title: Production and performance of the inFOCmicroS 20-40-keV graded multilayer mirror.
abstract: The International Focusing Optics Collaboration for microCrab Sensitivity (InFOCmicroS) balloonborne hard x-ray telescope incorporates graded Pt/C multilayers replicated onto segmented Al foils to obtain the significant effective area at energies previously inaccessible to x-ray optics. Reflectivity measurements of individual foils demonstrate our capability to produce a mass quantity of multilayered foils with a rms roughness of 0.5 nm. The effective area of the completed mirror is 78 and 22 cm2 at 20 and 40 keV, respectively. The measured half-power diameter is 2.0 +/- 0.6 are min (90% confidence). The successful completion of this mirror demonstrates its applicability to future x-ray telescopes such as Constellation-X.
authors.affiliation: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA. berendse@astro.umd.edu
authors.forename: Fred
authors.initials: F
authors.lastname: Berendse
authors.forename: Scott M
authors.initials: SM
authors.lastname: Owens
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Serlemitsos
authors.forename: Jack
authors.initials: J
authors.lastname: Tueller
authors.forename: Kai-Wing
authors.initials: KW
authors.lastname: Chan
authors.forename: Yang
authors.initials: Y
authors.lastname: Soong
authors.forename: Hans
authors.initials: H
authors.lastname: Krimm
authors.forename: Wayne H
authors.initials: WH
authors.lastname: Baumgartner
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Ogasaka
authors.forename: Keisuke
authors.initials: K
authors.lastname: Tamura
authors.forename: Takashi
authors.initials: T
authors.lastname: Okajima
authors.forename: Yuzuru
authors.initials: Y
authors.lastname: Tawara
authors.forename: Koujun
authors.initials: K
authors.lastname: Yamashita
authors.forename: Kazutami
authors.initials: K
authors.lastname: Misaki
authors.forename: Hideyo
authors.initials: H
authors.lastname: Kunieda