Development of mercuric iodide energy dispersive x-ray array detectors
There are various areas of synchrotron radiation research particularly Extended X-Ray Absorption Fine Structure (EXAFS) on dilute solutions and anomalous scattering, which would strongly benefit from the availability of energy dispersive detector arrays with high energy resolution and good spatial resolution. The goal of this development project is to produce high energy resolution mercuric iodide (HgI/sub 2/) detector sub-modules, consisting of several elements. These sub-modules can later be grouped into larger arrays of 100-400 elements. A prototype 5 element HgI/sub 2/ array detector was constructed and tested. Dimensions of each element were 7.3 mm x 0.7 mm. An energy resolution of 335 eV (FWHM) for Mn0K..cap alpha.. at 5.9 keV has been measured. The novel fiber-optic pulsed light feedback has been introduced into the charge preamplifiers in order to minimize electronic crosstalk between channels.
- Research Organization:
- Univ. of Southern California, Institute of Physics, 4676 Admiralty Way, Suite number932, Marina del Rey, CA (US)
- OSTI ID:
- 6996389
- Report Number(s):
- CONF-871006-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. 35:1; Conference: 34. nuclear science symposium and 19. nuclear power systems symposium, San Francisco, CA, USA, 21 Oct 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MERCURY IODIDES
FABRICATION
PERFORMANCE TESTING
X-RAY EQUIPMENT
ABSORPTION SPECTRA
DILUTION
ENERGY RESOLUTION
FEEDBACK
FIBER OPTICS
FINE STRUCTURE
KEV RANGE 01-10
PULSES
SOLUTIONS
SYNCHROTRON RADIATION
X-RAY DETECTION
BREMSSTRAHLUNG
DETECTION
DISPERSIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
EQUIPMENT
HALIDES
HALOGEN COMPOUNDS
IODIDES
IODINE COMPOUNDS
KEV RANGE
MERCURY COMPOUNDS
MERCURY HALIDES
MIXTURES
RADIATION DETECTION
RADIATIONS
RESOLUTION
SPECTRA
TESTING
440300* - Miscellaneous Instruments- (-1989)