نتایج جستجو برای: radioactive decay period
تعداد نتایج: 580142 فیلتر نتایج به سال:
We calculate the total γ-ray line emission at ∼450 keV that accompanies 7 Li and 7 Be production by cosmic-ray interactions, including the delayed line emission at 0.478 MeV from 7 Be radioactive decay. We present a new γ-ray spectroscopic test which has the potential to give direct information on the nature of the interstellar regions into which 7 Be ions propagate and decay. Finally, we evalu...
There is no place on the Earth, the planet we live on, where the natural background radiation level is zero. Since the birth and even in our fetal stage, we have been exposed to different sources of natural radiation. Life, in fact, evolved in a radiation environment that was much more harsh than today. Earth serves as a source of terrestrial radiation. Uranium, thorium, and radium are among th...
Prior scientific knowledge has shown that the radioactive decay of nuclei can be modeled as a series of independent, random events. [1] The probability for the occurence of such events can thus be modeled by Poisson statistics. In this experiment, we studied the radioactive decay of Cs by using a NaI scintillator. We recorded the counts per second for 100 consecutive one-second long intervals a...
The three-body decay ' 0 ~ 2p + 'OC was studied following production via single-neutron stripping from a radioactive "0 projectile. This is the first observation of two-proton emission from an unbound ground state where the one-proton emission channel is energetically closed beyond the lightest case of Be. No evidence for He emission is seen, despite predictions for a large diproton branching r...
The EURISOL β-beam project addresses the design of accelerators for the production of high flux neutrino beams. With the aim to exploit the existing PS and SPS synchrotrons at CERN, it is proposed to create neutrinos and antineutrinos from high intensity radioactive beams. Boosted to high relativistic energies in the SPS and then injected into an elongated storage ring, narrow cones of neutrino...
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