Sample Problem: NIF Unconverted Light in 3ω Focus Plane

Setting Up the Grid

Perform the following steps to set up a rectangle at target chamber center, pointed at the Q15T NIF Quad:

• Select Target | Add Object.
• Select "Rectangle" for the target component type.
• Set the object name to "Rectangle".
• In the Position tab of the Object Parameters Dialog:
• For the Reference Coordinate System, use "Target Chamber".
• Use the default object position: r = (0,0,0). That is, put the centroid of the rectangle at target chamber center.
• Find the port locations for the Q15T beams:
  • View the laser port positions by selecting View | Port Positions.
  • The ports for the Q15T quad is centered at: polar = 23.5 degrees; azimuthal = 78.75 degrees.
• Enter the angles for the polar and azimuthal orientation angles (23.5 and 78.75 degrees, respectively).
• In the Size/Gridding tab of the Object Parameters Dialog:
  • Set the X length to 3 cm.
  • Set the Y length to 6 cm.
  • Use 60 grid points in the X-direction..
  • Use 80 grid points in the Y-direction.
• Select "OK". (The rectangle is added to the graph frame.)