VOLUME
2 4, N O . 4, A P R I L 1 9 5 2
21 A RCA Scientific Instruments for Industry
Micro-sncond T i m * r
Vacuum System
Vacuum Gage Edwin
B. B r a d f o r d
of D O W
placing a specimen in the RCA Electron Microscope. The Dow Chemical Company uses three of these powerful instruments.
Q
HOW LIME BREAKS DOWN Fresh lime (Magnified 7,000 x)
Inactive lime, broken down from use (Magnified 8,000 x) Count-Rate M e t e r
How the RCA
electron microscope
helps
DOW CHEMICAL
N e w Low-Cost Electron Microscope
with processing problems TAKE THE TROUBLE with lime, for example —an important ingredient used i n o n e o f DOW's processing operations. All signs pointed t o the possibility that t h e activity of lime d r o p p e d off with use. Yet careful chemical tests failed t o s h o w that any significant change t o o k place. T h e n t h e R C A Electron M i c r o s c o p e gave the answer! Electron m i c r o g r a p h s of lime—magnified m o r e than 2 4 , 0 0 0 times—clearly revealed that lime particles did break down extensively into finely divided, gelatinous masses. And when the ac tion was completed, all chemical activity ceased! Just o n e example of h o w t h e RCA Electron Microscope is h e l p i n g DOW research solve
SCIENTIFIC
many p r o b l e m s in chemistry, metallurgy, physics, a n d biology. Consider t h e possibilities of the RCA Elec tron Microscope in your o w n research a n d production p r o g r a m . T h i s powerful instru ment can p r o d u c e sharp images at direct mag nification from 500 t o 2 3 , 0 0 0 diameters— with p h o t o g r a p h i c enlargements t o 100,000 diameters. Resolving p o w e r is 20 t o 100 times greater than t h e best light microscope. Depth of field is 75 t o 150 times greater than t h e best light microscope. For m o r e information about t h e RCA Elec t r o n Microscope, simply write Dept. 11-D, RCA Engineering Products, Camden, N e w Jersey. N o o b l i g a t i o n , of course.
«7-:..W
Electron D i f f r a c t i o n Unit
Β» V a c u u m Leak Detector
INSTRUMENTS
RADIO CORPORATION of AMERICA ENGINEERING
PRODUCTS
DEPARTMENT.
In Canada: R C A VICTOR Company Limited, Montreal
CAMDEN.
N.J.
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