HB2012 - List of Keywords (heavy-ion)

Paper	Title	Other Keywords	Page
MOI1B01	High Intensity Issues at FAIR	ion, emittance, synchrotron, ion-source	11
	O.K. Kester GSI, Darmstadt, Germany O.K. Kester IAP, Frankfurt am Main, Germany
	Funding: Supported by the BMBF and Helmholtz International Center for FAIR The facility for antiproton and ion research - FAIR - will produce secondary beams of unprecedented intensities [1]. In order to produce such intense secondary beams and to provide intense beams for the CBM [2] and APPA [3] collaboration, primary heavy ion beams of highest intensities will be required. The main driver accelerator of FAIR will be the SIS100 synchrotron. The GSI heavy ion accelerator facility will be the injector of ion beams for SIS100. In order to reach the final intensities above 10¹¹ ions per cycle, the injector chain has to be modified accordingly and the SIS100 has to be tailored to the needs. Therefore an intensity upgrade program of the GSI accelerator facility has been started, which comprises improvements of ion sources, of the injector linacs and of the heavy ion synchrotron SIS18. In addition, high energy beam transport and the SIS100 need to have a dedicated design, in order to handle beam losses. The issues of the upgrade programme and of the SIS100 design will be addressed. [1] FAIR Green Paper- The Modularized Start Version, Oct.2009 [2] B.Friman et al.,The CBM physics Book, Series: Lecture Notes in Physics, Vol.814,2011 [3] http://www.fair-center.de/de/oeffentlichkeit/experimenteprogramm/appa-physics.html
	Slides MOI1B01 [15.662 MB]

WEO3C02	Collimation of Ion Beams	ion, collimation, proton, scattering	461
	I. Strašík, O. Boine-Frankenheim GSI, Darmstadt, Germany
	The SIS 100 synchrotron as part of the FAIR project at GSI will accelerate various beam species from proton to uranium. An important issue is to minimize uncontrolled beam losses using a collimation system. An application of the two-stage collimation concept, well established for proton accelerators, is considered for the fully-stripped ion beams. The two-stage system consists of a primary collimator (a scattering foil) and secondary collimators (bulky absorbers). The main tasks of this study are: to specify beam optics of the system, to calculate dependence of the scattering angle in the foil on the projectile species, to investigate importance of the inelastic nuclear interaction in the foil and to calculate dependence of the collimation efficiency on the projectile species. A concept for the collimation of partially-stripped ions is based on the stripping of remaining electrons and deflecting using a beam optical element towards a dump location. Residual activation and radiation damage issues of collimator materials are also being studied at GSI. Experimental results from irradiation of carbon-based materials by heavy ions are presented.
	Slides WEO3C02 [1.485 MB]

WEO3C06	Understanding Ion Induced Radiation Damage in Target Materials	target, ion, radiation, controls	476
	M. Tomut, C.L. Hubert GSI, Darmstadt, Germany M. Tomut INFIM, Bucharest, Romania
	Successful operation of next generations of radioactive beam facilities depends on the target survival in conditions of intense radiation field and thermo-mechanical solicitations induced by the driving ion beam. Material property degradation due to ion- beam induced damage will limit target lifetime, either by affecting target performance or, by reducing the material resilience. Similar problems are faced by beam protection elements at LHC. Understanding the mechanism of radiation damage induced by ion beam in these materials provides valuable knowledge for lifetime prediction and for the efforts to mitigate performance degradation. On their way through the target material, energetic heavy ions induce a trail of ionizations and excitations, resulting in formation of ion tracks consisting of complex defect structures. We give a review on the ion-induced damage creation in high power target materials, on the structural and thermo-mechanical property degradation and on their recovery in high temperature irradiation experiments.
	Slides WEO3C06 [4.439 MB]

Paper

Title

Other Keywords

Page

MOI1B01

High Intensity Issues at FAIR

ion, emittance, synchrotron, ion-source

11

O.K. Kester
GSI, Darmstadt, Germany
O.K. Kester
IAP, Frankfurt am Main, Germany

Funding: Supported by the BMBF and Helmholtz International Center for FAIR
The facility for antiproton and ion research - FAIR - will produce secondary beams of unprecedented intensities [1]. In order to produce such intense secondary beams and to provide intense beams for the CBM [2] and APPA [3] collaboration, primary heavy ion beams of highest intensities will be required. The main driver accelerator of FAIR will be the SIS100 synchrotron. The GSI heavy ion accelerator facility will be the injector of ion beams for SIS100. In order to reach the final intensities above 10¹¹ ions per cycle, the injector chain has to be modified accordingly and the SIS100 has to be tailored to the needs. Therefore an intensity upgrade program of the GSI accelerator facility has been started, which comprises improvements of ion sources, of the injector linacs and of the heavy ion synchrotron SIS18. In addition, high energy beam transport and the SIS100 need to have a dedicated design, in order to handle beam losses. The issues of the upgrade programme and of the SIS100 design will be addressed.
[1] FAIR Green Paper- The Modularized Start Version, Oct.2009
[2] B.Friman et al.,The CBM physics Book, Series: Lecture Notes in Physics, Vol.814,2011
[3] http://www.fair-center.de/de/oeffentlichkeit/experimenteprogramm/appa-physics.html

Slides MOI1B01 [15.662 MB]

WEO3C02

Collimation of Ion Beams

ion, collimation, proton, scattering

461

I. Strašík, O. Boine-Frankenheim
GSI, Darmstadt, Germany

The SIS 100 synchrotron as part of the FAIR project at GSI will accelerate various beam species from proton to uranium. An important issue is to minimize uncontrolled beam losses using a collimation system. An application of the two-stage collimation concept, well established for proton accelerators, is considered for the fully-stripped ion beams. The two-stage system consists of a primary collimator (a scattering foil) and secondary collimators (bulky absorbers). The main tasks of this study are:

to specify beam optics of the system,
to calculate dependence of the scattering angle in the foil on the projectile species,
to investigate importance of the inelastic nuclear interaction in the foil and
to calculate dependence of the collimation efficiency on the projectile species.

A concept for the collimation of partially-stripped ions is based on the stripping of remaining electrons and deflecting using a beam optical element towards a dump location. Residual activation and radiation damage issues of collimator materials are also being studied at GSI. Experimental results from irradiation of carbon-based materials by heavy ions are presented.

Slides WEO3C02 [1.485 MB]

WEO3C06

Understanding Ion Induced Radiation Damage in Target Materials

target, ion, radiation, controls

476

M. Tomut, C.L. Hubert
GSI, Darmstadt, Germany
M. Tomut
INFIM, Bucharest, Romania

Successful operation of next generations of radioactive beam facilities depends on the target survival in conditions of intense radiation field and thermo-mechanical solicitations induced by the driving ion beam. Material property degradation due to ion- beam induced damage will limit target lifetime, either by affecting target performance or, by reducing the material resilience. Similar problems are faced by beam protection elements at LHC. Understanding the mechanism of radiation damage induced by ion beam in these materials provides valuable knowledge for lifetime prediction and for the efforts to mitigate performance degradation. On their way through the target material, energetic heavy ions induce a trail of ionizations and excitations, resulting in formation of ion tracks consisting of complex defect structures. We give a review on the ion-induced damage creation in high power target materials, on the structural and thermo-mechanical property degradation and on their recovery in high temperature irradiation experiments.

Slides WEO3C06 [4.439 MB]