IPAC2017 - List of Authors (Molloy, S.)

Paper	Title	Page
MOPIK040	Value Engineering of an Accelerator Design During Construction	592
	E. Bargalló, M. Eshraqi, M. Lindroos, S. Molloy, D.C. Plostinar, A. Sunesson ESS, Lund, Sweden F. Gerigk CERN, Geneva, Switzerland
	Value engineering is an important part of the process of designing and realising large-scale installations such as high power accelerators. This typically occurs during the later part of the design stage of the system, however such exercises may also be requested by funding bodies at later stages in order to manage project contingency. Naturally, the later this is done, the more challenging it becomes. In this paper we report on a recently concluded Value Engineering effort at the European Spallation Source. The challenges presented by the initiation of such an exercise during the construction phase are discussed. In addition, we present and discuss the various options that we examined, and indicate the philosophy and figures of merit used to narrow down these options. The final conclusion will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPIK040
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THPAB038	DYNAC: Extensions, Updates, and Upgrades	3784
	S. Molloy, E. Tanke ESS, Lund, Sweden
	DYNAC is a multi-particle beamline simulation code suitable for modelling of the motion of protons, heavy ions, or electrons, moving through linear accelerators and beam transport lines. In this paper, we document extensions written in Python. It will be shown how these Python extensions add a considerable amount of flexibility to DYNAC, while maintaining the calculation speeds available from the core Fortran source. Real-world use-cases are discussed. In addition, some improvements that have been made to the DYNAC source are reported.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPAB038
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THPVA065	Working Concept of 12.5 kW Tuning Dump at ESS	4591
	Y. Lee, M. Eshraqi, S. Ghatnekar Nilsson, Y.I. Levinsen, R. Miyamoto, S. Molloy, M. Möller, A. Olsson, T.J. Shea, C.A. Thomas, M. Wilborgsson ESS, Lund, Sweden F. Sordo ESS Bilbao, Zamudio, Spain
	The linac system at the European Spallation Source (ESS) will deliver 2~GeV protons at 5~MW beam power. The accelerated protons from the linac will be transported to the rotating tungsten target by two bending magnets. A tuning beam dump will be provided at the end of the linac, downstream of the first bending magnet. This tuning dump shall be able to handle at least 12.5 kW of beam power. In this paper, we present the working concept of the tuning dump. The impact of the proton beam induced material damage on the operational loads and service lifetime of the tuning dump is analysed. A number of particle transport and finite-element simulations are performed for the tuning beam modes.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA065
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Value Engineering of an Accelerator Design During Construction

592

E. Bargalló, M. Eshraqi, M. Lindroos, S. Molloy, D.C. Plostinar, A. Sunesson
ESS, Lund, Sweden
F. Gerigk
CERN, Geneva, Switzerland

Value engineering is an important part of the process of designing and realising large-scale installations such as high power accelerators. This typically occurs during the later part of the design stage of the system, however such exercises may also be requested by funding bodies at later stages in order to manage project contingency. Naturally, the later this is done, the more challenging it becomes. In this paper we report on a recently concluded Value Engineering effort at the European Spallation Source. The challenges presented by the initiation of such an exercise during the construction phase are discussed. In addition, we present and discuss the various options that we examined, and indicate the philosophy and figures of merit used to narrow down these options. The final conclusion will be presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPIK040

Export •

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

THPAB038

DYNAC: Extensions, Updates, and Upgrades

3784

S. Molloy, E. Tanke
ESS, Lund, Sweden

DYNAC is a multi-particle beamline simulation code suitable for modelling of the motion of protons, heavy ions, or electrons, moving through linear accelerators and beam transport lines. In this paper, we document extensions written in Python. It will be shown how these Python extensions add a considerable amount of flexibility to DYNAC, while maintaining the calculation speeds available from the core Fortran source. Real-world use-cases are discussed. In addition, some improvements that have been made to the DYNAC source are reported.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPAB038

Export •

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

THPVA065

Working Concept of 12.5 kW Tuning Dump at ESS

4591

Y. Lee, M. Eshraqi, S. Ghatnekar Nilsson, Y.I. Levinsen, R. Miyamoto, S. Molloy, M. Möller, A. Olsson, T.J. Shea, C.A. Thomas, M. Wilborgsson
ESS, Lund, Sweden
F. Sordo
ESS Bilbao, Zamudio, Spain

The linac system at the European Spallation Source (ESS) will deliver 2~GeV protons at 5~MW beam power. The accelerated protons from the linac will be transported to the rotating tungsten target by two bending magnets. A tuning beam dump will be provided at the end of the linac, downstream of the first bending magnet. This tuning dump shall be able to handle at least 12.5 kW of beam power. In this paper, we present the working concept of the tuning dump. The impact of the proton beam induced material damage on the operational loads and service lifetime of the tuning dump is analysed. A number of particle transport and finite-element simulations are performed for the tuning beam modes.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA065

Export •

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