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Full-Text Articles in Engineering
Material Development Toward An Index-Matched Gadolinium-Based Heterogenous Capture-Gated Neutron Detector, Aaron J. Thorum
Material Development Toward An Index-Matched Gadolinium-Based Heterogenous Capture-Gated Neutron Detector, Aaron J. Thorum
Theses and Dissertations
Neutron detection is important in several fields, especially detection of illicit nuclear material. Historically, 3He has been the basis for these technologies. Modern realities have necessitated the development of new technologies and the exploration of new materials to meet this need. One potential solution is known as capture-gating, which is a measurement approach that is good at differentiating between incident neutrons and gamma rays. The key issue is that materials used in current capture-gating devices can suffer from poor optical performance. This is due to the fact that the these detectors, whether composed of a heterogeneous or homogeneous mixture of …
Development Of Magnetic Fabrics With Tunable Hydrophobicity, Thu Ho
Development Of Magnetic Fabrics With Tunable Hydrophobicity, Thu Ho
Theses and Dissertations
Polystyrene (PS) fiber mats incorporating iron (Fe) particles were fabricated by electrospinning and the hydrophobicity of the resulting magnetic fabrics was investigated with and without an applied magnetic field. The results show that the hydrophobicity (as measured using water droplet contact angle) increases in the presence of a magnetic field and the hysterisis in the advancing/receding contact angle (a measure of the stickiness of the surface) decreases in the presence of a magnetic field. It is also shown that the contact angle and hysterises increase with decreasing fiber diameter and mat thickness.