Discovery
Units of Measurement
Frequency and Wavelength
Properties of X-rays
100

When was x-ray discovered? 

November 8, 1895

100

What is the conventional unit of measurement for exposure? 

roentgen 

100

X-rays are measured in: 

Frequency and wavelength 

100

How fast do x-rays travel? 

At the speed of light 

200

Who discovered x-rays? 

Wilhelm Conrad Roentgen

200

What is the SI unit of measurement of radioactivity? 

Becquerel 

200

Frequency is measured in: 

Hertz

200

X-rays can produce ____ radiation 

Secondary 

300

What type of tube was used during the discovery? 

Crookes Tube

300

How is dose equivalent measured in rad workers? 

With an OSL

300

Wavelength is measured in: 

Angstroms 

300

X-rays can be ____ or _____ by tissues in the body 

Scattered or absorbed 

400

What substance fluoresced?  

Barium Platinocyanide 

400

What is the relationship between the roentgen and C/kg? 

They are the units of measurement for exposure 

400

What is the speed of light in miles per second? 

186,000 miles/s

400

What is the mass of x-rays? 

No Mass 

500

What year did they find out that x-rays are harmful? 

1898

500

1 rad = ? 

0.01 Gy 

500

Wavelength and frequency have what type of relationship? 

Inverse 

500

What type of beam do x-rays form? 

Polyenergetic or heterogeneous 

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