66 -- ETALON COATINGS FOR THE SUMI/SUMIT PROJECT

Notice Date

May 23, 2001

Contracting Office

NASA/George C. Marshall Space Flight Center, Procurement Office, Marshall Space Flight Center, AL 35812

ZIP Code

35812

E-Mail Address

Barry S. Kaigler (barry.kaigler@msfc.nasa.gov)

Description

NASA/MSFC plans to issue a Request For Quotation (RFQ) for Etalon coatings for the SUMI/SUMIT project. SPECIFICATIONS: 1. MUST PROVIDE COATING ON THE ETALONS WITH THE FOLLOWING CHARATERISTICS: 1.a DIELECTRIC REFLECTIVE COATING REQUIREMENTS: CENTRAL WAVELENGTH: 154.82nm (SOLAR CIV CORONAL MISSION LINE) REFLECTIVITY: 77% PLUS OR MINUS 3% FROM 153nm TO 157nm FOR ANGLES OF INCIDENCE < 15 DEGREES. ABSORPTION: LESS THEAN 1% FROM 153 TO 157nm. COATING MUST ALLOW CONTACT CLEANING. COATING MUST BE DURABLE. EXTREMELY LOW-STRESS COATING, USING LOW ENERGY ION DEPOSITION METHODS AND UNHEATED SUBSTANCES, TO MINIMIZE SUBSTRATE DEFORMATION BY RESIDUAL FILM STRESS. COMPATIBLE WITH VUV FP ETALON USAGE. 1.b SEMITRANSPARENT, STRESS-FREE OR ALUMINUM OVERCOATINGS (ON THE FIRST PAIR OF ETALONS ONLY)WITH THE FOLLOWING CHARATERISTICS: CENTRAL WAVELENGTH:633nm REFLECTIVITY: 70% TO 75%, ACHIEVED BY THICKNESS CONTROL OF A METALLIC COATING WITH INTRINSIC REFLECTIVITY >90%. REMOVABLE METALLIC COATING WITHOUT DAMAGING THE DIELECTRIC REFLECTIVE COATING. 2.VERIFICATION: FILTER PERFORMANCE WILL BE VERIFIED AT MSFC BY MEASURING WITNESS SAMPLES COATED SIMULTANEOUSLY WITH THE ETALONS AND THE ETALONS THEMESELVES AT VUV WAVELENGTHS. TEN WITNESS SAMPLES COATED SIMULTANEOUSLY WITH MIRRORS MUST BE PROVIDED AT THE TIME OF ETALONS DELIVERY.

Web Link

Click here for the latest information about this notice (http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=62#8-1-1-S5-D3670)

Record

Loren Data Corp. 20010525/SPMSC004.HTM (D-143 SN50M909)