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The High-Luminosity phase of the Large Hadron Collider at CERN (HL-LHC) poses stringent requirements on calorimeter performance in terms of resolution, pileup resilience and radiation hardness. A tungsten-CeF3 sampling calorimeter is a possible option for the upgrade of current detectors. A prototype, read out with different types of wavelength-shifting fibers, has been built and exposed to high energy...
IMCP is an R&D project aimed at the exploitation of secondary emission of electrons from the surface of microchannel plates (MCP) for fast timing of showers in high rate environments. The usage of MCPs in “ionisation” mode has long been proposed and is used extensively in ion time-of-flight mass spectrometers. What has not been investigated in depth is their use to detect the ionizing component...
PJ-SQL-Browser is a free Python-Javascript web based tool. It relies on jQuery and python libraries, and is intended to provide the CMS software framework a real-time handle to the DB backend inside a local web browser. Nowadays, the number of DBs accessing built on Java or .Net is steadingly increasing. However, many of these application have several drawbacks: usually they are not open-source, they...
In real time systems, such as CMS Online Condition Database, monitoring and fast detecting errors is a very challenging task. To recover the system and to put it in a safe state requires spotting a faulty situation with strict timing constraints and a fast reaction. In the context of real time monitoring, this implies that the interval of time from when a faulty event occurs to when it is noticed...
The Level-1 Trigger plays a major role in the CMS experiment allowing the reduction of the raw event rate at the Large Hadron Collider. Its decision is based on information from the electromagnetic and hadronic calorimeters as well as the muon detectors. The electronics of the electromagnetic calorimeter generate and deliver basic quantities called “Trigger Primitives” which correspond to local energy...
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