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Title: The Flash ADC system and PMT waveform reconstruction for the Daya Bay experiment

To better understand the energy response of the Antineutrino Detector (AD), the Daya Bay Reactor Neutrino Experiment installed a full Flash ADC readout system on one AD that allowed for simultaneous data taking with the current readout system. This paper presents the design, data acquisition, and simulation of the Flash ADC system, and focuses on the PMT waveform reconstruction algorithms. For liquid scintillator calorimetry, the most critical requirement to waveform reconstruction is linearity. Several common reconstruction methods were tested but the linearity performance was not satisfactory. A new method based on the deconvolution technique was developed with 1% residual non-linearity, which fulfills the requirement. Here, the performance was validated with both data and Monte Carlo (MC) simulations, and 1% consistency between them has been achieved.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [2] ;  [2] ;  [2] ;  [4] ;  [2] ;  [5] ;  [3] ;  [6] ;  [2] ;  [6] ;  [3]
  1. Institute of High Energy Physics, Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  2. Institute of High Energy Physics, Beijing (China); State Key Lab of Particle Detection and Electronics, Beijing (China)
  3. Institute of High Energy Physics, Beijing (China)
  4. Institute of High Energy Physics, Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); State Key Lab of Particle Detection and Electronics, Beijing (China)
  5. Brookhaven National Lab. (BNL), Upton, NY (United States)
  6. Sun Yet-Sen Univ., Guangzhou (China)
Publication Date:
Report Number(s):
BNL-207852-2018-JAAM
Journal ID: ISSN 0168-9002
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 895; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Flash; ADC; Waveform reconstruction
OSTI Identifier:
1460819