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By: Richard Shook. Mechanical Design. Overview. Computer-Aided Design Sample Design Design Process (SLAC) ST-O And Filters Background Analysis Results Design. Computer-Aided Design. Solid Edge 3D Digital Model Finite Element Analysis (FEA) Robust Editing

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Presentation Transcript
overview
Overview
  • Computer-Aided Design
  • Sample Design
  • Design Process (SLAC)
  • ST-O And Filters
    • Background
    • Analysis
    • Results
    • Design
computer aided design
Computer-Aided Design
  • Solid Edge
    • 3D Digital Model
    • Finite Element Analysis (FEA)
    • Robust Editing
    • 2D Drafting (Geometric Dimensioning and Tolerancing)
  • AutoCAD
    • 2D Model
    • Beam line Layout
modeling
Modeling
  • Purpose
    • Visualization
    • Prototyping
    • Legal
protrusion feature
Protrusion Feature

Able to make extended features on coincident planes

cutout feature
Cutout Feature

Removing material from selected bodies

round feature
Round Feature

Giving a selected edge, face or curve a radial feature.

why did you just show me this
Why Did You Just Show Me This?
  • Organization
  • Clarity
  • Cooperation
mechanical design process
Mechanical Design Process
  • Project
    • Data Sheets
    • Base Drawings
    • Vendor Documents
  • Design
    • Modeling
    • Official Drawings
  • Processing/Releasing
    • Approvals
    • Checker
    • Document Control
  • Fabrication
    • Manufacturer
    • Machinist
  • Implementation

(Final Assembly)

filters
Filters
  • Function
  • Parameters
    • Beam Energy 800 eV to 9000 eV
    • Absorption Length: 10 microns to 100 microns
    • Attenuation factor: 10 microns to 100 microns
    • Geometry
background and definitions
Background and Definitions
  • What is attenuation length/coefficient?
  • What is a k-edge and how can that help?
analysis
Analysis
  • Intensity:

where I is the intensity of the photon beam, α is the linear attenuation coefficient, x is the path length

  • Transmission:

Beer-Lambert Law

analysis cont d
Analysis Cont’d

Acceptable mat’l

Rejected mat’l

Used mat’l

transmission graph
Transmission Graph

Beam Transmission vs. Photon energy at 20 microns for Beryllium

mechanical design
Mechanical Design
  • Geometric Parameters:
    • Thicknesses (determined by analysis)
    • Filter Cross-Sectional Area
    • Vacuum
    • Other Experiments
  • Materials
  • Acquired Parts/Vendor Parts
acknowledgements
Acknowledgements
  • Dept. of Energy, Office of Science, SULI
  • SLAC
  • Rick Tankersley
  • Paul Stephens
  • Steve Score
  • Josef Frisch
resources
Resources
  • http://mdweb.slac.stanford.edu/index.php
  • http://www.plm.automation.siemens.com/en_us/products/velocity/solidedge/index.shtml
  • Materials Handbook, 14th ed. Brady, Clauser, Vaccari. McGraw-Hill 1997
  • http://henke.lbl.gov/optical_constants/
  • http://www.ct.infn.it/~rivel/Glossario/node30.html#29
  • http://www.chemguide.co.uk/analysis/uvvisible/beerlambert.html
  • http://www.files.chem.vt.edu/chem-ed/spec/beerslaw.html
  • http://physics.nist.gov/PhysRefData/XrayMassCoef/cover.html
  • http://www.csrri.iit.edu/periodic-table.html