Aubrey Tidwell

• SOAR Position: Member
• Major: Physics
• Faculty Mentor(s): Dr. Daniel Erenso

Current Focus: Modeling Radiation Intensity and Temperature of Blood Samples: Exploring Black Body Radiation Phenomena and Temperature through Computational Analysis and Experimental Measurements

Project Description

In my project, we explore the ionization of red blood cells using a method called laser trapping. We start by mixing bovine blood with magnetic beads, which help accelerate the ionization process when exposed to a focused 1064 nm infrared laser. The laser creates a powerful electromagnetic field that strips electrons from the cells, turning them into plasma. We capture this plasma formation in real-time with a CCD camera. Laser trapping works by using a concentrated laser beam to create a precise electromagnetic field. This field can manipulate and trap tiny particles, such as blood cells, by exerting specific forces on them. For my experiment, this means the laser effectively removes electrons from the cells, resulting in plasma—a state where the matter is ionized. To analyze the video clips recorded by the CCD camera, I use Python code that I developed to analyze the pixel intensity and varius other power measurements. I also use OriginPro to examine details like plasma formation, radiation intensity, temperature, and wavelength. We estimate the plasma’s temperature and link it to the wavelength or color of the radiation.

Why does this topic interest you?

This topic interests me because, while I was initially considering going to grad school for medical physics, I needed a compelling project for my thesis. Working with lasers in a project that combines physics with biological applications felt like an exciting opportunity. It allowed me to explore advanced techniques and gain valuable experience, which aligns with both my interests and future aspirations.

What are your professional aspirations?

For my future aspirations, I plan to pursue a government job where I can apply the knowledge and skills I've gained from my physics degree. While I am still exploring the exact role that aligns with my interests, I am drawn to government positions because of their excellent benefits and pay.

Do you have any advice for future researchers?

For future researchers, my advice is to dive into research as early as possible to make the most of your time at MTSU. Gaining hands-on experience early on can be incredibly valuable and will help you build essential skills. Additionally, don’t miss out on applying for URECA funding every semester because it’s a great opportunity to support/fund your research and enhance your academic journey. It also looks good!!

Return to Listing