1. see http://j-park.jp/index.html.
2. see http://www.sns.gov.
3. see http://www.isis.rl.ac.uk/TargetStation2/.
4. Neutron scintillators using wavelength shifting fibers
5. J.D.P. Hutchinson, R.K. Richards, et al., in: Proceedings of the SPIE, The International Society for Optical Engineering, vol. 3769, 1999, p. 88.