Recent content by sakkoyun

My aim is to know the technique with a basic examples. It is not do an article all together. I have no realistic data. Again, I would like to know the technique. Because of someone, I made up an element, a realistic peaks and a realistic half life. I do not have any of them. Just technique I...

I was choosen the numbers randomly for an illustration. Actually the half lives that I measured are 65 min, 67 min and 66 min.

Ga69 was bombarded by 10 MeV photon. A neutron was emiited from Ga69. The unstable Ga68 decayed to Zn68.

Zn68 was created after reaction. 3 gamma peak are clear in gamma spectra. 805, 1077 and 1260 keV. After analyzing each three peaks individually, I got three different half-life values. (Analyzing is performed by investigating the peak area with time. And obtaining decay (growth) curve). Which...

Thank you very much. With the errors, 15 +-0.3 14+-0.1 16+- 0.5 The 1200 keV peak is more intense. The others are small peaks. Will I get an average of all them? Namely, (15+14+16)/3=15. Or, will I get the half-life as 16 due to the fact that 1200 keV is more intense. Or, will I get 14 for...

Hello, I have a gamma spectrum of one element (X). There are several gamma peak in the spectrum. For example, 800 keV peak, 1000 keV peak and 1200 keV. I have an information about the peak area changing with time. Namely, I know the peak area in different times. So I can calculate the...

Thank you very much for your interest. According to the results from you: 1. SxSy-SySx=0. This equation don't tell us that these operators can be commuted each other. Actually, we can not measure the polarization of the light in the z direction via the apparatus given in the first post...

Dear physicist, I designed an experiment for my undergraduate students. As we know, for spin operators, the commutation relation is [Si,Sj]=ihSk We also know, if we use two polarizers which are perpendicular each other, there is no light other side after polarizers. Namely apparatus is...

Hello all, lets think we have a segmented gamma-ray detector. when a gamma-ray interacts several segment of the detector, it deposits energies in each of them. And we can get a energy spectrum due to this gamma-ray. is the signal from core of the detector or from segments? what is the meaning...