3-10 August 2016
Chicago IL USA
US/Central timezone
There is a live webcast for this event.

Commissioning of CMS Forward Hadron Calorimeters with Upgraded Multi-anode PMTs and uTCA Readout

Aug 8, 2016, 6:30 PM
Riverwalk A/B

Riverwalk A/B

Poster Detector: R&D and Performance Poster Session


Burak Bilki (University of Iowa (US))


The high flux of charged particle interacting with the CMS Forward Hadron (HF) Calorimeter PMT windows introduced a significant background for the trigger and offline. During Long Shutdown 1, all of the original PMTs were replaced with multi-anode, thin window photomultipliers. At the same time, the back-end readout system was upgrade to uTCA readout. The experience with commissioning and calibrating the HF front-end is described as well as the online operational challenges of the uTCA system. The HF upgrade was successful and provided quality data for the 2015 data-analysis at 13 TeV.

Primary author

Burak Bilki (University of Iowa (US))

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