ELECTRON SPIN RESONANCE SPECTROMETER AND METHOD FOR USING SAME
First Claim
1. An electron spin resonance spectrometer comprising:
- a bridge to transmit an excitation frequency and to receive a signal frequency;
a probe electrically connected to the bridge and comprising;
a first conductor in electrical communication with the bridge to transmit the signal frequency to the bridge;
a shorting member electrically connected to the first conductor to transmit the excitation frequency to a sample, to produce the signal frequency, and to transmit the signal frequency to the first conductor; and
a second conductor electrically connected to the shorting member; and
a magnet disposed proximate to the probe.
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Accused Products
Abstract
An electron spin resonance spectrometer includes a bridge to transmit an excitation frequency and to receive a signal frequency; a probe electrically connected to the bridge and comprising: a first conductor in electrical communication with the bridge to transmit the signal frequency to the bridge; a shorting member electrically connected to the first conductor to transmit the excitation frequency to a sample, to produce the signal frequency, and to transmit the signal frequency to the first conductor; and a second conductor electrically connected to the shorting member; and a magnet disposed proximate to the probe.
100 Citations
20 Claims
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1. An electron spin resonance spectrometer comprising:
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a bridge to transmit an excitation frequency and to receive a signal frequency; a probe electrically connected to the bridge and comprising; a first conductor in electrical communication with the bridge to transmit the signal frequency to the bridge; a shorting member electrically connected to the first conductor to transmit the excitation frequency to a sample, to produce the signal frequency, and to transmit the signal frequency to the first conductor; and a second conductor electrically connected to the shorting member; and a magnet disposed proximate to the probe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for acquiring an electron spin resonance spectrum, the method comprising:
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disposing a sample in an electron spin resonance spectrometer comprising; a bridge comprising a sample arm and a reference arm; a probe electrically connected to the bridge and comprising; a first conductor electrically connected to the bridge; a shorting member electrically connected to the first conductor; and a second conductor electrically connected to the shorting member; a detector electrically connected to the bridge; a magnet disposed proximate to the probe and the sample; and a modulation coil interposed between the magnet and the sample; transmitting an excitation frequency from an excitation source to the sample through the sample arm and the shorting member; modulating a magnetic field present at the sample from the magnet at a reference frequency applied to the modulation coil; absorbing, by the sample, the excitation frequency; producing a signal frequency at the shorting member; transmitting the signal frequency from the shorting member toward the detector; combining the signal frequency from the sample arm and the excitation frequency from the reference arm to produce a detection frequency; and detecting, by the detector, the detection frequency as a function of changing the excitation frequency or a magnetic field strength present at the sample to acquire the electron spin resonance spectrum, wherein the sample is disposed external to the probe, the magnet, and the modulation coil.
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Specification