arXiv subjects

Cameron Baribeau

Publications and source records attributed to Cameron Baribeau.

3 recordsLinked to original sources

arXiv2025

A reflexion on the potential evolution of the CLS machine complex : A "Gedanken" experiment

In the next 5 to 10 years, new fourth generation light sources will be coming online either from upgrades or as brand new facilities. The question regarding the competitiveness and the usability of a third generation light source is certainly in the mind of the scientific personnel, which includes both the beamline and the accelerator staff of any third Gen Research Infrastructures. At the Canadian Light Source (CLS), Accelerator Operation and Development (AOD) staff are responsible for the daily operation of the machines, their upgrades which extend to long term development and shall also raise awareness on their possibilities. The boundaries of this mind experiment are 1) we must use CLS infrastructure, 2) identify the existence of the knowledge to realize an idea, 3) the realization, with whom, how, with which funds and under which administrative supervision is out of bounds.

physics.acc-ph↗

arXiv2022

A Neural Network Model of a Quasi-Periodic Elliptically Polarizing Undulator in Universal Mode

Machine learning has recently been applied and deployed at several light source facilities in the domain of Accelerator Physics. We introduce an approach based on machine learning to produce a fast-executing model that predicts the polarization and energy of the radiated light produced at an insertion device. This paper demonstrates how a machine learning model can be trained on simulated data and later calibrated to a smaller, limited measured data set, a technique referred to as transfer learning. This result will enable users to efficiently determine the insertion device settings for achieving arbitrary beam characteristics.

physics.acc-ph↗

arXiv2020

Measurement of magnetic fields using the voltage generated by a vibrating wire

A vibrating wire may be used as an instrument with a variety of applications, one of which is the measurement of magnetic fields. Often, the magnetic fields are determined by measuring the amplitude of the wire vibration under the action of a Lorentz force. Though generally adequate, this approach may be inconvenient in certain circumstances. One of these occurs when it is necessary to measure the amplitude of high-frequency vibration, as the amplitude is expected to decrease linearly with frequency, and thus becomes harder to measure. Another example may be found in situations where the sensor must operate over a wide range of vibration frequencies. In this case the sensor will be unresponsive to specific frequencies of wire vibration, which are determined by the placement of the sensor. This means that for the instrument to be robust, the sensor must be precisely mobile, or multiple sensors must be used. Here a technique which may be used to supplement the displacement sensor is described. This technique makes use of the voltage generated by the motion of the wire in the magnetic field under measurement. It is predicted that the technique may be more suitable for measurements requiring high frequency vibration, and is sensitive to all frequencies of vibration. Measurements of a magnetic field obtained using this technique are compared to those found using only a displacement sensor, and the benefits and drawbacks of the technique are discussed.

physics.acc-ph↗