Heiden C
Institute for Thin Film and Ion Technology, Forschungszentrum Jülich GmbH, Federal Republic of Germany.
Clin Phys Physiol Meas. 1991;12 Suppl B:67-73. doi: 10.1088/0143-0815/12/b/009.
This report describes developments carried out at the author's institution concerning SQUIDs and SQUID systems, based on both conventional niobium technology and high-Tc superconductors. The developments are aimed at increasing the acceptance of SQUID systems by the user from the technical point of view. Reliability and ease of operation are improved by simpler electronics, faster response and reduced number of leads in multichannel systems, and higher operating temperature. The developments include a DC SQUID with FM read-out, resulting in the most compact SQUID electronics so far, a planar microwave biased RF SQUID with very high slew rate, and efforts to create reliable SQUIDs with sufficient sensitivity for biomagnetic applications that are cooled by liquid nitrogen.
本报告描述了作者所在机构基于传统铌技术和高温超导体在超导量子干涉仪（SQUID）及SQUID系统方面所取得的进展。这些进展旨在从技术角度提高用户对SQUID系统的接受度。通过更简单的电子设备、更快的响应速度、减少多通道系统中的引线数量以及提高工作温度，可靠性和操作便利性得到了改善。进展包括具有调频读出功能的直流SQUID，这使得SQUID电子设备迄今最为紧凑；具有非常高转换速率的平面微波偏置射频SQUID；以及致力于制造对生物磁应用具有足够灵敏度且能用液氮冷却的可靠SQUID。
