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Title: CONTINUING THE DEVELOPMENT OF A 100 FEMTOSECOND X-RAY DETECTOR

Abstract

The detector is an x-ray streak camera running in accumulation mode for time resolved x-ray studies at the existing third generation synchrotron facilities and will also be used for the development and applications of the fourth generation x-ray sources. We have made significant progress on both the detector development and its applications at Synchrotron facilities.

Authors:
Publication Date:
Research Org.:
Kansas State University
Sponsoring Org.:
USDOE
OSTI Identifier:
840830
DOE Contract Number:
FG03-02ER15285
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Zenghu Chang. CONTINUING THE DEVELOPMENT OF A 100 FEMTOSECOND X-RAY DETECTOR. United States: N. p., 2005. Web. doi:10.2172/840830.
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Zenghu Chang. CONTINUING THE DEVELOPMENT OF A 100 FEMTOSECOND X-RAY DETECTOR. United States. doi:10.2172/840830.
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Zenghu Chang. Tue . "CONTINUING THE DEVELOPMENT OF A 100 FEMTOSECOND X-RAY DETECTOR". United States. doi:10.2172/840830. https://www.osti.gov/servlets/purl/840830.
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@article{osti_840830,
title = {CONTINUING THE DEVELOPMENT OF A 100 FEMTOSECOND X-RAY DETECTOR},
author = {Zenghu Chang},
abstractNote = {The detector is an x-ray streak camera running in accumulation mode for time resolved x-ray studies at the existing third generation synchrotron facilities and will also be used for the development and applications of the fourth generation x-ray sources. We have made significant progress on both the detector development and its applications at Synchrotron facilities.},
doi = {10.2172/840830},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 14 00:00:00 EDT 2005},
month = {Tue Jun 14 00:00:00 EDT 2005}
}
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Technical Report:
View Technical Report (0.86 MB)
DOI:  10.2172/840830
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  • The detector is an x-ray streak camera running in accumulation mode for time resolved x-ray studies at the existing third generation synchrotron facilities and will also be used for the development and applications of the fourth generation x-ray sources. We have made significant progress on both the detector development and its applications at Synchrotron facilities.

  • The purpose of the project was to develop a system which can ultimately be used: to identify knowledge deficiencies of individual x-ray technologists; to correct those deficiencies through continuing education; and to improve the performance of x-ray technologists on a national basis. (GRA)

  • ; ;
    The overall goal of this LDRD project was to develop instruments for use in the management of radioactive and hazardous wastes. Devices for identifying and imaging such wastes are critical to developing environmental remediation strategies. Field portable units are required to enable the on-site analysis of solids, liquids, and gas effluents. Red mercuric iodide ({alpha}-HgI{sub 2}) is a semiconductor material that can be operated as a high-energy-resolution radiation detector at ambient temperatures. This property provides the needed performance of conventional germanium- and silicon-based devices, while eliminating the need for the cryogenic cooling of such instruments. The first year of thismore » project focused on improving the materials properties of the mercuric iodide to enable the new sensor technology; in particular the charge carrier traps limiting device performance were determined and eliminated. The second year involved the development of a field portable x-ray fluorescence analyzer for compositional analyses. The third and final year of the project focused on the development of imaging sensors to provide the capability for mapping the composition of waste masses. This project resulted in instruments useful not only for managing hazardous and radioactive wastes, but also in a variety of industrial and national security applications.« less

  • The advanced detector development project at the University of Michigan has completed the first full year of its current funding. Our general goals are the development of radiation detectors and spectrometers that are capable of portable room temperature operation. Over the past 12 months, we have worked primarily in the development of semiconductor spectrometers with {open_quotes}single carrier{close_quotes} response that offer the promise of room temperature operation and good energy resolution in gamma ray spectroscopy. We have also begun a small scale effort at investigating the properties of a small non-spectroscopic detector system with directional characteristics that will allow identification ofmore » the approximate direction in which gamma rays are incident. These activities have made use of the extensive clean room facilities at the University of Michigan for semiconductor device fabrication, and also the radiation measurement capabilities provided in our laboratory in the Phoenix Building on the North Campus. In addition to our laboratory based activities, Professor Knoll has also been a participant in several Department of Energy review activities held in the Forrestal Building and at the Germantown site. The most recent of these has been service on a DOE review panel chaired by Dr. Hap Lamonds that is reviewing the detector development programs supported through the Office of Arms Control and International Security.« less

  • The advanced detector development project at the University of Michigan has completed the first full year of its current funding. The general goals are the development of radiation detectors and spectrometers that are capable of portable room temperature operation. Over the past 12 months, the authors have worked primarily in the development of semiconductor spectrometers with ``single carrier`` response that offer the promise of room temperature operation and good energy resolution in gamma ray spectroscopy. They have also begun a small scale effort at investigating the properties of a small non-spectroscopic detector system with directional characteristics that will allow identificationmore » of the approximate direction in which gamma rays are incident. These activities have made use of the extensive clean room facilities at the University of Michigan for semiconductor device fabrication, and also the radiation measurement capabilities provided in the laboratory in the Phoenix Building on the North Campus.« less