국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	The Astro-H Soft X-Ray Mirror
저자	Robinson, David;; Okajima, Takashi;; Serlemitsos, Peter;; Soong, Yang
Keyword	ALIGNMENT;; ANGULAR RESOLUTION;; CHARGE COUPLED DEVICES;; DESIGN ANALYSIS;; IMAGE RESOLUTION;; JAPANESE SPACE PROGRAM;; MIRRORS;; X RAY OPTICS;; X RAY TELESCOPES
URL	http://hdl.handle.net/2060/20120009486
보고서번호	GSFC.JA.6061.2012
발행년도	2012
출처	NTRS (NASA Technical Report Server)
ABSTRACT	The Astro-H is led by the Japanese Space Agency (JAXA) in collaboration with many other institutions including the NASA Goddard Space Flight Center. Goddard''s contributions include two soft X-ray telescopes (SXTs). The telescopes have an effective area of 562 square cm at 1 keV and 425 square cm at 6 keV with an image quality requirement of 1.7 arc-minutes half power diameter (HPD). The engineering model has demonstrated 1.1 arc-minutes HPD error. The design of the SXT is based on the successful Suzaku mission mirrors with some enhancements to improve the image quality. Two major enhancements are bonding the X-ray mirror foils to alignment bars instead of allowing the mirrors to float, and fabricating alignment bars with grooves within 5 microns of accuracy. An engineering model SXT was recently built and subjected to several tests including vibration, thermal, and X-ray performance in a beamline. Several lessons were learned during this testing that will be incorporated in the flight design. Test results and optical performance are discussed, along with a description of the design of the SXT.