A week ago I posted about the Robocold setup in this post. Now I have coded further in the control software for it and it is capable of performing automated beta scans on all the detectors. Using this, I have done a beta scan on each of the (working) detectors that are installed at the …
Further preliminary tests with the Robocold setup Read More »
In this post I will present the Robocold beta setup a.k.a. the LGAD long term test setup, LGAD stability test setup, etc. The first presentation of this setup I made it about one year ago in this link. After that, other projects appeared, also the climate chamber was failing, so I ended up delaying the …
Since we acquired our Photonis PMT I have been experimenting with it, and I noticed that the signals become noticeably smaller if I require the oscilloscope to trigger in coincidence between the LGAD and the PMT than if I trigger only on the LGAD. So I made a beta scan to see how important is …
Recently we received our new MCP-PMT of which I presented a first test in this post. Today I am posting the first serious characterization of the device. All the details can be found in this document which I embed below: As a summary, I measured a time resolution of about 22-24 ps for the MCP-PMT …
Characterization of the new MCP-PMT as a timing detector for beta particles Read More »
Today I successfully detected beta particles using an MCP-PMT which we plan to use as a timing reference. Since an MCP-PMT is, as its name suggests, a device intended to detect photons and not electrons, I want briefly to summarize here my experience. An MCP-PMT is a photon multiplying tube that differs with respect to …
In a previous post I presented a brief bibliographical research on what is supposed to happen in a silicon detector when 1) a MIP particle passes through it and 2) when an infrared laser pulse is shined onto it. Today I want to bring this to real life and see what I get. I am …
In the lab I am currently characterizing silicon detectors using two types of sources to excite them: 1) a radioactive Sr-90 source and 2) a pulsed laser in a TCT setup. I want to do a theoretical comparison between these two ways of testing the detectors to improve my understanding of what happens in each …
The other day I decided to start working on the MIP calibration of the TCT and so I installed one of the PIN diodes we have. To do the MIP calibration basically we have to compare the collected charge when the device is excited by a MIP particle, e.g. a beta electron, and the collected …
Strange bipolar current pulses in PIN diode with beta source Read More »
NOTE: This post was originally published in this link. Matías Senger(matias.senger@cern.ch)On behalf of the UZH group: Anna Macchiolo, Riccardo del Burgo, Daniel Hernandez, Yuta Takahashi, Prof. Ben Kilminster 37th RD50 WorkshopNovember 20, 2020 UZH beta timing setup The UZH beta timing setup has the following block diagram: Hardware elements of the setup Bias voltage: CAEN …
