Development of a Fast-Framing X-Ray Camera With Wide Dynamic Range for High-Energy Imaging

Author(s):  
Katherine S. Shanks ◽  
Hugh T. Philipp ◽  
Mark W. Tate ◽  
Prafull Purohit ◽  
Sol M. Gruner
Author(s):  
Katherine S. Shanks ◽  
Hugh T. Philipp ◽  
John T. Weizeorick ◽  
Michael Hammer ◽  
Mark W. Tate ◽  
...  

Author(s):  
Katherine S. Shanks ◽  
Hugh T. Philipp ◽  
Divya Gadkari ◽  
John T. Weizeorick ◽  
Jon Baldwin ◽  
...  

Author(s):  
Katherine S. Shanks ◽  
Hugh T. Philipp ◽  
John T. Weizeorick ◽  
Michael Hammer ◽  
Mark W. Tate ◽  
...  

2015 ◽  
Author(s):  
Sumeet Shrestha ◽  
Hiroki Kamehama ◽  
Shoji Kawahito ◽  
Keita Yasutomi ◽  
Keiichiro Kagawa ◽  
...  

Author(s):  
C. P. Lambropoulos ◽  
V. V. Zografos ◽  
G. Theodoratos ◽  
D. Loukas

1988 ◽  
Vol 32 ◽  
pp. 211-220 ◽  
Author(s):  
Andreas Prange ◽  
Heinrich Schwenke

Total-reflection X-ray fluorescence spectrometry, abbreviated as TXRF, is known for its high sensitivity down to the low pg-level or sub-ppb level, respectively, and its wide dynamic range of about three to four orders of magnitude (Yoneda and Horiuchi, 1971, Wobrauschek and Aiginger, 1980; Knoth and Schwenke, 1978 and 1980, Aiginger and Wobrausohek, 1985, Michaelis et al., 1985, Prange, 1987). Meanwhile several laboratories have purchased commercially available TXRF spectrometers and have started to report favourable about this technique. Applications have been reported from various disciplines: These are estuarine and marine water quality management and research, air pollution studies, mineralogical investigations, biology and medicine (Prange, 1987, Prange et al, 1985; Prange and Kremling, 1985, Prange et al., 1987, Stöβel and Prange, 1985, Michaelis, 1986, Ketelsen and Knöchel, 1985, Leland et al., 1987, von Bohlen et al., 1987, Junge et al., 1983, Hentschke et al., 1985, Hentschke et al., 1985, Gerwinski and Goetz, 1987, von Bohlen et al., 1987), In spite of its close kinship to conventional EDXRF , TXRF is quite different with respect to operation and performance and provides complementary capabilities.


2014 ◽  
Vol 70 (a1) ◽  
pp. C685-C685
Author(s):  
Hugh Philipp ◽  
Katherine Shanks ◽  
Mark Tate ◽  
Joel Weiss ◽  
Sol Gruner

New and improved synchrotron radiation sources enable experiments that demand the ability to acquire successive hard (e.g., 10 keV) x-ray images at sub-microsecond rates or to quickly acquire x-ray patterns encompassing intensities that vary by 10^6 or more across single images. We describe two novel integrating Pixel Array Detectors (PADs) developed at Cornell University that accomplish these objectives. The Mixed-Mode PAD (MM-PAD) frames at > 1 KHz and can readily detect signals within a single image ranging from single x-rays to over 107 x-rays/pixel/frame. The Keck-PAD can acquire 8-12 successive images at frame rates approaching 10 MHz with a range of single x-rays up to about 10^4 x-rays/pixel/frame. The operating principles of the MM-PAD and Keck-PAD, respectively, are described. We also describe examples of experiments that have been performed at various synchrotron radiation sources.


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