| Crystals | Light yield (photon/neutron) | Decay time (ns) | Emission wavelength (nm) | Transparency (t=10mm) |
|---|---|---|---|---|
| LiCAF (Ce) | ∼5,000 | 40 | 280∼320 | 90％< |
| LiCAF (Eu) | ∼40,000 | 1,600 | 360∼390 | 90％< |
LiCAF single crystals are excellent materials for neutron/gamma discrimination because of their low gamma-ray sensitivity due to their low density of 2.99 g/cm³ . The Eu-doped LiCAF has a large luminescence and the Ce doped LiCAF has a short decay time.
We commercialize crystals, arrays, and fibers for BNCT. The raw Li is available in natural and ⁶Li 95% enriched, and the neutron sensitivity can be adjusted. LiCAF flexible sheet is a transparent sheet with 0.9 to 3.6x10²¹ atom/cm³ fine LiCAF crystals dispersed in silicone resin. It is possible to make a large area of this.
It can be used as an alternative to ³He, neutron imaging, neutron diffraction, and survey meter.
Neutron detection
“Thrmal neutron detection properties of Verium doped LiCaAlF₆ single crystals”
J.Iwanowska,et al., Nucl. Instr. and Meth. A, 652, 319-322(2011).“Basic study of Europium doped LiCaALF₆ scintillator and its capability for thrmal neutron imaging applicattion”
T. Yanagida, et al., Opt Mater., 33, 1243-1247(2011).
C&A Corporation
1-16-23 Ichibancho, Aoba-ku, Sendai, Miyagi, 980-0811 JAPAN
TEL: +81-22-796-2117
E-mail : infoc-and-a.jp
