scholarly journals Derivation of dynamo current drive in a closed-current volume and stable current sustainment in the HIT-SI experiment

2017 ◽  
Vol 24 (2) ◽  
pp. 020702 ◽  
Author(s):  
A. C. Hossack ◽  
D. A. Sutherland ◽  
T. R. Jarboe
Keyword(s):  
Current Drive ◽  
Current Volume ◽  
Closed Current ◽  
Stable Current

A Stable Field Emission Electron Source

1977 ◽  
Vol 35 ◽  
pp. 58-59
Author(s):  
W.R. Bottoms ◽  
G.B. Haydon
Keyword(s):  
Field Emission ◽  
Signal To Noise Ratio ◽  
High Brightness ◽  
Electron Sources ◽  
Brightness Field ◽  
Current Densities ◽  
Properties Of Materials ◽  
Stable Field ◽  
Stable Current ◽  
Careful Design

There is great interest in improving the brightness of electron sources and therefore the ability of electron optical instrumentation to probe the properties of materials. Extensive work by Dr. Crew and others has provided extremely high brightness sources for certain kinds of analytical problems but which pose serious difficulties in other problems. These sources cannot survive in conventional system vacuums. If one wishes to gather information from the other signal channels activated by electron beam bombardment it is necessary to provide sufficient current to allow an acceptable signal-to-noise ratio. It is possible through careful design to provide a high brightness field emission source which has the capability of providing high currents as well as high current densities to a specimen. In this paper we describe an electrode to provide long-lived stable current in field emission sources.The source geometry was based upon the results of extensive computer modeling. The design attempted to maximize the total current available at a specimen.

An Idea That Has Come of Age—Organized Innovation: a Blueprint for Renewing America's Prosperity

2020 ◽  
Vol 21 (3) ◽  
pp. 243-246
Author(s):  
Paul R. Sanberg ◽  
Karen J.L. Burg
Keyword(s):  
Economic Development ◽  
Research Team ◽  
New Technologies ◽  
Current Drive ◽  
Corporate Partnerships ◽  
New Framework

Universities have long recognized the need to create pathways for ideas and new technologies to advance from academic labs to market; however, the decentralized and haphazard nature of American innovation means that some discoveries may be neglected. In order to more effectively address the issues with innovation, a research team led by Steven Currall produced a new framework in the book Organized Innovation: A Blueprint for Renewing America's Prosperity. Because of the current drive of universities to increase innovation, economic development, and corporate partnerships, we thought it was timely to revisit this book and offer commentary on its lessons for navigating these demands.

Fast wave current drive

1985 ◽  
Author(s):  
J. Goree ◽  
M. Ono ◽  
P. Colestock ◽  
R. Horton ◽  
D. McNeill ◽  
...  
Keyword(s):  
Current Drive ◽  
Fast Wave

scholarly journals Suppression of neoclassical tearing mode instability at the initial stage by electron cyclotron current drive

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035212
Author(s):  
Zhen Yang ◽  
Bin Wu ◽  
Yuanlai Xie ◽  
Yuqing Chen ◽  
Hongming Zhang ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Tearing Mode ◽  
Mode Instability ◽  
Initial Stage ◽  
Neoclassical Tearing Mode

Low Power Loss IGBT Driver Circuit Using Current Drive

2020 ◽  
Author(s):  
Yudai Abe ◽  
Akio Iwabuchi ◽  
Jun-Ichi Matsuda ◽  
Anna Kuwana ◽  
Takashi Ida ◽  
...  
Keyword(s):  
Low Power ◽  
Power Loss ◽  
Current Drive ◽  
Driver Circuit

The Alcator C-Mod lower hybrid current drive experiment transmitter

2005 ◽  
Vol 74 (1-4) ◽  
pp. 495-499 ◽  
Author(s):  
M. Grimes ◽  
D. Terry ◽  
R. Parker ◽  
D. Beals ◽  
J. Irby ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Lower Hybrid Current Drive
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