Related Experiment Video
Updated: Feb 4, 2026

12:08
Field Identification of Matricaria chamomilla using a Portable qPCR System
Published on: October 10, 2020
7.3K
Portable and noise-tolerant magnetic field generation system
Masafumi Edamoto1, Taichi Morita2, Naoya Saito1
1Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan.
The Review of Scientific Instruments
|October 4, 2018
Summary
We developed a portable pulsed magnetic field system that operates reliably in noisy environments. This compact device generates strong magnetic fields, proving stable even during high-power laser experiments.
Area of Science:
- Physics
- Engineering
- Experimental Science
Background:
- Pulsed magnetic field generation is crucial for various scientific experiments.
- Noisy experimental environments, such as high-power laser facilities, pose significant challenges for sensitive equipment.
Purpose of the Study:
- To develop a portable pulsed magnetic field generation system.
- To ensure reliable operation in electromagnetically noisy environments.
Main Methods:
- Incorporated noise-reduction techniques: shielding, self-power capability, and a high-capability semiconductor switch.
- Designed a compact system (less than 0.5 m linear dimensions).
- Tested system stability in a high-power laser experiment (Gekko-XII, 600 J laser shots).
Main Results:
- Successfully developed a portable pulsed magnetic field generation system.
- The system demonstrated stable operation in a high-noise environment.
- Achieved magnetic fields of several tesla sustained for tens of microseconds over centimeter scales.
Conclusions:
- The developed portable pulsed magnetic field system is suitable for deployment in challenging, high-noise experimental settings.
- The system's robust design ensures reliable performance, enabling advanced research in noisy environments.
Related Concept Videos
Magnetic Fields
7.4K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
A magnetic field is defined by the force that a charged particle experiences...
7.4K
Magnetic Field of a Solenoid
5.9K
A solenoid is a conducting wire coated with an insulating material, wound tightly in the form of a helical coil. The magnetic field due to a solenoid is the vector sum of the magnetic fields due to its individual turns. Therefore, for an ideal solenoid, the magnetic field within the solenoid is directly proportional to the number of turns per unit length and the current. Conversely, the magnetic field outside the solenoid is zero.
Consider a solenoid with 100 turns wrapped around a cylinder of...
Consider a solenoid with 100 turns wrapped around a cylinder of...
5.9K
Magnetic Field Lines
5.8K
The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the magnetic field lines forms a closed loop. The field lines emerge from the north pole (N), loop around to the south pole (S), and continue through the bar magnet back to the north pole.
Magnetic field lines follow several hard-and-fast rules:
Magnetic field lines follow several hard-and-fast rules:
5.8K
Energy In A Magnetic Field
2.8K
If a magnetic field is sustained, there must be a current in a closed circuit or loop, implying some energy has been spent in creating the field. If this energy is not dissipated via the circuit's resistance, it is stored in the field.
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
2.8K
Magnetic Field Of A Current Loop
6.4K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
6.4K
Magnetic Field due to Moving Charges
11.7K
A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
11.7K

