LRS: Acquisition system (setting and test)

This document is intended to describe the migration between one CCD acquisition system to another. The original system works from the year 2000 and is well integrated in the TNG Instrument control system, the new will be based on the ARC controller and a new acquisition software system. At the beginning of this document, we will compare the different methods used by the two CCD controller to manage the scan and reading. We will describe the existing CCD waveforms, written with the waveform editor (skytech controller), the waveforms programmed with the assembler code (ARC controller) and the theoretical waveforms provided by e2v. Following we will illustrate the electronic tests on the clock sequences and the test on the CCD detector

HARPS-N Autoguide manual

This User Manual is intended to give all necessary information to potential users of the HARPS-N instrument, to help them to use the HARPS-N autoguide system and manages the observation at the TNG telescope

HARPS-N Quick start guide

This User Manual is intended to give all necessary information to potential users of the HARPS-N instrument, to help them to use the instrument and manages the observation at the TNG telescope

HARPS-N LCU manual

This Manual is intended to give all necessary information to potential users of the HARPS-N instrument, to help them to use the HARPSN LCU

HARPS-N User manual

This User Manual is intended to give all necessary information to potential users of the HARPS-N instrument, to help them decide on the opportunity to use the instrument for their scientific applications, to be used as a reference when writing observing proposals and when preparing the observations. For this purpose we give • An overall description of the HARPS-N instrument, its performance and its observing modes; • Information on the preparation of the observations; • Information on the observing process; • A description of the HARPS-N data and near real-time pipeline data reductio

Light harvesting with Ge quantum dots embedded in SiO2 and Si3N4

Cataloged from PDF version of article.Germanium quantum dots (QDs) embedded in SiO2 or in Si3N4 have been studied for light harvesting purposes. SiGeO or SiGeN thin films, produced by plasma enhanced chemical vapor deposition, have been annealed up to 850 degrees C to induce Ge QD precipitation in Si based matrices. By varying the Ge content, the QD diameter can be tuned in the 3-9 nm range in the SiO2 matrix, or in the 1-2 nm range in the Si3N4 matrix, as measured by transmission electron microscopy. Thus, Si3N4 matrix hosts Ge QDs at higher density and more closely spaced than SiO2 matrix. Raman spectroscopy revealed a higher threshold for amorphous-to-crystalline transition for Ge QDs embedded in Si3N4 matrix in comparison with those in the SiO2 host. Light absorption by Ge QDs is shown to be more effective in Si3N4 matrix, due to the optical bandgap (0.9-1.6 eV) being lower than in SiO2 matrix (1.2-2.2 eV). Significant photoresponse with a large measured internal quantum efficiency has been observed for Ge QDs in Si3N4 matrix when they are used as a sensitive layer in a photodetector device. These data will be presented and discussed, opening new routes for application of Ge QDs in light harvesting devices. (C) 2014 AIP Publishing LLC

LRS: Implementation of ARC controller

This document is intended to give some information about the operations to be done for the upgrade of the existing cryostat to the new acquisition system based on a ARC controller. This documentation includes the internal wiring and the cables specifications

SOXS: UV-VIS Detector System Design

In this document is presented a general overview about the UV-VIS detector system, the detector selection vs detector performances and the electronics adopted to control and manage the CCD readout

SOXS: UV-VIS Detector System setting and test

This document is intended to describe the CCD acquisition system for SOXS and the test on the electronics and on the detector. At the beginning of this document, we will describe the E2V4482 CCD, the CCD settings and the phases for the different readout modes. We will describe the generated CCD waveforms, written with the waveform editor (BlueWave), we will show the waveforms generated by the controller and the theoretical waveforms provided by e2v. Following we will illustrate the electronic tests on the bias, clock sequences and the test on the CCD detector