Opera 3d Vector Fields
Jalisa Landgren
Generally speaking, the magnetic shielding process consists of a partial or total installation of special steel plates on the walls of a room. While a partial installation is limited only to one wall, a complete installation provides shielding for all walls (including floor and roof).
The design of a (partial or total) shielded room should also carefully consider the features of the MRI system and requires therefore an accurate computing analysis which could foresee the effects on the confinement of the dispersed magnetic field and most of all the field homogeneity of the MRI system, particularly where the employment of spectroscopic techniques is envisaged.
Physical model: individuation of the specific features of the electromagnetic problem, in terms of geometry and materials, characterized by first magnetization curves, which are certified by competent bodies.
Thanks to powerful work stations, it is possible to simulate and optimize magnetic shielding thickness, in order to comply with project certifications relating to dispersed magnetic induction field, while ensuring field homogeneity in the whole volume of the investigated object.
It shields any type of MR systems against environmental AC/DC magnetic interferences generated by subways, trains, elevators, moving metal, electrical distribution equipment causing unacceptable image quality. Due to such interferences many potential MRI sites are rejected.
Diamags Flash detects the interfering magnetic fields with a fluxgate probe and generates a counter field that eliminates the interference. Diamags Flash is composed by: main, slave, probe and correction coils. The coils, in Helmholtz configuration, can be installed either on the MRI system, hidden by the carters, or in the false ceiling/floor and in the walls.
The use of radiations in diagnostic imaging has allowed in the recent years to achieve excellent levels of diagnosis and prevention. The latest generation of instruments allows today a minimal exposure to ionizing radiations, which nonetheless are still a risk for operators and patients which can be minimized using appropriate protection methods and systems.
ITEL designs and installs Ionizing Radiations Shielding systems made with absorbing materials (anti-X and gamma barriers) of sufficient width to completely contain the radiation field in any point accessible to personnel and patients, within the limits of the applicable norms.
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