B.1g_482922 - Enclosure G. Task Order 1 SOW.pdf

This is a Statement of Work (SOW) from Brookhaven National Laboratory (managed by Brookhaven Science Associates for the U.S. Department of Energy) for the fabrication of Silicon and Zerodur mirror substrates.

The project objective is to fabricate 14 Silicon and Zerodur mirror substrates according to specified technical requirements. The scope includes four distinct mirror types: (1) three Silicon concave spherical mirrors with a 300 m radius of curvature, polished front surface, 60/40 surface quality, 0.3 nm rms roughness, and 20 µm parallelism; (2) two matched pair Silicon plane mirrors with 0.625° grazing angle, 60/40 surface quality, 0.3 nm rms roughness, and error less than 10' at beveled junction; (3) four high-specification Silicon plane mirrors with 0.15 nm rms roughness (goal), λ/10 flatness, 40/20 surface quality, and 140 mm x 55 mm clear aperture; and (4) two Zerodur flat mirrors per drawing ZZ21111101 with 0.5 nm rms roughness, 60/40 surface quality, and unpolished ground finish on one side. All items require beveled/chamfered edges, tolerance of ±0.2 mm, and delivery in customized boxes. The schedule is 6–8 weeks after receipt of order (ARO) for the primary deliverable of 11 Silicon and Zerodur mirror substrates.