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Charge Transfer Collisions & My Road to PhD: Dwayne C. Joseph in Minority Bridge Program

Exploring charge transfer collisions in plasma, x-ray emissions from solar wind ions, ion-atom collision theory, and Dwayne C. Joseph's journey from engineering to pursuing a PhD in Physics. Discover the challenges and triumphs in academia, life before, during, and after graduate school, and essential tools for success.

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Charge Transfer Collisions & My Road to PhD: Dwayne C. Joseph in Minority Bridge Program

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  1. Charge Transfer Collisions & My Road to PhD Dwayne C. Joseph Minority Bridge Program 2011

  2. Neutral species Solar wind ions Introduction • Heavy ions found in the solar wind, such as Si3+, emit x-rays due to charge transfer with cometary neutral species [4]. • Charge transfer collisions with multiply charge silicon ions has disrupted the heating and cooling of the plasma for a Van de Graaff accelerator [5]. • Charge transfer processes between multiply charged ions and H influences the ionization balance [2]. Region of x-ray emissions Minority Bridge Program 2011

  3. Charge Exchange DescriptionH+ + He(1s2)  H(2p) + He+ - X-rays are emitted - Electrons transition between energy levels Hydrogen Helium ion Minority Bridge Program 2011

  4. Ion-Atom Collision Theory • No Lasers • No Gas Chambers • No High Voltage QMOCC SCMOCC E Minority Bridge Program 2011

  5. Life Before PhD • Interested in Math as far back as 2nd Grade • Elementary School had Science Fairs • Complicated things made more sense to me • Amazing Math and Physics Teachers in HS Minority Bridge Program 2011

  6. Life Before PhD • Started out in engineering program • Had several internships with Xerox • Learned valuable lessons • What it’s like to not be broke • Lessons in politics & office culture • Insight into what to expect Undergraduate Mathematics, B.S. Physics, minor Minority Bridge Program 2011

  7. What Lead me to Pursue my PhD in Physics • Electrodynamics • Advanced Lab (CAU) • Earth System Science Program • Atmospheric Science & Meteorology • Built radiometers, remote sensors • Presented at conferences • Developed an understanding and passion for the field • Started graduate work, but wasn’t fulfilled • National Society of Black Physicists & Eddie Red Minority Bridge Program 2011

  8. Life at FAMU • Developed strong rapport with colleagues • Developed a passion for my field • Qualifiers are no joke Minority Bridge Program 2011

  9. Life in Grad School • You are not alone • You live life on a budget • You actually know something Minority Bridge Program 2011

  10. Life in Grad School • Life sucks… at times (marathon anyone?) Minority Bridge Program 2011

  11. Life in Grad School • Conferences become your haven • Life does not stop Minority Bridge Program 2011

  12. Tools of the Trade • Mentors • Colleagues that are just as driven • Mentors • Passions/interest outside of Physics Minority Bridge Program 2011

  13. Tools of the Trade • Choose your advisor wisely Minority Bridge Program 2011

  14. Tools of the Trade • Maintain structure • Mentors Minority Bridge Program 2011

  15. Why Do You Want a PhD in Physics? Minority Bridge Program 2011

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