I developed a 16 channel readout board for LGADs, with the help of the electronics workshop from UZH. This board opens the possibility to measure 4×4 pixelated structures. It is, in essence, a replication of the Chubut 2 board, which has 4 channels, so the performance is very similar. More information about this board can …
This is the continuation of my previous post where I showed the main results on the inter-pixel distance measurement in TI-LGADs. In this post I will summarize my results for the same devices but after they have been irradiated. This was presented in the VCI2022 conference, here you can find the slides which I also …
Recently I have been working on the measurement of the inter-pixel distance of novel Trench Isolated LGAD (TI-LGAD) detectors. I presented my results in the 39th RD50 Workshop in Valencia. In this link you can find my slides, which I also embed here: This post is to provide a (very) brief summary of my work. …
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 »
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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 …
We are using our Particulars scanning TCT to characterize the spacial resolution of different devices. But, what is the spacial resolution of the TCT itself? What is the size and shape of the beam spot in the surface of the silicon? Spacial scan with the spaghetti diode Though there is not much documentation on the …
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 …
