ISSN:
1089-7623
Quelle:
AIP Digital Archive
Thema:
Physik
,
Elektrotechnik, Elektronik, Nachrichtentechnik
Notizen:
Under appropriate conditions, optimal contact cooling provides an attractive cooling strategy for the design of high-heat-load mirrors. This approach avoids a number of problems and uncertainties inherent in the fabrication, assembly, and operation of internally cooled high-heat-load optics. In this paper, the optimal contact-cooling concept is described, its advantages, disadvantages, and limitations are pointed out, and various design aspects and options are discussed. Simple heuristic guidelines for the design of such substrates are provided. The mirror assembly consists of the polished substrate and two cooling blocks in contact with it. The mirror and cooling block dimensions as well as the location of the cooling blocks on the mirror, are optimized to provide a thermo-mechanically balanced system so that there are negligible tangential slope errors in the mirror without any bending mechanism. As an example, the design of a high-heat-load first mirror for the Advanced Photon Source (APS) is described. This mirror, which is 1.2 m long, is exposed to a total power of 2 kW with a uniform heat flux of 0.38W/mm2. This mirror is currently being fabricated. The concept of a thermo-mechanically balanced system can also be applicable to other high-heat-load optical components, such as monochromators. © 1996 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.1147402
Permalink
