PAC07 - List of Authors (Bailey, I. R.)

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Bailey, I. R.

Paper	Title	Page
THPMN070	Development of a Full Scale Superconducting Undulator Module for the ILC Positron Source	2862
	Y. Ivanyushenkov, E. Baynham, T. W. Bradshaw, A. J. Brummitt, F. S. Carr, A. J. Lintern, J. Rochford STFC/RAL, Chilton, Didcot, Oxon I. R. Bailey, J. A. Clarke, J. B. Dainton, O. B. Malyshev, L. I. Malysheva, G. A. Moortgat-Pick, D. J. Scott Cockcroft Institute, Warrington, Cheshire D. P. Barber DESY, Hamburg P. Cooke Liverpool University, Science Faculty, Liverpool B. J.A. Shepherd STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
	Funding: This work is supported in part by the Commission of the European Communities under the 6th Framework Programme "Structuring the European Research Area", contract number RIDS-011899. An undulator based positron source is a baseline for the International Linear Collider (ILC). The HeliCal collaboration in the UK is working on the development of a full scale 4-m long undulator module. Several prototypes have been built and tested in the R&D phase of the programme that culminated in the development of manufacturing techniques suitable for construction of the first full scale undulator sections. This paper details the design and the construction status of 4-m long undulator module.
THPMN071	Status of R&D on a Superconducting Helical Undulator for the ILC Positron Source	2865
	Y. Ivanyushenkov, E. Baynham, T. W. Bradshaw, A. J. Brummitt, F. S. Carr, A. J. Lintern, J. Rochford STFC/RAL, Chilton, Didcot, Oxon I. R. Bailey, J. A. Clarke, J. B. Dainton, O. B. Malyshev, L. I. Malysheva, G. A. Moortgat-Pick, D. J. Scott Cockcroft Institute, Warrington, Cheshire D. P. Barber DESY, Hamburg P. Cooke Liverpool University, Science Faculty, Liverpool B. J.A. Shepherd STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
	Funding: This work is supported in part by the Commission of the European Communities under the 6th Framework Programme "Structuring the European Research Area", contract number RIDS-011899. An undulator based positron source is a baseline for the International Linear Collider (ILC). The HeliCal collaboration in the UK is carrying out an R&D programme on a short period supercoducting helical undulator with the goal to develop manufacturing technique as well as modelling and measurement techniques. Several undulator prototypes have been built and successfully tested. This paper summarizes the results of the R&D phase of the project.
THPMN074	The Status of the HeLiCal Contribution to the Polarised Positron Source for the International Linear Collider	2874
	D. J. Scott, A. Birch, J. A. Clarke, O. B. Malyshev STFC/DL/ASTeC, Daresbury, Warrington, Cheshire I. R. Bailey, D. P. Barber, J. B. Dainton, L. J. Jenner Cockcroft Institute, Warrington, Cheshire E. Baynham, T. W. Bradshaw, A. J. Brummitt, F. S. Carr, Y. Ivanyushenkov, A. J. Lintern, J. Rochford STFC/RAL, Chilton, Didcot, Oxon L. I. Malysheva Liverpool University, Science Faculty, Liverpool G. A. Moortgat-Pick Durham University, Durham
	The positron source for the International Linear Collider is a helical undulator-based design, which can generate unprecedented quantities of polarised positrons. The HeLiCal collaboration takes responsibility for the design and prototyping of the superconducting helical undulator, which is a highly demanding short period device with very small aperture, and also leads the start to end simulations of the polarised electrons and positrons to ensure that the high polarisation levels generated survive from the source up to the collision point. This paper will provide an update on the work of the collaboration, focusing on these two topic areas, and will also discuss future plans.
THPMN083	Spin Tracking at the International Linear Collider	2901
	I. R. Bailey, I. R. Bailey, J. A. Clarke, J. B. Dainton, L. J. Jenner, O. B. Malyshev, L. I. Malysheva, G. A. Moortgat-Pick, D. J. Scott Cockcroft Institute, Warrington, Cheshire D. P. Barber DESY, Hamburg E. Baynham, T. W. Bradshaw, F. S. Carr, Y. Ivanyushenkov, J. Rochford STFC/RAL/ASTeC, Chilton, Didcot, Oxon A. Birch STFC/DL/ASTeC, Daresbury, Warrington, Cheshire A. J. Brummitt, A. J. Lintern STFC/RAL, Chilton, Didcot, Oxon P. Cooke, L. Zang Liverpool University, Science Faculty, Liverpool A. F. Hartin OXFORDphysics, Oxford, Oxon
	Funding: This work is supported in part by the Commission of the European Communities under the 6th Framework Programme "Structuring the European Research Area", contract number RIDS-011899. Polarized electron and positron beams are foreseen for the future International Linear Collider (ILC), with polarized electrons already included in the baseline design and polarized positrons seen as a highly-desirable upgrade. High precision physics requires the polarization of both beams to be known with a relative uncertainty of approximately 0.5% or better. Therefore all possible depolarization effects that could operate between the polarized sources and the interaction regions have to be carefully modelled. The "heLiCal" collaboration aims to provide a full "cradle-to-grave" analysis of all depolarization effects at the ILC, and to develop software tools to carry out appropriate computer simulations. In this paper we report on the first phase of our work which includes extensive simulations of the ILC spin-dynamics and a detailed study of beam-beam depolarization effects at the interaction point(s).
THPMN083	Spin Tracking at the International Linear Collider	2901
	I. R. Bailey, I. R. Bailey, J. A. Clarke, J. B. Dainton, L. J. Jenner, O. B. Malyshev, L. I. Malysheva, G. A. Moortgat-Pick, D. J. Scott Cockcroft Institute, Warrington, Cheshire D. P. Barber DESY, Hamburg E. Baynham, T. W. Bradshaw, F. S. Carr, Y. Ivanyushenkov, J. Rochford STFC/RAL/ASTeC, Chilton, Didcot, Oxon A. Birch STFC/DL/ASTeC, Daresbury, Warrington, Cheshire A. J. Brummitt, A. J. Lintern STFC/RAL, Chilton, Didcot, Oxon P. Cooke, L. Zang Liverpool University, Science Faculty, Liverpool A. F. Hartin OXFORDphysics, Oxford, Oxon
	Funding: This work is supported in part by the Commission of the European Communities under the 6th Framework Programme "Structuring the European Research Area", contract number RIDS-011899. Polarized electron and positron beams are foreseen for the future International Linear Collider (ILC), with polarized electrons already included in the baseline design and polarized positrons seen as a highly-desirable upgrade. High precision physics requires the polarization of both beams to be known with a relative uncertainty of approximately 0.5% or better. Therefore all possible depolarization effects that could operate between the polarized sources and the interaction regions have to be carefully modelled. The "heLiCal" collaboration aims to provide a full "cradle-to-grave" analysis of all depolarization effects at the ILC, and to develop software tools to carry out appropriate computer simulations. In this paper we report on the first phase of our work which includes extensive simulations of the ILC spin-dynamics and a detailed study of beam-beam depolarization effects at the interaction point(s).