Facebook
Google
GitHub
Linkedin
Hi I am Miranda and I am a sophomore in college. This past year I have been completing a class to do research in Alaska and I may have taken on more than I first thought. I am wanting to build a cosmic ray detector using a photomultiplier tube, scintillator and Arduino, that is portable. While the trip has passed, I am still wanting to complete this project but the problem is that I do not have much experience in electronics. My professor is currently working on the pmt powering piece of the project but I wanted to see if anyone had done this before, knew anything about pmts, or could be of help in any way.
1. Powering the PMT
- the photomultiplier tube needs about 900-1000volt with a low current. The circuit we are trying to build using a 555 timer and a transformer to amplify about 9V along with a series of capacitors and resistors to get the voltage up to where it needs to be. I believe my professor has a circuit planned out and is going to build it soon. The pmt I am using is a RCA 931- A: https://frank.pocnet.net/sheets/049/9/931A.pdf. I also have some
2. The next piece of the problem is wiring the pmt to the high voltage circuit with a voltage divider using 1Mohm resistors on the pegs of the pmt. like in this article: https://www.dynode.nl/pmts-and-scintillation-probes/.
3. We are wanting to possibly use a transimpedance amplifier circuit to convert current to voltage to data recording. https://www.ti.com/lit/an/sboa268b/sboa268b.pdf?ts=1770258290831
4. We are trying to use a arduino uno microcontroller to record data and run code for the pmt.
I need help trying to put all these pieces together for the entire circuit and help understanding how these pieces work and behave. If anyone know anything, has done this before; any help will be much appreciated. I can give any more information you may need to help out, also. I am only a sophomore in college and have very little experience outside of class. I ma wanting to get this done soon so thatI can take data and then present on it at a conference in December. I keep looking for article online, and while I have found some good ones- it's just not enough. Thanks so much!
1. Powering the PMT
- the photomultiplier tube needs about 900-1000volt with a low current. The circuit we are trying to build using a 555 timer and a transformer to amplify about 9V along with a series of capacitors and resistors to get the voltage up to where it needs to be. I believe my professor has a circuit planned out and is going to build it soon. The pmt I am using is a RCA 931- A: https://frank.pocnet.net/sheets/049/9/931A.pdf. I also have some
2. The next piece of the problem is wiring the pmt to the high voltage circuit with a voltage divider using 1Mohm resistors on the pegs of the pmt. like in this article: https://www.dynode.nl/pmts-and-scintillation-probes/.
3. We are wanting to possibly use a transimpedance amplifier circuit to convert current to voltage to data recording. https://www.ti.com/lit/an/sboa268b/sboa268b.pdf?ts=1770258290831
4. We are trying to use a arduino uno microcontroller to record data and run code for the pmt.
I need help trying to put all these pieces together for the entire circuit and help understanding how these pieces work and behave. If anyone know anything, has done this before; any help will be much appreciated. I can give any more information you may need to help out, also. I am only a sophomore in college and have very little experience outside of class. I ma wanting to get this done soon so thatI can take data and then present on it at a conference in December. I keep looking for article online, and while I have found some good ones- it's just not enough. Thanks so much!
