MODIFICATION
66 -- Spectrometer Grating Rulings and Substrates
- Notice Date
- 11/12/2014
- Notice Type
- Modification/Amendment
- NAICS
- 339999
— All Other Miscellaneous Manufacturing
- Contracting Office
- Department of Energy, Brookhaven National Laboratory (DOE Contractor), Brookhaven, PO Box 5000, Bldg. No. 355, Upton, New York, 11973
- ZIP Code
- 11973
- Solicitation Number
- RC281544
- Archive Date
- 12/6/2014
- Point of Contact
- Roseann Callister, Phone: 631-447-2110
- E-Mail Address
-
roseann@bnl.gov
(roseann@bnl.gov)
- Small Business Set-Aside
- N/A
- Description
- Due to technical questions received, we are posting clarifications this requirement: Question 1: for the efficiency calculations of the requested blaze gratings we would like to know the diffraction angles. In which configuration will the gratings be used? Answer 1: 500 mm -1 beamline grating: This grating will be used in the beamline monochromator and will be run in what is essentially a constant c_ff mode with c_ff= 2.33. 1250 mm -1 spectrometer grating: This grating will be used in the spectrometer. To obtain good resolution, it is necessary to operate the spectrometer in such a mode as to cancel the defocus, coma, and spherical aberrations at all points in the energy range. Because of this, the grating angles versus energy do not follow one of the common relationships. The energy/angle relationship is listed in the following table. eV alpha (deg) 200 87.0925 250 87.301 300 87.46 350 87.5875 400 87.6925 450 87.7815 500 87.858 550 87.925 600 87.9845 650 88.0375 700 88.0855 750 88.129 800 88.1685 850 88.2055 900 88.239 950 88.2705 1000 88.3 1050 88.3275 1100 88.353 1150 88.3775 1200 88.4005 1250 88.422 1300 88.4425 1350 88.462 1400 88.4805 1450 88.498 1500 88.515 1550 88.531 1600 88.5465 1650 88.5615 1700 88.5755 1750 88.5895 1800 88.6025 1850 88.615 1900 88.6275 1950 88.6395 2000 88.651 2050 88.662 2100 88.6725 2150 88.683 2200 88.693 2250 88.7025 2300 88.712 This is for clarification purposes only. All other terms and conditions remain the same. Bid due date remains 11/21/14.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DOE/BHL/BNL/RC281544/listing.html)
- Record
- SN03571451-W 20141114/141112234538-040c31fdbf69bb04481844e029fd2166 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
| FSG Index | This Issue's Index | Today's FBO Daily Index Page |