Development of mercuric iodide energy dispersive x-ray array detectors

Conference · Mon Feb 01 04:00:00 EST 1988 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6996389

Iwanczyk, J S; Warburton, W K; Dabrowski, A J; Hedman, B; Hodgson, K O; Patt, B E

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-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 35:1
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ABSORPTION SPECTRA
BREMSSTRAHLUNG
DETECTION
DILUTION
DISPERSIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
ENERGY RESOLUTION
EQUIPMENT
FABRICATION
FEEDBACK
FIBER OPTICS
FINE STRUCTURE
HALIDES
HALOGEN COMPOUNDS
IODIDES
IODINE COMPOUNDS
KEV RANGE
KEV RANGE 01-10
MERCURY COMPOUNDS
MERCURY HALIDES
MERCURY IODIDES
MIXTURES
PERFORMANCE TESTING
PULSES
RADIATION DETECTION
RADIATIONS
RESOLUTION
SOLUTIONS
SPECTRA
SYNCHROTRON RADIATION
TESTING
X-RAY DETECTION
X-RAY EQUIPMENT