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Background and controlled electromagnetic radiation (EMR) on biological cells and tissues induces thermal, non-thermal, and dielectric property change. After EMR interaction with cells/tissues the resulting signal is used for imaging,…

Biological Physics · Physics 2020-12-24 Biswadev Roy , Suryakant Niture , Marvin H. Wu

Computed Tomography (CT) is a vital diagnostic tool in clinical practice, yet the health risks associated with ionizing radiation cannot be overlooked. Low-dose CT (LDCT) helps mitigate radiation exposure but simultaneously leads to reduced…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Guoliang Gong , Man Yu

For efficient application of protons and light ions in radiotherapy, detailed knowledge and realistic models of the corresponding radiobiological mechanism are necessary. Basic characteristics of this mechanism have been represented within…

Biological Physics · Physics 2007-05-23 Pavel Kundrat , Hana Hromcikova , Milos Lokajicek

Low-dose CT (LDCT) imaging is widely used to reduce radiation exposure to mitigate high exposure side effects, but often suffers from noise and artifacts that affect diagnostic accuracy. To tackle this issue, deep learning models have been…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Taifour Yousra , Beghdadi Azeddine , Marie Luong , Zuheng Ming

Medical conditions due to acute cell injury, such as stroke and heart attack, are of tremendous impact and have attracted huge amounts of research effort. The biomedical research that seeks cures for these conditions has been dominated by a…

Cell Behavior · Quantitative Biology 2019-11-25 Donald J. DeGracia , Doaa Taha , Fika Tri Anggraini , Zhi-Feng Huang

The characteristics of backward diffraction radiation (BDR), i.e. radiation of the charged particle passing through a slit in the tilted screen, has been considered. The technique for non-destructive beam diagnostics based on the…

Accelerator Physics · Physics 2007-05-23 A. P. Potylitsyn , N. A. Potylitsyna

It is possible to find the optimized radiation dose per session for a radiotherapy (RT) treatment, using a population dynamics model. This has already been done in a previous work for a protocol with 30 sessions and a fixed dose per…

We model the effects of disease and other exogenous damage during human aging. Even when the exogenous damage is repaired at the end of acute disease, propagated secondary damage remains. We consider both short-term mortality effects due to…

Populations and Evolution · Quantitative Biology 2023-09-29 Rebecca Tobin , Glen Pridham , Andrew D. Rutenberg

Low-dose computed tomography (LDCT) is an important topic in the field of radiology over the past decades. LDCT reduces ionizing radiation-induced patient health risks but it also results in a low signal-to-noise ratio (SNR) and a potential…

Image and Video Processing · Electrical Eng. & Systems 2022-10-03 Wenjun Xia , Qing Lyu , Ge Wang

Diffusing alpha-emitters Radiation Therapy (Alpha DaRT) enables the use of alpha particles for the treatment of solid tumors. It employs interstitial sources carrying a few uCi of Ra-224, designed to release its short-lived progeny, which…

Medical Physics · Physics 2023-11-16 Lior Epstein , Guy Heger , Arindam Roy , Israel Gannot , Itzhak Kelson , Lior Arazi

The challenge of imaging low-density objects in an electron microscope without causing beam damage is significant in modern TEM. This is especially true for life science imaging, where the sample, rather than the instrument, still…

Optics · Physics 2025-01-29 Francisco Vega Ibáñez , Jo Verbeeck

The effective use of swift ion beams in cancer treatment (known as hadrontherapy) as well as an appropriate protection in manned space missions rely on the accurate understanding of energy delivery to cells damaging their genetic…

Existing burn resuscitation protocols exhibit large variability in treatment efficacy. Hence, they must be further optimized based on comprehensive knowledge of burn pathophysiology. A physics-based mathematical model that can replicate…

Tissues and Organs · Quantitative Biology 2021-10-28 Ghazal ArabiDarrehDor , Ali Tivay , Chris Meador , George C. Kramer , Jin-Oh Hahn , Jose Salinas

This work proposes a parametric probabilistic approach to model damage accumulation using the double linear damage rule (DLDR) considering the existence of limited experimental fatigue data. A probabilistic version of DLDR is developed in…

Computational Engineering, Finance, and Science · Computer Science 2024-10-11 João Paulo Dias , Stephen Ekwaro-Osire , Americo Cunha , Shweta Dabetwar , Abraham Nispel , Fisseha M. Alemayehu , Haileyesus B. Endeshaw

This article reviews the evolving field of radiobiology, emphasizing the need for advanced multiscale, mechanistic models to optimize radiopharmaceutical therapies (RPT). While the traditional linear-quadratic (LQ) model underpins external…

Medical Physics · Physics 2025-09-23 Tahir Yusufaly , Hamid Abdollahi , Babak Saboury , Arman Rahmim

In this work, we propose a Machine Learning model that generates an adjustable 3D dose distribution for external beam radiation therapy for head-and-neck cancer treatments. In contrast to existing Machine Learning methods that provide a…

We investigate the dose and dose-rate dependence of the mutation frequency caused by artificial radiations with Whack-A-Mole (WAM) model which we have recently proposed. In particular, we pay special attention to the case of long-term and…

Biological Physics · Physics 2016-02-15 Takahiro Wada , Yuichiro Manabe , Issei Nakamura , Yuichi Tsunoyama , Hiroo Nakajima , Masako Bando

In this second part of a series we attempt to construct an empirical model that can mimick all experimental observations made regarding the role of an alternative interleaved scan pattern in STEM imaging on the beam damage in a specific…

Materials Science · Physics 2021-05-03 D. Jannis , A. Velazco , A. Béché , J. Verbeeck

The multiscale approach to the assessment of biodamage resulting upon irradiation of biological media with ions is reviewed, explained and compared to other approaches. The processes of ion propagation in the medium concurrent with…

Biological Physics · Physics 2015-06-18 Eugene Surdutovich , Andrey V. Solov'yov

Radiation technologies have found wide application in power engineering, medicine, biology and other areas of human activities. However, theoretical calculations of nuclear reactions and, correspondingly, the interpretation of experimental…

Nuclear Experiment · Physics 2013-12-10 Yu. P. Lyakhno