Thermal shield of the zero-boil-off cryostat for a 1.5 T magnetic resonance imaging magnet
N Suman, AN Siddiquee, S Kar - Cryogenics, 2021 - Elsevier
The image quality in a MRI magnet greatly depends on the mechanical, thermal and
electromagnetic performance of the thermal shield in presence of any time varying field. A …
electromagnetic performance of the thermal shield in presence of any time varying field. A …
A versatile 4 K insert for characterization of the superconducting joints
A Nandawadekar, M Singh, S Kar - Review of Scientific Instruments, 2023 - pubs.aip.org
A multi-coil superconducting magnet is the heart of any modern Magnetic Resonance
Imaging (MRI) scanner. The superconducting magnet in MRI produces a highly …
Imaging (MRI) scanner. The superconducting magnet in MRI produces a highly …
Thermal and electrical behaviour of the persistent current switch for a whole-body superconducting MRI magnet
A prototype persistent current switch is developed for an actively shielded whole-body 1.5 T
MRI magnet having an operating current of∼ 500 A. The switch is developed using a six …
MRI magnet having an operating current of∼ 500 A. The switch is developed using a six …
High-power cold diodes for the protection of a 1.5 T superconducting MRI magnet system
V Soni, A Gupta, S Kar - Semiconductor Science and Technology, 2022 - iopscience.iop.org
Cold diodes play a crucial role in various operational aspects of the superconducting
magnet of magnetic resonance imaging (MRI) scanners. The forward and reverse …
magnet of magnetic resonance imaging (MRI) scanners. The forward and reverse …
Study of power diodes used for MRI applications
A Nandawadekar, M Singh, S Kar - Journal of Power Electronics, 2024 - Springer
Rectifier diodes play a vital role in the operational aspects of a superconducting magnet,
and their selection and characterization are crucial for optimal performance and reliability …
and their selection and characterization are crucial for optimal performance and reliability …
Quench induced eddy current and mechanical stresses in the bobbin and thermal shield of the 1.5 T MRI magnet system
An actively shielded 1.5 T superconducting MRI magnet is designed for a whole-body
clinical scanner. During a quench, its fast-decaying field induces a strong eddy current in all …
clinical scanner. During a quench, its fast-decaying field induces a strong eddy current in all …
Effect of Thermal Strain, Induced by Cryogenic Cooling, on a High Homogeneity Superconducting Magnet for MRI Applications
SR Thekkethil, V Rastogi, S Kar - Indian Journal of Engineering …, 2022 - op.niscpr.res.in
The heart of the modern whole body MRI scanners is a superconducting magnet producing
the required magnetic field with high homogeneity. The superconducting magnet operates at …
the required magnetic field with high homogeneity. The superconducting magnet operates at …