Si(Li) x-ray detectors with amorphous silicon passivation

Conference · Sat Oct 01 00:00:00 EDT 1983

OSTI ID:5235709

Walton, J T; Pehl, R H; Wong, Y K; Cork, C P

Lithium-drifted silicon (Si(Li)) detectors with thin lithium n/sup +/ contacts and amorphous silicon (..cap alpha..-Si) junction passivation are described. These detectors (7 mm thick, 9 cm/sup 2/ area) are intended for use in a six element detector array which is designed to measure trace amounts of plutonium in soil samples. Results are given showing a spectral resolution of approx. 400 eV (FWHM) for the 17.8 keV N/sub p/ L x-rays entering through either these detectors. Measurements on the effects of the fractional H/sub 2/ concentration on the electrical behavior of the ..cap alpha..-Si/Si interface are reported. The increase with time in the lithium window thickness when the detectors are stored at room temperature is discussed.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5235709
• Report Number(s): LBL-15908; CONF-831015-33; ON: DE84006060
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALKALI METALS
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM ISOTOPES
DESIGN
DETECTION
ELEMENTS
EVALUATION
HEAVY NUCLEI
ISOTOPES
LITHIUM
METALS
NEPTUNIUM 237
NEPTUNIUM ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
PASSIVATION
PLUTONIUM
RADIATION DETECTION
RADIOISOTOPES
SEMIMETALS
SILICON
SOILS
TRANSURANIUM ELEMENTS
X-RAY DETECTION
YEARS LIVING RADIOISOTOPES