Accession Number : ADA338043

Title :   E-beam Testing and Evaluation of Superpolished High Quality Developmental Mirrors.

Descriptive Note : Annual rept. 21 Nov 89-21 Nov 90,

Corporate Author : SPIRE CORP BEDFORD MA

PDF Url : ADA338043

Report Date : 01 DEC 1990

Pagination or Media Count : 111

Abstract : The technical tasks for this program have been divided into two main phases. Phase I involves all equipment refits and system qualification tests necessary for the addition of advanced capabilities (i.e., interferometry and cryo-deposit deposition/monitoring). This phase has been scheduled during the first full year of the contract period. Phase II, during the remaining two years, has been scheduled entirely for performing various test procedures on two- and seven-inch diameter mirrors. At the writing of this report, almost all Phase I tasks have been completed, and Phase I should be completed close to schedule. There are nine milestones to be reached during this three-year period. The milestones are scheduled as shown in Figure 1. Milestones 1 through 4 are associated with the addition of new testing capabilities to the CRYOSCAT facility, namely interferometry and cryo-deposit deposition/monitoring. Completion of Milestone 4 will mark the end of Phase I. Phase II will entail regularly scheduled testing of two- and seven-inch diameter mirror coupons and samples. Section 2 of this report outlines the three-year schedule for this program. Section 3 provides a chronological report of progress during the first 12 months of the contract period. Section 4 gives the status of remaining tasks and milestones. An appendix includes a first draft of procedural checklists for facility operations.

Descriptors :   *MIRRORS, *TEST METHODS, *ELECTRON BEAMS, *FEASIBILITY STUDIES, ACCEPTANCE TESTS, FACILITIES, VACUUM CHAMBERS, INTERFEROMETRY, SCHEDULING, QUALIFICATIONS, SYSTEM SAFETY, CHECKOUT PROCEDURES, SCATTEROMETERS, ELECTROLYTIC POLISHING, HIGH SPEED CAMERAS.

Subject Categories : Optics
      Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE