QTYUIOP Copyright 1995 General Atomics

FREQ

UEN

CYin

HERT

Z(C

YCLES

perSECOND) FREQUENCY in HERTZ

(CYCLEper SECO

ND

)

WA

VE L E N G T H I N

ME T E

RS

one light-second

earth's diameter

football field

pinhead red

bloo

dcor

pusc

le

polio

viru

s

atom

proton

1 M

ICRO

MET

ER

1 NAN

OMETER

1 ANGSTROM (Å

)

1 PICOMETER

1 FEMTOMETER

1 MEGAMETER

1 KILOMETER

1 METER

1 MILLIM

ETER

108

107

106

105

104

103

102

10

110-

1 10-2 10-3 10-4 10-510 -6

10 -7

10 -8

10 -910 -10

10 -1110 -12

10 -1310 -14

10-15

10-16

Magnetrons, Klystrons,

Harmonic Incandescent & Fluorescent

X-Ray Tubes, RadioactiveRo

tatin

gGe

nera

tors

Electr

onic

Tube

s and

Semi

cond

uctor

Devic

es

Parametric

and MolecularGenerators Lamps, Sparks, Arcs, Gas

Isotopes, High Voltage

X-Ray Tubes

Linear Accelerators,Betatrons

Electron & Ion Types

Synchrotrons,Cyclotrons

Oscillators

& Masers Discharge Tubes & Lasers

DC Generators

Audi

oFr

eque

ncies

Far Infrared

Vacuum Ultraviolet

Soft X-Rays

Hard X-RaysSoft Gamma Rays

HardGamma

Rays

Low

Medium

High

V.H.F.Very

HighU.H.F. Ultra

HighCentimeter

MillimeterSub- Intermediate

SecondaryCosm

icRays

Freq

uenc

iesFre

quen

cies

Frequ

encies

Freque

ncies

Frequen

ciesWaves

Waves MillimeterInfrared

(Gamm

aRays produced

byCosm

icRays)

HERT

ZKI

LOHE

RTZ

MEGAH

ERTZ

GIGAHERTZFREQUENCY in WAVE NOS (cm-1) PHOTON ENERGY in ELECTRON VOLTS (ev)

THOUSANDS of ELECTRONVOLTS (Kev)

MILLIONS

of ELECTRONVOLTS

(Mev)

109

1010

1011 1012 101310 14

10 15

10 16

10 17

10 18

10 19

10 2010 21

10 2210

2310

24

1010

210

310

4

105

106

107

108

VisibleLight

VisibleLight

LI

GHT

LI

GHT

TH EE L E C T R O M A G N ET I C SP ECTRUM

X-RAY

MICROWAVES

RADIO WAVES

INFRARED

ULTRA VIOLET

VISIBLE LIGHT

Applications/Careers– Radar/Air Traffic Controller– Communications/Engineers– Cooking/Domestic Worker

Applications/Careers– Communications/

Radio Personality, Engineer– Aircraft Guidance/Pilot– MRI/Medical Technician

Applications/Careers– Medical Imaging/Technician– Astrophysics/Physicist– Crystallography/Scientist

Applications/Careers– Sun Tanning/Lifeguard– Sterilization/Medical Technician– Protein Sequencing/Biologist

Applications/Careers– Vision/Optometrist– Spectroscopy/Scientist– Astronomy/Astronomer

Applications/Careers– Remote Control/Couch Potato– Laser/Precision metal worker– Heat imaging/Search & Rescue

THE E L E C T R O M A G N ET I C SP ECTRUM