Mohsen Afsharmanesh

5 Questions 30 Answers 0 Followers

Questions related from Mohsen Afsharmanesh

How much is the usual plasma-based ion source beam diameter for different applications?

Ion sources come in various diameters (FWHM) for different applications. How much is the usual plasma- based ion source beam diameter for different applications (like neutron generators,...

17 August 2018 3,902 13 View

What are the methods for measuring diameter of focused ion beam (FIB)?

Focused ion beam (FIB) devices can generate beams with a diameter (FWHM) of less than 10 nm. What are the methods for measuring diameter of Focused ion beam (FIB)? Thanks Mohsen

07 July 2018 8,403 4 View

Which pieces of software are convenient for modeling vacuum pressure in chambers?

I am currently looking for a software to model vacuum pressure in chambers, considering outgassing of various materials, permeation through O-rings, gas flows into the chamber, pumping speeds etc....

27 June 2018 5,228 3 View

Which space charge compensation method are you using?

Dear colleagues, As you know there are some ways to compensate the space charge in positive ion beams. As far as i know depending on the beam current, energy, and pulse duration the following...

26 June 2018 9,414 3 View

How can i eliminate RF modulation in the RF ion source?

I am working on Helicon ion source. I have some questions about RF modulation in this ion source. I would like to know how RF modulation will affect the ion beam parameters? How can i detect this...

13 June 2018 1,823 6 View