English
Related papers

Related papers: The BaBar Calorimeter Light Pulser System

200 papers

The photon arm of the Compton polarimeter in Hall A of Jefferson Lab has been upgraded to allow for electron beam polarization measurements with better than 1% accuracy. The data acquisition system (DAQ) now includes an integrating mode,…

The analysis of data from x-ray microcalorimeters requires great care; their excellent intrinsic energy resolution cannot usually be achieved in practice without a statistically near-optimal pulse analysis and corrections for important…

Instrumentation and Detectors · Physics 2017-02-03 J. W. Fowler , B. K. Alpert , W. B. Doriese , Y. -I. Joe , G. C. O'Neil , J. N. Ullom , D. S. Swetz

Polarimetry with permille-level precision is essential for future electron-positron linear colliders. Compton polarimeters can reach negligible statistical uncertainties within seconds of measurement time. The dominating systematic…

Instrumentation and Detectors · Physics 2016-02-17 Benedikt Vormwald , Jenny List , Annika Vauth

Cosmic Microwave Background (CMB) lensing is a powerful probe of the matter distribution in the Universe. The standard quadratic estimator, which is typically used to measure the lensing signal, is known to be suboptimal for low-noise…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-26 Benjamin Horowitz , Simone Ferraro , Blake D. Sherwin

The photometric errors of the external calibrator for the FIRAS instrument on the COBE are smaller than the measurement errors on the cosmic microwave background (CMBR) spectrum (typically 0.02 MJy/sr, 1 sigma), and smaller than 0.01% of…

Astrophysics · Physics 2009-10-31 J. C. Mather , D. J. Fixsen , R. A. Shafer , C. Mosier , D. T. Wilkinson

Cellular metabolic rate is a good indicator of the physiological state of cells and its changes, which can be measured by total heat flux accompanying metabolism. Chip calorimeters can provide label-free and high throughput measurements of…

Biological Physics · Physics 2019-03-13 Jihye Kim , Sumin Seo , Jonghyun Kim , Sungmin Nam , Wonhee Lee

The existing CMS endcap calorimeters will be replaced with a High Granularity Calorimeter (HGCAL) for operation at the High Luminosity (HL) LHC. Radiation hardness and excellent physics performance will be achieved by utilising silicon pad…

Instrumentation and Detectors · Physics 2020-08-26 Artur Lobanov

The extremely low dark current of silicon carbide (SiC) detectors, even after high-fluence irradiation, was utilized to develop a beam monitoring system for a wide range of particle rates, i.e., from the kHz to the GHz regime. The system is…

Instrumentation and Detectors · Physics 2024-03-20 Simon Waid , Andreas Gsponer , Jürgen Maier , Philipp Gaggl , Richard Thalmeier , Thomas Bergauer

This paper presents one of the case studies of the Gamma Factory initiative -- a proposal of a new operation scheme of ion beams in the CERN accelerator complex. Its goal is to extend the scope and precision of the LHC-based research by…

Accelerator Physics · Physics 2020-06-01 Mieczyslaw Witold Krasny , Alexey Petrenko , Wieslaw Placzek

We present methods to measure the beam polarizations and the luminosity of $\gamma \gamma$ colliders at TeV energy scale. The beam polarizations of a $\gamma \gamma$ collider can easily be monitored by comparing the numbers of events of the…

High Energy Physics - Phenomenology · Physics 2011-07-19 Y. Yasui , I. Watanabe , J. Kodaira , I. Endo

An ellipsometer is a vital precision tool used for measuring optical parameters with wide applications in many fields, including accurate measurements in film thickness, optical constants, structural profiles, etc. However, the precise…

Transferring energy without transferring mass is a powerful paradigm to address the challenges faced when the access to, or the deployment of, the infrastructure for energy conversion is locally impossible or impractical. Laser beaming…

Applied Physics · Physics 2024-05-02 Richard Soref , Francesco De Leonardis , Gerard Daligou , Oussama Moutanabbir

Motivated by the challenge of identifying intruder ions in a cold ion crystal, we investigate calorimetry from emitted fluorescence light. Under continuous Doppler cooling, the ion crystal reaches a temperature equilibrium with a fixed…

We present the current status of the I2C stellar intensity interferometer used towards high angular resolution observations of stars in visible wavelengths. In these proceedings, we present recent technical improvements to the instrument,…

A silicon pixel detector with fine pitch size of 19x19 um, developed base on SOI (silicon on insulator) technology, was tested under the illumination of infrared laser pulses. As an alternative way to particle beam tests, the laser pulses…

Instrumentation and Detectors · Physics 2016-08-03 Yi Liu , Yunpeng Lu , Xudong Ju , Qun Ouyang

The electronics producing a few nanoseconds long LED pulses tuneable in the amplitude and the optical system distributing the LED light to scintillators by a single optical fibre are described. The properties of the LED pulses are…

Instrumentation and Detectors · Physics 2011-05-26 J. Cvach , M. Janata , J. Kvasnicka , D. Lednicky , I. Polak , J. Smolik , J. Zalesak

The in-beam tests of two Si pixel type TRACE detectors have been performed at Laboratori Nazionali di Legnaro (Italy). The aim was to investigate the possibility of identifying heavy-ion reactions products with mass A~10 at low kinetic…

The Dark MAtter Particle Explorer (DAMPE) instrument is a space-borne cosmic-ray detector, capable of measuring ion fluxes up to $\sim$500 TeV/n. This energy scale is made accessible through its calorimeter, which is the deepest currently…

Scintillating crystals are used for calorimetry in several high-energy physics experiments. For many of them, performance has to be ensured in very difficult operating conditions, like a high radiation environment and large particle fluxes,…

Instrumentation and Detectors · Physics 2017-08-23 F. Nessi-Tedaldi
‹ Prev 1 8 9 10 Next ›