Transcript High Power Target R&D N. Simos, BNL 2nd Princeton-Oxford High Power Targetry Workshop Nov.

High Power Target R&D
N. Simos, BNL
2nd Princeton-Oxford High Power Targetry Workshop
Nov. 6-7, 2008
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Superbeam Target Concept
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Parameter Space
A happy medium between physics goals and engineering reality
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Overview of R&D Realized to-date on Solid Targets
• Target Shock Studies
• Radiation damage Studies
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Solid Targets
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Target Shock Studies
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Pulse Structure
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Beam-induced shock simulation
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Beam-induced shock simulation
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Beam-induced shock simulation
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Pulse Structure
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Solid Target Shock Studies
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Graphite and Carbon composites
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super-alloys
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Graphite-CC experience
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Graphite-CC experience
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Graphite-CC experience
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Graphite-CC experience
Accelerator (proton irradiated) experience
to support this ????
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Graphite-CC experience
Accelerator Experience:
TRIUMF Target; LANL Target; PSI Target
Water-cooled/Edge-cooled TRIUMF target
radiation-cooled
High operating temp ~1100 C
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super-Invar
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“Gum” metal
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Gum metal
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Other alloys
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Radiation Damage Studies – High-Z Materials
Tantalum
600
Ta_Sample-2
Ta_Sample-1
500
Load (N)
400
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Tantalum Stress-Strain Variability (0 dpa)
0
0
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Displacement (mm)
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Path forward
Protons on graphite/CC (> fluence threshold) under different
environment (vacuum or helium)
Study of Albemet to high fluences
Understanding damage via photon scattering (effort under way) ……
maybe explore the effect of shock and fatigue on target material microstructure
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