Real-Time Particle Identification in Liquid Xenon
- 26 July 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 68 (11), 2630-2636
- https://doi.org/10.1109/tns.2021.3099296
Abstract
We present an FPGA-based technique for the online identification of highly ionizing particles in a Liquid Xenon detector. The method was developed and successfully exploited to select α particles emitted by 241Am sources submerged in the liquid xenon in an overwhelming, mostly beam-related, γ-ray background. After revising the main features of xenon and other liquid noble gases as UV scintillating media, we describe the algorithm idea and its firmware implementation. We then present the results in terms of efficiency and background suppression for the real time α-particle tagging and the limits of the MEG trigger configuration. Finally we show that in MEG II we are going to overcome the main issues and further improve the performances.Keywords
Funding Information
- Istituto Nazionale di Fisica Nucleare
- University of Tokyo and MEXT/JSPS KAKENHI (JP22000004, JP26000004)
- JSPS Core-to-Core Program, Advanced Research Networks
This publication has 17 references indexed in Scilit:
- A liquid hydrogen target for the calibration of the MEG and MEG II liquid xenon calorimeterNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2015
- Operation and performance of the trigger system of the MEG experimentJournal of Instrumentation, 2014
- The MEG detector for μ +→e+ γ decay searchThe European Physical Journal C, 2013
- Liquid noble gas detectors for low energy particle physicsJournal of Instrumentation, 2013
- An FPGA-based trigger system for the search of μ+→e++γ decay in the MEG experimentJournal of Instrumentation, 2013
- MEG liquid xenon detectorJournal of Physics: Conference Series, 2011
- A radioactive point-source lattice for calibrating and monitoring the liquid xenon calorimeter of the MEG experimentNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2006
- Liquid xenon scintillation calorimetry and Xe optical propertiesIEEE Transactions on Dielectrics and Electrical Insulation, 2006
- Absorption of scintillation light in a 100 l liquid xenon -ray detector and expected detector performanceNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005
- Background suppression forμ→eγwith polarized muonsPhysical Review D, 1997