Estimate the minimum possible spot size

Reference no: EM131353097

A TV tube manufacturer is attempting to improve the picture resolution, while keeping costs down, by designing an electron gun that produces an electron beam which will make the smallest possible spot on the face of the tube, using only an electron emitting cathode followed by a system of two well-spaced apertures.

(a) Show that there is an optimum diameter for the second aperture.

(b) Using reasonable TV, tube parameters, estimate the minimum possible spot size.

Reference no: EM131353097

Questions Cloud

Analyze the duty of loyalty in whistleblower cases : Analyze the duty of loyalty in whistleblower cases to determine to whom loyalty is owed and who shows greater duty of loyalty. Support your analysis with specific example. Then, suggest at least one change to an existing law.

Manipulate which of the following factors : By imposing the one-child policy, China's government is attempting to manipulate which of the following factors? Select one:

Estimated by the taxpayer in light of industry standards : During the year, X purchased land and a building for a total of $500,000 and furniture for the building for $100,000. He intends to lease the building. Each asset’s useful life as estimated by the taxpayer in light of industry standards. Salvage valu..

Humoral immune responses by releasing cytokines : Activated T-helper cells aid in humoral immune responses by releasing cytokines which promote antibody production, phagocytosis, neutralization and apoptosis. Which parts of this statement are false and why? I know cytokines activate B cells and c..

Estimate the minimum possible spot size : Using reasonable TV, tube parameters, estimate the minimum possible spot size.

Did the manager do the right thing : Shelia Rae has been with Jennifer's Art and Design for the past 6 years. Shelia Rae practices Jainism. She asks if it is okay to begin a daily morning devotion on the job. This is will be a few moments of prayer, the reading of the Sanskrit, and a..

Examples of the primary human tissues : Describe and give examples of the primary human tissues, and where in the body each can be found. Please include references.

Acquisition the expected dividend amount will increase : Glimmering Inc. is planning to acquire Lasserocks. After the acquisition the expected dividend amount will increase by $1,300,000 every year in perpetuity. At the moment Glimmering's shares trade for $160 and there are 980,000 shares outstanding. Las..

Identity in terms of these attributes of culture : For professionals who work with young children and their families, this is especially important because of the profound influence-intentional or otherwise-their attitudes and actions can have on both children and adults.

User Account

All Pages