نتایج جستجو برای: ray spectrometer

تعداد نتایج: 321697  

Journal: :Journal of the Optical Society of America 1922

2017
Sven A. E. Johansson

The coincidence spectrometer consists of two scintillation spectrometers, each of which can be used as either a beta-ray or a gamma-ray spectrometer, depending on what crystals are used. The pulses from the first spectrometer are analyzed with a single channel analyzer. The pulses corresponding to a certain energy are picked out with the analyzer and are fed into one channel of a coincidence ci...

2016
Miyuki Sakaguchi Tetsunari Kimura Takuma Nishida Takehiko Tosha Hiroshi Sugimoto Yoshihiro Yamaguchi Sachiko Yanagisawa Go Ueno Hironori Murakami Hideo Ago Masaki Yamamoto Takashi Ogura Yoshitsugu Shiro Minoru Kubo

UV-visible absorption spectroscopy is useful for probing the electronic and structural changes of protein active sites, and thus the on-line combination of X-ray diffraction and spectroscopic analysis is increasingly being applied. Herein, a novel absorption spectrometer was developed at SPring-8 BL26B2 with a nearly on-axis geometry between the X-ray and optical axes. A small prism mirror was ...

Journal: :The Review of scientific instruments 2013
M Szlachetko M Berset J-Cl Dousse J Hoszowska J Szlachetko

We report on a high-resolution transmission-type curved crystal spectrometer based on the modified DuMond slit geometry. The spectrometer was developed at the University of Fribourg for the study of photoinduced X-ray spectra. K and L X-ray transitions with energies above about 10 keV can be measured with an instrumental resolution comparable to their natural linewidths. Construction details an...

2002
A. Shevelko A. Antonov I. Grigorieva Yu. Kasyanov O. Yakushev L. Knight Q. Wang

An x-ray focusing crystal von Hamos spectrometer was developed using mica and graphite cylindrical crystals (radius of curvature R=20 mm) with a CCD linear array detector. The commercial CCD (Toshiba model TCD 1304AP) used for x-ray detection has 3724 pixels (8 μm width and 200 μm height) giving a total length of ~30 mm. The CCD detector was absolutely calibrated using laser-produced plasmas. T...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده فیزیک 1387

چکیده ندارد.

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1994

Journal: :Review of Scientific Instruments 1955

Journal: :Proceedings of the International Astronomical Union 2015

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