Fabrication and absolute calibration of B-dot probe for magnetic field measurement on a high power laser facility
The fabrication and absolute calibration of a B-dot probe is employed to measure the pulsed magnetic field at the Shenguang-II high power laser facility. Copper enameled silk with a cross section diameter of 0.1 mm is used to wind the one-turn coil with a 1 mm diameter. Two coils are paired and reve...
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Published in | Plasma science & technology Vol. 22; no. 8; pp. 85201 - 85205 |
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Main Authors | , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
01.08.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The fabrication and absolute calibration of a B-dot probe is employed to measure the pulsed magnetic field at the Shenguang-II high power laser facility. Copper enameled silk with a cross section diameter of 0.1 mm is used to wind the one-turn coil with a 1 mm diameter. Two coils are paired and reversely linked to their respective circuits to form a differential B-dot probe that is sealed in and protected by a quartz shell. This B-dot probe is experimentally calibrated and then used to measure the pulsed magnetic field in laser targeting experiments at the Shenguang-II high power laser facility. Signals show a high performance of this B-dot probe. The common mode noise can be effectively canceled out by the differential pair. The magnetic field of over 300 T can be extrapolated at the location close to the target. |
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Bibliography: | PST-2020-0045.R2 Institute of Plasma Physics |
ISSN: | 1009-0630 2058-6272 |
DOI: | 10.1088/2058-6272/ab8f1c |