Cryogenic detector development at LLNL: ultraviolet x-ray, gamma-ray and biomolecule spectroscopy

Conference · Tue Aug 12 00:00:00 EDT 1997

OSTI ID:645067

Labov, S E; Frank, M; le Grand, J B ^[1]

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1. and others

We are developing low-temperature detectors for optical, ultraviolet, X-ray, and gamma-ray spectroscopy, and for biomolecular mass spectrometry. We present development work on these detectors and materials analysis and biomolecular mass spectrometry. We have measured thin-film Nb/Al/Al2O3/AlNb superconducting tunnel junction (STJ) X-ray detectors in the 0.2 to 1 keV band with a range of different junction sizes and aluminum film thicknesses. In one case, we have achieved the statistical limit to the energy resolution of 13 eV FWHM at 227 eV with an output count rate of 20,600 cts/s.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 645067
• Report Number(s): UCRL-JC-128264; CONF-9707123-; ON: DE98050733; CNN: W-7405-Eng-48
• Resource Relation: Conference: 7. international workshop on low temperature detectors, Munich (Germany), 27 Jul - 2 Aug 1997; Other Information: PBD: 12 Aug 1997
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
36 MATERIALS SCIENCE
55 BIOLOGY AND MEDICINE
BASIC STUDIES
SPECTROMETERS
DESIGN
SEMICONDUCTOR DETECTORS
PERFORMANCE TESTING
X-RAY DETECTION
FLUORESCENCE SPECTROSCOPY
MASS SPECTROSCOPY