IBIC2023 - List of Keywords (booster)

Paper	Title	Other Keywords	Page
MO3C03	Development of the SLS 2.0 BPM System	electronics, electron, storage-ring, linac	15
	B. Keil, R. Ditter, F. Marcellini, G.M. Marinkovic, J. Purtschert, M. Rizzi, M. Roggli, D. Stephan, X. Wang PSI, Villigen PSI, Switzerland
	After more than 20 years of operation, the storage ring of the Swiss Light Source (SLS) will be replaced. The new ring called SLS 2.0 will have 40 times higher brilliance than SLS, thanks to an innovative low-emittance magnet lattice and a beam pipe with smaller aperture. For SLS 2.0, the ageing SLS BPM electronics will be incrementally replaced for the whole accelerator, including linac, booster, transfer lines and storage ring. This contribution presents the development status and latest prototype test results of the SLS 2.0 BPM system, including BPM pickups, mechanics, and electronics.
	Slides MO3C03 [5.240 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-MO3C03
About •	Received ※ 09 September 2023 — Revised ※ 10 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 21 September 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEP002	Study of Visible Synchrotron Radiation Monitor on SOLEIL Booster	extraction, synchrotron, emittance, synchrotron-radiation	331
	A. Moutardier, G. Cauchon, M. Chevrot, Z. Fan, N. Hubert, S. Kubsky, M. Labat, M. Thomasset SOLEIL, Gif-sur-Yvette, France
	In the scope of SOLEIL II, the booster must also be upgraded to reduce from 130 to 5~nm.rad the emittance of the beam delivered to the ring. Control of the emittance in the booster will become crucial to ensure the nominal performance of the storage ring injection. The SOLEIL I booster is already equipped with a Visible Synchrotron Radiation Monitor (MRSV). This equipment, made of an extraction mirror and a simple optical system, was originally planned to be used only for beam presence verification but has not been used routinely for operation since the commissioning in 2005. The control and acquisition systems had to be refreshed to be usable again and allow the beam size measurement along the booster energy ramp. The extraction mirror was replaced due to unexpected degradation leading to a second spot appearing on the camera. This paper traces back the MRSV upgrades from understanding the cause of mirror degradation until mirror replacement and the first proper beam visualisation, achieved at the beginning of 2023.
	Poster WEP002 [1.550 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP002
About •	Received ※ 04 September 2023 — Revised ※ 09 September 2023 — Accepted ※ 12 September 2023 — Issue date ※ 16 September 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEP014	Measuring Electromagnet Polarity Using Magnetic Remanence	power-supply, quadrupole, MMI, dipole	354
	K.P. Wootton ANL, Lemont, Illinois, USA
	Funding: This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Large accelerator systems typically include many individually powered electromagnets. An important activity prior to commissioning with beam is verifying that the polarity of the installed magnets matches the design lattice. In the present work, we motivate the measurement of magnet polarity in a manner that is electrically safe, by measuring the magnetic remanence of iron yokes of normal conducting electromagnets. This has been used to confirm the polarities of iron-dominated dipole and quadrupole electromagnets at the Linac Extension Area at the Advanced Photon Source.
	Poster WEP014 [0.504 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP014
About •	Received ※ 24 July 2023 — Revised ※ 08 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 29 September 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEP015	Synchrotron Light Monitor for the Advanced Photon Source Booster Synchrotron	synchrotron, photon, electron, synchrotron-radiation	358
	K.P. Wootton, W. Berg, W.P. Burns III, J.R. Calvey, J.C. Dooling, L. Erwin, A.H. Lumpkin, N. Sereno, S.E. Shoaf, S.G. Wang ANL, Lemont, Illinois, USA
	Funding: This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. A new synchrotron light monitor has been tested for the booster synchrotron of the Advanced Photon Source. Visible light synchrotron radiation is collected by a mirror on a path tangential to the electron beam orbit, and directed to an optical imaging system and camera. This is planned to be a non-intercepting, transverse beam-size monitor even with the higher stored beam charges (~17 nC) needed for the Advanced Photon Source Upgrade. In the present work, we describe the present synchrotron radiation diagnostic layout. An analysis of the synchrotron radiation power on the mirror, the optical layout with components, and features of the control system will be presented.
	Poster WEP015 [1.148 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP015
About •	Received ※ 09 August 2023 — Revised ※ 08 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 02 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEP025	A Study of the Gain of Microchannel Plates in the Ionization Profile Monitors at Fermilab	electron, ECR, instrumentation, vacuum	405
	R.M. Thurman-Keup, C.E. Lundberg, D. Slimmer, J.R. Zagel Fermilab, Batavia, Illinois, USA
	Funding: This work was produced by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. One of the on-going issues with the use of microchannel plates (MCP) in the ionization profile monitors (IPM) at Fermilab is the significant decrease in gain over time. There are several possible issues that can cause this. Historically, the assumption has been that this is aging, where the secondary emission yield (SEY) of the pore surface changes after some amount of extracted charge. Recent literature searches have brought to light the possibility that this is an initial ’scrubbing’ effect whereby adsorbed gasses are removed from the MCP pores by the removal of charge from the MCP. This paper discusses the results of studies conducted on the IPMs in the Main Injector at Fermilab.
	Poster WEP025 [7.408 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP025
About •	Received ※ 08 September 2023 — Revised ※ 10 September 2023 — Accepted ※ 11 September 2023 — Issue date ※ 18 September 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MO3C03

