Faculty Advisor
Bogdanov, Gene
Faculty Advisor
Ludwig, Reinhold
Abstract
The operation of MRI is based on the nuclear magnetic resonance principle. Applying a static magnetic field followed by an oscillating magnetic pulse on a volume of tissue results in the emission of an electromagnetic field at the Larmor frequency. The purpose of this MQP is to design a dual stage low noise amplifier to amplify the radio frequency signals detected by the receiver coil. In order for the amplifier to function properly, it should have a noise figure of about 0.5dB, a gain of about 30dB, and a low input impedance. In addition, it should be unconditionally stable over a broad range of frequencies. Two amplifiers for 1.5T and 4.7T MRI scanners are designed and measurements were conducted to ensure their functionality.
Publisher
Worcester Polytechnic Institute
Date Accepted
January 2007
Major
Electrical and Computer Engineering
Project Type
Major Qualifying Project
Copyright Statement
Access to this report is limited to members of the WPI community. Please contact a project advisor or their department to request access
Accessibility
Restricted-WPI community only
Advisor Department
Electrical and Computer Engineering
Advisor Program
Electrical and Computer Engineering