نتایج جستجو برای: gamma discrimination
تعداد نتایج: 186928 فیلتر نتایج به سال:
Sodium iodide crystal co-doped with thallium and lithium is a promising scintillator wide application prospects for dual gamma neutron detection. In this study, compact gamma/neutron detector was developed based on 2-inch NaI(Tl+Li) (NaIL) readout 8 × silicon photomultiplier (SiPM) array. Dedicated transimpedance amplifier circuit the SiPM The energy resolution response linearity array were eva...
Gamma-ray emission from special nuclear material (SNM) is relatively easy to shield detection using modest amounts of high-Z material. In contrast, fast-neutrons are much more penetrating and can escape thick shielding without losing significant energy. Furthermore, fast neutrons provide a clear unambiguous signature the presence SNM with few competing natural background sources. The challenge ...
Introduction: Children with attention-deficit/hyperactivity disorder (ADHD) have some impairment in emotional relationship which can be due to problems in emotional processing. The present study investigated neural correlates of early stages of emotional face processing in this group compared with typically developing children using the Gamma Band Activity (GBA). Methods: A total of 19 childre...
Pulse shape discrimination performances of single stilbene crystal, EJ-299-33 plastic and Li loaded plastic scintillators have been compared. Pulse Gradient Analysis pulse shape discrimination algorithm has been tested for each scintillator sample, assessing their neutron/gamma separation. In this study each scintillator sample was irradiated with a Cf neutron source and, a real-time fast digit...
Fast oscillations in neural assemblies have been proposed as a mechanism to facilitate stimulus representation in a variety of sensory systems across animal species. In the olfactory system, intervention studies suggest that oscillations in the gamma frequency range play a role in fine odor discrimination. However, there is still no direct evidence that such oscillations are intrinsically alter...
Two spectrometers were examined for the discrimination of low-energy part 137Cs gamma-ray spectrum. Obtained spectra from compared with each other. To perform an exact comparison, partial and complete processes realized.
Neuronal orientation selectivity has been shown in animal models to require corticocortical network cooperation and to be dependent on the presence of GABAergic inhibition. However, it is not known whether variability in these fundamental neurophysiological parameters leads to variability in behavioral performance. Here, using a combination of magnetic resonance spectroscopy, magnetoencephalogr...
In this issue of Neuron, Pinto and Dan (2015) performed single-cell calcium imaging in the mouse dorsomedial prefrontal cortex to reveal correlated, cell-type-specific responses in three major GABA-ergic interneuron subtypes during a goal-directed sensory discrimination task.
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