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Related papers: Planck-LFI: Design and Performance of the 4 Kelvin…

200 papers

The LHCb experiment at CERN has been upgraded for the Run 3 operation of the Large Hadron Collider (LHC). A new concept of tracking detector based on Scintillating Fibres (SciFi) read out with multichannel silicon photomultipliers (SiPMs)…

Thin planar pixel modules are promising candidates to instrument the inner layers of the new ATLAS pixel detector for HL-LHC, thanks to the reduced contribution to the material budget and their high charge collection efficiency after…

Instrumentation and Detectors · Physics 2016-09-21 Anna Macchiolo , Richard Nisius , Natascha Savic , Stefano Terzo

Optical reflectivity measurements were performed on a single crystal of the d-electron heavy-fermion (HF) metal LiV2O4. The results evidence the highly incoherent character of the charge dynamics for all temperatures above T^* \approx 20 K.…

Strongly Correlated Electrons · Physics 2007-10-24 P. E. Jönsson , K. Takenaka , S. Niitaka , T. Sasagawa , S. Sugai , H. Takagi

The CLIC (Compact Linear Collider) RF power source is based on a new scheme of electron pulse compression and bunch frequency multiplication using injection by transverse RF deflectors into an isochronous ring. In this paper, we describe…

Accelerator Physics · Physics 2007-05-23 R. Corsini , A. Ferrari , J. P. Potier , L. Rinolfi , T. Risselada , P. Royer

A 325 MHz aluminum prototype of a spatially periodic rf quadrupole focusing linac was developed at the Institute of Modern Physics, Chinese Academy of Sciences, as a promising candidate for the front end of a high-current linac. It consists…

Accelerator Physics · Physics 2021-01-18 Peiyan Yu , Bin Zhang , Fengfeng Wang , Chenxing Li , Guozhen Sun , Zhijun Wang , Lubei Liu , Chenzhang Yuan , Yuan He , Hushan Xu

We present here the basic issues of our simulations of PLANCK/LFI observations focussing on the study of the stripes generated by the 1/f noise, including realistic estimates of the 1/f knee frequency, based on the Seiffert et al. (1997)…

Astrophysics · Physics 2007-05-23 C. Burigana , M. Malaspina , N. Mandolesi , L. Danse , D. Maino , M. Bersanelli , M. Maltoni

In the context of the Galactic Emission Mapping, a new receiver at 5GHz was developed to characterize the galactic foreground to the Cosmic Microwave Background Radiation. This is a 5GHz super heterodyne polarimeter with double down…

Instrumentation and Methods for Astrophysics · Physics 2010-10-18 Miguel Bergano , Luis Cupido , Domingos Barbosa , Rui Fonseca , Bruce Grossan , George Smoot

The paper describes a radio frequency (RF) spectrometer for 14N nuclear quadrupole resonance (NQR) spectroscopy that uses a detector coil cooled to 77 K to maximize measurement sensitivity. The design uses a minimally-intrusive network of…

Instrumentation and Detectors · Physics 2022-08-03 Jarred Glickstein , Soumyajit Mandal

We report on a traceable calibration system for a 3500mm-long console that carries a measurement system for inspecting the diameter of a circular reactor chassis. The system uses two single-pass laser interferometers with homodyne fringe…

Instrumentation and Detectors · Physics 2019-05-03 Simon Rerucha , Bretislav Mikel , Zdenek Matej , Ondrej Herman , Miroslava Hola , Michal Jelinek , Petr Jedlicka , Ondrej Cip , Josef Lazar

We present a vector network analyzer (VNA) based broadband cryogenic ferromagnetic resonance (FMR) spectrometer, operating up to 20 GHz over a temperature range of 11 to 350 K. A cost effective architecture is implemented through the…

Instrumentation and Detectors · Physics 2026-01-13 Anna Merin Francis , Sunil Nair

This paper presents an extensive characterization of the low-frequency noise (LFN) at room temperature (RT) and cryogenic temperature (4.2 K) of 40-nm bulk-CMOS transistors. The noise is measured over a wide range of bias conditions and…

Applied Physics · Physics 2024-05-29 Gerd Kiene , Sadik Ilik , Luigi Mastrodomenico , Masoud Babaie , Fabio Sebastiano

We studied noise properties of microwave signals transmitted through the cryogenic resonator. The experiments were performed with the 11.342 GHz sapphire loaded cavity resonator cooled to 6.2 K. Based on the measured transmission…

Instrumentation and Detectors · Physics 2021-02-23 Eugene Ivanov , Michael Tobar

Current designs for all three extremely large telescopes show the overwhelming adoption of the pyramid wavefront sensor (P-WFS) as the WFS of choice for adaptive optics (AO) systems sensing on natural guide stars (NGS) or extended objects.…

Context. Millimetre-wave astronomy is an important tool for both general astrophysics studies and cosmology. A large number of unidentified sources are being detected by the large field-of-view continuum instruments operating on large…

Instrumentation and Methods for Astrophysics · Physics 2023-03-29 Usasi Chowdhury , Florence Levy-Bertrand , Martino Calvo , Johannes Goupy , Alessandro Monfardini

We present here a study of the use of the SiAl alloy CE7 for the packaging of silicon devices at cryogenic temperatures. We report on the development of baseplates and feedhorn arrays for millimeter wave bolometric detectors for…

Results of identical pion correlations from the first year of data collection with the PHENIX detector at RHIC (\snn=130GeV) are presented. PHENIX has good particle identification using an electromagnetic calorimeter for timing, leading to…

Nuclear Experiment · Physics 2007-05-23 Stephen C. Johnson

In the frame of a R\&D effort conducted by CEA toward the design and the qualification of a 5 GHz LHCD system for the ITER tokamak, two 5 GHz 500 kW/5 s windows have been designed, manufactured and tested at high power in collaboration with…

Plasma Physics · Physics 2015-03-18 Julien Hillairet , J Kim , N Faure , J Achard , L Delpech , M Goniche , S Larroque , R Magne , L Marfisi , S Park , S Poli , N Dechambre , K Vulliez

Optical interferometers with suspended mirrors are the archetype of all current audio-frequency gravitational-wave detectors. The radiation pressure interaction between the motion of the mirror and the circulating optical field in such…

Optics · Physics 2019-08-07 T. Bodiya , V. Sudhir , C. Wipf , N. Smith , A. Buikema , A. Kontos , H. Yu , N. Mavalvala

We present the upGREAT THz heterodyne arrays for far-infrared astronomy. The Low Frequency Array (LFA) is designed to cover the 1.9-2.5 THz range using 2x7-pixel waveguide-based HEB mixer arrays in a dual polarization configuration. The…