Company Filing History:
Years Active: 1989
Title: W W Harrison: Innovator in Plasma Technology
Introduction
W W Harrison is a notable inventor based in Charlottesville, VA (US). He has made significant contributions to the field of plasma technology, particularly with his innovative patent related to hollow cathode plasma plumes. His work has implications for various scientific applications, showcasing the intersection of physics and engineering.
Latest Patents
Harrison holds a patent for a method involving a hollow cathode plasma plume. In this invention, sample material is sputtered from an orifice in a disc mounted in a hollow cathode. A plasma plume is ejected from the orifice, transporting the sputtered material directly into the base of the plasma plume. The collisions with particles in the plasma plume excite the sputtered material, allowing for the measurement of light emission and absorption, as well as ions in the plume. The chamber surrounding the plasma plume is maintained at about 1 torr, with approximately 15 cc's per minute of argon supplied to the hollow cathode at 2 torr. The power supply delivers about 200 volts at around 0.10 amps. Low energy argon ions strike the disc at the end of the cathode tube, sputtering atoms off the aperture. These atoms collide with particles in the plasma, causing excitation, photon emission, and ionization of atoms, which are measured by optical and mass spectrometers.
Career Highlights
Harrison is affiliated with the University of Virginia, where he continues to engage in research and development in plasma technology. His work has contributed to advancements in understanding plasma behavior and its applications in various fields.
Collaborations
Harrison has collaborated with R Kenneth Marcus, further enhancing the research output and innovation in their respective fields.
Conclusion
W W Harrison's contributions to plasma technology through his innovative patent demonstrate the importance of research and collaboration in advancing scientific knowledge. His work continues to influence the field and inspire future innovations.