Ashok Tiwari, Ph.D.

Ashok Tiwari, Ph.D.

Postdoctoral Research Associate

Oak Ridge National Laboratory

I am a Postdoctoral Research Associate in the Computational Sciences and Engineering Division at Oak Ridge National Laboratory. My primary research focuses on radiation physics, radiopharmaceutical dosimetry, and Monte Carlo simulations. I specialize in Monte Carlo simulations to address radiation physics challenges, encompassing dosimetry and radiation biology. A distinguishing aspect of my research is the tight-knit collaborations with experts in radiopharmaceutical therapy dosimetry, molecular imaging, and radiation transport simulations.

My doctoral thesis (download) encompassed radiopharmaceutical therapy dosimetry and quantitative imaging in nuclear medicine. Specifically, I delved into two key areas: (1) dosimetry of β- and α-emitting radionuclides and (2) Monte Carlo simulation of PET scanner, bolstered by subsequent validation.

Short Bio:

I originate from the charming northwestern region of Gorkha, Nepal, where I cherished my formative years. I received my B.Sc. and M.Sc. degrees from Tribhuvan University in 2008 and 2012, respectively. Subsequently, I did my second master’s at the University of South Dakota (2017) and a Ph.D. in physics from the University of Iowa (2022).

On a personal note, I find solace in cycling and relish the serenity of natural surroundings. My literary interests span both fiction and non-fiction genres. I also enjoy various gaming formats, such as Carrom board, cards, and culinary arts.

Click here to download my CV

Interests
  • Medical Physics
  • Radiopharmaceutical Therapy
  • Monte Carlo Simulations
  • Positron Emission Tomography
  • Artificial Intelligence
  • Theranostics
Education
  • Certificate in Medical Physics, 2023

    Wake Forest University, Winston-Salem, NC, USA

  • PhD in Physics, 2022

    University of Iowa, Iowa City, IA, USA

  • MS in Physics, 2017

    University of South Dakota, Vermillion, SD, USA

  • MSc in Physics, 2012

    Tribhuvan University, Kathmandu, Nepal

  • BSc in Physics, 2008

    Tribhuvan University, Kathmandu, Nepal

Latest