U.S. Department of EnergyOffice of Scientific and Technical Information
Inspection of the diamond-turned surfaces used for mounting an array of eight x-ray reflection gratings
Abstract
This paper describes the use of a T-base diamond-turning machine as a measuring machine for inspecting the positional accuracy of the diamond-tuned surfaces of four attachment rails--parts that resemble precision step gauges. The attachment rails provide the precision mounting surfaces for a prototype array of eight X-ray reflection gratings for the European Space Agency`s (ESA) X-ray Multi-Mirror project (XMM). Each rail is 4.5 in. long with a cross-section of less than 0.1 in{sup 2}, and has eight protruding bosses spaced approximately 0.5 in. apart (Figure 1). A diamond-turned feature on each boss provides a mounting surface for one of the four corners of a grating. These surfaces are 0.018 in. high by 0.1 in. wide, and have a 12 in. cylindrical radius with an axis parallel to the boss protrusion (Figure 2). Together, the four rails provide eight sets of four coplanar points for mounting the gratings (Figure 3). Note that the gratings are not parallel to each other; they sweep through a 12 mrad angle from the first to eighth grating. To accommodate this fanned array, the normal directions (denoted by arrows in Figure 1) of the mounting surfaces on the bosses, at the rail centerline, also sweep throughmore »
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 10191324
- Report Number(s):
- UCRL-JC-115215; CONF-9311102-1
ON: DE93040845
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Conference
- Resource Relation:
- Conference: American Society for Precision Engineering (ASPE) conference,Seattle, WA (United States),7-12 Nov 1993; Other Information: PBD: Nov 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; MIRRORS; INSPECTION; ROUGHNESS; MEASURING INSTRUMENTS; PERFORMANCE; MILLING; DIAMONDS; MEASURING METHODS; DIMENSIONS; SURFACE PROPERTIES; ACCURACY; DIFFRACTION GRATINGS; X-RAY EQUIPMENT; 440800; MISCELLANEOUS INSTRUMENTATION
Citation Formats
Montesanti, R C. Inspection of the diamond-turned surfaces used for mounting an array of eight x-ray reflection gratings. United States: N. p., 1993.
Web.
Montesanti, R C. Inspection of the diamond-turned surfaces used for mounting an array of eight x-ray reflection gratings. United States.
Montesanti, R C. 1993.
"Inspection of the diamond-turned surfaces used for mounting an array of eight x-ray reflection gratings". United States. https://www.osti.gov/servlets/purl/10191324.
@article{osti_10191324,
title = {Inspection of the diamond-turned surfaces used for mounting an array of eight x-ray reflection gratings},
author = {Montesanti, R C},
abstractNote = {This paper describes the use of a T-base diamond-turning machine as a measuring machine for inspecting the positional accuracy of the diamond-tuned surfaces of four attachment rails--parts that resemble precision step gauges. The attachment rails provide the precision mounting surfaces for a prototype array of eight X-ray reflection gratings for the European Space Agency`s (ESA) X-ray Multi-Mirror project (XMM). Each rail is 4.5 in. long with a cross-section of less than 0.1 in{sup 2}, and has eight protruding bosses spaced approximately 0.5 in. apart (Figure 1). A diamond-turned feature on each boss provides a mounting surface for one of the four corners of a grating. These surfaces are 0.018 in. high by 0.1 in. wide, and have a 12 in. cylindrical radius with an axis parallel to the boss protrusion (Figure 2). Together, the four rails provide eight sets of four coplanar points for mounting the gratings (Figure 3). Note that the gratings are not parallel to each other; they sweep through a 12 mrad angle from the first to eighth grating. To accommodate this fanned array, the normal directions (denoted by arrows in Figure 1) of the mounting surfaces on the bosses, at the rail centerline, also sweep through a 12 mrad angle from the first to eighth boss.},
doi = {},
url = {https://www.osti.gov/biblio/10191324},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 01 00:00:00 EST 1993},
month = {Mon Nov 01 00:00:00 EST 1993}
}