Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Sandor L. Barna"'
Autor:
Ernie Fontes, Giorgio Rossi, Matthew J. Renzi, Donald H. Bilderback, Sol M. Gruner, Mark W. Tate, Sandor L. Barna, Eric F. Eikenberry, R.L. Wixted
Publikováno v:
Journal of Synchrotron Radiation. 6:1096-1105
X-ray test results from a prototype 92 × 100 pixel array detector (PAD) for use in rapid time-resolved X-ray diffraction studies are described. This integrating detector is capable of taking up to eight full-frame images at microsecond frame times.
Publikováno v:
Review of Scientific Instruments. 70:2927-2934
Calibration procedures are described for use with electronic x-ray detectors, with an emphasis on detectors based on fiber-optically coupled charge-coupled devices. Methods are detailed for removing spurious events, pixel pedestals, dark-current, spa
Autor:
Paul J. Sellin, Sandor L. Barna, G. Rossi, Sol M. Gruner, E.F. Eikenberry, Mark W. Tate, R.L. Wixted
Publikováno v:
Journal of Synchrotron Radiation. 5:252-255
An integrating pixel-array detector for recording time-resolved X-ray diffraction measurements on microsecond timescales has been designed and tested as a 4 × 4 pixel prototype. Operational characteristics and radiation tolerance are discussed. A 10
Autor:
Sandor L. Barna, Eric F. Eikenberry, R.L. Wixted, John A. Shepherd, Sol M. Gruner, Mark W. Tate
Publikováno v:
IEEE Transactions on Nuclear Science. 44:950-956
A 4 by 4 pixel array device has been designed and built as a prototype for a high-speed two-dimensional X-ray imaging detector. This detector is a two-tier device with an X-ray sensitive photo-diode array bump-bonded to a 1.2 micrometer CMOS analog i
Autor:
Sol M. Gruner, Michael E. Wall, Sandor L. Barna, Eric F. Eikenberry, J. L. Lowrance, Mark W. Tate
Publikováno v:
Journal of Applied Crystallography. 28:196-205
An efficient two-dimensional X-ray detector based on direct imaging of an X-ray-sensitive phosphor with a high-resolution (1024 × 1024) charge-coupled device (CCD) array has been constructed and characterized. High detective quantum efficiency is ob
Autor:
Eric R. Fossum, Demetri Psaltis, Fai H. Mok, George Panotopoulos, Sandor L. Barna, Jose Mumbru, Suat U. Ay, Xin An
Publikováno v:
SPIE Proceedings.
The Optically Programmable Gate Array (OPGA), an optical version of a conventional FPGA, benefits from a direct parallel interface between an optical memory and a logic circuit. The OPGA utilizes a holographic memory accessed by an array of VCSELs to
Autor:
Giorgio Rossi, R.L. Wixted, Mark W. Tate, Matthew J. Renzi, Sol M. Gruner, D. H. Bilderback, Sandor L. Barna, Ernie Fontes, Eric F. Eikenberry
Publikováno v:
AIP Conference Proceedings.
We are developing an integrating Pixel Array Detector (PAD) for microsecond time-resolved x-ray diffraction. The current detector prototype has a format of 92×100 pixels, each 150μm square, and covers an active area of 15×13.8 mm2. The detector wa
Autor:
Brian G. Rodricks, Sandor L. Barna, John A. Shepherd, Sol M. Gruner, R.L. Wixted, Mark W. Tate
Publikováno v:
SPIE Proceedings.
A large-area pixel x-ray detector is being developed to collect eight successive frames of wide dynamic 2D images at 200kHz rates. Such a detector, to conjunction with a synchrotron radiation x-ray source, will enable time-resolved x-ray studies of p
High-resolution macromolecular structure determination using CCD detectors and synchrotron radiation
Autor:
Eric F. Eikenberry, Richard L. Walter, Sandor L. Barna, Mark W. Tate, Daniel J. Thiel, Michael E. Wall, Steven E. Ealick, Sol M. Gruner
Publikováno v:
Structure (London, England : 1993). 3(8)
Background: Synchrotron radiation sources have made impressive contributions to macromolecular crystallography. The delay in development of appropriate X-ray detectors has, however, been a significant limitation to their efficient use. New technologi
Publikováno v:
X-Ray Detector Physics and Applications II.
Incorporation of polycrystalline phosphor screens into efficient, high precision x-ray detectors requires an understanding of the subtleties of x-ray capture and subsequent light transmission in the screen, as well as an awareness of how phosphors af