This document is a receipt from a grocery store purchase on January 15th, 2022 for $58.74. It lists the items bought which include milk, eggs, bread, bananas, and ground beef. The receipt also includes the payment method which was a credit card ending in 4321.
The document discusses various nuclear reactions and interactions that can occur when nuclei are bombarded with particles like neutrons, photons, electrons, positrons, and other nuclei. These interactions include neutron capture, excitation, ionization, bremsstrahlung, pair production, coherent and incoherent scattering, the photoelectric effect, Compton scattering, and positron annihilation. Several examples of nuclear reactions are also provided, such as uranium-235 absorbing a neutron to become uranium-236, or boron-10 absorbing a neutron to become lithium-3 and an alpha particle.
The document discusses concepts in radiation physics including:
1) The photoelectric effect where electrons are ejected from atoms when exposed to electromagnetic radiation like x-rays, with the kinetic energy of the ejected electron related to the frequency of the radiation.
2) Absorption of x-rays in matter which follows an exponential decay relationship, and definitions of units used to measure absorbed radiation dose and exposure like the gray and roentgen.
3) Different types of radiation have different abilities to damage biological tissue, measured by their radiation weighting factor.
The document discusses quantum numbers which describe the specific properties of an electron in an atom. The principal quantum number n defines the shell and subshell of the electron. The angular momentum quantum number l defines the subshell type (s, p, d, f etc). The magnetic quantum number ml indicates the specific orbital within a subshell that the electron occupies.
This document is a receipt from a grocery store purchase on January 15th, 2022 for $58.74. It lists the items bought which include milk, eggs, bread, bananas, and ground beef. The receipt also includes the payment method which was a credit card ending in 4321.
The document discusses various nuclear reactions and interactions that can occur when nuclei are bombarded with particles like neutrons, photons, electrons, positrons, and other nuclei. These interactions include neutron capture, excitation, ionization, bremsstrahlung, pair production, coherent and incoherent scattering, the photoelectric effect, Compton scattering, and positron annihilation. Several examples of nuclear reactions are also provided, such as uranium-235 absorbing a neutron to become uranium-236, or boron-10 absorbing a neutron to become lithium-3 and an alpha particle.
The document discusses concepts in radiation physics including:
1) The photoelectric effect where electrons are ejected from atoms when exposed to electromagnetic radiation like x-rays, with the kinetic energy of the ejected electron related to the frequency of the radiation.
2) Absorption of x-rays in matter which follows an exponential decay relationship, and definitions of units used to measure absorbed radiation dose and exposure like the gray and roentgen.
3) Different types of radiation have different abilities to damage biological tissue, measured by their radiation weighting factor.
The document discusses quantum numbers which describe the specific properties of an electron in an atom. The principal quantum number n defines the shell and subshell of the electron. The angular momentum quantum number l defines the subshell type (s, p, d, f etc). The magnetic quantum number ml indicates the specific orbital within a subshell that the electron occupies.