IBIC2022 - List of Authors (McCallum, M.S.)

Paper	Title	Page
MOP09	Towards Higher Stability in Large Scale Cavity BPM Systems	40
	A. Lyapin, M.S. McCallum JAI, Egham, Surrey, United Kingdom A. Aryshev, K.O. Kruchinin KEK, Ibaraki, Japan
	Funding: This work is supported by Royal Society International Exchanges Grant number IEC\R3\213050 In this contribution we consider a possible solution to long-term stability issues common in cavity BPM systems. The method will see a wider use active in-situ calibration systems injecting a tone into the measurement channel. We plan to compensate the bulk of the beam generated signal and so potentially extend the dynamic range of the electronics, reduce the amount of wakefield seen by the beam. The signal matching the real beam can then be used for mimicking the beam and calibrating out any drifts of the whole sensing and processing chain. We present the concept, give some simulated results and consider possible hardware solutions.
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2022-MOP09
About •	Received ※ 07 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 11 September 2022 — Issue date ※ 12 November 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOP39	Development of Compact Radio Frequency Sources	144
	M.S. McCallum, A. Lyapin JAI, Egham, Surrey, United Kingdom
	Funding: This work is supported by STFC’s Impact Acceleration Account scheme. Our group is developing a family of compact radio frequency sources aiming to cover 50 MHz to 20 GHz with several models. The primary goal is to provide an alternative to using expensive laboratory generators in permanent installations. In addition, we work towards providing a higher specification than similar telecommunications devices as this is a typical requirement in accelerator instrumentation. We take a minimalistic approach with only a network interface planned, assuming that such a device operates remotely in a large facility. An EPICS interface is in the works for monitoring and control. In this paper, we present the results of rapid prototyping with XMicrowave components. The first measurements show encouraging phase noise performance and spectral purity.
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2022-MOP39
About •	Received ※ 08 September 2022 — Revised ※ 12 September 2022 — Accepted ※ 13 September 2022 — Issue date ※ 02 November 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Towards Higher Stability in Large Scale Cavity BPM Systems

40

A. Lyapin, M.S. McCallum
JAI, Egham, Surrey, United Kingdom
A. Aryshev, K.O. Kruchinin
KEK, Ibaraki, Japan

Funding: This work is supported by Royal Society International Exchanges Grant number IEC\R3\213050
In this contribution we consider a possible solution to long-term stability issues common in cavity BPM systems. The method will see a wider use active in-situ calibration systems injecting a tone into the measurement channel. We plan to compensate the bulk of the beam generated signal and so potentially extend the dynamic range of the electronics, reduce the amount of wakefield seen by the beam. The signal matching the real beam can then be used for mimicking the beam and calibrating out any drifts of the whole sensing and processing chain. We present the concept, give some simulated results and consider possible hardware solutions.

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2022-MOP09

About •

Received ※ 07 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 11 September 2022 — Issue date ※ 12 November 2022

Cite •

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

MOP39

Development of Compact Radio Frequency Sources

144

M.S. McCallum, A. Lyapin
JAI, Egham, Surrey, United Kingdom

Funding: This work is supported by STFC’s Impact Acceleration Account scheme.
Our group is developing a family of compact radio frequency sources aiming to cover 50 MHz to 20 GHz with several models. The primary goal is to provide an alternative to using expensive laboratory generators in permanent installations. In addition, we work towards providing a higher specification than similar telecommunications devices as this is a typical requirement in accelerator instrumentation. We take a minimalistic approach with only a network interface planned, assuming that such a device operates remotely in a large facility. An EPICS interface is in the works for monitoring and control. In this paper, we present the results of rapid prototyping with XMicrowave components. The first measurements show encouraging phase noise performance and spectral purity.

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2022-MOP39

About •

Received ※ 08 September 2022 — Revised ※ 12 September 2022 — Accepted ※ 13 September 2022 — Issue date ※ 02 November 2022

Cite •

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