Development of the SLS 2.0 BPM System

electronics, electron, storage-ring, linac

15

B. Keil, R. Ditter, F. Marcellini, G.M. Marinkovic, J. Purtschert, M. Rizzi, M. Roggli, D. Stephan, X. Wang
PSI, Villigen PSI, Switzerland

After more than 20 years of operation, the storage ring of the Swiss Light Source (SLS) will be replaced. The new ring called SLS 2.0 will have 40 times higher brilliance than SLS, thanks to an innovative low-emittance magnet lattice and a beam pipe with smaller aperture. For SLS 2.0, the ageing SLS BPM electronics will be incrementally replaced for the whole accelerator, including linac, booster, transfer lines and storage ring. This contribution presents the development status and latest prototype test results of the SLS 2.0 BPM system, including BPM pickups, mechanics, and electronics.

Slides MO3C03 [5.240 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-MO3C03

About •

Received ※ 09 September 2023 — Revised ※ 10 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 21 September 2023

Cite •

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

WEP002

Study of Visible Synchrotron Radiation Monitor on SOLEIL Booster

extraction, synchrotron, emittance, synchrotron-radiation

331

A. Moutardier, G. Cauchon, M. Chevrot, Z. Fan, N. Hubert, S. Kubsky, M. Labat, M. Thomasset
SOLEIL, Gif-sur-Yvette, France

In the scope of SOLEIL II, the booster must also be upgraded to reduce from 130 to 5~nm.rad the emittance of the beam delivered to the ring. Control of the emittance in the booster will become crucial to ensure the nominal performance of the storage ring injection. The SOLEIL I booster is already equipped with a Visible Synchrotron Radiation Monitor (MRSV). This equipment, made of an extraction mirror and a simple optical system, was originally planned to be used only for beam presence verification but has not been used routinely for operation since the commissioning in 2005. The control and acquisition systems had to be refreshed to be usable again and allow the beam size measurement along the booster energy ramp. The extraction mirror was replaced due to unexpected degradation leading to a second spot appearing on the camera. This paper traces back the MRSV upgrades from understanding the cause of mirror degradation until mirror replacement and the first proper beam visualisation, achieved at the beginning of 2023.

Poster WEP002 [1.550 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP002

About •

Received ※ 04 September 2023 — Revised ※ 09 September 2023 — Accepted ※ 12 September 2023 — Issue date ※ 16 September 2023

Cite •

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

WEP014

Measuring Electromagnet Polarity Using Magnetic Remanence

power-supply, quadrupole, MMI, dipole

354

K.P. Wootton
ANL, Lemont, Illinois, USA

Funding: This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
Large accelerator systems typically include many individually powered electromagnets. An important activity prior to commissioning with beam is verifying that the polarity of the installed magnets matches the design lattice. In the present work, we motivate the measurement of magnet polarity in a manner that is electrically safe, by measuring the magnetic remanence of iron yokes of normal conducting electromagnets. This has been used to confirm the polarities of iron-dominated dipole and quadrupole electromagnets at the Linac Extension Area at the Advanced Photon Source.

Poster WEP014 [0.504 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP014

About •

Received ※ 24 July 2023 — Revised ※ 08 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 29 September 2023

Cite •

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

WEP015

Synchrotron Light Monitor for the Advanced Photon Source Booster Synchrotron

synchrotron, photon, electron, synchrotron-radiation

358

K.P. Wootton, W. Berg, W.P. Burns III, J.R. Calvey, J.C. Dooling, L. Erwin, A.H. Lumpkin, N. Sereno, S.E. Shoaf, S.G. Wang
ANL, Lemont, Illinois, USA

Funding: This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
A new synchrotron light monitor has been tested for the booster synchrotron of the Advanced Photon Source. Visible light synchrotron radiation is collected by a mirror on a path tangential to the electron beam orbit, and directed to an optical imaging system and camera. This is planned to be a non-intercepting, transverse beam-size monitor even with the higher stored beam charges (~17 nC) needed for the Advanced Photon Source Upgrade. In the present work, we describe the present synchrotron radiation diagnostic layout. An analysis of the synchrotron radiation power on the mirror, the optical layout with components, and features of the control system will be presented.

Poster WEP015 [1.148 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP015

About •

Received ※ 09 August 2023 — Revised ※ 08 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 02 October 2023

Cite •

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

WEP025

A Study of the Gain of Microchannel Plates in the Ionization Profile Monitors at Fermilab

electron, ECR, instrumentation, vacuum

405

R.M. Thurman-Keup, C.E. Lundberg, D. Slimmer, J.R. Zagel
Fermilab, Batavia, Illinois, USA

Funding: This work was produced by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy.
One of the on-going issues with the use of microchannel plates (MCP) in the ionization profile monitors (IPM) at Fermilab is the significant decrease in gain over time. There are several possible issues that can cause this. Historically, the assumption has been that this is aging, where the secondary emission yield (SEY) of the pore surface changes after some amount of extracted charge. Recent literature searches have brought to light the possibility that this is an initial ’scrubbing’ effect whereby adsorbed gasses are removed from the MCP pores by the removal of charge from the MCP. This paper discusses the results of studies conducted on the IPMs in the Main Injector at Fermilab.

Poster WEP025 [7.408 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP025

About •

Received ※ 08 September 2023 — Revised ※ 10 September 2023 — Accepted ※ 11 September 2023 — Issue date ※ 18 September 2023

Cite •

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