Phi Rad Con Module 7

Front 1

Excitation

Back 1

Any process that add enough energy to an electron of an atom or molecule so that it occupies a higher energy state than its lowest bound electron

Front 2

Bremsstrahlung

Back 2

The radioactive energy loss of moving charges particles as they interact with the matter through which they are moving

Front 3

Specific Ionization

Back 3

The number of ion pairs formed by the particle per unit path length and is often used when the energy loss is continuous and constant such as with beta particles or alpha particles

Front 4

Linear energy Transfer (LET)

Back 4

Measure of energy deposited in an absorber by a charged particle

Front 5

Stopping power

Back 5

Ability to remove energy from a beam of changed particles. Measured as the average energy lost by a charged particle per unit distance traveled.

Front 6

Range

Back 6

If a particle has a high range the absorber has a low stopping power. Short range, high stopping power

Front 7

3 major mechanisms of energy transfer for beta particulate radiation

Back 7

Ionization excitation brsstruhlung

Front 8

Identify two major mechanisms of energy transfer for alpha particulate radiation .

Back 8

Ionization and excitation

Front 9

3 major mechanisms by which gamma photon radiation interacts with matter

Back 9

Photo electric effect, Compton scattering, pair production

Front 10

4 main categories of neutrons

Back 10

Thermal intermediate fast relativistic

Front 11

3 possible results of neutron capture for slow neutrons

Back 11

Radioactive capture, charged particle emission, fission

Front 12

Elastic scattering

Back 12

When a neutron strikes a nucleus. Depending on size Transfers energy to that nucleus

Front 13

Inelastic scattering

Back 13

When a neutron strikes a large nucleus. Neutron penetrates nucleus, transfers energy then exits with a small amount of energy

Front 14

Alpha shielding

Back 14

Paper, dead cell layer of skin, few cm of air

Front 15

Beta shielding

Back 15

Rubber, aluminum, plastic

Front 16

Gamma

Back 16

Lead, depleted uranium

Front 17

Neutron shielding

Back 17

Oil, plastic, water

Front 18

Ionization

Back 18

Any process that results in the removal of a bound electron from an electrically neutral atom by adding enough energy to overcome its binding energy