| Autor: |
Veli-Pekka Viitanen, Heikki Sipila, Panu Partanen, Seppo Arvo Anter Nenonen, Risto Mutikainen |
| Rok vydání: |
1992 |
| Předmět: |
|
| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.130686 |
| Popis: |
Several types of ultrathin entrance windows have been developed for applications in spaceborne X-ray instruments. Active area diameters up to 140 mm have been achieved. The latest windows developed have a transmission of > 20% at B K(alpha) and > 40% at N K(alpha) . A new gas block layer type utilizing aluminum nitride has been developed, as well as semitransparent support structures for the membranes. The effects of pressure-induced strain, radiation and atomic oxygen corrosion on the gas leak properties of the windows has been studied.© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
