Paragraf, the UK-based company pioneering the mass production of graphene-based electronics with standard semiconductor processes, has expanded its online store offerings to include cryogenic graphene-based magnetic field sensors and a compatible data acquisition unit for direct sale to labs and industry worldwide.
Image Credit: Paragraf
The Paragraf online store (store.paragraf.com) opened in April 2024 for the purpose of selling Paragraf’s unique Graphene-based Field Effect Transistors (“GFETs”). With the success of that effort and the expansion of graphene Hall sensors (GHS) production capacity, the company has added the cryogenic GHS range and the Multi-sensor Test Unit (MiST), a self-contained, turn-key solution for the easy configuration and operation of GHS.
“The launch of Paragraf’s online store has served to introduce our GFET to global research and commercial markets,” said, Peter Davies, Paragraf’s Commercial Director. “Being able to sell our GHS product line alongside the GFET in the store demonstrates further our ability to deliver a graphene-based electronics future.”
Cryogenic GHS take advantage of graphene’s superior thermal robustness and have a wide range of uses in quantum computing, particle accelerators and medical equipment. Graphene also enables magnetic sensing across a wide range of field strengths, so they can be used to detect stray fields that can disrupt operation of quantum computers, as well as to calibrate the magnets used to manipulate particles in high energy particle accelerators.
Paragraf originally launched a GHS optimised for cryogenic applications in June 2021. This measured fields up to 7 Tesla (T) at temperatures down to 3 Kelvin (K) and was supplied in a 9 mm square package.
The new range of sensors suitable for these environments, available on the store, come in a smaller 3mm square package, operate up to 30 T, and down to mK temperatures. They are differentiated by the range of fields that they are optimised for:
- GHS-X01, optimised for operation in extremely large fields of over 30 Tesla such as those produced by the cryogenically cooled magnets in nuclear fusion reactors, designed to contain plasma that is hotter than the sun.
- The GHS-X03, an ultra-sensitive model optimized for small magnetic fields, being used in environments such as quantum computers to detect microTesla (µT) changes affecting processes at fractions of a degree above absolute zero, improving error mitigation.
- GHS-X02 which combines high sensitivity with a broad dynamic range from low to reasonably high fields, being used in particle accelerators and MRI manufacturing to characterize magnets being produced at high resolution.
The current models are provided on a 200 mm flexible PCB for reliable integration into a range of these systems.
The MiST unit offers users the best readings from our range of sensors, with configurability over the data acquisition and signal processing. This enables users to experience the full benefit of our graphene-based magnetic field sensors in a range of environments from room temperature all the way down to almost absolute zero. Online MiST orders include a test probe which also serves as a reference design for connecting the cryogenic sensors to the unit.
Paragraf has inventory of all the products on the store and while fulfilment is committed within 30 days, fulfilment of existing products has a median fulfilment time of just this normally happens within five working days.