NORMAL-INCIDENCE SOFT-X-RAY TELESCOPES

被引：15

作者：

SPILLER, E

MCCORKLE, RA

WILCZYNSKI, JS

GOLUB, L

NYSTROM, G

TAKACS, PZ

WELCH, C

机构：

[1] CTR ASTROPHYS,CAMBRIDGE,MA 02138

[2] BROOKHAVEN NATL LAB,UPTON,NY 11973

[3] LOCKHEED MISSILES & SPACE CO INC,LAS CRUCES,NM 88004

来源：

OPTICAL ENGINEERING | 1991年 / 30卷 / 08期

关键词：

X-RAY EUV OPTICS; MULTILAYER OPTICS; NORMAL INCIDENCE X-RAY TELESCOPES; X-RAY MIRRORS;

D O I：

10.1117/12.55915

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photos obtained during 5 min of observation time from the flight of our 25-cm-diam normal-incidence soft x-ray (lambda = 63.5 angstrom) telescope on September 11, 1989, are analyzed and the data are compared to the results expected from tests of the mirror surfaces. These tests cover a range of spatial periods from 25 cm to 1 angstrom. The photos demonstrate a resolution close to the photon shot noise limit and a reduction in the scattering of the multilayer mirror compared to a single surface for scattering angles above 1 arcmin, corresponding to surface irregularities with spatial periods below 10-mu-m. Our results are used to predict the possible performance of future telescopes: We conclude that sounding rocket observations might be able to reach a resolution around 0.1 arcsec. Higher resolutions will require flights of longer durations and improvements in mirror testing for the largest spatial periods.

引用

页码：1109 / 1115

页数：7

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