## How to Calculate and Solve for Resolution X-rays | X-Ray Crystallography

The image above represents resolution x-rays.

To compute for resolution x-rays, two essential parameters are needed and these parameters are Average Height of Voltage Pulse (V) and Spread of Voltage Pulse (δv).

The formula for calculating resolution x-rays:

R% = 100 (√(δv)/V)

Where:

R% = Resolution X-rays
V = Average Height of Voltage Pulse
δv = Spread of Voltage Pulse

Let’s solve an example;
Find the resolution x-rays when the average height of voltage pulse is 21 and the spread of voltage pulse is 10.

This implies that;

V = Average Height of Voltage Pulse = 21
δv = Spread of Voltage Pulse = 10

R% = 100 (√(δv)/V)
R% = 100 (√(10)/21)
R% = 100 (3.162/21)
R% = 100 (0.15)
R% = 15.05

Therefore, the resolution x-rays is 15.05%.

Calculating the Average Height of Voltage Pulse when the Resolution X-rays and the Spread of Voltage Pulse is Given.

V = 100 x √(δv) / R%

Where;

V = Average Height of Voltage Pulse
R% = Resolution X-rays
δv = Spread of Voltage Pulse

Let’s solve an example;
Find the average height of voltage pulse when the resolution x-rays is 40 and the spread of voltage pulse is 4.

This implies that;

R% = Resolution X-rays = 40
δv = Spread of Voltage Pulse = 4

V = 100 x √(δv) / R%
V = 100 x √(4) / 40
V = 100 x 2 / 40
V = 200 / 40
V = 5

Therefore, the average height of voltage pulse is 5.

## How to Calculate and Solve for Electron Kinetic Energy | X-Ray Crystallography

The image above represents electron kinetic energy.

To compute for electron kinetic energy, two essential parameters are needed and these parameters are Mass (m) and Velocity (v).

The formula for calculating electron kinetic energy:

eV = mv²/2

Where:

eV = Electron Kinetic Energy
m = Mass
v = Velocity

Let’s solve an example;
Find the electron kinetic energy when the mass is 12 and velocity is 24.

This implies that;

m = Mass = 12
v = Velocity = 24

eV = mv²/2
eV = (12)(24)²/2
eV = (12)(576)/2
eV = (6912)/2
eV = 3456

Therefore, the electron kinetic energy is 3456 J.

Calculating the Mass when the Electron Kinetic Energy and the Velocity is Given.

m = eV x 2 / v2

Where;

m = Mass
eV = Electron Kinetic Energy
v = Velocity

Let’s solve an example;
Find the mass when the electron kinetic energy is 12 and the velocity is 4.

This implies that;

eV = Electron Kinetic Energy = 12
v = Velocity = 4

m = eV x 2 / v2
m = 12 x 2 / 42
m = 24 / 16
m = 1.5

Therefore, the mass is 1.5.