Recent content by arrektor

When density functional theory is used to simulate a molecule adsorbed on a surface, it turns out that due to their interaction, a fraction of an electron is transferred from the surface to the molecule or vice versa. These interactions are normally categorised in interactions involving...

The surface photovoltage effect suggests that the potential at the surface of a semiconductor will change when it is illuminated since hole-electron pairs are created. The regions near the surface (depletion regions) contains defects that create a built-in voltage and built-in potential and...

I have the basic diagram for Compton scattering in mind, with electron and photon interacting at the left and an electron and photon coming out at right. If the binding energy of the electrons is not taken into account, would the process be similar to the basic diagram of Compton scattering?

Hello, is there a representation of the process taking place in X-ray photoelectron spectroscopy, describing the interaction of an incoming photon with the electron of the atom?

Doesn't six sigma mean that the possibility of being accurate is 99.99966%?

Choppy, what are the future carreer possibilities if you become a medical physicist. I study in Europe, so the CAMPEP and residency route is not the same here. But in terms of opportunities, by the time you become a Medical Physicist, can you do research or travel abroad? How can you deviate...

Well I thought I was interested mostly in Biological Physics. But I have worked for a year as a research assistant in a biol. physics lab and I realized that hate being in a Chemistry lab, doing mostly chemistry related stuff. I am very interested in quantum mechanics, so I presume that Solid...

The question that I would like to know some kind of an answer is what kind of phD offers the best non-academic/industrial opportunities. Solid State physics, Biological Physics or Medical Physics? Slainte.

Thank you very much. In fact, I tried to contact the company but I did not have any response for some time, so I supposed that I could give a go to this forum.

Hello, I have constructed a Faraday box containing electrodes that are going to detect the action potentials or/and local field potentials from inside the brain. I was wondering whether someone constructed something like this before and what strategies were used to reduce the noise...

Thank you. The most probable is the pickup on the electrodes. The problem is that the Faraday box works better when it is not earthed, then at some point noise starts to appear in the recording channels of the electrodes. To eliminate the noise, I Earth the Faraday box for a couple of...

Hello, I have constructed a Faraday box with alluminium sheets having holes on them. The problem is that the mains supply field is not canceled within this box. The box is about 50cmx50cm and hosts a number of electrodes and an electrical drive that moves these system of electrodes. I...

I suppose that it has to do with the temporal coherence of the source so this would mean that what we see in the graph is the change in visibility at different times during its expansion?

Hello there, I have a question concerning Michelson stellar interferometer. It is about stars ejecting mass in a thin luminous shell of gas expanding to a size greater than that of star itself. So it says in the exercise: a michelson interferometer is used as a fourrier transform...