scholarly journals A multichannel magnetic probe system for analysing magnetic fluctuations in helical axis plasmas

2013 ◽  
Vol 84 (9) ◽  
pp. 093501 ◽  
Author(s):  
S. R. Haskey ◽  
B. D. Blackwell ◽  
B. Seiwald ◽  
M. J. Hole ◽  
D. G. Pretty ◽  
...  
Keyword(s):  
Magnetic Probe ◽  
Helical Axis ◽  
Magnetic Fluctuations ◽  
Probe System

scholarly journals Design and construction of high-frequency magnetic probe system on the HL-2A tokamak

AIP Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 125004
Author(s):  
S. Y. Liang ◽  
X. Q. Ji ◽  
T. F. Sun ◽  
Yuan Xu ◽  
J. Lu ◽  
...  
Keyword(s):  
High Frequency ◽  
Magnetic Probe ◽  
Probe System ◽  
Design And Construction

Design and first result of combined Langmuir-magnetic probe on J-TEXT tokamak

2021 ◽  
Author(s):  
Qinghu Yang ◽  
Zhipeng Chen ◽  
Zhigang Hao ◽  
Yangming Zhao ◽  
Xin Xu ◽  
...  
Keyword(s):  
Eddy Current ◽  
Magnetic Surface ◽  
Mutual Inductance ◽  
Magnetic Probe ◽  
Shielding Effect ◽  
Magnetic Fluctuations ◽  
Electromagnetic Mode ◽  
Pneumatic Device ◽  
Magnetic Fluctuation ◽  
Electromagnetic Signals

Abstract In order to measure boundary electrostatic and magnetic fluctuations simultaneously, a set of combined Langmuir-magnetic probe (CLMP) has been designed and built on Joint-Texas Experimental Tokamak (J-TEXT). The probe consists of 8 graphite probe pins and a 3D magnetic probe, driven by a mechanical pneumatic device. By means of simulation, the shielding effect of the graphite sleeve on the magnetic fluctuation signal is explored, and the influence of the eddy current was reduced by cutting the graphite sleeve. In the experiment, it has been verified that the mutual inductance of electromagnetic signals can be ignored. And a 70~90kHz electromagnetic mode is observed around the last closed magnetic surface (LCFS). The establishment of CLMP provides data for the exploration of the coupling of electrostatic and magnetic fluctuations.

Movable magnetic probe system in the T-10 tokamak

2012 ◽  
Vol 83 (1) ◽  
pp. 013505 ◽  
Author(s):  
P. V. Savrukhin ◽  
E. A. Shestakov
Keyword(s):  
Magnetic Probe ◽  
Probe System

Magnetic Probe System on JT-60

1988 ◽  
Vol 27 (Part 1, No. 12) ◽  
pp. 2398-2403
Author(s):  
Yuzuru Neyatani ◽  
Yukihiko Yamashita ◽  
Hideaki Yokomizo
Keyword(s):  
Magnetic Probe ◽  
Probe System

The fast reciprocating magnetic probe system on the J-TEXT tokamak

2016 ◽  
Vol 87 (11) ◽  
pp. 11D436 ◽  
Author(s):  
Fuming Li ◽  
Zhipeng Chen ◽  
Ge Zhuang ◽  
Hai Liu ◽  
Lizhi Zhu
Keyword(s):  
Magnetic Probe ◽  
Probe System

Feasibility of Molecular Structure Determination With a High Resolution Electron Microscope

1968 ◽  
Vol 26 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Electron Microscope ◽  
Substrate Surface ◽  
Helical Axis ◽  
Base Plane ◽  
Resolution Electron ◽  
High Resolution Electron Microscope ◽  
High Degree ◽  
Degree Of Order ◽  
Purine Pyrimidine

An ultimate design goal for an improved electron microscope, aimed at biological applications, is the determination of the structure of complex bio-molecules. As a prototype of this class of problems, we propose to examine the possibility of reading DNA sequence by an imaginable instrument design. This problem ideally combines absolute importance and relative simplicity, in as much as the problem of enzyme structure seems to be a much more difficult one.The proposed technique involves the deposition on a thin graphite lamina of intact double helical DNA rods. If the structure can be maintained under vacuum conditions, we can then make use of the high degree of order to greatly reduce the work involved in discriminating between the four possible purine-pyrimidine arrangements in each base plane. The phosphorus atoms of the back bone form in projection (the helical axis being necessarily parallel to the substrate surface) two intertwined sinusoids. If these phosphorus atoms have been located up to a certain point on the molecule, we have available excellent information on the orientation of the base plane at that point, and can then locate in projection the key atoms for discrimination of the four alternatives.

The restoration of blurred electron micrographs

1986 ◽  
Vol 44 ◽  
pp. 180-181
Author(s):  
Bridget Carragher ◽  
David A. Bluemke ◽  
Michael J. Potel ◽  
Robert Josephs
Keyword(s):  
Cross Section ◽  
Electron Micrographs ◽  
Relative Motion ◽  
Finite Thickness ◽  
Image Plane ◽  
Helical Axis ◽  
Thin Sections ◽  
Structural Details

We have investigated the feasibility of restoring blurred electron micrographs. Two related problems have been considered; the restoration of images blurred as a result of relative motion between the specimen and the image plane, and the restoration of images which are rotationally blurred about an axis. Micrographs taken while the specimen is drifting result in images which are blurred in the direction of motion. An example of rotational blurring arises in micrographs of thin sections of helical particles viewed in cross section. The twist of the particle within the finite thickness of the section causes the image to appear rotationally blurred about the helical axis. As a result, structural details, particularly at large distances from the helical axis, will be obscured.

Development of an Ion Beam Probe System for Potential Measurement in the Low Aspect-Ratio Torus Experiment Device

2012 ◽  
Vol 132 (7) ◽  
pp. 567-573
Author(s):  
Hitoshi Tanaka ◽  
Shota Omi ◽  
Jun Katsuma ◽  
Yurie Yamamoto ◽  
Masaki Uchida ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Ion Beam ◽  
Potential Measurement ◽  
Low Aspect Ratio ◽  
Probe System ◽  
Experiment Device

Magnetic probe measurments on a Theta pinch discharge

1962 ◽  
Vol 9 (2) ◽  
pp. 148-166
Author(s):  
Izumi Hayashi ◽  
Yoshibumi Senoo
Keyword(s):  
Magnetic Probe ◽  
Theta Pinch
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