| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8180800 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2012 | 4 Pages |
Abstract
NEXT is a new experiment to search for neutrinoless double beta decay using a 100Â kg radio-pure high-pressure gaseous xenon TPC with electroluminescence readout. A large-scale prototype with a SiPM tracking plane has been built. The primary electron paths can be reconstructed from time-resolved measurements of the light that arrives to the SiPM plane. Our approach is to measure how many photons have reached each SiPM sensor each microsecond with a gated integrator. We have designed and tested a 16-channel front-end board that includes the analog paths and a digital section. Each analog path consists of three different stages: a transimpedance amplifier, a gated integrator and an offset and gain control stage. Measurements show good linearity and the ability to detect single photoelectrons.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
V. Herrero, J. Toledo, J.M. Català , R. Esteve, A. Gil, D. Lorca, J.M. Monzó, F. Sanchis, A. Verdugo,