منابع مشابه
Chandra X - Ray CenterMIT
Some observations are adversely affected by bias-parity errors. To explore the properties of these errors, 16,304 bias-parity error files were obtained from the archive for the interval from the beginning of the mission through July 8, 2010. Figure 1 shows histograms of the total number and the “valid” number (see sec. 1.5) of errors for each file. The results for the valid errors are also list...
متن کاملAn X-ray polarimeter for hard X-ray optics
Development of multi-layer optics makes feasible the use of X-ray telescope at energy up to 60-80 keV: in this paper we discuss the extension of photoelectric polarimeter based on Micro Pattern Gas Chamber to high energy X-rays. We calculated the sensitivity with Neon and Argon based mixtures at high pressure with thick absorption gap: placing the MPGC at focus of a next generation multi-layer ...
متن کاملChandra X - Ray CenterMIT Kavli Institute
Some observations are adversely affected by bias-parity errors. To explore the properties of these errors, 16,304 bias-parity error files were obtained from the archive for the interval from the beginning of the mission through July 8, 2010. Figure 1 shows histograms of the total number and the “valid” number (see sec. 1.5) of errors for each file. The results for the valid errors are also list...
متن کاملExtending The Methodology Of X-ray Crystallography To Allow X-ray Microscopy Without X-ray Optics
We demonstrate that the soft X-ray diffraction pattern from a micron-size noncrystalline specimen can be recorded and inverted to form a high-resolution image. The phase problem is overcome by oversampling the diffraction pattern. The image is obtained using an iterative algorithm. The technique provides a method for X-ray microscopy requiring no highresolution X-ray optical elements or detecto...
متن کاملPolycapillary X-ray optics for microdiffraction
Polycapillary optics, i.e. shaped arrays consisting of hundreds of thousands of hollow glass capillary tubes, can be used to redirect, collimate or focus X-ray beams. X-rays emitted over a large angular range from conventional laboratory-based sources can be transformed into a beam with a small angular divergence or focused onto a small sample or sample area. Convergent beams of X-rays, with co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optical Engineering
سال: 2012
ISSN: 0091-3286
DOI: 10.1117/1.oe.51.1.011013