Electron Detection: Design and Construction
Submission Type
Event
Faculty Advisor
Bruno deHarak
Expected Graduation Date
2021
Location
Center for Natural Sciences, Illinois Wesleyan University
Start Date
4-21-2018 9:00 AM
End Date
4-21-2018 10:00 AM
Disciplines
Education
Abstract
Electrons, miniscule negatively charged elementary particles, are vital in both day to day life and in countless experiments across all STEM disciplines. In our experiment, we are studying what happens to an electron when scattered off of an atom in the presence of a laser field. Being able to detect individual electrons is essential to the experiment. To accomplish this we make use of a channel-electron multiplier (CEM). The addition of wire meshes held at two different voltages allows us to limit detection to those electrons having a particular energy. The use of our CEM requires a circuit powering the CEM while also carrying the signal from detected electrons to an amplifier, allowing the data to be output and processed via computer. This circuit, involving an AC coupler and a preamp, need not be unique to our setup. In fact, it is robust and can be used for any CEM system involved in detection of low voltage signals.
Electron Detection: Design and Construction
Center for Natural Sciences, Illinois Wesleyan University
Electrons, miniscule negatively charged elementary particles, are vital in both day to day life and in countless experiments across all STEM disciplines. In our experiment, we are studying what happens to an electron when scattered off of an atom in the presence of a laser field. Being able to detect individual electrons is essential to the experiment. To accomplish this we make use of a channel-electron multiplier (CEM). The addition of wire meshes held at two different voltages allows us to limit detection to those electrons having a particular energy. The use of our CEM requires a circuit powering the CEM while also carrying the signal from detected electrons to an amplifier, allowing the data to be output and processed via computer. This circuit, involving an AC coupler and a preamp, need not be unique to our setup. In fact, it is robust and can be used for any CEM system involved in detection of low voltage signals.