Fiber Positioning Test

Positioning errors and efficiency in fiber spectrographs

The use of wide-field multi-object fiber-input spectrographs for large redshift surveys introduces the possibility of variations in the observed signal-to-noise ratio across the survey area due to errors in positioning the fibers with respect to the target image positions, leading to position-dependent errors in the survey catalog. This paper brings together a comprehensive description of the s...

Damage Detection of Carbon Fiber-reinforced Concrete Under Bending Test

Global Positioning System over Fiber for Buoyant Cable Antennas

uoyant cable antennas (BCAs) are long, towed antennas used by submarines to receive RF signals. Deployed while the submarine is operating at depth, the cable is managed so that the internal antenna element or elements are positioned near the ocean surface. The received signal is sent to the submarine for processing over a transmission line within the cable. In this article, we examine the desig...

A Fiber Detector Radiation Hardness Test

An intense 146 MeV/c pion beam was stopped inside a scintillating fiber detector made out of 12 planes with 16 pixels each, where every pixel consists out of 8 × 8 scintillating fibers of 500 μm diameter dense packed. The detector was irradiated for 52 hours to more than 1 Mrad at its center. Before and directly after the irradiation the detector has been exposed to a particle beam to compare t...

Design and Application of a Fiber Pullout Test for Examining Controlled Interfaces in Fiber Reinforced Polymers

page 62 Abstract: A fiber pullout test for examining controlled interfaces in fiber reinforced polymers has been designed and demonstrated. This test has been utilized in determining interfacial fracture toughness for sapphire/epoxy single fiber composite specimens. Some of these specimens incorporated a self-assembled monolayer at the sapphire/ epoxy interface as a means of adhesion control—th...