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Related papers: Planck-LFI radiometers tuning

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Precision motion stages play a critical role in various manufacturing and inspection equipment, for example, the wafer/reticle scanning in photolithography scanners and positioning stages in wafer inspection systems. To meet the growing…

Systems and Control · Electrical Eng. & Systems 2023-09-22 Jingjie Wu , Lei Zhou

We constrain polarized foreground emission between 30 and 70 GHz with the Planck Low Frequency Instrument (LFI) and WMAP data within the global Bayesian BeyondPlanck framework. We combine for the first time full-resolution Planck LFI…

This paper presents the tuning of a reset-based element called "Constant in gain and Lead in phase" (CgLp) in order to achieve desired precision performance in tracking and steady state. CgLp has been recently introduced to overcome the…

Systems and Control · Electrical Eng. & Systems 2020-05-11 Mahmoud Shirdast Bahnamiri , Nima Karbasizadeh , Ali Ahmadi Dastjerdi , Niranjan Saikumar , S. Hassan HosseinNia

The paper is devoted to the methods of determination of the cosmological parameters from recent CMB observations. We show that the more complex models of kinetics of recombination with a few "missing" parameters describing the recombination…

Astrophysics · Physics 2009-11-07 A. G. Doroshkevich , I. P. Naselsky , P. D. Naselsky , I. D. Novikov

In the previous paper an adaptive filtering based on a reference recursive recipe was developed and tested on a simulated dynamics of a spring, mass, and damper with a weak nonlinear spring. In this paper the above recipe is applied to a…

Methodology · Statistics 2015-05-28 Shyam Mohan M , Naren Naik , R. M. O. Gemson , M. R. Ananthasayanam

Radiometry has been of fundamental importance in astronomy from the early beginnings. In this review, we provide an overview of how to achieve a valid laboratory calibration of space telescopes and discuss ways to reliably extend this…

Instrumentation and Methods for Astrophysics · Physics 2016-01-12 Anuschka Pauluhn , Martin C. E. Huber , Peter L. Smith , Luis Colina

Since 2008 the Fermi/LAT instrument has delivered highly time-resolved gamma-ray spectra and detailed variability curves for a steadily increasing number of AGN. For detailed AGN studies the Fermi/LAT data have to be combined with, and…

High Energy Astrophysical Phenomena · Physics 2010-07-05 Lars Fuhrmann

Interest in the study of magnetic fields and the properties of interstellar dust, explored through increasingly capable far-IR/submillimeter polarimetry, along with maturing detector technology, have set the stage for a transformative leap…

Instrumentation and Methods for Astrophysics · Physics 2025-09-03 C. Darren Dowell , Brandon S. Hensley , Marc Sauvage

A new method is presented for modeling the transformation between two polarimetric pulse profiles in the Fourier domain. In practice, one is a well-determined standard with high signal-to-noise ratio and the other is an observation that is…

Astrophysics · Physics 2007-05-23 Willem van Straten

The past five years have seen a rapid rise in the use of tunable filters in many diverse fields of astronomy, through Taurus Tunable Filter (TTF) instruments at the Anglo-Australian and William Herschel Telescopes. Over this time we have…

Astrophysics · Physics 2011-03-10 D. H. Jones , P. L. Shopbell , J. Bland-Hawthorn

Phonon-assisted tunneling in a double barrier resonant tunneling device can be seen as a resonance in the electron-phonon Fock space which is tuned by the applied voltage. We show that the geometrical parameters can induce a symmetry…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 L. E. F. Foa Torres , H. M. Pastawski , S. S. Makler

A wide variety of applications of microwave cavities, such as measurement and control of superconducting qubits, magnonic resonators, and phase noise filters, would be well served by having a highly tunable microwave resonance. Often this…

Instrumentation and Detectors · Physics 2020-07-07 T. J. Clark , V. Vadakkumbatt , F. Souris , H. Ramp , J. P Davis

Recently, decomposing complex problems into simple subtasks--a crucial part of human-like natural planning--to solve the given problem has significantly boosted the performance of large language models (LLMs). However, leveraging such…

Computation and Language · Computer Science 2025-07-11 Mihir Parmar , Palash Goyal , Xin Liu , Yiwen Song , Mingyang Ling , Chitta Baral , Hamid Palangi , Tomas Pfister

We describe a cryogenic instrumentation platform incorporating commercially-available field-programmable gate arrays (FPGAs) configured to operate well beyond their specified temperature range. The instrument enables signal routing,…

Instrumentation and Detectors · Physics 2016-01-20 I. D. Conway Lamb , J. I. Colless , J. M. Hornibrook , S. J. Pauka , S. J. Waddy , M. K. Frechtling , D. J. Reilly

State-of-the-art magnetic field measurements performed in shielded environments with carefully controlled conditions rarely reflect the realities of those applications envisioned in the introductions of peer-reviewed publications.…

Atomic Physics · Physics 2020-10-13 Kai-Mei C. Fu , Geoffrey Z. Iwata , Arne Wickenbrock , Dmitry Budker

Existing optimization methods are used to calculate the upper-bounds on radiation efficiency with and without the constraint on self-resonance. These bounds are used for the design and assessment of small electric-dipole-type antennas. We…

Classical Physics · Physics 2019-04-05 L. Jelinek , K. Schab , M. Capek

Since the MICROSCOPE instrument aims to measure accelerations as low as a few 10$^{-15}$\,m\,s$^{-2}$ and cannot operate on ground, it was obvious to have a large time dedicated to its characterization in flight. After its release and first…

The next generation of Cosmic Microwave Background experiments will produce cosmic variance limited observations over a large fraction of sky and for a large range of multipoles. In this work we discuss different consistency tests that can…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-22 Thibaut Louis , Xavier Garrido , Adam Soussana , Matthieu Tristram , Sophie Henrot-Versillé , Sylvain Vanneste

We present a method of subtracting the foreground contamination for the measurement of CMB polarization. We calculate the resultant errors on CMB polarization and temperature-polarization cross correlation power spectra for the high…

Astrophysics · Physics 2007-05-23 Simon Prunet , Shiv K. Sethi , Francois R. Bouchet
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