By: Richard Shook

 Computer-Aided Design  Sample Design  Design Process (SLAC)  ST-O And Filters  Background  Analysis  Results  Design

 Solid Edge  3D Digital Model  Finite Element Analysis (FEA)  Robust Editing  2D Drafting (Geometric Dimensioning and Tolerancing)  AutoCAD  2D Model  Beam line Layout

 Purpose  Visualization  Prototyping  Legal

Basic Shape

Protrusion Feature Able to make extended features on coincident planes

Cutout Feature Removing material from selected bodies

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

 Organization  Clarity  Cooperation

1. Project 1. Data Sheets 2. Base Drawings 3. Vendor Documents 2. Design 1. Modeling 2. Official Drawings 3. Processing/Releasing 1. Approvals 2. Checker 3. Document Control 4. Fabrication 1. Manufacturer 2. Machinist 5. Implementation (Final Assembly)

 Function  Parameters  Beam Energy 800 eV to 9000 eV  Absorption Length: 10 microns to 100 microns  Attenuation factor: 10 microns to 100 microns  Geometry

 What is attenuation length/coefficient?  What is a k-edge and how can that help?

 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

ElementK-Edge (keV) Absorption Coefficient (1/cm 2 ) 1/μ (microns) Hydrogen E+04 Helium E+04 Lithium Beryllium Boron Carbon Sodium Magnesium Used mat’lAcceptable mat’lRejected mat’l

Transmission Graph Beam Transmission vs. Photon energy at 20 microns for Beryllium

 Geometric Parameters:  Thicknesses (determined by analysis)  Filter Cross-Sectional Area  Vacuum  Other Experiments  Materials  Acquired Parts/Vendor Parts

 Dept. of Energy, Office of Science, SULI  SLAC  Rick Tankersley  Paul Stephens  Steve Score  Josef Frisch

  y/solidedge/index.shtml  Materials Handbook, 14th ed. Brady, Clauser, Vaccari. McGraw-Hill 1997      