Unified HEROS Code for Heat and Ion Implantation Profile Calculations under IFE Conditions

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Unified HEROS Code for Heat and Ion Implantation
Profile Calculations under IFE Conditions

• Qiyang Hu1, Jake Blanchard2, Shahram Sharafat1,
  Nasr Ghoniem1
• 1 UCLA 2 UWM

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Models and applications (current approach)
HAPL Chamber Analyses
Thermo-structural Models
Ion Effects Models
Exposure Experiments
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A unified approach comprehensive HEROS code

• Inputs
• Threats
• Ion spectra
• X-ray spectra
• Neutron spectra
• Laser intensity
• Properties

• Outputs
• Temperatures
• Stresses Strains
• Crack depth
• Ion concentration
• Ion cluster sizes

HEROS
MC
A. Takahashis Poster
Surface
M. Andersens Poster
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Unified HEROS Implementation Plan

• Short Term
• Ion Implantation
• Temperature
• Single Cycle Stress and Strain
• Medium Term
• Multiple Stress Cycles
• Ion Clustering (single cycle)
• Long Term
• Damage (dpa)
• Surface Cracking
• Sputtering

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Ion Implantation and Heat Generation
Ion Spectral Perkins data 350MJ Target
Calculating Stopping Power(by SRIM Excel)
Calculating Arrival TimeR 10.5 m
Unified HEROS
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Ion Profile
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Heat Rate (Q)
At the surface
Over the depth
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Heat by X-rays
Perkins data
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Transient Temperature Profile
Target 350MJ, 10.5m Ref Temperature
600?CAdiabatic Boundary at x 0
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Stress Analysis (Perfect Plastic)
For tungsten E 411GPa ?
0.28 ? 4.5?10-6 /K ?s 550 MPa
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Stress and Strain Calculations
Strain
Stress
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Summary

• HEROS unified for thermo-structural models
• Ion implantation
• Heat generation
• Mechanical response
• Future work
• More complex stress-strain behavior
• Multiple shots
• Comparisons to more experiments (RHEPP,
  Dragonfire etc.)