| Paper | Title | Page |
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| MOPWA059 | Beam Emittance Measurements and Beam Transport Optimization at the Clatterbridge Cancer Centre | 810 |
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Funding: Cockcroft Institute, Daresbury, Warrington, WA4 4AD, United Kingdom University of Liverpool, Liverpool, United Kingdom The QUASAR Group is preparing tests of the high energy physics LHCb VELO detector as a non–invasive online dose monitor at the 60 MeV proton therapy beam at the Clatterbridge Cancer Centre (CCC), UK. The proposed method relies on the cross-correlation between the beam halo signal as measured by VELO and the dose delivered to the patient, linked via the absolute intensity of the beam. In order to estimate the expected halo signal and the total beam intensity, studies into proton beam transport through the whole CCC beam line have been carried out. This required the measurement of beam emittance at several positions of the beam delivery system. Quadrupole scans have been realized using a CsI (Tl) scintillating screen in combination with an 8 bit, 13 Mpixel CCD camera. In this contribution, results from measurements are presented and include a discussion of the effects from dispersion in the beam. Experimental data are compared against earlier measurements performed in 1998 and are used as a basis for suggestions targeting an overall optimization of beam transport at CCC. * Assessing the Suitability of a Medical Cyclotron as an Injector for an Energy Upgrade, J. A. Clarke et all , CLRC Daresbury Laboratory, Warrington, UK |
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| MOPWA060 | DITANET - An International Network in Beam Diagnostics | 813 |
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Funding: Work supported by the EU under contract 215080. Beam diagnostics systems are essential constituents of any particle accelerator; they reveal the properties of a beam and how it behaves in a machine. Without an appropriate set of diagnostic elements, it would simply be impossible to operate any accelerator complex, let alone optimize its performance. Beam diagnostics is also a rich field in which a great variety of physical effects are made use of and consequently provides a wide interdisciplinary base for the training of researchers. The DITANET Consortium develops beyond state-of-the-art beam diagnostic techniques for hadron and electron accelerators and trained more than 20 researchers between 2008 and 2012. This contribution summarizes the network's research outcomes in beam instrumentation and diagnostics. |
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| TUPEA065 | Design of a Photonic Crystal Accelerator for Basic Radiation Biology | 1283 |
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Funding: This work is supported by the EU under Grant Agreement 289485, the STFC Cockcroft Institute Core Grant No. ST/G008248/1 and KAKENHI, Grant-in-Aid for Scientific Research (C) 24510120. The application of photonic crystals to realize an on-chip electron beam source for fundamental radiation biology is highly interesting for a number of applications. The unique combination of nanometer beam size and attosecond-short pulses has a very promising potential for use in microscopic and ultra-fast analyses of damage and repair of radiation-irradiated DNA and chromosomes. Simulations studies indicate an output electron beam energy, beam intensity and device size of the order of MeVs, fCs and a few cm, respectively. In this contribution, first results from numerical studies into the design of such compact accelerator structure are presented. The dimensions of a novel dual grating-based acceleration structure are shown together with the estimated laser parameters. Finally, a system consisting of an electron injector and multi-stage accelerating structures is proposed, which corresponds to a miniaturized optical linear accelerator. |
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| THPWA044 | R&D into Laser Applications for Accelerators | 3729 |
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Funding: Work supported by the EU under Grant Agreement 289191. Lasers can be used for the generation of high brightness electron and exotic ion beams, the acceleration of particles with the highest accelerating gradients, as well as for the characterization of many complex particle beams by means of laser-based beam diagnostics methods. In addition, (free electron) lasers can be used for achieving the highest time resolution and strongest fields for experiments in atomic physics, chemistry and biology, i.e. for studies into the dynamics of some of the most fundamental processes in nature. Without constant progress in laser technology and close collaboration between laser experts and accelerator scientists, many of today's most advanced experiments would simply be impossible. The LA3NET consortium combines developments into laser technology and sensors with their application at advanced accelerator facilities, providing complex beams ranging from highest brightness electron beams to high intensity proton beams. This contribution presents the consortium's broad, yet closely interconnected experimental program. |
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| THPWA045 | Accelerator R&D in the QUASAR Group | 3732 |
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Funding: Work supported by the STFC Cockcroft Institute Core Grant No. ST/G008248/1, HGF and GSI under contract VH-NG-328 and the EU under contracts 215080, 289181 and 289485. The QUASAR Group is a pan-European research group based at the Cockcroft Institute in the UK. It carries out R&D into methods to decelerate and store very low energy antiproton and exotic ion beams, beam diagnostics developments for medical accelerators, including imaging and dosimetry, as well as opto-electronics and laser applications. This contribution presents the latest results of the Group's studies into the USR/ELENA/AEgIS antimatter facilities, novel least destructive beam profile monitors for medical and industry applications, as well as laser applications for accelerators, includingμaccelerators and a laser velocimeter. |
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| THPWA046 | Accelerator Optimization within the oPAC Project | 3735 |
