65550-Tiwari, Ashok
Resident

Ashok Tiwari, PhD

Resident Appointee

Bio

Ashok is a Medical Physics resident at Indiana University Health. Before joining IU Health, he earned his Ph.D. in physics from the University of Iowa and spent some time working at Oak Ridge National Laboratory as a postdoctoral scientist. He completed his Certificate in Medical Physics from Wake Forest University. His primary focus is on the physics of cancer treatment, particularly through the application of radiation.

Key Publications

Tiwari A., Merrick M., Graves S., and Sunderland J. J. Monte Carlo evaluation of hypothetical long axial field-of-view PET scanner using GE Discovery MI PET front-end architecture, Med Phys, 49:1139-1152, 2022.

Graves S., Martin M., Tiwari A., Merrick M., and Sunderland J. J. SIR-Spheres® activity measurements reveal systematic miscalibration, J Nucl Med 2022; 63:1131-1135, DOI: 10.2967/jnumed.121.262650. 

Tiwari A., Sunderland J., Graves S., Strand S., and Flynn R. Absorbed dose distributions from beta-decaying radionuclides: experimental validation of Monte Carlo tools for radiopharmaceutical dosimetry. Med Phys, 47(11):5779-5790, 2020. 

Merrick M. J., Rotsch D. A., Tiwari A., Nolen J., Brossard T., Song J., Wadas T. J., Sunderland J. J., and Graves S. A. Imaging and Dosimetric Characteristics of 67Cu. Phys Med Biol 66, 035002, 2021. 

Tiwari A., Graves S., and Sunderland J. The Impact of Tissue Type and Density on Dose Point Kernels for Patient-Specific Voxel-Wise Dosimetry: A Monte Carlo Investigation. Radiat Res, 193 (6): 531-542, 2020. 

Merrick M. J., Rotsch D. A., Tiwari A., Nolen J., Brossard T., Song J., Wadas T. J., Sunderland J. J., and Graves S. A. Half-Life of 67Cu, J. Phys. Commun. 5 085007, 2021.

Tiwari A., Zhang C., Mei D.-M., and Cushman P. Observation of annual modulation induced by γ rays from (α, γ) reactions at the Soudan Underground Laboratory, Phys Rev C, Vol. 96, No. 4, 2017.

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