Carbon Fiber Damage in Accelerator Beam

Carbon fibers are commonly used as moving targets in Beam Wire Scanners. Because of their thermomechanical properties they are very resistant to particle beams. Their strength deteriorates with time due to radiation damage and low-cycle thermal fatigue. In case of high intensity beams this process c...

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Detalles Bibliográficos
Autores principales: Sapinski, M, Dehning, B, Guerrero, A, Koopman, J, Métral, E
Lenguaje:eng
Publicado: 2009
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1183415
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author Sapinski, M
Dehning, B
Guerrero, A
Koopman, J
Métral, E
author_facet Sapinski, M
Dehning, B
Guerrero, A
Koopman, J
Métral, E
author_sort Sapinski, M
collection CERN
description Carbon fibers are commonly used as moving targets in Beam Wire Scanners. Because of their thermomechanical properties they are very resistant to particle beams. Their strength deteriorates with time due to radiation damage and low-cycle thermal fatigue. In case of high intensity beams this process can accelerate and in extreme cases the fiber is damaged during a single scan. In this work a model describing the fiber temperature, thermionic emission and sublimation is discussed. Results are compared with fiber damage test performed on SPS beam in November 2008. In conclusions the limits of Wire Scanner operation on high intensity beams are drawn.
id cern-1183415
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-11834152019-09-30T06:29:59Zhttp://cds.cern.ch/record/1183415engSapinski, MDehning, BGuerrero, AKoopman, JMétral, ECarbon Fiber Damage in Accelerator BeamAccelerators and Storage RingsCarbon fibers are commonly used as moving targets in Beam Wire Scanners. Because of their thermomechanical properties they are very resistant to particle beams. Their strength deteriorates with time due to radiation damage and low-cycle thermal fatigue. In case of high intensity beams this process can accelerate and in extreme cases the fiber is damaged during a single scan. In this work a model describing the fiber temperature, thermionic emission and sublimation is discussed. Results are compared with fiber damage test performed on SPS beam in November 2008. In conclusions the limits of Wire Scanner operation on high intensity beams are drawn.CERN-BE-2009-028oai:cds.cern.ch:11834152009-05-01
spellingShingle Accelerators and Storage Rings
Sapinski, M
Dehning, B
Guerrero, A
Koopman, J
Métral, E
Carbon Fiber Damage in Accelerator Beam
title Carbon Fiber Damage in Accelerator Beam
title_full Carbon Fiber Damage in Accelerator Beam
title_fullStr Carbon Fiber Damage in Accelerator Beam
title_full_unstemmed Carbon Fiber Damage in Accelerator Beam
title_short Carbon Fiber Damage in Accelerator Beam
title_sort carbon fiber damage in accelerator beam
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1183415
work_keys_str_mv AT sapinskim carbonfiberdamageinacceleratorbeam
AT dehningb carbonfiberdamageinacceleratorbeam
AT guerreroa carbonfiberdamageinacceleratorbeam
AT koopmanj carbonfiberdamageinacceleratorbeam
AT metrale carbonfiberdamageinacceleratorbeam

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