Electron Gun: Difference between revisions
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===Electrical Components=== | ===Electrical Components=== | ||
1) High Voltage Power Supply Unit (PSU)<br /> | 1) High Voltage Power Supply Unit (PSU) (up to 5kV)<br /> | ||
2) Current Controlled PSU | 2) Current Controlled PSU | ||
Revision as of 14:01, 29 January 2022
Creating an SEM was proven to be too difficult. The electron gun with a magnetic lens is a simplification of the project.
Idea
There are two parts to this project. The first would be to create the electron source which seems to be done with the use of a Lenard/Crookes tube [1]. Secondly, we would want to focus this electron beam into a spot with the use of a homemade magnetic lens (probably a solenoid of some form). We could perhaps perform a measurement of the focal length with respect to the magnetic field strength of the lens.
Team Members
Irvin Lim
Aliki Sofia Rotelli
Tan Chuan Jie
Lai Tian Hao
Equipments & Components
High Vacuum (HV) Components
1) Roughing Pump
2) Turbo Pump
3) KF-25 Stainless Steel vacuum bellow (1 meter)
4) CF-40 Stainless Steel Tee
5) CF-40 Stainless Steel Cross
6) CF-40 Stainless Steel Viewport
7) CF-40 Stainless Steel High-voltage Dual Port Feedthroughs (x2)
8) CF-40 Stainless Steel Multi-Pin Feedthrough, Double-Ended
9) CF-40 to KF-25 Stainless Steel Flange Adapter
Electrical Components
1) High Voltage Power Supply Unit (PSU) (up to 5kV)
2) Current Controlled PSU
Measurement Components
1) RBD's 9103 USB Picoammeter, (Alternative: Multimeter)
2) High Vacuum Digital Gauge
3) Thermocouple