Basics

Question 1

attenuation

Answer 1

the reduction of the energy or intensity of an xray beam when it hits the material

Question 2

how does it happen

Answer 2

absorption and scattering

Question 3

xrays are

Answer 3

highly electromagnetic
very freq
short wavelght
particles
waves
protons
quanta

Question 4

freq

Answer 4

rate of waves osciliating (1 oss/s)

Question 5

x ray beam increase/ decrease

Answer 5

expotentially

Question 6

atoms consist of

Answer 6

electrons(neg)
neurons(Neu)
protons (pos)

Question 7

electrons

Answer 7

have inner shells eg k
have outer sheels L,m,n,o,p
have sub shells

Question 8

electron shells

Answer 8

electron shells are regions of space at
different distances from the nucleus
which can contain up to a certain
number of electrons of a fixed energy level

Question 9

electron orbital

Answer 9

An orbital is the volume of space where
an electron is most likely to be found

Question 10

binding energy

Answer 10

the electron binding energy is the minimum
energy that is required to remove an electron from
an atom.

Question 11

electromagnetic radiation

Answer 11

n electron can only be removed from an atom if the
applied energy is greater than its electron binding
energy.

When an inner shell electron is ejected, the vacancy
will be filled by an electron from an outer shell. The
excess energy from this shift is emitted
as electromagnetic radiation.