Position-sensitive CdTe detector using improved crystal growth method. Final report
The feasibility of developing a position-sensitive CdTe detector array for astronomical observations in the hard X-ray, soft gamma ray region is demonstrated. In principle, it was possible to improve the resolution capability for imaging measurements in this region by orders of magnitude over what is now possible through the use of CdTe detector arrays. The objective was to show that CdTe crystals of the quality, size and uniformity required for this application can be obtained with a new high pressure growth technique. The approach was to fabricate, characterize and analyze a 100 element square array and several single-element detectors using crystals from the new growth process. Results show that detectors fabricated from transversely sliced, 7 cm diameter wafers of CdTe exhibit efficient counting capability and a high degree of uniformity over their entire areas. A 100 element square array of 1 sq mm detectors was fabricated and operated.
- Research Organization:
- San Diego Supercomputer Center, CA (USA)
- OSTI ID:
- 5549283
- Report Number(s):
- N-89-25051; NASA-CR-183427; NAS-1.26:183427; TRN: 91-010999
- Country of Publication:
- United States
- Language:
- English
Similar Records
MBE grown CdTe photoconductor array detector for x-ray measurements
Performance of MBE grown CdTe photoconductor arrays for hard x-ray detection
Related Subjects
CADMIUM TELLURIDES
CRYSTAL GROWTH
COSMIC RADIATION
POSITION SENSITIVE DETECTORS
GAMMA RADIATION
X RADIATION
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
PROGRESS REPORT
REMOTE SENSING
CADMIUM COMPOUNDS
CHALCOGENIDES
DATA
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
INFORMATION
IONIZING RADIATIONS
MEASURING INSTRUMENTS
NUMERICAL DATA
RADIATION DETECTORS
RADIATIONS
TELLURIDES
TELLURIUM COMPOUNDS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation