Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

Beam Test of a SiPM-on-Tile ZDC Prototype with 5.3 GeV Positrons at Jefferson Laboratory

Sean Preins, Weibin Zhang, Ryan Tsiao, Mia Macias, Brice Saunders, Love Preet, Miguel Arratia

Abstract

We report on a beam test of a Silicon Photo-Multiplier (SiPM)-on-tile Zero Degree Calorimeter (ZDC) prototype developed for the future Electron-Ion Collider (EIC). The module implements the staggered scintillator-tile geometry envisioned for the final detector and includes 370 instrumented channels, corresponding to O(10%) of the full ZDC. The detector was tested using a 5.3 GeV positron beam at Jefferson Laboratory. We measure the energy response, shower shape, and spatial reconstruction performance of the detector and compare these results with simulation. These studies provide key input for the optimization of the final ePIC ZDC design.

Beam Test of a SiPM-on-Tile ZDC Prototype with 5.3 GeV Positrons at Jefferson Laboratory

Abstract

We report on a beam test of a Silicon Photo-Multiplier (SiPM)-on-tile Zero Degree Calorimeter (ZDC) prototype developed for the future Electron-Ion Collider (EIC). The module implements the staggered scintillator-tile geometry envisioned for the final detector and includes 370 instrumented channels, corresponding to O(10%) of the full ZDC. The detector was tested using a 5.3 GeV positron beam at Jefferson Laboratory. We measure the energy response, shower shape, and spatial reconstruction performance of the detector and compare these results with simulation. These studies provide key input for the optimization of the final ePIC ZDC design.
Paper Structure (15 sections, 1 equation, 12 figures)

This paper contains 15 sections, 1 equation, 12 figures.

Table of Contents

  1. Introduction
  2. ZDC Engineering Test Module
  3. Overview of Structure
  4. DAQ and Trigger System
  5. Commissioning and Data Acquisition
  6. Installation
  7. Channel Equalization
  8. Event Building
  9. Results
  10. Simulation and Event Selection
  11. Systematic Errors
  12. Detector Performance
  13. Position and Angle Distributions
  14. Energy Distributions
  15. Summary and Conclusions

Figures (12)

  • Figure 1: The ZDC prototype installed at Jefferson Lab in front of the Hall-D Pair Spectrometer
  • Figure 2: A diagram of the DAQ system for the engineering test module.
  • Figure 3: The trigger system for the engineering test module.
  • Figure 4: A typical cosmic ray event (left) and beam-on event (right).
  • Figure 5: Angular distributions of particle showers compared to a simulation of 5.3 GeV positrons. The combined systematic uncertainty is represented as an error band, and statistical uncertainty is represented with error bars.
  • ...and 7 more figures