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MINERAL OIL BASED WITH PSD

EJ-325A

 

EJ-325A

 

EJ-325A is a mineral oil based liquid scintillator having pulse shape discrimination (PSD) properties for the separation of fast neutrons and gammas. EJ-325A replaces the original EJ-325. The new formula exhibits slightly improved scintillation efficiency and PSD properties and, importantly, has a very high flash point for safety and ease of shipping. With the mineral oil as a major solvent component, EJ-235A possesses greater optical clarity for use in large tanks.

EJ-325A exhibits considerably low solvent properties making it ideal for incorporation in containers fabricated with cast acrylic and PVC.

 

PROPERTIES EJ-25A
Light Output (% Anthracene) 62
Scintillation Efficiency (photons/1 MeV e-
9,500
Wavelength of Maximum Emission (nm) 425
Decay Time, Short Component (ns) ~3.5
Bulk Light Attenuation Length (m) >1
Specific Gravity 0.954
Refractive Index 1.55
Flash Point (°C) 146
Boiling Point (°C)
290-300
Vapor Pressure (mm Hg, at 20°C)
0.002
No. of H Atoms per cm3 (x1022) 6.73
No. of C Atoms per cm3 (x1022) 3.92
H:C Atomic Ratio 1.72
No. of Electrons per cm3 (x1023) 3.02

 

EJ-325A Emission Spectrum