✦ LIBER ✦

Magnet Design with High B0 Homogeneity for Fast-Field-Cycling NMR Applications

✍ Scribed by O. Lips; A.F. Privalov; S.V. Dvinskikh; F. Fujara

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 295 KB
Volume: 149
Category: Article
ISSN: 1090-7807
DOI: 10.1006/jmre.2000.2279

No coin nor oath required. For personal study only.

✦ Synopsis

The design, construction, and performance of a low-inductance solenoidal coil with high B 0 homogeneity for fast-field-cycling NMR is presented. It consists of six concentric layers. The conductor width is varied to minimize the B 0 inhomogeneity in the volume of the sample. This is done using an algorithm which takes the real shape of the conductor directly into account. The calculated coil geometry can be manufactured easily using standard computerized numeric control equipment, which keeps the costs low. The coil is liquid cooled and produces a B 0 field of 0.95 T at 800 A . The field inhomogeneity in a cylindrical volume (diameter 5 mm, length 10 mm) is about 10 ppm, and the inductance is 190 µH. Switching times below 200 µs can be achieved. During 6 months of operation the coil has shown good stability and reliability.

📜 SIMILAR VOLUMES

Coil Design for Large-Volume High-B1Homo

Coil Design for Large-Volume High-B1Homogeneity for Solid-State NMR Applications

✍ A.F. Privalov; S.V. Dvinskikh; H.-M. Vieth 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 137 KB

The design of a solenoidal NMR coil with high-B 1 homogeneity turns and thus to significant field variations in the vicinity for high-frequency solid-state NMR is described. The coil is made of the conductor. This effect is particularly pronounced at of thin ribbon of continuously variable width. Th

Design and construction of a prototype h

Design and construction of a prototype high-power B0 insert coil for field-cycled imaging in superconducting MRI systems

✍ Jamu K. Alford; Timothy J. Scholl; William B. Handler; Blaine A. Chronik 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 234 KB

Evolution of magnetization in aB1 field.

Evolution of magnetization in aB1 field. I. The impact ofB0/B1 inhomogeneity and fast chemical exchange in high-resolution NMR

✍ Sz�ntay, Csaba 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 460 KB 👁 2 views

Since the classical treatment by Torrey in 1949 of the problem of how magnetization evolves in a continuously applied B radiofrequency field, the topic has 1 received relatively little attention in the nuclear magnetic resonance literature. This article focuses on the behavior of the macroscopic mag