2 research outputs found
A prototype liquid Argon Time Projection Chamber for the study of UV laser multi-photonic ionization
This paper describes the design, realization and operation of a prototype
liquid Argon Time Projection Chamber (LAr TPC) detector dedicated to the
development of a novel online monitoring and calibration system exploiting UV
laser beams. In particular, the system is intended to measure the lifetime of
the primary ionization in LAr, in turn related to the LAr purity level. This
technique could be exploited by present and next generation large mass LAr TPCs
for which monitoring of the performance and calibration plays an important
role. Results from the first measurements are presented together with some
considerations and outlook.Comment: 26 pages, 27 figure
Study of ionization signals in a TPC filled with a mixture of liquid Argon and Nitrogen
In this paper we report on the evidence for ionization track signals from
cosmic ray muons and Compton electrons in a Time Projection Chamber (TPC)
filled with liquid Argon and doped with different fractions of Nitrogen. This
study has been conducted in view of the possible use of liquid Argon/Nitrogen
TPCs for the detection of gamma rays in the resonant band of the Nitrogen
absorbtion spectrum, a promising technology for security and medical
applications.Comment: v2: minor content change and picture improvement