Speaker
Yichen Li
(Brookhaven National Laboratory)
Description
The fundamental properties of LAr are of particular interests for experimentalists as LArTPCs are now the preferred technology for many accelerator neutrinos and dark matter experiments. The electron longitudinal diffusion coefficients in Liquid Argon (LAr) are measured for electric fields range from 0.1-2.0 kV/cm at different drift distances up to 25 cm using the two experimental setup with 2-Liter and 20-Liter volume of LAr at BNL. The measurement principle, apparatus, and data analysis are described. Our result represents the world's best measurement of electron longitudinal coefficients in this range. The measured longitudinal diffusion results are directly applicable to the existing experiments such as MicroBooNE and are essential for the future LAr based experiment detector design such as SBN and DUNE. We also report the performance of the gas purification system, which is important for the design of the purification system of future large LArTPCs.
Primary author
Yichen Li
(Brookhaven National Laboratory)
Co-authors
Dr
Brett Viren
(Brookhaven National Laboratory)
Dr
Craig Thorn
(Brookhaven National Laboratory)
Dr
James Allen Stewart
(Brookhaven National Laboratory (US))
Dr
Jyoti Joshi
(Brookhaven National Laboratory)
Dr
Milind diwan
(BNL)
Dr
Thomas Tsang
(Brookhaven National Laboratory)
Dr
Triveni Rao
(Brookhaven National Laboratory)
Dr
Wei Tang
(Brookhaven National Laboratory)
Dr
William Morse
(Brookhaven National Laboratory)
Dr
Xin Qian
(Brookhaven National Laboratory)
Dr
steve kettell
(BNL)
