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Related papers: A Novel X-Axis Tuning Fork Gyroscope with "8 Verti…

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We report on the design, production, and testing of advanced double-sided silicon strip detectors under development at the Max-Planck-Institute as part of the Medium Energy Gamma-ray Astronomy (MEGA) project. The detectors are designed to…

Astrophysics · Physics 2009-11-07 P. F. Bloser , F. Schopper , R. Andritschke , G. Kanbach , A. Zoglauer , P. Lechner

OSIRIS is a near-infrared integral field spectrograph operating behind the adaptive optics system at W. M. Keck Observatory. While OSIRIS has been a scientifically productive instrument to date, its sensitivity has been limited by a grating…

Instrumentation and Methods for Astrophysics · Physics 2018-02-14 Etsuko Mieda , Shelley A. Wright , James E. Larkin , James R. Graham , Sean M. Adkins , James E. Lyke , Randy D. Campbell , Jerome Maire , Tuan Do , Jacob Gordon

A testbeam telescope, based on ATLAS IBL silicon pixel modules, has been built. It comprises six planes of planar silicon sensors with 250 x 50 um^2 pitch, read out by ATLAS FE-I4 chips. In the CERN SPS H8 beamline (180 GeV pi+) a…

A high-frequency magnetic probe has been designed and developed on XuanLong-50 (EXL-50) spherical torus to measure high-frequency magnetic field fluctuations caused by energetic ions and electrons in the plasma. The magnetic loop, radio…

Plasma Physics · Physics 2023-12-04 Mingyuan Wang , Xiuchun Lun , Xiaokun Bo , Bing Liu , Adi Liu , Yuejiang Shi

We report on the observation of photo-thermal feed-back in a stable dual-carrier optical spring. The optical spring is realized in a 7 cm Fabry-Perot cavity comprised of a suspended 0.4 g small end mirror and a heavy input coupler,…

When coupled with additional degrees of freedom, centrifuge-based motion platforms can combine the agility of hexapod-based platforms with the ability to sustain higher G-levels and an extended motion space, required for simulating extreme…

Systems and Control · Electrical Eng. & Systems 2022-02-11 Tigran Mkhoyan , Mark Wentink , Bernd de Graaf , M. M. , van Paassen , Max Mulder

(Abridged) Context: In the previous paper in this series, we identified that a pentagonal arrangement of five telescopes, using a kernel-nulling beam combiner, shows notable advantages for some important performance metrics for a…

Instrumentation and Methods for Astrophysics · Physics 2023-02-08 Jonah T. Hansen , Michael J. Ireland , Romain Laugier , the LIFE collaboration

A new microbeam-rigid-body gyroscope is introduced and its static and dynamic behaviours are studied. The main structure includes a microbeam and an eccentric end-rigid-body influencing the dynamic and static characteristics of the sensor.…

Classical Physics · Physics 2014-08-19 Seyed Amir Mousavi Lajimi , Glenn Heppler , Eihab Abdel-Rahman

Quartz tuning forks are high-quality mechanical oscillators widely used in low temperature physics as viscometers, thermometers and pressure sensors. We demonstrate that a fork placed in liquid helium near the surface of solid helium is…

Materials Science · Physics 2017-03-08 Igor Todoshchenko , Alexander Savin , Miika Haataja , Jukka-Pekka Kaikkonen , Pertti Hakonen

A cryo scanning transmission X-ray microscope, the cryo-STXM, has been designed and commissioned at the Canadian Light Source synchrotron. The instrument is designed to operate from 100 - 4000 eV (lambda = 12.4 - 0.31 nm). Users can insert…

We present a novel, model-independent technique for fitting the cross-component of weak lensing shear, $\gamma_\times$, along a line of sight by combining kinematic and photometric measurements of a single lensed galaxy. Rather than relying…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-26 Christopher Hopp , David Wittman

A new technical method is developed for soft x-ray spectroscopy of near-edge x-ray absorption fine structure (NEXAFS). The measurement is performed with continuously rotating linearly polarized light over 2$\pi$, generated by a segmented…

Instrumentation and Detectors · Physics 2021-11-10 Yoshiki Kudo , Yasuyuki Hirata , Masafumi Horio , Masahito Niibe , Iwao Matsuda

The ability to accurately predict the contrast achieved from high contrast imagers is important for efficient scheduling and quality control measures in modern observatories. We aim to consistently predict and measure the raw contrast…

Instrumentation and Methods for Astrophysics · Physics 2023-12-06 Benjamin Courtney-Barre , Robert De Rosa , Rosita Kokotanekova , Cristian Romero , Matias Jones , Julien Milli , Zahed Wahhaj

Graphenic carbon (GC) x-ray transmission windows for EDX and XRF applications with a high transparency for x-rays below 2.5 keV have been fabricated on 6 inch wafers with a CMOS-compatible CVD process. GC windows with an open diameter of…

Materials Science · Physics 2016-03-16 Sebastian Huebner , Natsuki Miyakawa , Andreas Pahlke , Franz Kreupl

Analysis of XRD diffraction patterns is one of the keystones of materials science and materials research. With the advancement of data-driven methods for materials design, candidate materials can be quickly screened for the study of a…

We have developed high dispersion VPH (volume phase holographic) grisms with zinc selenide (ZnSe) prisms for the cryogenic optical system of MOIRCS (Multi-Object near InfraRed Camera and Spectrograph) for Y-, J-, H- and K- band…

The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is the science module of the Canadian-built Fine Guidance Sensor (FGS) onboard the James Webb Space Telescope (JWST). NIRISS has four observing modes: 1) broadband imaging…

Higher harmonic modes in nanoscale silicon cantilevers and microscale quartz tuning forks are detected and characterized using a custom scanning optical homodyne interferometer. Capable of both mass and force sensing, these resonators…

Other Condensed Matter · Physics 2008-03-16 Gabriel Zeltzer , Jason C. Randel , Amit K. Gupta , Rashid Bashir , Sang-Hun Song , Hari C. Manoharan

We describe a system being developed for measuring the shapes of the mirrors of the Fred Young Submillimeter Telescope (FYST), now under construction for the CCAT Observatory. "Holographic" antenna-measuring techniques are an efficient and…

Instrumentation and Methods for Astrophysics · Physics 2021-03-16 Xiaodong Ren , Pablo Astudillo , Urs U. Graf , Richard E. Hills , Sebastian Jorquera , Bojan Nikolic , Stephen C. Parshley , Nicolás Reyes , Lars Weikert