Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Reexamination Certificate
2007-02-06
2007-02-06
Guterrez, Diego (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
Reexamination Certificate
active
11196279
ABSTRACT:
A configuration of an NMR apparatus is provided. In the NMR apparatus, a magnetic field space of higher uniformity is generated by split superconducting magnets. At the same time, it is provided with a cryo probe excellent in cooling capability and sensitivity between two superconducting solenoid coils constructed in very close proximity to each other. For this purpose, a probe coil provided between the two superconducting solenoid coils is so constructed that the following is implemented: a certain distance is ensured between a substrate with a coil formed thereon and another, and the substrates and spacer substrates for cooling are alternately laminated. The spacer substrates are cooled by a cold head of sapphire. When the probe coil is inserted in the same direction as a sample tube (direction perpendicular to the static magnetic field), the spacer substrates cannot be coupled directly by the cold head of sapphire. Therefore, they are cooled through a fixed substrate for thermal conduction of sapphire coupled with the cold head.
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Hasegawa Haruhiro
Ochi Hisaaki
Okada Michiya
Saitoh Kazuo
Wakuda Tsuyoshi
Antonelli, Terry Stout & Kraus, LLP.
Guterrez Diego
Hitachi , Ltd.
Vargas Dixomara
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