Comments (15)
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
Spencer,
I replaced the three resistors (R3, 5, and 20) in the Amplifier portion of the circuit. I’m still hovering around .430 Hz.
Any final suggestions before I move on? Replace the main op-amp component? I’d really like to have two detectors in the end running together.
I am very confident I used the right tinfoil and tape, and I have triple-checked every solder joint, so I am assuming that I have a “weak” component.
Jim
from cosmicwatch-desktop-muon-detector-v2.
PS, I don’t know enough about electrical circuits to figure out on my own which would be the most likely to suppress the amplification. As I mentioned earlier, when I use the BNC the LED is flashing for every wave and even when there is no Wayne, so I am chalking that up to poor scope skills, and focusing on the low amplification.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
Spencer,
I built a new detector. The bad news, no counts; the good news, when I put the new SiPM on the first Main PCB I got .917 Hz counts. That smells like success to me.
So the issue was a defective/weak SiPM as you suspected. While I can’t figure out what I did differently, I did wrap the new scintillator in two layers of kitchen tinfoil instead of two, with the shiny side inwards on both. The second scintillator did warp a bit, but also might have been slightly more clear than the first.
I’m going to take a break from CW and work on Radio Jove before troubleshooting the second Main PCB and first SiPM. I am going to taken the working one on several plane flights in the next few weeks.
Best regards,
Jim Gallatin
from cosmicwatch-desktop-muon-detector-v2.
from cosmicwatch-desktop-muon-detector-v2.
Related Issues (20)
- 2 Different kind of PCB HOT 7
- LT1807 Replacement HOT 3
- Different SiPMs HOT 1
- Arduino sketch not working !! please help HOT 5
- TP3 always high HOT 1
- Trouble to set detectors to Coincidence mode HOT 1
- problem uploading the code onto audrino nano for V2. HOT 3
- Cannot run detector_server.py or import_data_py3.py HOT 5
- Troubleshooting HOT 2
- Arduino Port not found HOT 2
- Troubleshooting again HOT 3
- Seperate Detection Rates HOT 1
- UKRAA CosmicWatch Detector
- Coincidence confusion HOT 3
- Discontinued part for V2 build HOT 1
- I have an issue taking data from two detectors HOT 2
- Concerns with linked parts not matching description in purchasing list HOT 1
- Clarification on comic-watch components
- Importing Data errors HOT 4
- I accidentally ordered V1's PCB and parts. HOT 7
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