Design and Optimization of a Pinhole Collimator for a High Resolution Emission Gamma Ray Tomography System Using a Pixelated CAT Detector

2019 ◽  
Author(s):  
J. Graham ◽  
S. Kilby
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Design And Optimization ◽  
Pinhole Collimator ◽  
Tomography System

Design of a Fuel Phantom for a High-Resolution Emission Gamma Ray Tomography System Using a Pixelated CZT Detector

2020 ◽  
Author(s):  
J. Graham ◽  
S. Kilby ◽  
J. Fletcher
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Tomography System

Compact high-resolution gamma-ray computed tomography system for multiphase flow studies

2013 ◽  
Vol 84 (3) ◽  
pp. 033106 ◽  
Author(s):  
A. Bieberle ◽  
H. Nehring ◽  
R. Berger ◽  
M. Arlit ◽  
H.-U. Härting ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Multiphase Flow ◽  
Gamma Ray ◽  
Tomography System ◽  
Gamma Ray Computed Tomography ◽  
High Resolution Gamma

Measurement of Fluid Distributions in a Rotating Fluid Coupling Using High Resolution Gamma Ray Tomography

2008 ◽  
Vol 130 (9) ◽  
Author(s):  
U. Hampel ◽  
D. Hoppe ◽  
A. Bieberle ◽  
R. Kernchen ◽  
K.-H. Diele ◽  
...  
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Rotating Fluid ◽  
Pump Speed ◽  
Tomography System ◽  
Fluid Coupling ◽  
Gamma Ray Detector ◽  
Gamma Ray Computed Tomography ◽  
Acquisition Technique ◽  
High Resolution Gamma

Gamma ray tomography has been used to visualize fluid distributions in a rotating fluid coupling in different operation points at a pump speed of 780rpm and lower turbine speeds. The gamma ray computed tomography system comprises a Cs-137 isotopic source and a high resolution gamma ray detector. An angle synchronized tomographic data acquisition technique was applied to produce sharp slice images from different positions along the coupling axis. The data have been used to assess the hydraulic behavior of the fluid coupling and to help improve our understanding of the flow structure development and its implications on torque transfer in such a device.

THE DECAY OF Pm149

1960 ◽  
Vol 38 (12) ◽  
pp. 1577-1585 ◽  
Author(s):  
Agda Artna ◽  
Margaret E. Law
Keyword(s):  
High Resolution ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Conversion Coefficient ◽  
Beta Spectrum ◽  
Multichannel Analyzer ◽  
Coincidence Spectrometer ◽  
Beta Spectrometer ◽  
Beta Group

The 52.8-hour activity of Pm149 has been investigated using a high resolution beta spectrometer, a lens type coincidence spectrometer, and a scintillation spectrometer in conjunction with a multichannel analyzer. The beta spectrum was found to consist of two groups with maximum energies of 1.072 ± 0.002 Mev and 0.786 ± 0.004 Mev, and intensities of 97.1 ± 0.4% and 2.9 ± 0.4% respectively. A gamma ray of energy 285.7 ± 0.3 kev was found to be in coincidence with the 0.786-Mev beta group. No other gamma rays with intensities greater than 0.1% were found. The K conversion coefficient for the 286-kev transition was measured to be 0.075 ± 0.008. This together with the values of 6.5 ± 0.7 and 4 ± 1 obtained for the K/L and L/M conversion ratios respectively indicate that this transition is M1 in character with less than 10% E2 admixture.

A High-Resolution Gamma-Ray Spectrometer for Use in Outer Space

1968 ◽  
Vol 15 (1) ◽  
pp. 242-251 ◽  
Author(s):  
J. Howard Marshall ◽  
Edward Halpern
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Outer Space ◽  
Gamma Ray Spectrometer ◽  
High Resolution Gamma
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