ICALEPCS2019 - List of Authors (Smith, W.)

Paper	Title	Page
MOPHA136	Integration of Optical Beam Loss Monitor for CLARA	544
	W. Smith STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom A.D. Brynes, F. Jackson STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom A.D. Brynes, F. Jackson, J. Wolfenden Cockcroft Institute, Warrington, Cheshire, United Kingdom J. Wolfenden The University of Liverpool, Liverpool, United Kingdom
	The detection of beam loss events in accelerators is an important task for machine and personal protection, and for optimization of beam trajectory. An optical beam loss monitor (oBLM) being developed by the Cockcroft Institute at Daresbury Laboratory required integration with the rest of the controls and timing system of the site’s electron accelerator, CLARA (Compact Linear Accelerator for Research and Applications). [1] This paper presents the design and implementation of an inexpensive solution using a Domino Ring Sampling device from PSI. Signals from the oBLM are acquired and can be processed to resolve beam loss events to a resolution of 0.2 m.
	Poster MOPHA136 [0.817 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA136
About •	paper received ※ 30 September 2019 paper accepted ※ 11 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPHA137	Timing Synchronization and Controls Integration for ESS Detector Readout	547
	W. Smith STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom S. Alcock, J.M.C. Nilsson ESS, Copenhagen, Denmark
	The European Spallation Source (ESS) is a new facility being built in Lund, Sweden, which when finished will be the world’s most powerful neutron source. STFC has an in-kind project with the Detector group at ESS to provide timing and control systems integration for the detector data readout system. This paper describes how time is synchronised and distributed to the readout system from the ESS timing system, and how EPICS is used to implement a controls interface exposing the functionality of detector front ends.
	Poster MOPHA137 [1.180 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA137
About •	paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUDPP04	Data Acquisition and Virtualisation of the CLARA Controls System	852
	R.F. Clarke, G. Cox, M.D. Hancock, P.W. Heath, S. Kinder, N. Knowles, B.G. Martlew, A. Oates, P.H. Owens, W. Smith, J.T.G. Wilson STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom S. Kinder DSoFt Solutions Ltd, Warrington, United Kingdom
	The CLARA experiment at the STFC, Daresbury laboratory has just completed its first successful exploitation period. The CLARA controls system is being rapidly deployed as CLARA enters its next development phase and our current infrastructure is becoming hard to maintain. Virtualization of the server infrastructure will allow the rapid deployment, recovery and testing of systems infrastructure. This talk will review our experience of migrating several key services and IOCs to a virtualized environment. KVM and LXD have been evaluated against our current system and Ansible has been used to automate many tasks that were normally done by hand. The Archiver Appliance is being exploited beyond its original deployment and is a critical component of several analysis tool-chains. Virtualization allows development, maintenance and deployment of the archiver without disrupting its users. Virtualization is also used to manage the CLARA Virtual Accelerator. The Virtual Accelerator can now run with many instances proving useful for scientists. Originally, it was limited to one instance per server.
	Slides TUDPP04 [0.945 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUDPP04
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA037	Status of the CLARA Control System	1161
	W. Smith, R.F. Clarke, G. Cox, M.D. Hancock, P.W. Heath, S. Kinder, N. Knowles, B.G. Martlew, A. Oates, P.H. Owens, J.T.G. Wilson STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
	CLARA (Compact Linear Accelerator for Research and Applications) is a test facility for Free Electron Laser (FEL) research and other applications at STFC’s Daresbury Laboratory [1]. The control system for CLARA is a distributed control system based upon the EPICS [2] software framework. The control system builds on experience gained from previous EPICS based facilities at Daresbury including ALICE (formerly ERLP) [3] and VELA [4]. This paper presents the current status of the CLARA control system, experiences during beam exploitation and developments and future plans for the next phases of the facility.
	Poster WEPHA037 [1.093 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA037
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Integration of Optical Beam Loss Monitor for CLARA

544

W. Smith
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
A.D. Brynes, F. Jackson
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
A.D. Brynes, F. Jackson, J. Wolfenden
Cockcroft Institute, Warrington, Cheshire, United Kingdom
J. Wolfenden
The University of Liverpool, Liverpool, United Kingdom

The detection of beam loss events in accelerators is an important task for machine and personal protection, and for optimization of beam trajectory. An optical beam loss monitor (oBLM) being developed by the Cockcroft Institute at Daresbury Laboratory required integration with the rest of the controls and timing system of the site’s electron accelerator, CLARA (Compact Linear Accelerator for Research and Applications). [1] This paper presents the design and implementation of an inexpensive solution using a Domino Ring Sampling device from PSI. Signals from the oBLM are acquired and can be processed to resolve beam loss events to a resolution of 0.2 m.

Poster MOPHA136 [0.817 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA136

About •

paper received ※ 30 September 2019 paper accepted ※ 11 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPHA137

Timing Synchronization and Controls Integration for ESS Detector Readout

547

W. Smith
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
S. Alcock, J.M.C. Nilsson
ESS, Copenhagen, Denmark

The European Spallation Source (ESS) is a new facility being built in Lund, Sweden, which when finished will be the world’s most powerful neutron source. STFC has an in-kind project with the Detector group at ESS to provide timing and control systems integration for the detector data readout system. This paper describes how time is synchronised and distributed to the readout system from the ESS timing system, and how EPICS is used to implement a controls interface exposing the functionality of detector front ends.

Poster MOPHA137 [1.180 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA137

About •

paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUDPP04

Data Acquisition and Virtualisation of the CLARA Controls System

852

R.F. Clarke, G. Cox, M.D. Hancock, P.W. Heath, S. Kinder, N. Knowles, B.G. Martlew, A. Oates, P.H. Owens, W. Smith, J.T.G. Wilson
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
S. Kinder
DSoFt Solutions Ltd, Warrington, United Kingdom

The CLARA experiment at the STFC, Daresbury laboratory has just completed its first successful exploitation period. The CLARA controls system is being rapidly deployed as CLARA enters its next development phase and our current infrastructure is becoming hard to maintain. Virtualization of the server infrastructure will allow the rapid deployment, recovery and testing of systems infrastructure. This talk will review our experience of migrating several key services and IOCs to a virtualized environment. KVM and LXD have been evaluated against our current system and Ansible has been used to automate many tasks that were normally done by hand. The Archiver Appliance is being exploited beyond its original deployment and is a critical component of several analysis tool-chains. Virtualization allows development, maintenance and deployment of the archiver without disrupting its users. Virtualization is also used to manage the CLARA Virtual Accelerator. The Virtual Accelerator can now run with many instances proving useful for scientists. Originally, it was limited to one instance per server.

Slides TUDPP04 [0.945 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUDPP04

About •

paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA037

Status of the CLARA Control System

1161

W. Smith, R.F. Clarke, G. Cox, M.D. Hancock, P.W. Heath, S. Kinder, N. Knowles, B.G. Martlew, A. Oates, P.H. Owens, J.T.G. Wilson
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom

CLARA (Compact Linear Accelerator for Research and Applications) is a test facility for Free Electron Laser (FEL) research and other applications at STFC’s Daresbury Laboratory [1]. The control system for CLARA is a distributed control system based upon the EPICS [2] software framework. The control system builds on experience gained from previous EPICS based facilities at Daresbury including ALICE (formerly ERLP) [3] and VELA [4]. This paper presents the current status of the CLARA control system, experiences during beam exploitation and developments and future plans for the next phases of the facility.

Poster WEPHA037 [1.093 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA037

About •

paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)