نتایج جستجو برای: square photomultiplier tubes

تعداد نتایج: 157109  

Journal: :Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society 2006
Emmanouil K. Papanastassiou Kyriakos Psarrakos Anastasios Sioundas Apostolos Ballas Dimitrios Koufogiannis Konstantinos Hatziioannou

The aim of the present study was to investigate in detail the variation of the intrinsic spatial resolution across the useful field of view (UFOV) of gamma-cameras and to explore whether this variation could lead to observable effects in clinical images. Two gamma-cameras were used, without their collimators, to acquire 560 (99m)Tc point source images at different points across their UFOVs, in ...

Journal: :Journal of Instrumentation 2021

SNO+ is a large-scale liquid scintillator experiment with the primary goal of searching for neutrinoless double beta decay, and located approximately 2 km underground in SNOLAB, Sudbury, Canada. The detector acquired data two years as pure water Cherenkov detector, starting May 2017. During this period, optical properties were measured situ using deployed light diffusing sphere, improving model...

Journal: :Transactions of the JSME (in Japanese) 2017

The energy absorbing capability is one of the most important aspects of crushing behavior of a structure subjected to axial impact. In this paper, a simple practical method is introduced to enhance the crushing behavior of this kind of structure. The axial impact of metallic energy absorbing thin-walled tubes with special shaped cross-section is simulated using LS-DYNA software. The effect of c...

Journal: :Nuclear Engineering and Design 1994

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2008

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