Irksome
发表于 2025-3-23 12:41:02
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狗窝
发表于 2025-3-23 15:00:49
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剧毒
发表于 2025-3-23 19:17:25
Squid Fundamentals,ms of lowtransition-temperature (T.) superconductors. An integrated superconducting input coil couples the SQUID to the signal source. Typical dc SQUIDs operating at 4.2K have a magnetic flux noise of 10.Ф. Hz. corresponding to a noise energy of 10. JHz. at frequencies f above the 1/f noise knee, wh
散步
发表于 2025-3-24 00:03:03
Advanced Squid Read-Out Electronics,design of the read-out electronics decisively determines the performance of the whole sensor. In standard read-out electronics, a cooled impedance-matching transformer between SQUID and preamplifier, and a flux modulation technique are employed. Recently, several novel SQUID read-out concepts withou
碳水化合物
发表于 2025-3-24 03:29:21
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MEEK
发表于 2025-3-24 10:31:39
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绅士
发表于 2025-3-24 12:09:21
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Mettle
发表于 2025-3-24 18:45:28
Pulse Tube Refrigerators: A Cooling Option for High-Tc SQUIDs,is described which was used to operate a high-T. SQUID gradiometer. In order to reduce vibrations and interference noise at the cold head, the refrigerator inlet is connected by a flexible tube of several meters length to the compressor and its rotary valve. Two YBCO microwave SQUIDs, configured as
使迷醉
发表于 2025-3-24 22:16:23
High-Resolution Magnetic Imaging: Cellular Action Currents and Other Applications, biological sample. While multiple measurements with such systems can be used to localize dipole-like sources with millimeter accuracy, the ability to resolve two adjacent dipoles, ., the imaging resolution, is limited to approximately the source-to-coil separation of 1 to 2 cm. While such imaging r
VAN
发表于 2025-3-25 02:32:30
The Volume Conductor Problem in Biomagnetism,eeded that describe the electrical properties of the sources and the surrounding region, the so-called volume conductor. The sources can be described as arrangements of current dipoles. Commonly, the volume conductor is described by a compartment model, the compartments being piece-wise homogeneous.