Radioactivity and Nuclear Physics

This sum has been solved as follows: suppose x is the number of alpha and y is the number of beta particles emitted. This can be represented as ₉₂U²³⁸ ---------------> ₈₂Pb²⁰⁶ + x ₂He⁴ + y _-1e⁰ . Equating mass number on both the sides, we have 238 = 206 + 4x + 04x = 32 or x = 8. Similarly 92 = 82 +2x -yy = 98 - 92 = 6. However, calculation mistakes are not ruled out.

The B-Factory at SLAC is designed to study B-mesons, which are subatomic particles containing a bottom quark.

The B-Factory at SLAC was specifically designed to produce B mesons in large quantities to study CP violation. Mesons are particles composed of a quark and an antiquark.

Cobalt-60 is a radioactive isotope commonly used in radiotherapy to treat cancer by targeting and destroying malignant cells.

Transmutation is the conversion of one chemical element or isotope into another. This occurs through nuclear reactions, such as radioactive decay or bombardment.

The photoelectric effect describes the phenomenon where metals emit electrons when exposed to electromagnetic radiation, such as light, of sufficient frequency. Protons and neutrons are bound within the nucleus and are not emitted in this process.

The becquerel is a unit used to measure a radioactivity. One becquerel is that quantity of a radioactive material that will have 1 transformations in one second. Often radioactivity is expressed in larger units like: thousands (kBq), one millions (MBq) or even billions (GBq) of a becquerels. As a result of having one becquerel being equal to one transformation per second, there are 3.7 x 1010 Bq in one curie.

Thallium-201 is used in medicine to create images of the heart.

Beta decay occurs when the neutron to proton ratio is too great in the nucleus and causes instability. In basic beta decay, a neutron is turned into a proton and an electron. The electron is then emitted. e.g. hydrogen-3.C-14 & N-16 undergo radioactive decay by beta decay.

Yttrium-90 undergoes beta decay.Its half life is 64.1 hours .It is used in liver cancer therapy.

The term gamma ray is used to denote electromagnetic radiation from the nucleus as a part of a radioactive process. The energy of nuclear radiation is extremely high because such radiation is born in the intense conflict between the nuclear strong force and the electromagnetic force, the two strongest basic forces.

All the above mentiones fields uses radioactive isotopes.

It is an energetic photon or light wave in the same electromagnetic family as light and x-rays, but is much more energetic and harmful. It is capable of damaging living cells as it slows down by transferring its energy to surrounding cell components. Gamma ray sources are used to find flaws in pipes and vessels and to check the integrity of welds in steel.

Magnetic resonance imaging (MRI) is a noninvasive medical test that helps physicians diagnose and treat medical conditions. MRI uses a powerful magnetic field, radio frequency pulses and a computer to produce detailed pictures of organs, soft tissues, bone and virtually all other internal body structures. The images can then be examined on a computer monitor, transmitted electronically, printed or copied to a CD. MRI does not use ionizing radiation.

It is an energetic photon or light wave in the same electromagnetic family as light and x-rays, but is much more energetic and harmful. It is capable of damaging living cells as it slows down by transferring its energy to surrounding cell components. The Rs - 500 note detects energetic gamma rays through the case walls. Gamma ray sources are used to find flaws in pipes and vessels and to check the integrity of welds in steel.