Construction and performance of a silicon photomultiplier/extruded scintillator tail-catcher and muon-tracker (original) (raw)

Muon Tracker with Unsegmented Plastic Scintillator Panels

2021

A muon tracker was developed using three polyvinyl toluene scintillator panels instrumented with photomultiplier tubes (PMTs) mounted at the corners. Panels are mounted in parallel on an aluminum frame which allows for simple adjustment of angle, orientation and separation distance between the panels. The responses of all PMTs in the system are digitized simultaneously at sub-nanosecond sample spacing. Software was developed to adjust settings and implement event rejection based on the number of panels that detected a scintillation event within a 400-nanosecond record. The relative responses of the PMTs are used to calculate the position of scintillation events within each panel. The direction of the muons through the system can be tracked using the panel strike order. Methods for triangulation by both time-of-flight (TOF) and PMT magnitude response are reported. The time triangulation method is derived and experimentally demonstrated using parallel cables of differing length. The ...

A high-granularity scintillator calorimeter readout with silicon photomultipliers

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005

We report upon the design, construction and performance of a prototype for a high-granularity tile hadronic calorimeter for a future international linear collider (ILC) detector. Scintillating tiles are read out via wavelength-shifting fibers that guide the scintillation light to a novel photodetector, the Silicon Photomultiplier. A prototype has been tested using a positron test beam at DESY. The results are compared with a reference prototype calorimeter equipped with multichannel vacuum photomultipliers. Detector calibration, noise, linearity and stability are discussed, and the energy response in a 1-6 GeV positron beam is compared with simulations.

The Next Generation Scintillator-based Electromagnetic Calorimeter Prototype and Beam Test

Physics Procedia, 2012

We are studying next generation scintillation detectors for future collider experiments. For precise energy measurement of energetic jets in future experiments, particle flow algorithm with fine granular scintillator strip calorimeter will play an important role. To establish the technology of the calorimeter, we are studying the properties of small plastic scintillator strips with size of (10-5) x 50 x 3 mm, which is a fundamental component of the calorimeter. As a part of this R&D study, small extruded plastic Scintillator of size 10 x 45 x 3 mm and a tungsten plate with 3.5 mm thick are sampled together to Fabricate a Scintillator base electromagnetic calorimeter prototype. Prototype has a stack of 30 layers, having dimension of 20 x 20 cm. Fine Scintillator strips in successive layers aligned in orthogonal to achieve effective 1 x 1 cm segmentation. The total number of channels is 2160 for readout. scintillation light produced in plastic Scintillator strips enters the wavelength shifting (WLS) fiber placed inside the plastic Scintillator are guided to the sensitive photo detector 1600 pixel MPPC (Multi Pixel Photon Counter) with a sensitive region of 1 x 1 mm 2. The electromagnetic calorimeter performance has been studied with test beam during summer 2008 and 2009 at Fermilab. We have injected 1-30 GeV electron and 60 GeV Pion beams and measured energy resolution and linearity of response toward input energy. In this presentation we will present obtained performance of the calorimeter prototype.

Hawaii Muon Beamline Scintillating Tracker Plane DataAcquisition System

Horizons, 2019

is developing a particle detection system for groundbreaking physics research. They are involved in several international initiatives that require highly specialized devices. Due to this, they often must travel overseas to onsite facilities to evaluate their new devices. The high cost and limited availability of using the facilities motivated the lab to build a local facility for evaluating their devices. The Hawaii Muon Beamline is a testbed for new particle detectors being developed inside the lab. It features several particle detectors whose measurements are used as benchmarks for newer detectors. This report focuses on the work done on the Scintillating Tracker Planes during the 2018/19 academic year. Updates to the data acquisition electronics are made to improve reliability and performance.

Particle Detector R&D

International Journal of Modern Physics A, 2006

Recent results on the particle detector R&D for new accelerators are reviewed. Different approaches for the muon systems, hadronic and electromagnetic calorimeters, particle identification devices, and central trackers are discussed. Main emphasis is made on the detectors for the International Linear Collider and Super B-factory. A detailed description of a novel photodetector, a so called Silicon Photomultiplier, and its applications in scintillator detectors is presented.

Commissioning and performance of the CMS silicon strip tracker with cosmic ray muons

2010

During autumn 2008, the Silicon Strip Tracker was operated with the full CMS experiment in a comprehensive test, in the presence of the 3.8 T magnetic field produced by the CMS superconducting solenoid. Cosmic ray muons were detected in the muon chambers and used to trigger the readout of all CMS sub-detectors. About 15 million events with a muon in the tracker were collected. The efficiency of hit and track reconstruction were measured to be higher than 99% and consistent with expectations from Monte Carlo simulation. This article details the commissioning and performance of the Silicon Strip Tracker with cosmic ray muons. muon data were recorded in the presence of a solenoidal field up to the maximum design value of 4 T. The results from this period of data-taking are described elsewhere . Construction of the full SST was completed in 2007 and 15% of the full SST was commissioned and operated for several months prior to installation in the underground CMS experimental hall. The results of this period of stand-alone operation, known as the Slice Test, are also described elsewhere .