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Funding: Work supported by the EU under Grant Agreement 289485. Many of the today’s most advanced research infrastructures rely on the use of particle accelerators. This includes for example synchrotron light sources and FELs, high intensity hadron accelerators for the generation of exotic beams and spallation sources, as well as much smaller accelerator facilities for precision experiments and fundamental studies. Moreover, accelerators are very important for many commercial applications, such as for example medical applications, material studies and treatment, lithography, or security applications, such as scanners at airports or cargo stations. The full potential of any accelerator can only be exploited if the performance of all its parts are continuously optimized, if numerical tools are made available that allow for developing and improving advanced machine designs, if methods are developed in partnership between the academic and industry sectors to monitor beams with ever higher intensities and brightness, shorter pulse lengths or smaller dimensions. This contribution presents the R&D program of the oPAC project that optimizes existing and future accelerators. |
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| MOPWA060 | DITANET - An International Network in Beam Diagnostics | 813 |
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Funding: Work supported by the EU under contract 215080. Beam diagnostics systems are essential constituents of any particle accelerator; they reveal the properties of a beam and how it behaves in a machine. Without an appropriate set of diagnostic elements, it would simply be impossible to operate any accelerator complex, let alone optimize its performance. Beam diagnostics is also a rich field in which a great variety of physical effects are made use of and consequently provides a wide interdisciplinary base for the training of researchers. The DITANET Consortium develops beyond state-of-the-art beam diagnostic techniques for hadron and electron accelerators and trained more than 20 researchers between 2008 and 2012. This contribution summarizes the network's research outcomes in beam instrumentation and diagnostics. |
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| TUPEA065 | Design of a Photonic Crystal Accelerator for Basic Radiation Biology | 1283 |
|
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Funding: This work is supported by the EU under Grant Agreement 289485, the STFC Cockcroft Institute Core Grant No. ST/G008248/1 and KAKENHI, Grant-in-Aid for Scientific Research (C) 24510120. The application of photonic crystals to realize an on-chip electron beam source for fundamental radiation biology is highly interesting for a number of applications. The unique combination of nanometer beam size and attosecond-short pulses has a very promising potential for use in microscopic and ultra-fast analyses of damage and repair of radiation-irradiated DNA and chromosomes. Simulations studies indicate an output electron beam energy, beam intensity and device size of the order of MeVs, fCs and a few cm, respectively. In this contribution, first results from numerical studies into the design of such compact accelerator structure are presented. The dimensions of a novel dual grating-based acceleration structure are shown together with the estimated laser parameters. Finally, a system consisting of an electron injector and multi-stage accelerating structures is proposed, which corresponds to a miniaturized optical linear accelerator. |
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| THPWA044 | R&D into Laser Applications for Accelerators | 3729 |
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Funding: Work supported by the EU under Grant Agreement 289191. Lasers can be used for the generation of high brightness electron and exotic ion beams, the acceleration of particles with the highest accelerating gradients, as well as for the characterization of many complex particle beams by means of laser-based beam diagnostics methods. In addition, (free electron) lasers can be used for achieving the highest time resolution and strongest fields for experiments in atomic physics, chemistry and biology, i.e. for studies into the dynamics of some of the most fundamental processes in nature. Without constant progress in laser technology and close collaboration between laser experts and accelerator scientists, many of today's most advanced experiments would simply be impossible. The LA3NET consortium combines developments into laser technology and sensors with their application at advanced accelerator facilities, providing complex beams ranging from highest brightness electron beams to high intensity proton beams. This contribution presents the consortium's broad, yet closely interconnected experimental program. |
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| THPWA045 | Accelerator R&D in the QUASAR Group | 3732 |
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Funding: Work supported by the STFC Cockcroft Institute Core Grant No. ST/G008248/1, HGF and GSI under contract VH-NG-328 and the EU under contracts 215080, 289181 and 289485. The QUASAR Group is a pan-European research group based at the Cockcroft Institute in the UK. It carries out R&D into methods to decelerate and store very low energy antiproton and exotic ion beams, beam diagnostics developments for medical accelerators, including imaging and dosimetry, as well as opto-electronics and laser applications. This contribution presents the latest results of the Group's studies into the USR/ELENA/AEgIS antimatter facilities, novel least destructive beam profile monitors for medical and industry applications, as well as laser applications for accelerators, includingμaccelerators and a laser velocimeter. |
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| THPWA046 | Accelerator Optimization within the oPAC Project | 3735 |
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Funding: Work supported by the EU under Grant Agreement 289485. Many of the today’s most advanced research infrastructures rely on the use of particle accelerators. This includes for example synchrotron light sources and FELs, high intensity hadron accelerators for the generation of exotic beams and spallation sources, as well as much smaller accelerator facilities for precision experiments and fundamental studies. Moreover, accelerators are very important for many commercial applications, such as for example medical applications, material studies and treatment, lithography, or security applications, such as scanners at airports or cargo stations. The full potential of any accelerator can only be exploited if the performance of all its parts are continuously optimized, if numerical tools are made available that allow for developing and improving advanced machine designs, if methods are developed in partnership between the academic and industry sectors to monitor beams with ever higher intensities and brightness, shorter pulse lengths or smaller dimensions. This contribution presents the R&D program of the oPAC project that optimizes existing and future accelerators. |
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