CERN Accelerating science

Published Articles
Title	Novel measurement technique for the electromagnetic characterization of coating materials in the sub-THz frequency range
Author(s)	Passarelli, Andrea (CERN ; Darmstadt, Tech. U.) ; Bartosik, Hannes (CERN) ; Rumolo, Giovanni (CERN) ; Vaccaro, Vittorio Giorgio (INFN, Naples) ; Masullo, Maria Rosaria (INFN, Naples) ; Koral, Can (INFN, Naples) ; Papari, Gian Paolo (Naples U. ; INFN, Naples) ; Andreone, Antonello (Naples U. ; INFN, Naples) ; Boine-Frankenheim, Oliver (Darmstadt, Tech. U.)
Publication	2018
Number of pages	11
In:	Phys. Rev. Accel. Beams 21 (2018) 103101
DOI	10.1103/PhysRevAccelBeams.21.103101
Subject category	Accelerators and Storage Rings
Abstract	This paper describes a reliable, handy, and inexpensive measurement system to characterize, in the sub-THz frequency range, the coating materials used in the beam pipes of accelerators. The method is based on time domain measurements of an electromagnetic wave passing through a waveguide having a thin central slab, where the coating material is deposited on both sides. Two horn antennas are integrated on both sides of the device to optimize the signal collection and detection. This novel technique is tested on slabs coated with a nonevaporable getter (NEG) and allows to evaluate the surface impedance in the frequency range from 0.1 to 0.3 THz.
Copyright/License	publication: © 2018-2025 authors (License: CC-BY-4.0)

Corresponding record in: Inspire