动态核极化谱仪的技术改造

THE IMPROVEMENT OF DNP SPECTROMETER

介绍了动态核极化 (DNP)谱仪数字系统的改造和一套的射频发射和接收系统的建立 .谱仪射频通道的 90°脉冲宽度为 5μs,能完全满足固体交叉极化和大功率去耦的实验要求 .

The improvement of digital system of DNP spectrometer and establishment of a new system of transmission and receiver are introduced in this article. The π/ 2 pulse width is less than 5μs, which meets the requirement of CP and high powe r decoupling. The DNP enhancement curve can be obtained automatically. \;