Welcome | Arratia Research Group

Welcome to the Arratia Research Group website

Our current projects include

The Proton

Nuclear tomography @ JLab

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H1 lepton-jet

Proton tomography @ HERA and the EIC

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ATHENA detector

R&D for the Electron-Ion Collider

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Atacama

R&D for the CONDOR observatory

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Miguel Rodriguez, Barak Schmookler, and Ryan Tsaio planning irradiation test at UC Davis Cyclotron, May 2024

Miguel Rodriguez and Barak Schmookler mounting irradiation stand in UC David Cyclotron, during May 2024 campaign. SiPM testing for EIC

UCR group during SiPM irradiation test at the UC David Cyclotron, May 2024

UCR team carrying out the EIC SiPM irradiation test at UC Davis Cyclotron, May 2024

Ryan Tsiao testing SiPM at UC Davis Cyclotron, May 2024

Sean Preins and Peter Carney assembling Insert detector prototype at RHIC

Calorimeter insert prototype for ePIC at EIC undergoing testing at UCR

Sean Preins, Peter Carney, Insert Prototype in STAR Hall at the Relativistic Heavy Ion Collider

Panonamic view of Peter Carney, Ryan Tsiao and Yousef Abdelkadous installing prototype in the STAR Hall at RHIC

Insert ePIC prototype in place for testing in the STAR Hall at the Relativistic Heavy Ion Collider (RHIC)

UCR team in STAR Hall for installation of ePIC Insert Prototype

Sean Preins, Sebouh Paul, Bruce Bagby, JiaJun Huang and Peter Carney in Hall D testing calorimeter prototype

Yousef Abdelkadous, Miguel Rodriguez and Peter Carney soldering SiPM-on-tile modules

Miguel Rodriguez and Jiajun Huang working on calorimeter sipm-on-tile insert prototype for the EIC

Calorimeter Insert Prototype in Hall D at Jefferson Laboratory for testing with high-energy positrons. SiPM-on-tile design EIC calorimetry R&D

A group meeting October 2023

Miguel Rodriguez testing injection molded scintillator cells for calorimeter insert EIC

Students working in the lab

Peter Carney with his SiPM-on-tile hodoscope (tracker)

Peter Carney building a hodoscope with injected-molded scintillator cells and silicon photomultipliers (SiPMs).

Peter Carney and JiaJun soldering SiPM board

EIC "ePIC" detector model with our Few Degree Calorimeter

Calorimeter Insert Prototype (SiPM-on-tile) for Electron-Ion Collider EIC

Sean Preins mounting SiPM-on-tile setup for light-yield tests

Calorimeter insert prototype for calorimeter insert. SiPM-on-tile design prototype size. EIC calorimetry R&D

Miguel R, Bruce G and JiaJun H making a layer of calorimeter prototype

Calorimeter Insert exploded view. SiPM-on-tile hadronic calorimeter design. Beampipe calorimeter for the EIC. EIC Calorimetry R&D.

JiaJun Huang and Miguel Rodriguez working in the lab. SiPM characterization setup (left) and polishing scintillator tiles (right)

Bruce Bagby with desktop CNC trying out ways to cut scintillator cells for SiPM-on-tile design

Students working in the laboratory. SiPM and scintillator characterization studies (left) and painting of scintillator cells with reflective paint (right)

JiaJun Huang working on setup for SiPM calibration and characterization EIC calorimeters

Sean Preins, Peter Carney, Bruce Bagby, Sebouh Paul and Jiajun Huang with a calorimeter prototype

Calorimeter Insert prototype. EIC calorimetry R&D

Preparing for JLab test beam calorimeter insert January 2023

Hall-B CLAS12, Sean Preins, JiaJun Huan, Peter Carney, Sebouh Paul and Bruce Bagby

Peter Carney with reflow soldering SiPMs boards for Calorimeter Insert EIC

Sean Preins, Miguel Rodriguez and JiaJun Huang discussing a setup to characterize scintillators

SiPM-on-tile hexagonal module calorimeter insert prototype

Luis Garabito and Miguel Rodriguez in the lab

Sean Preins and Lucas Fayet-Faber discussing work. LED scanner for uniformity test of scintillators.

JiaJun holding PCB that he soldered. SiPM-on-tile design prototype for Electron-Ion Collider. Hexagon cell design. EIC R&D calorimetry.

Scintillator SiPM LED SiPM-on-tile. EIC R&D.

Group packing for test beam at Jefferson Lab

Peter Carney and JiaJun Huang working at the lab

JiaJun Huang doing testing

Sean Preins and Fayet-Faber working

Miguel Rodriguez working with waveshifting fibers

JiaJung Huang VR

Highschool students visiting the lab and using virtual-reality (VR) event display for the Electron Ion Collider (EIC). Outreach.

Scintillator tile. SiPM-on-tile. EIC R&D calorimetry

Sean Preins (middle) and Peter Carney (right) receiving prizes in Warsaw EIC meeting

Miguel Rodriguez, Samir Kulkarni and Bruce Bagby working in the lab

Scintillator tile, LED scanner for SiPM-on-tile uniformity test. EIC calorimetry R&D

Bruce Bagby, Jiajun Huang, Yousef Abdelkadous, Mia Macia, and Sean Preins at Berkeley lab for testing in 88 inch cyclotron

Samir Kulkarni, Bruce Bagby, and Miguel Rodriguez assembling stuff

Peter Carney, Miguel Rodriguez and Bruce Bagby soldering

Calorimeter Insert hexagonal module SiPM-on-tile

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