Recent content by nykon

Hmm, no response from the community. Maybe someone knows if there is a model of p+ fluxes in the keV energy range, especially up to 100 keV? nykon

Dear Forum Users, I am looking for a database of proton fluxes. I have found already the SOHO database: http://umtof.umd.edu/pm/ but I need also the database for energy range of 1keV to 100 keV range. Does someone could send me some hints where to search? nykon

Yes, I have got problem with sr concept:p Let's say that the distance between source and the detector is 1m. My detector has effective area of 1 cm^2. So by how many sr I should multiply my flux? My answer would be: The area of the sphere with radius of 1m^2 is: S = 40000 \pi [cm^2]...

Dear forum users, I have a quite simple question. I have got a flux of protons measured in 1/(cm^2 s sr), I would like to have it in 1/(cm^2 s). nykon

Dear Forum Users, I have got more math question rather then the physics question. Does someone know if: \mid d(x)\mid^2 equals just d(x), here d(x) is just the Dirac delta ? best regards, nykon

Thats why I am confused. I really don't know why in the "final" equation the Im(-\phi_{q,w}) appears. Why we "cut" the Re part? These textbook is available online, but I guess one has to pay for it. Another publication where one can find these formulas is: "Interaction of Slow Ions with...

Hi Forum! I have got a question about the induced scalar potential. I will present the problem from beginning. Lets say we have a Poisson's equation in form: \epsilon \nabla^2 \phi = -4\pi \varrho(r,t) where \epsilon is the dielectric constant. By use of the Fourier transform...