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EJ-315 is based on highly purified deuterated benzene and is useful for fast neutron research. A particularly highly enriched deuterated benzene is employed to achieve the very high D:H ratio of 141:1. A non-deuterated version, EJ-315H, is also available for comparison studies. EJ-315H is based on normal standard benzene, but otherwise the formulae of the two scintillators are identical. The properties of each are presented below.

Because of the toxic nature of benzene, it is strongly recommended that the liquids be ordered in the encapsulated form so you need only to mount your phototubes in order to put the scintillator into service.


Light Output (% Anthracene) 60 60
Scintillation Efficiency (photons/1 MeV e-)
9,200 9,200
Wavelength of Maximum Emission (nm) 425 425
Decay Time, Short Component (ns) 3.5 3.5
Bulk Light Attenuation Length (m) >3 >3
Specific Gravity 0.954 0.878
Refractive Index 1.498 1.501
Flash Point (°C) -11 -11
Boiling Point (°C at 1 atm) 79 80
No. of D Atoms per cm3 (x1022)
4.06 -
No. of H Atoms per cm3 (x1020) 0.0287 4.04
No. of C Atoms per cm3 (x1022) 4.10 4.06
No. of Electrons per cm3 (x1023) 2.87 2.84


EJ-315 Emission Spectrum