Frank X Li,John P Voccio,Michael Sammartino et al.
Frank X Li et al.
This paper presents a high-resolution magnetic field mapping system in development that is capable of collecting spatial magnetic field data for NMR magnets. An NMR probe was designed and built with a resonant frequency of 5.73 MHz. The mea...
Frank X Li,John P Voccio,Michael Sammartino et al.
Frank X Li et al.
This paper presents a high-resolution magnetic field mapping system in development that is capable of collecting spatial magnetic field data for NMR magnets. An NMR probe was designed and built with a resonant frequency of 5.73 MHz. The mea...
Optimization of Time- and Code-Division-Multiplexed Readout for Athena X-IFU [0.03%]
用于Athena X-IFU的时分和码分复用读取优化
W B Doriese,S R Bandler,S Chaudhuri et al.
W B Doriese et al.
Readout of a large, spacecraft-based array of superconducting transition-edge sensors (TESs) requires careful management of the layout area and power dissipation of the cryogenic-circuit components. We present three optimizations of our tim...
Effects of uniaxial stress on Mo and Mo/Cu bilayer superconducting transitions [0.03%]
单轴应力对钼及钼/铜双层超导转变的影响
Felix T Jaeckel,Kari L Kripps,Dan McCammon et al.
Felix T Jaeckel et al.
Transition-edge sensors (TES) are widely used as sensing elements in X-ray microcalorimeters. Further improvement of their energy resolution hinges on a thorough understanding of the transition surface (as function of temperature, current, ...
A 1.5-T/75-mm Magic-Angle-Spinning NMR Magnet [0.03%]
一台1.5特斯拉/75毫米 magic angle spinning (MAS) 核磁共振磁场设备
John Voccio,Seungyong Hahn,Youngjae Kim et al.
John Voccio et al.
We are currently working on a program to complete a 1.5-T/75-mm RT (room temperature) bore MAS (magic-angle-spinning) NMR (nuclear magnetic resonance) magnet. The MAS magnet comprises a z-axis 0.866-T solenoid and an x-axis 1.225-T dipole c...
Weijun Yao,Juan Bascuñán,Seungyong Hahn et al.
Weijun Yao et al.
In this paper, we report our progress in the development of a low cost, liquid-helium-free MgB2 superconducting MRI magnet. Several technical issues related to the construction of such a magnet to operate in persistent current mode are disc...
A REBCO Persistent-Current Switch (PCS): Test Results and Switch Heater Performance [0.03%]
一种ReBCo型持续电流开关（PCS）：测试结果与切换加热器性能
Philip C Michael,Timing Qu,John Voccio et al.
Philip C Michael et al.
In this paper, we report preliminary results of our on-going effort to develop a superconducting persistent-current switch (PCS) for REBCO pancake coils that will be operated in liquid helium. In the first part of this paper, we briefly des...
An 800-MHz all-REBCO Insert for the 1.3-GHz LTS/HTS NMR Magnet Program-A Progress Report [0.03%]
800 MHz全REBCO插入磁体的进展报告——用于1.3 GHz LTS/HTS NMR混合磁体项目
Juan Bascuñán,Seungyong Hahn,Thibault Lecrevisse et al.
Juan Bascuñán et al.
A critical component of the 1.3-GHz nuclear magnetic resonance magnet (1.3 G) program, currently ongoing at the Francis Bitter Magnet Laboratory, Plasma Science and Fusion Center, Massachusetts Institute of Technology, and now approaching i...
A Stack of YBCO Annuli, Thin Plate and Bulk, for Micro-NMR Spectroscopy [0.03%]
用于微核磁共振光谱的YBCO环、薄片和块体堆栈
Seungyong Hahn,John Voccio,Dong Keun Park et al.
Seungyong Hahn et al.
A new annulus magnet, the latest in a series of compact magnets being developed for NMR spectroscopy applications at the MIT Francis Bitter Magnet Laboratory, was built and tested in a bath of liquid nitrogen at 77 K. The magnet, YP2800, a ...
Energy calibration of high-resolution X-Ray TES microcalorimeters with 3 eV optical photons [0.03%]
利用3eV光学光子对高分辨率X射线TES微热量计进行能量校准
F T Jaeckel,C V Ambarish,N Christensen et al.
F T Jaeckel et al.
With the improving energy resolution of transitionedge sensor (TES) based microcalorimeters, performance verification and calibration of these detectors has become increasingly challenging, especially in the energy range below 1 keV where f...