3. a) Consider low-pressure hydrogen plasma contained in a grounded torus vacuum vessel by a toroidal...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
3. a) Consider low-pressure hydrogen plasma contained in a grounded torus vacuum vessel by a toroidal magnetic field. A cross-section of the vessel is shown in Fig. Q3. At the centre of the plasma, the electron density (ne) is 5 1020 m. The magnetic field strength B is 1 Tesla. i) ii) iii) iv) v) vi) A ii) H plasma Fig. Q3 O O B X B-field direction X X Vessel wall What is the positive ion density (ni) at the centre of the plasma? What principle have you used reach your answer? Complete the balanced reaction equations for the following interaction between electrons and H molecules in the plasma that lead to the: Dissociation of H, e+ H ? Direct ionisation of H2, e+ H ? Dissociative ionisation of H e+ H ? Name region X at the boundary of the plasma and say what important plasma parameter characterises the width d of region X. In your answer book draw a sketch of the electric potential profile that exists along the line A-B shown in fig. Q3. In your answer book draw a sketch of the profiles of electron ne and ion density n; that exists along the line A-B shown in fig.Q3 Calculate the electron gyro-frequency oo in the plasmas b) Physical sputtering is a very important plasma-surface interaction process. Briefly describe what sputtering is. A metal surface of area 0.01 m is bombarded by argon ion flux of 3. a) Consider low-pressure hydrogen plasma contained in a grounded torus vacuum vessel by a toroidal magnetic field. A cross-section of the vessel is shown in Fig. Q3. At the centre of the plasma, the electron density (ne) is 5 1020 m. The magnetic field strength B is 1 Tesla. i) ii) iii) iv) v) vi) A ii) H plasma Fig. Q3 O O B X B-field direction X X Vessel wall What is the positive ion density (ni) at the centre of the plasma? What principle have you used reach your answer? Complete the balanced reaction equations for the following interaction between electrons and H molecules in the plasma that lead to the: Dissociation of H, e+ H ? Direct ionisation of H2, e+ H ? Dissociative ionisation of H e+ H ? Name region X at the boundary of the plasma and say what important plasma parameter characterises the width d of region X. In your answer book draw a sketch of the electric potential profile that exists along the line A-B shown in fig. Q3. In your answer book draw a sketch of the profiles of electron ne and ion density n; that exists along the line A-B shown in fig.Q3 Calculate the electron gyro-frequency oo in the plasmas b) Physical sputtering is a very important plasma-surface interaction process. Briefly describe what sputtering is. A metal surface of area 0.01 m is bombarded by argon ion flux of
Expert Answer:
Related Book For
Posted Date:
Students also viewed these physics questions
-
Why do you believe the 'Battle of the Forms' is a recurring problem in business?
-
Two medical supply companies in San Francisco provided oxygen to patients at home. The companies were owned by the doctors who prescribed the oxygen. These doctors made up 60 percent of the lung...
-
List the key principles of the six Sigma philosophy. How does it differ from TQM?
-
The ABC is considering a $100,000 investment in either of two companies. The cash flows are as follows: a. Using the payback method, what will the decision be? b. Explain why the answer in part a can...
-
If the time value of money is so important, why isnt the timing of cash flows emphasized in the accounting cycle?
-
Sketch the expectation function for the logistic growth model (12.34) for \(\theta_{1}=1, \theta_{3}=1\), and values of \(\theta_{2}=1,4,8\), respectively. Overlay these plots on the same \(x-y\)...
-
Automotive Products (AP) designs, manufactures, and sells automotive parts. Actual variable manufacturing overhead costs for 2012 were $308,600. AP's simple costing system allocates variable...
-
On September 1 , 2 0 2 7 , Betty DeRose, Inc. received $ 5 4 , 0 0 0 cash from a customer as payment for services that will be performed over the next 3 0 months. On May 3 1 , 2 0 2 8 , Betty DeRose,...
-
You are given the following information about the mid-size truck market in the USA, specifically the fictitious Mullins Trucking Corporation, Inc. in Rochester, NY. The graph you are about to...
-
Sommar Company anticipates it will have $200,000 available to pay dividends on June 30, 2022. The State of Kansas has authorized the company to issue 50,000 shares of 10%, $100 par cumulative...
-
Briefly summarize the facts, issues, and decision. Sears Oil Co., Inc., 359 F2d 191 (2nd Cir. 1966)
-
In State Y, the property tax is assessed based on the property's appraised value. If the appraised value of a house is $500,000 and the property tax rate is 1.5%, calculate the annual property tax?
-
Bella : She hates market risk. She saw her parents lose a bunch of money in 2008 and then again in 2020. She wants to be safe and smart so, she puts all her savings in her safe at home. She believes...
-
Define appropriate communication mechanisms for various stakeholder groups and discuss any interaction components.
-
FIND TWO EXAMPLES OF MAGERY SAD BY STANLEY THAT REVEALS THE NATURE OF HIS RELATIONSHIP WITH STELLA.
-
Angelo, 2017, p 4 defines service as work done for others. But this definition falls far short of the real meaning of the word. Factors that impact on service, include the quality of the product, the...
-
Activator rod AB exerts on crank BCD a force P directed along line AB. Knowing that P must have a 100-N component perpendicular to arm BC of the crank, determine (a) The magnitude of the force P, (b)...
-
Derive the ground-state term symbols for the following configurations: a. d 2 b. f 9 c. f 12
-
The 13 C nucleus is a spin 1/2 particle as is a proton. However, the energy splitting for a given field strength is roughly 1/4 of that for a proton. Using a 1.45-T magnet as in Example Problem 30.6,...
-
How are the spherical harmonics combined to form real p and d functions? What is the advantage in doing so?
-
How the duration of a sprint can be decided?
-
Why estimating software development effort is so difficult? What are the obstacles?
-
Why is the stateless pattern preferable to stateful?
Study smarter with the SolutionInn App