A vacuum provides the needed insulation to prevent "arching" or jumping of high voltages in the electron gun. The gun itself is under extremely high vacuum conditions, requiring a pressure as low as ...

To accomplish this, the physicists behind the new study tweaked an electron gun until it produced a pulse of just one attosecond. These pulses hit the "sample" being studied, and as the electrons ...

Delta-gun shadow mask operation. By User:Tirante (Own work) [CC BY-SA 3.0], via Wikimedia Commons A shadow mask colour CRT has three electron guns, one for red, one for green, and one for blue.

Ion beam (IB) guns and electron beam (EB) guns are devices that emit charged particles (ions and electrons, respectively) directed in a beam which are used in surface analysis or preparation, particle ...

A pneumatic valve seals the gun chamber in the event of an accidental vacuum vent. This prevents dust and debris from reaching the tip. Electron source. The field emission source for the S-4700 is a ...

This dual-sector mass spectrometer has both CI (chemical ionization) and FAB (fast atom bombardment) capabilities in addition to the conventional EI (electron impact) source. A Varian Century Series E ...

Ethan Varian is a Bay Area News Group reporter covering housing for The Mercury News and East Bay Times. He was previously a housing and homelessness reporter at the Santa Rosa Press Democrat in ...

Whether you frequent a local pool or are planning a trip to the beach, water guns are a great addition to your outdoor activities and promise endless fun. Plus, they aren't just for kids.

An important invention from brothers Russel and Sigurd Varian affected radar research ... United Electronics, and Electron Technologies Inc where he was still making strides in research in high ...

Our experts tested several massage guns and here are our top picks that will help you relax while managing your muscle pain. I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the ...

Gun deaths remain a major problem in the country. The 2024 presidential candidates have spoken about their policy ideas related to gun violence and gun regulations, as gun deaths remain a major ...

Firearms were the leading cause of death for children and teenagers in the United States for the third consecutive year, and homicides accounted for the majority of gun deaths among the age group ...