Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A point-sensitive NMR imaging system (10) in which a main solenoid coil (11) produces a relatively strong and substantially uniform magnetic field and a pair of perturbing coils (PZ1 and PZ2) powered by current in the same direction superimposes a pair of relatively weak perturbing fields on the main field to produce a resultant point of minimum field strength at a desired location in a direction along the Z-axis. Two other pairs of perturbing coils (PX1, PX2; PY1, PY2) superimpose relatively weak field gradients on the main field in directions along the X- and Y-axes to locate the minimum field point at a desired location in a plane normal to the Z-axes. An RF generator (22) irradiates a tissue specimen in the field with radio frequency energy so that desired nuclei in a small volume at the point of minimum field strength will resonate.
Point Sensitive NMR Imaging System Using a Magnetic Field Configuration with a Spatial Minimum
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A point-sensitive NMR imaging system (10) in which a main solenoid coil (11) produces a relatively strong and substantially uniform magnetic field and a pair of perturbing coils (PZ1 and PZ2) powered by current in the same direction superimposes a pair of relatively weak perturbing fields on the main field to produce a resultant point of minimum field strength at a desired location in a direction along the Z-axis. Two other pairs of perturbing coils (PX1, PX2; PY1, PY2) superimpose relatively weak field gradients on the main field in directions along the X- and Y-axes to locate the minimum field point at a desired location in a plane normal to the Z-axes. An RF generator (22) irradiates a tissue specimen in the field with radio frequency energy so that desired nuclei in a small volume at the point of minimum field strength will resonate.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A point-sensitive NMR imaging system (10) in which a main solenoid coil (11) produces a relatively strong and substantially uniform magnetic field and a pair of perturbing coils (PZ1 and PZ2) powered by current in the same direction superimposes a pair of relatively weak perturbing fields on the main field to produce a resultant point of minimum field strength at a desired location in a direction along the Z-axis. Two other pairs of perturbing coils (PX1, PX2; PY1, PY2) superimpose relatively weak field gradients on the main field in directions along the X- and Y-axes to locate the minimum field point at a desired location in a plane normal to the Z-axes. An RF generator (22) irradiates a tissue specimen in the field with radio frequency energy so that desired nuclei in a small volume at the point of minimum field strength will resonate.
Point Sensitive NMR Imaging System Using a Magnetic Field Configuration with a Special Minimum
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1010
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1010
Book Description
Official Gazette of the United States Patent and Trademark Office
Author:
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 500
Book Description
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 500
Book Description
Federal Register
Author:
Publisher:
ISBN:
Category : Administrative law
Languages : en
Pages : 1426
Book Description
Publisher:
ISBN:
Category : Administrative law
Languages : en
Pages : 1426
Book Description
Computers, Control & Information Theory
Author:
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 126
Book Description
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 126
Book Description
Catalog of Government Patents
Author:
Publisher:
ISBN:
Category : Patents, Government-owned
Languages : en
Pages : 918
Book Description
Publisher:
ISBN:
Category : Patents, Government-owned
Languages : en
Pages : 918
Book Description
Index of Patents Issued from the United States Patent and Trademark Office
Author:
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 2566
Book Description
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 2566
Book Description
Power-Loss Optimized Field-Free Line Generation for Magnetic Particle Imaging
Author: Matthias Weber
Publisher:
ISBN: 9783945954065
Category :
Languages : en
Pages : 82
Book Description
Magnetic Particle Imaging (MPI) is a novel medical imaging technology that is able to acquire the distribution of superparamagnetic iron oxide nanoparticles in real-time with high spatial and temporal resolution. Spatial encoding is realized by a magnetic field configuration generating a field-free point (FFP). Therefore, the FFP is moved through the field of view (FOV). However, at low particle concentrations the signal-to-noise ratio (SNR) decreases and therefore image quality worsens. An enhanced encoding scheme uses instead of the FFP the concept of a field-free line (FFL), whereby a gain of sensitivity of one order of magnitude can be realized. Simulation studies approximate power consumption to a minimum and improve field homogeneity with the result that fast Radon-based reconstruction techniques are feasible. On the basis of these studies, this book describes the manufacturing of an optimized scanner topology realizing an excellent field quality with the help of customized curved rectangular coils. Furthermore, the power loss is efficiently minimized.
Publisher:
ISBN: 9783945954065
Category :
Languages : en
Pages : 82
Book Description
Magnetic Particle Imaging (MPI) is a novel medical imaging technology that is able to acquire the distribution of superparamagnetic iron oxide nanoparticles in real-time with high spatial and temporal resolution. Spatial encoding is realized by a magnetic field configuration generating a field-free point (FFP). Therefore, the FFP is moved through the field of view (FOV). However, at low particle concentrations the signal-to-noise ratio (SNR) decreases and therefore image quality worsens. An enhanced encoding scheme uses instead of the FFP the concept of a field-free line (FFL), whereby a gain of sensitivity of one order of magnitude can be realized. Simulation studies approximate power consumption to a minimum and improve field homogeneity with the result that fast Radon-based reconstruction techniques are feasible. On the basis of these studies, this book describes the manufacturing of an optimized scanner topology realizing an excellent field quality with the help of customized curved rectangular coils. Furthermore, the power loss is efficiently minimized.
Optical Magnetometry
Author: Dmitry Budker
Publisher: Cambridge University Press
ISBN: 1107010357
Category : Science
Languages : en
Pages : 431
Book Description
Comprehensive coverage of the principles, technology and diverse applications of optical magnetometry for graduate students and researchers in atomic physics.
Publisher: Cambridge University Press
ISBN: 1107010357
Category : Science
Languages : en
Pages : 431
Book Description
Comprehensive coverage of the principles, technology and diverse applications of optical magnetometry for graduate students and researchers in atomic physics.