Instrumentation and Control Selection for the 12 GeV Hall-B Magnets at Jefferson Lab
Abstract
Here, as part of the Jefferson Lab 12 GeV accelerator upgrade, the Experimental Physics Hall B detector system requires two superconducting magnets – a Torus and a Solenoid. The specifications required maximum space for the detectors which led to the choice of conduction cooling for each magnet. The Torus consists of 6 trapezoidal 'race-track'-type coils connected in series with an operating current of 3770 A. The Solenoid is an actively shielded 5 Tesla magnet consisting of 5 coils connected in series operating at 2416 A. Within the hall the two magnets are located in close proximity to each other and are surrounded by particle detectors. We describe the philosophy behind the instrumentation selection and control design that accounts for this proximity and other challenging working conditions. We describe the choice of sensor technologies, as well as the control and data acquisition methods. The magnet power and cryogenic control sub-systems are implemented using Allen Bradley Control Logix 1756-L72 Programmable Logic Controllers. Sensor instrumentation read-backs are routed into the PLC via National Instruments cRIO hardware (Field Programmable Gate Arrays or FPGA/RT application) using Jefferson Lab designed FPGA-based multi-sensor-excitation-chassis. Configuration, monitoring, and alarm handlers for the magnet systems are provided via an Experimentalmore »
- Authors:
-
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1461096
- Report Number(s):
- JLAB-PHY-18-2652; DOE/OR/23177-4358
Journal ID: ISSN 0953-2048; TRN: US1901952
- Grant/Contract Number:
- AC05-06OR23177
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Superconductor Science and Technology
- Additional Journal Information:
- Journal Volume: 31; Journal Issue: 9; Journal ID: ISSN 0953-2048
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; conduction cooled; superconducting magnet; magnetic field; instrumentation; protection; 12 GeV
Citation Formats
Ghoshal, Probir K., Bachimanchi, Ramakrishna, Fair, Ruben, Kashy, David, Rajput-Ghoshal, Renuka, Hogan, John, Sandoval, Nicholas, and Young, Glenn. Instrumentation and Control Selection for the 12 GeV Hall-B Magnets at Jefferson Lab. United States: N. p., 2018.
Web. doi:10.1088/1361-6668/aad277.
Ghoshal, Probir K., Bachimanchi, Ramakrishna, Fair, Ruben, Kashy, David, Rajput-Ghoshal, Renuka, Hogan, John, Sandoval, Nicholas, & Young, Glenn. Instrumentation and Control Selection for the 12 GeV Hall-B Magnets at Jefferson Lab. United States. https://doi.org/10.1088/1361-6668/aad277
Ghoshal, Probir K., Bachimanchi, Ramakrishna, Fair, Ruben, Kashy, David, Rajput-Ghoshal, Renuka, Hogan, John, Sandoval, Nicholas, and Young, Glenn. Tue .
"Instrumentation and Control Selection for the 12 GeV Hall-B Magnets at Jefferson Lab". United States. https://doi.org/10.1088/1361-6668/aad277. https://www.osti.gov/servlets/purl/1461096.
@article{osti_1461096,
title = {Instrumentation and Control Selection for the 12 GeV Hall-B Magnets at Jefferson Lab},
author = {Ghoshal, Probir K. and Bachimanchi, Ramakrishna and Fair, Ruben and Kashy, David and Rajput-Ghoshal, Renuka and Hogan, John and Sandoval, Nicholas and Young, Glenn},
abstractNote = {Here, as part of the Jefferson Lab 12 GeV accelerator upgrade, the Experimental Physics Hall B detector system requires two superconducting magnets – a Torus and a Solenoid. The specifications required maximum space for the detectors which led to the choice of conduction cooling for each magnet. The Torus consists of 6 trapezoidal 'race-track'-type coils connected in series with an operating current of 3770 A. The Solenoid is an actively shielded 5 Tesla magnet consisting of 5 coils connected in series operating at 2416 A. Within the hall the two magnets are located in close proximity to each other and are surrounded by particle detectors. We describe the philosophy behind the instrumentation selection and control design that accounts for this proximity and other challenging working conditions. We describe the choice of sensor technologies, as well as the control and data acquisition methods. The magnet power and cryogenic control sub-systems are implemented using Allen Bradley Control Logix 1756-L72 Programmable Logic Controllers. Sensor instrumentation read-backs are routed into the PLC via National Instruments cRIO hardware (Field Programmable Gate Arrays or FPGA/RT application) using Jefferson Lab designed FPGA-based multi-sensor-excitation-chassis. Configuration, monitoring, and alarm handlers for the magnet systems are provided via an Experimental Physics Instrumentation & Control System interface (EPICS). Failure Modes and Effects Analysis (FMEA) and the requirement to monitor critical parameters during operation guided the selection of instrumentation and associated hardware. The design of the quench protection and voltage tap sub-systems was driven by the anticipated level of voltages developed during a magnet quench. The primary hard-wired quench detection and protection sub-system together with the secondary PLC-based protection sub-system is also discussed. The successful commissioning and subsequent performance of these magnets demonstrates the robustness of the design and implementation approach that was adopted by the Jefferson Lab team and serves as an excellent 'How To' guide for future projects of this size and complexity.},
doi = {10.1088/1361-6668/aad277},
journal = {Superconductor Science and Technology},
number = 9,
volume = 31,
place = {United States},
year = {Tue Jul 10 00:00:00 EDT 2018},
month = {Tue Jul 10 00:00:00 EDT 2018}
}
Web of Science
Works referenced in this record:
Overview of Torus Magnet Coil Production at Fermilab for the Jefferson Lab 12-GeV Hall B Upgrade
journal, June 2016
- Krave, S.; Velev, G.; Makarov, A.
