Recent content by e2718281

hi, What is the difference between radial polarization and optical vortex? thx http://en.wikipedia.org/wiki/Radial_polarization http://en.wikipedia.org/wiki/Optical_vortex http://en.wikipedia.org/wiki/Angular_momentum_of_light http://en.wikipedia.org/wiki/Orbital_angular_momentum_of_light...

I have used X-ray diffraction for crystalline analysis. I know how to protect the body from radiation in the lab. But I am not specialist in radiation. In Fukushima, residents living within 20km (~13 miles) of the nuclear station must evacuate their homes. But they naturally don't have...

thank you, Astronuc. for example, to decrease the radiation to 1%, how much thickness is necessary? (Most Japanese houses are made ​​of wood...)

Do wooden wall or window glass give good protection from penetrating radiation such as gamma rays?

I am studying the optical activity of the lanthanide(III) complexes. In the ligand field model, the ligand field hamiltonian operator is described in the sum of the electrostatic interaction between the lA pole of the lanthanide3+ charge distribution and the lL pole of the Lth ligand charge...