Fast electron paramagnetic resonance imaging (EPRI) in the CW EPR mode using rapid-scan in the presence of rotating gradients and direct detection with transmit/receive and data processing in a digital signal processing platform
First Claim
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1. An electron paramagnetic resonance imaging system, comprising:
- means for continuously irradiating a sample with RF irradiation;
means for imposing on the sample a sinusoidally varying magnetic field along with rotating gradients for spatial encoding;
means for directly detecting signal data from the sample, without using field modulation, while irradiating the sample with RF radiation continuously, said means for directly detecting having means for sweeping the sinusoidally varying magnetic field;
a digital gradients and sweep controller operationally coupled with said means for imposing on the sample a sinusoidally varying magnetic field along with rotating gradients for spatial encoding, said means for directly detecting signal data from the sample, and said means for processing the signal data,said digital gradients and sweep controller configured to automatically maintain the relative speeds for the sweep current and the gradient currents and adjust the timing for detecting signal data; and
means for processing the signal data, using means including a digital signal processor.
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Abstract
An electron paramagnetic resonance imaging system that includes means for continuously irradiating a sample with RF irradiation; means for imposing on the sample a sinusoidally varying magnetic field along with rotating gradients for spatial encoding; means for directly detecting signal data from the sample, without using field modulation, while irradiating the sample with RF radiation continuously, the means for directly detecting having means for sweeping the sinusoidally varying magnetic field; and means for transmitting, receiving and processing the signal data, using means including a digital signal processor.
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Citations
22 Claims
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1. An electron paramagnetic resonance imaging system, comprising:
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means for continuously irradiating a sample with RF irradiation; means for imposing on the sample a sinusoidally varying magnetic field along with rotating gradients for spatial encoding; means for directly detecting signal data from the sample, without using field modulation, while irradiating the sample with RF radiation continuously, said means for directly detecting having means for sweeping the sinusoidally varying magnetic field; a digital gradients and sweep controller operationally coupled with said means for imposing on the sample a sinusoidally varying magnetic field along with rotating gradients for spatial encoding, said means for directly detecting signal data from the sample, and said means for processing the signal data, said digital gradients and sweep controller configured to automatically maintain the relative speeds for the sweep current and the gradient currents and adjust the timing for detecting signal data; and means for processing the signal data, using means including a digital signal processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification