Twisted Pair Wiring

Note: Includes additional thermal anchoring bobbin stages to pulse tube.

Wire consists of two sections: copper wires from RT to 4K and superconducting wires NbTi/CuNi from 4K to MXC.

Note: Includes a 25-pin micro-D breakout connector below 4K Flange.

Together with Attocube, we have developed a special low-ohmic cable for their positioners and scanners. This set is not based on superconducting wires and can be used to operate the Attocube devices also at room temperature (positioner wire resistance < 5 Ohm). The length can be configured to each temperature stage. Standard lines include 1–3 pairs for drive lines and 4–12 pairs for other uses.

Note: Includes an additional thermal anchoring stage to the pulse tube.

The TWP cable can have additional 25-pin micro-D connector breakouts at any flange to make the installation of customer devices easy. In the standard installation, the micro-D connector termination from the higher temperature serves as a breakout post and it mates with the micro-D connector termination of the continuing TWP wiring cable.

Our TWP cables can be equipped with the electromagnetic (EM) shielding. We have a solution where we use a stainless-steel sleeve around the wires together with a shielded housing for the micro-D connectors.

Note: The shielding is not available for Attocube wiring.

The QDevil‘s QFilter is a compact multi-stage low-pass filter with 24 lines. It rejects noise and ensures lowest possible electron temperatures in the lines going to your quantum electronics devices. This filter concept originates from Harvard University and the University of Copenhagen.

A QFilter contains two filter banks, one with RC circuits and one with LC circuits. For filtering 24 lines these two banks are connected in series using a short jumper cable. For filtering 48 lines, the QFilter can be pigtailed without the use of the jumper cable.

Note: The QFilter is not available for Attocube wiring.