An actively compensated 8 nT-level magnetic shielding system for 10-m atom interferometer

2021 ◽  
Vol 92 (8) ◽  
pp. 083201
Author(s):  
Yu-Hang Ji ◽  
Lin Zhou ◽  
Si-Tong Yan ◽  
Chuan He ◽  
Chao Zhou ◽  
...  
2011 ◽  
Vol 47 (10) ◽  
pp. 4270-4273 ◽  
Author(s):  
Kunihisa Tashiro ◽  
Hiroyuki Wakiwaka ◽  
Keishiro Matsumura ◽  
Keishi Okano

2013 ◽  
Vol 325-326 ◽  
pp. 353-358 ◽  
Author(s):  
Thosdeekoraphat Thanaset ◽  
Santalunai Samran ◽  
Thongsopa Chanchai

The performance improved of focusing deep hyperthermia inductive heating for breast cancer treatment using magnetic fluid nanoparticles with magnetic shielding system has been presented in the paper and the results are discussed. It is a technique challenge in hyperthermia therapy is to control locally heat the tumor region up to an appropriate temperature to destroy cancerous cells, without damaging the surrounding healthy tissue by using magnetic fluid nanoparticles and cylindrical metal shielding with aperture. We show that the magnetic field intensity can be controlled by changing the aperture size to suitable. In addition, the position of the heating can be controlled very well with the magnetic fluid together with shielding system. In the simulation, the inductive applicator is a ferrite core with diameter of 7 cm and excited by 4 MHz signal. Results have shown that the temperature increments depend on the magnetic fluid nanoparticles. In addition, the magnetic field intensity without damaging the surrounding healthy tissue when used magnetic shielded system. These results demonstrate that it is possible to achieve higher temperatures and to focus magnetic field intensity where the nanoparticles and magnetic shielding system are used.


2020 ◽  
Vol 1647 ◽  
pp. 012002
Author(s):  
V M Amoskov ◽  
A M Bazarov ◽  
V P Kukhtin ◽  
E A Lamzin ◽  
I Y Rodin ◽  
...  

1997 ◽  
pp. 1447-1450 ◽  
Author(s):  
Shuetu Haseyama ◽  
Masahiro Kojima ◽  
Mamoru Satoh ◽  
Shuji Yoshizawa ◽  
Shinichi Shibuya ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-12
Author(s):  
Chanchai Thongsopa ◽  
Thanaset Thosdeekoraphat

An analysis and design of magnetic shielding system are presented for breast cancer treatment with hyperthermia inductive heating. It is a technique to control magnetic field intensity and relocate the heating area by using a rectangular shielding with aperture. The distribution of the lossy medium was analyzed using the finite difference time domain method. Theoretical analyses investigate whether a novel shielded system is effective for controlling the magnetic field distribution or heating position. Theoretical and experimental investigations were carried out using a lossy medium. The inductive applicator is a ferrite core with diameter of 7 cm, excited by 4 MHz signal and a maximum output power of 750 W. The results show that size of heating region can be controlled by varying the aperture size. Moreover, the investigation result revealed that the position of heating region can be relocated by changing the orientation of the ferrite core with shielded system inx-axis direction. The advantage of the magnetic shielding system is that it can be applied to prevent the side effects of hyperthermia cancer treatment by inductive heating.


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