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EJ-276 pulse-shape discriminating (PSD) plastic scintillator enables the separation of gamma and fast neutron signals on the basis of their timing characteristics. This scintillator replaces all versions of EJ-299-33 and EJ-299-34 PSD scintillators and embodies the following improvements:
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Excellent physical hardness, equal to or superior to that of standard plastic scintillators
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Long-term stability of scintillation and optical characteristics
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Basic PSD properties increased to being comparable to the best liquid scintillators
EJ-276G with green fluorescence is also available for use with solid-state sensors.
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PROPERTIES
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EJ-276
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EJ-276G
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Light Output (% Anthracene)
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56
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52
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Scintillation Efficiency (photons/1 MeV e-)
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8,600
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8,000
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Wavelength of Maximum Emission (nm)
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425
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490
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No. of H Atoms per cm3 (x1022)
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4.546
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4.546
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No. of C Atoms per cm3 (x1022)
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4.906
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4.906
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No. of Electrons per cm3 (x1023)
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3.533
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3.533
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Density (g/cm3)
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1.096
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1.096
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Approx. Mean Decay Times of First 3 Components (ns)
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Gamma Excitation
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13, 35, 270
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—
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Neutron Excitation
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13, 59, 460
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—
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