AC-LGADs (also called RSD) have the particularity that the shape and distribution of the readout pads on the surface of the detector can be arbitrary. Up to now I have been only playing in the lab with AC-LGADs that have square pads arranged in a square matrix, see for example this post. I have been …
Interconnecting together multiple pads in an AC-LGAD Read More »
View document in a new tab.
Finally I tested the spacial resolution of a 200 µm pitch AC-LGAD. Below I left the two reports I made, one focusing in the difference between shining the laser outside the pad vs “inside” the pad, and the other one focusing on the whole surface of the detector. You can see each document in a …
After a lot of assembling, programming, measuring, analyzing and calibrating, today I finally arrived to my very first results of spacial and temporal resolution in an AC-LGAD. Though it was a lot of work until I reached here, the methods still have to be improved. The results I obtained, however, are pretty good. In this …
After my first timing measurement with the TCT, presented in this post, I started to play a little bit with timing in an AC-LGAD installed in the TCT. Playing around with different settings in the oscilloscope I noted that the temporal resolution seems to improve if, instead of using the rising edge, the falling edge …
During the last days I was working on the application of the maximum “empirical likelihood” estimator for the hit position of a particle in an AC-LGAD. To get an introduction to this method, please have a look at this previous post. Today I am going to write about how I am applying this method to …
