Researchers have tested the performance of a new device that boosts particle signals.
Researchers have created a new device that acts like a superconductivity switch, helping boost the signal of tiny particles in particle colliders
For scientists to more accurately observe the behavior of these particles, these weak electrical signals, or currents, need to be multiplied by an instrument capable of turning a faint electrical flicker into a real jolt. To prepare the nanocryotron for a collider experiment will take some more work because of the high magnetic fields involved. While today's particle detectors can withstand magnetic fields of several tesla in strength, this switch's performance degrades in high magnetic fields.
The nanocryotron was created by using electron beam lithography, a kind of stenciling technique that uses a beam of electrons to remove a polymer film to expose a particular region of interest. That region of interest is then etched using plasma ion etching. "This work is especially important for collider experiments, such as those that will be performed at the Electron-Ion Collider at Brookhaven National Laboratory. There, superconducting nanowire detectors, positioned close to the beams, would require microelectronics immune to magnetic fields," said Argonne Distinguished Fellow and group leader Zein-Eddine Meziani.
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