Accessory

MEG Cap 1.0

A semi-rigid sensor cap for QZFM Gen-2 OPMs, built on the ANT 64-channel Waveguard layout.

Overview

  • Built for QZFM Gen‑2 OPMs
  • ANT 64Ch Waveguard layout
  • Semi-rigid construction
  • Custom sizes available

Price: $950
Leadtime: few weeks; email

MEG Cap 1.0 fitted with QZFM sensor holders

Using the cap

MEG Cap 1.0’s main purpose is to enable initial exploratory experiments with an OPM‑MEG system. A more advanced version of the cap that enables sensor co-registration is still under development.

Note

With MEG Cap 1.0, sensor movement is a major concern. To obtain good data, it is essential to null residual fields inside the MSR as much as possible (< 1 nT) and strain relieve the sensor cables over the back. Please see the Low Noise Coil Driver page for more information on field nulling.

CAD files

Contact us if you are interested in building your own cap or if you have new ideas. The CAD files for the holder can be found below, and email us if you are simply looking for standalone sensor holders.

Background reading from the QuSpin blog.