• Requirements
• Design Criteria
• Codes and Standards including EH&S
• Shielding material
• Structural material
• Adaptability for possible remodeled shield configuration or for R&R of equipment
• Fabrication-Vendor surface shops and/or 4850 level fabrication
• Material transport-Dependant on final Yates lift configuration
• Assembly integration
• Maintenance
• Liquid Processing

	
* Type
* Containment
  - Module size
  - Shine prevention
* Liquid circulation and processing
  - Air removal 
  - Breech containment

	
* Type and implementation method
  - Availability
  - Solid panels 
* Cast 
      * Built up from thinner Plate or castings
  - Sprayed in place 
* May be less dense than cast material
* Could be a Toxicity problem in the Module/drift –EH&S issue

• Minimum steel mass
• Walls
  1. Vertical and Lateral stability
• Roof
  1. Modular
  2. Flexibility for introduction and heavy maintenance of equipment inside the shield
• Floor
  1. Support of screeners and Immersion tank