rad imaging ch 1

Who discovered xray

Dr roentgen

When was roentgen born

March 27 1845

Where was roentgen born

lennep, Germany

Roentgen got his PHD from where in 1869

University of Zurich

Where was roentgen the director of physics institute

University of wurzburg

When did roentgen discover x ray

November 8 1895

Nov 8 1895 roentgen prepared for a experimental using a ____ (_____) covered in _____

Cathode ray tube (partial vacccum with electron stream), black cardboard

What fluoresced each time the the tube was energized?

Barium platinocyanide-painted cardboard

Who discovered nearly ever known property of x ray

Roentgen

When and who was the first X-ray taken (of)

December 22 1895, roentgens wife (her hand with her ring in it)

Roentgen published ____

Three communications (informal papers) on x light

_____ _____ exposed to to x rays create images

Photographic plates

What was early x ray used by

Physicians

Early use of radiation could cause ___ ___ and ___ ____

Radiation burns and operator electrocutions

Who brought attention to the dangers of x rays

Thomas Edison

Who was Clarence dally and what did he do

Thomas Edison’s assistant, continued the experiments of x rays

How did Clarence dally die

Because of his continued experiments he had sever radiation burns and eventually died to those injuries

What was the early treatment for early radiation burns

Amputation

What become identifying traits of the x ray profession

Gloves hands and amputated limbs

What decade did the improvement of imaging plates, equipment, and techniques

1900, nearly all acute radiodermatitis was eliminated

X ray captured the public’s attentions creating unusual creations like the ____

The use of fluoroscope for fitting shoes (find the perfect fit)

Fundamental quantities:

Mass, length, and time

Derived quantities

Velocity, acceleration, force, power, momentum, work

Radiologic quantities

Dose, dose equivalent, exposure, and radioactivity

Mass in British system

Pound

Length in British system

Foot

Time in British system

Second

Mass in metric/system international (SI)

Kilogram

Length in metric/SI

Meter

Time in metric/ SI

Second

Mass-

Quantity of matter contained in an object

Matter-

Anything that mass and occupies space

Velocity-

Measure of speed

Acceleration-

changes in velocity

Force-

Push, pull or other action that changes the motion in an object

Momentum-

Equal to mass of object X’s velocity

Work-

Force applied to an object X’s by the distance across which it is applied

Power-

Equal to work divided by time during which work is done

Velocity unit of measure

M/s

Acceleration unit of measure

m/s2

Force unit of measure

N (newton)

Momentum unit of measure

kg-.m/s

Work unit of measure

J (joules)

Power unit of measure

W (watt)

Inertia-

Property of an object with mass that resists a change in its state of motion

Newton’s first law of motion

An object at rest will stay at rest unless acted on by an external force

An object in motion will stay in motion will remain in motion at the same velocity and in the same direction unless acted on by an external force

Energy is the

Ability to do work

The two states of energy

Potential energy and kinetic energy

Kinetic energy-

Energy being expended

Potential energy

Energy in a stored state

What are the four forms of energy

Electromagnetic, electrical, chemical, and thermal

Who created the famous E=mc2

Albert Einstein

E=mc2-

Energy=mass x constant (speed of light) 2

Matter can be transformed into energy and

Energy can be converted into matter (vice versa)

The roentgen is used to __ ___ ___

Quantify radiation intensity (output intensity of x ray equipment or in the air)

The roentgen is equal to that quantity of radiation that will produce ____ ___ ___ ___ ____

2.08 109 ion pairs in a cubic centimeter of air

The ___ ____ is a measure of the number of the number of electrons liberated by ionization per kg of air

Coulomb/kilogram

The rad (___ ___ ___) is used to ___________________

Radiation absorbed does, quantify the biologic effects of radiation on humans and animals

Rad gives measure to the amount of energy deposited by _______________

Ionizing