. Sikora, and C. S. Levin, “First acquisition of data from prototype 3-D position sensitive CZT PET system,” Proc. Nuclear Science Symposium and Medical Imaging Conference (NSS-MIC), 2014.
• C. C. Scott, S. Abbaszadeh, S. Ghanbarzadeh, G. Allan, M. Farrier, and K. S. Karim, “Amorphous selenium direct detection CMOS digital X-ray imager with 25 micron resolution,” Proc. SPIE Medical Imaging, 2014.
• S. Abbaszadeh, S. Ghaffari, and K. S. Karim, “Investigation of electrical conduction in polyimide/amorphous selenium films under high electric fields,” 25th International Conference on Amorphous and Nanocrystalline Semiconductors, 2013.
• S. Abbaszadeh, K. Wang, A. Reznik, J. A. Rowlands, and K. S. Karim, “Ion beam assisted deposition of a mixed cerium oxide hole blocking contact for multilayer amorphous selenium devices,” Canadian Semiconductor Science and Technology Conference, 2013.
• (invited) S. Abbaszadeh, R. Keshavarzi, K. Wang, and K. S. Karim, “Indirect conversion digital X-ray imager using an amorphous selenium photoconductor,” 223rd Electrochemical Society Meeting, 2013.
• S. Abbaszadeh, K. S. Karim, and V. Karanassios, “A low dark current a-Se detector for measurement microplasma emission in the UV for possible use on-site,” Proc. SPIE Defense, Security, and Sensing, 2013.
• S. Abbaszadeh, Z. Du, N. Allec, and K. S. Karim, “Application of organic semiconductors in amorphous selenium based photodetectors for high performance X-ray imaging,” Proc. SPIE Medical Imaging, 2013.
• S. Ghanbarzadeh, S. Abbaszadeh, M. M. Adachi, and K. S. Karim, “Low dark current and high dynamic range a-Si:H MSM photodetector for large area medical imaging,” Proc. SPIE Medical Imaging, 2013.
• G. P. Lindberg, R. E. Tallman, S. Abbaszadeh, and K. S. Karim, J. A. Rowlands, A. Reznik, and B. A. Weinstein, “Frustration of photocrystallization in amorphous selenium films and film-polymer structures near the glass transition,” Proc. AIP Conf., ICPS-31, 2012.
• S. Abbaszadeh, N. Allec, and K. S. Karim, “Study of the transient response of PI/a-Se photodetectors for indirect conversion medical imaging,” Proc. IEEE Nuclear Science Symposium, Medical Imaging Conference (NSS-MIC), 2012.
• S. Abbaszadeh, M. M. Adachi, N. Allec, and K. S. Karim, “Design and fabrication of silicon nanowire based X-ray detector,” Nano Ontario Conference, 2012.
• S. Abbaszadeh, N. Allec, U. Shafique, and K. S. Karim, “Improving amorphous selenium photodetector performance using an organic semiconductor,” Proc. International Conference on Materials and Applications for Sensors and Transducers, 2012.
• Y. Fang, E. O’Bryan, S. Abbaszadeh, H. S. Majid, R. J. Jennings, C. Marini-Bettolo, N. Allec, K. S. Karim, and A. Badano, “Pulse-height spectroscopy of amorphous selenium semiconductor detectors for X-ray imaging applications,” Proc. IEEE Symp. on Radiation Measurements and Applications, 2012.
• G. P. Lindberg, R. E. Tallman, B. A. Weinstein, S. Abbaszadeh, K. S. Karim, and A. Reznik, “Substrate- and interface-mediated photocrystallization in a-Se films and multi-layers,” Bulletin of the American Physical Society, 2012.
• S. Abbaszadeh, N. Allec, and K. S. Karim, “High performance amorphous selenium lateral photodetector,” Proc. SPIE Medical Imaging, 2012.
• S. Abbaszadeh, S. H. Majid, N. Allec, and K. S. Karim, “Amorphous selenium photodetector on a flexible substrate for indirect conversion medical imaging,” Proc. SPIE Medical Imaging, 2012.
• N. Allec, S. Abbaszadeh, J. M. Lewin, and K. S. Karim, “Motion artifacts in dual-energy contrast-enhanced mammography,” Proc. SPIE Medical Imaging, 2012.
• R. Keshavarzi, K. Wang, M. Y. Yazdandoost, K.-W. Shin, F. Chen, S. H. Majid, S. Abbaszadeh, and K. S. Karim, “Performance of a prototype 32×32 pixel indirect X-ray imager based on a lateral selenium passive pixel sensor,” Proc. SPIE Medical Imaging, 2012.
• S. Abbaszadeh, K. Rom, O. Bubon, B. A. Weinstein, K. S. Karim, J. A. Rowlands, and A. Reznik, “Comparison of photodarkening and photocrystallization in rigid and flexible amorphous selenium films,” 24th International Conference on Amorphous and Nanocrystalline Semiconductors, 2011.
• S. Abbaszadeh, N. Allec, K. Wang, F. Chen, and K. S. Karim, “Study of gain phenomenon in lateral metal-semiconductor-metal detectors for indirect conversion medical imaging,” Proc. SPIE Medical Imaging, 2011.
• K. Wang, M. Y. Yazdandoost, R. Keshavarzi, K.-W. Shin, C. Hristovski, S. Abbaszadeh, F. Chen, S. H. Majid, and K. S. Karim, “Integration of an amorphous silicon passive pixel sensor array with a lateral amorphous selenium detector for large area indirect conversion X-ray imaging applications,” Proc. SPIE Medical Imaging, 2011.
• S. Abbaszadeh, K. Wang, N. Allec, F. Chen, and K. S. Karim, “High gain lateral amorphous selenium (a-Se) detector for medical imaging,” Proc. 5th Canadian Student Conference on Biomedical Computing and Engineering, 2010.
• F. Hossein-Babaei and S. Abbaszadeh, “Fabrication and assessment of a gas sensitive silver-rutile Schottky diode,” Proc. 10th International Conference and Exhibition of the European Ceramic, 2007.