A new all-digital time differential {gamma}-{gamma} angular correlation spectrometer
- II. Physikalisches Institut, Georg-August-Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany)
A new digital time differential perturbed angular correlation spectrometer, designed to measure the energy of and coincidence time between correlated detector signals, here correlated {gamma} photons, is presented. The system overcomes limitations of earlier digital approaches and features improved performance and handling. By consequently separating the data recording and evaluation, it permits the simultaneous measurement of decays with several {gamma}-ray cascades at once and avoids the necessity of premeasurement configuration. Tests showed that the spectrometer reaches a time resolution of 460 ps [using a {sup 60}Co sample and Lu{sub 1.8}Y{sub 0.2}SiO{sub 5}:Ce (LYSO) scintillators, otherwise better than 100 ps], an energy resolution that is equivalent to the limit of the used scintillation material, and a processing capability of more than 200 000 {gamma} quanta per detector and second. Other possible applications of the presented methods include nuclear spectroscopy, positron emission tomography, time of flight studies, lidar, and radar.
- OSTI ID:
- 22053782
- Journal Information:
- Review of Scientific Instruments, Vol. 81, Issue 7; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COBALT 60
DECAY
ENERGY RESOLUTION
GAMMA RADIATION
GAMMA SPECTROMETERS
OPTICAL RADAR
PERFORMANCE
PERTURBED ANGULAR CORRELATION
PHOSPHORS
POSITRON COMPUTED TOMOGRAPHY
SCINTILLATIONS
SPECTROSCOPY
TIME RESOLUTION
TIME-OF-FLIGHT METHOD