- IEEE Transactions on Applied Superconductivity, Vol. 26, Issue 4
Structural Analysis of Thermal Shields During a Quench of a Torus Magnet for the 12 GeV Upgrade
journal, June 2015
- Pastor, O.; Willard, T.; Ghoshal, P. K.
- IEEE Transactions on Applied Superconductivity, Vol. 25, Issue 3
Commissioning Validation of CLAS-12 Torus Magnet Protection and Cryogenic Safety System
journal, September 2018
- Ghoshal, Probir K.; Biallas, George H.; Fair, Ruben J.
- IEEE Transactions on Applied Superconductivity, Vol. 28, Issue 6
Electrical Properties of High Temperature Insulation Coatings under various Pressures at 298 K and 77 K
conference, January 2007
- Cakiroglu, O.; Arda, L.
- SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION, AIP Conference Proceedings
Design and Manufacture of the Conduction Cooled Torus Coils for The Jefferson Laboratory 12-GeV Upgrade
journal, June 2015
- Wiseman, M.; Elementi, L.; Elouadhiri, L.
- IEEE Transactions on Applied Superconductivity, Vol. 25, Issue 3
Predicting winding stresses for wound coils of non-linear orthotropic material
journal, January 2004
- de Hoog, F. R.; Yuen, W. Y. D.; Cozijnsen, M.
- Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 218, Issue 1
A Hybrid Approach for Quantifying the Winding Process and Material Effects on Sheet Coil Deformation
journal, June 2004
- Li, Shunping; Cao, Jian
- Journal of Engineering Materials and Technology, Vol. 126, Issue 3
Stresses in superconducting solenoids
journal, May 1977
- Arp, V.
- Journal of Applied Physics, Vol. 48, Issue 5
High-precision magnetic field mapping with a three-dimensional Hall probe for a T-violation experiment in Kμ3 decay
journal, December 1997
- Ikeda, Tokihiro; Chapman, Michael D.; Igarashi, Youichi
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 401, Issue 2-3
The genesis of the Wheatstone bridge
journal, February 2001
- Ekelof, S.
- Engineering Science & Education Journal, Vol. 10, Issue 1
Torus CLAS12-Superconducting Magnet Quench Analysis
journal, June 2014
- Kashikhin, V. S.; Elouadhiri, L.; Ghoshal, P. K.
- IEEE Transactions on Applied Superconductivity, Vol. 24, Issue 3
Superconducting Magnet Power Supply and Hard-Wired Quench Protection at Jefferson Lab for 12 GeV Upgrade
journal, December 2017
- Ghoshal, Probir K.; Bachimanchi, Ramakrishna; Fair, Ruben J.
- IEEE Transactions on Applied Superconductivity, Vol. 27, Issue 8
Protection of Hardware: Powering Systems (Power Converter, Normal Conducting, and Superconducting Magnets)
text, January 2016
- Pfeffer, H.; Flora, B.; Wolff, D.
- CERN, Geneva
Works referencing / citing this record:
Development of FPGA-based multi-sensor excitation low voltage (MSELV) chassis at Jefferson Lab
journal, December 2019
- Ghoshal, P. K.; Bachimanchi, R.; Bonneau, P.
- Review of Scientific Instruments, Vol. 90, Issue 12