The APS Radio Frequency Test Stand Control System

2005 ◽  
Author(s):  
R.T. Daly ◽  
F.C. Vong ◽  
M.R. Kraimer
Keyword(s):  
Control System ◽  
Radio Frequency ◽  
Test Stand ◽  
Frequency Test

scholarly journals Large-Scale Dataset for Radio Frequency-Based Device-Free Crowd Estimation

Data ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 52 ◽  
Author(s):  
Abdil Kaya ◽  
Stijn Denis ◽  
Ben Bellekens ◽  
Maarten Weyn ◽  
Rafael Berkvens
Keyword(s):  
Control System ◽  
Radio Frequency ◽  
Large Scale ◽  
Reference Data ◽  
Added Value ◽  
Size Estimation ◽  
Music Festival ◽  
Large Scale Dataset ◽  
Access Control System ◽  
Device Free

Organisers of events attracting many people have the important task to ensure the safety of the crowd on their venue premises. Measuring the size of the crowd is a critical first step, but often challenging because of occlusions, noise and the dynamics of the crowd. We have been working on a passive Radio Frequency (RF) sensing technique for crowd size estimation, and we now present three datasets of measurements collected at the Tomorrowland music festival in environments containing thousands of people. All datasets have reference data, either based on payment transactions or an access control system, and we provide an example analysis script. We hope that future analyses can lead to an added value for crowd safety experts.

scholarly journals Cryogenic control system operational experience at SNS

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
M. Howell ◽  
S.-H. Kim ◽  
M. Martinez ◽  
K. White
Keyword(s):  
Control System ◽  
Radio Frequency ◽  
Neutron Source ◽  
Operating Experience ◽  
Lessons Learned ◽  
Operational Experience ◽  
Reliable Control ◽  
Spallation Neutron Source ◽  
Superconducting Radio Frequency ◽  
Machine Interface

AbstractThe helium cryogenic system at Spallation Neutron Source (SNS) provides cooling to 81 superconducting radio frequency cavities. To support the operation of the cryogenic facility, a highly reliable control system consisting of software, hardware, and Human Machine Interface (HMI) has been developed and improved during the first fifteen years of operation. Integrating the cryogenic control system with other subsystems of the SNS complex is an important aspect to the success of the operation. The operating experience, lessons learned and recommendations to consider for future facilities will be detailed in this paper.

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