Charles Hirst
- Name
- Dr Charles Hirst
- Institution
- University of Wisconsin-Madison
- Position
- Assistant Professor
- Affiliation
- Nuclear Engineering & Engineering Physics
- h-Index
- 2
- ORCID
- 0000-0003-2973-9290
- Biography
Assistant Professor in the Department of Nuclear Engineering & Engineering Physics at the University of Wisconsin-Madison. My research investigates the interplay between radiation damage, temperature, stress, and stored energy in nuclear materials. Passionate about technical science communication, the development and deployment of nuclear energy, and addressing the climate & ecological emergency.
- Expertise
- Annealing, Defects, DSC, Ion Irradiation, Irradiation Creep, Molecular Dynamics, Radiation Damage, Stress, Thermal Desorption Spectroscopy
| "Smaller and faster: a review of conventional and nanocalorimetry techniques for determining thermophysical properties of nuclear materials" Scott Middlemas, Charles A. Hirst, Alexandra Navrotsky, Laura Bonatti, [2025] Journal of Thermal Analysis and Calorimetry · DOI: 10.1007/s10973-025-14502-3 | |
| "Measuring Very Low Radiation Doses in PTFE for Nuclear Forensic Enrichment Reconstruction" Charles A. Hirst, Kevin B. Woller, Avery K. Nguyen, Julie V. Logan, R. Scott Kemp, Michael P. Short, Rachel C. Connick, [2024] Radiation Physics and Chemistry · DOI: 10.1016/j.radphyschem.2024.112256 | |
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"Revealing hidden defects through stored energy measurements of radiation damage"
Fredric Granberg, Boopathy Kombaiah, Penghui Cao, Scott Middlemas, R. Scott Kemp, Ju Li, Kai Nordlund, Michael P. Short, Charles A. Hirst,
[2022]
Science Advances
· DOI: 10.1126/sciadv.abn2733
With full knowledge of a material’s atomistic structure, it is possible to predict any macroscopic property of interest. In practice, this is hindered by limitations of the chosen characterization techniques. For example, electron microscopy is unable to detect the smallest and most numerous defects in irradiated materials. Instead of spatial characterization, we propose to detect and quantify defects through their excess energy. Differential scanning calorimetry of irradiated Ti measures defect densities five times greater than those determined using transmission electron microscopy. Our experiments also reveal two energetically distinct processes where the established annealing model predicts one. Molecular dynamics simulations discover the defects responsible and inform a new mechanism for the recovery of irradiation-induced defects. The combination of annealing experiments and simulations can reveal defects hidden to other characterization techniques and has the potential to uncover new mechanisms behind the evolution of defects in materials. |
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| "Effects of Defect Development During Displacive Austenite Reversion on Strain Hardening and Formability" Jiyun Kang, Charles Arthur Hirst, Cemal Cem Taşan, Menglei Jiang, [2020] Metallurgical and Materials Transactions A · DOI: 10.1007/s11661-020-05835-9 · ISSN: 1073-5623 | |
| Source: ORCID/CrossRef using DOI | |
About Us
The Nuclear Science User Facilities (NSUF) is the U.S. Department of Energy Office of Nuclear Energy's only designated nuclear energy user facility. Through peer-reviewed proposal processes, the NSUF provides researchers access to neutron, ion, and gamma irradiations, post-irradiation examination and beamline capabilities at Idaho National Laboratory and a diverse mix of university, national laboratory and industry partner institutions.
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