Improved Optical Diagnostic and Microwave Power Supply, final report. An ARRA Supplement to Instabilities in Nonthermal Atmospheric Pressure Plasma

Hopwood, Jeffrey¹ 

[1]Tufts Univ., Medford, MA (United States)

关键词: Microplasma;    microdischarge;    optical plasma diagnostic;    microwaves;    plasma instabilities;   

DOI  :  10.2172/1014506
RP-ID  :  DOE/SC0001923--1
PID  :  OSTI ID: 1014506

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

This is the final report for the supplemental program ''Improved Optical Diagnostic and Microwave Power Supply'' which has funded the purchase of laboratory instrumentation to enhance the main DOE project, ''Instabilities in Non-thermal Atmospheric Pressure Plasma.'' The main program???s goals include a scientific study of the plasma physics causing large-area plasmas to become unstable at atmospheric pressure. These fundamental scientific discoveries will then allow for the design of controllable cold plasma sources capable of materials processing, including photovoltaic devices, at one atmosphere. This leads to lower costs of energy production. This final report describes only the completion of the supplement. A high-speed spectroscopic camera capable of diagnosing plasma fluctuations and instabilities on time-scales of 2 ns was specified, purchased, installed and tested at the Tufts University Plasma Laboratory. In addition, a 30 watt microwave power system capable of producing short pulses of power in the 0.8 ??? 4.2 GHz bands was specified, purchased, installed and tested. Scientific experiments are continuing under the funding of the main grant, but a few preliminary examples of scientific discoveries made using these items are included in this report.