Production and performance of the inFOCmicroS 20-40-keV graded multilayer mirror.
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.
Berendse
Fred
F
NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA. berendse@astro.umd.edu
Owens
Scott M
SM
Serlemitsos
Peter J
PJ
Tueller
Jack
J
Chan
Kai-Wing
KW
Soong
Yang
Y
Krimm
Hans
H
Baumgartner
Wayne H
WH
Ogasaka
Yasushi
Y
Tamura
Keisuke
K
Okajima
Takashi
T
Tawara
Yuzuru
Y
Yamashita
Koujun
K
Misaki
Kazutami
K
Kunieda
Hideyo
H