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Related papers: Depolarization in the ILC Linac-to-Ring Positron B…

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In order to achieve the physics goals of future Linear Colliders, it is important that electron and positron beams are polarized. The baseline design at the International Linear Collider (ILC) foresees an e+ source based on helical…

Accelerator Physics · Physics 2012-02-06 V. Kovalenko , O. S. Adeyemi , A. Hartin , G. Moortgat-Pick , L. Malysheva , S. Riemann , F. Staufenbiel , A. Ushakov

The design of the positron source for the International Linear Collider (ILC) is still under discussion. The baseline design plans to use the high-energy electron beam for the positron production before it goes to the IP. The electrons pass…

Accelerator Physics · Physics 2020-02-26 Sabine Riemann , Peter Sievers , Gudrid Moortgat-Pick , Andriy Ushakov

For the planned International Linear Collider it is intended to have both -- electron and positron -- beams polarised. This offers a great benefit for many physics studies, but also provides a challenge for the engineering of the machine. A…

High Energy Physics - Experiment · Physics 2008-11-26 Andreas Schälicke

The design of the positron source for the International Linear Collider (ILC) is still under consideration. The baseline design plans to use the electron beam for the positron production before it goes to the IP. The high-energy electrons…

Accelerator Physics · Physics 2019-02-22 Felix Dietrich , Gudrid Moortgat-Pick , Sabine Riemann , Peter Sievers , Andriy Ushakov

The full exploitation of the physics potential of an International Linear Collider (ILC) requires the development of a polarized positron beam. New concepts of polarized positron sources are based on the development of circularly polarized…

Instrumentation and Detectors · Physics 2009-11-11 Ralph Dollan , Karim Laihem , Andreas Schaelicke

Future electron-positron linear colliders require a highly polarized electron beam with a pulse structure that depends primarily on whether the acceleration utilizes warm or superconducting rf structures. The International Linear Collider…

Future linear colliders plan to collide polarised beams and the planned physics reach requires knowledge of the state of polarisation as precisely as possible. The polarised beams can undergo depolarisation due to various mechanisms. In…

Accelerator Physics · Physics 2017-08-23 I. Bailey , C. Bartels , M. Beckmann , A. Hartin , C. Helebrant , D. Kaefer , J. List , G. Moortgat-Pick

The ILC baseline design for the positron source is based on a helical undulator and will deliver a positron beam with a polarization of 30% or more. In this contribution the need for fast reversal of the positron helicity is discussed.

Instrumentation and Detectors · Physics 2009-03-16 Sabine Riemann , Andreas Schaelicke , Andriy Ushakov

To achieve the extremely high luminosity for colliding electron-positron beams at the future International Linear Collider (ILC) an undulator-based source with about 230 meters helical undulator and a thin titanium-alloy target rim rotated…

Accelerator Physics · Physics 2017-08-23 A. Ushakov , O. S. Adeyemi , G. Moortgat-Pick , F. Staufenbiel , S. Riemann

The International Linear Collider (ILC) will collide polarised electrons and positrons at beam energies of 45.6 GeV to 250 GeV and optionally up to 500 GeV. To fully exploit the physics potential of this machine, not only the luminosity and…

Instrumentation and Detectors · Physics 2008-10-13 C. Helebrant , D. Käfer , J. List

A possible solution to realize a conventional positron source driven by a several-GeV electron beam for the International Linear Collider is proposed. A 300 Hz electron linac is employed to create positrons with stretching pulse length in…

High energy e+e- linear colliders are the next large scale project in particle physics. They need intense sources to achieve the required luminosity. In particular, the positron source must provide about 10E+14 positrons per second. The…

Accelerator Physics · Physics 2014-12-11 S. Riemann , F. Staufenbiel , G. Moortgat-Pick , A. Ushakov

The International Linear Collider (ILC) is a future electron/positron collider at the energy frontier. Its physics goals are clearly focused on precision measurements at the electroweak scale and beyond. Beam energy and beam polarisation…

Instrumentation and Detectors · Physics 2015-06-22 Benedikt Vormwald

Polarised electron and positron beams are key ingredients to the physics programme of future linear colliders. Due to the chiral nature of weak interactions in the Standard Model - and possibly beyond - the knowledge of the…

Accelerator Physics · Physics 2015-06-19 Moritz Beckmann , Jenny List , Annika Vauth , Benedikt Vormwald

The full exploitation of the physics potential of a future Linear Collider requires the development of polarised positron beams. A very promising scheme for the technical realisation is the use of helical undulators, generating circular…

High Energy Physics - Phenomenology · Physics 2011-09-13 Gudrid Moortgat-Pick

Full exploitation of the physics potential of a future International Linear Collider will require the use of polarized electron and positron beams. Experiment E166 at the Stanford Linear Accelerator Center (SLAC) has demonstrated a scheme…

We review some recent arguments supporting the upgrade of the International Linear Collider by a polarized positron beam, in addition to the polarized electron beam. The examples presented here mainly focus on the impact of positron…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Osland , N. Paver

The ILC baseline design for the positron source is based on radiation from a helical undulator to produce positrons in a thin target. Since the photon beam created in the helical undulator is circularly polarized, the generated positron…

Accelerator Physics · Physics 2017-08-23 F. Staufenbiel , O. S. Adeyemi , V. Kovalenko , G. Moortgat-Pick , L. Malysheva , S. Riemann , A. Ushakov

The use of polarized beams enhance the possibility of the precision measurements at the International Linear Collider (ILC). In order to preserve the degree of polarization during beam transport spin rotators are included in the current TDR…

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