The Finished Detector. I'll take you through the build below. This article will make it easier to understand the process: https://en.wikipedia.org/wiki/Wire_chamber
This is the "sense board". All of the sense wires of the MWPC are summed together and then amplified by a trans-impedance OP-AMP. The signal is read by an oscilloscope via a coaxial cable. I took a circuit diagram from my advising professor and performed all of the steps to make this PCB, from layout in Autodesk Eagle to soldering the SMDs on the board.
Wire stringing is a tricky matter, the gold plated tungsten wires are thinner than a human hair. To install them, a length of wire is cut and attached to clamps. The wire and clamps are then draped across the detector over the center of the pads, with the weight of the dangling clamps tensioning the wires. I then carefully soldered the wire to the pad and cut the excess wire.
This is the high voltage distribution board, which charges the sense wires to 1950 Volts!
A comparison of my first attempt and the second version of the sense board, learned a lot between the two.
These are the back of the napkin specifications that I built the detector to.
The O-ring must be super glued together, a tricky process
The gas port screwed right into the hole once I removed the 3D support material out of the hole.
The frame with O-ring groove glued to the aluminium sheet.
The completed sense frame with a thin layer of epoxy paint to help the O- ring make a tight seal.
Aluminium foil was the answer to hours of troubleshooting over electronic noise.
Another view of the finished detector.
1950 Volts. Don't touch!
This event interacted with multiple wires, as can be seen by the many peaks.
A really clean muon detection.
