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The effect of temperature controlled annealing on the confined valence electron states in CdSe nanocrystal arrays, deposited as thin films, was studied using two-dimensional angular correlation of annihilation radiation (2D-ACAR). A…

The Wide Field Imager (WFI), one of two instruments on ESA's next large X-ray mission Athena, is designed for imaging spectroscopy of X-rays in the range of 0.2 to 15 keV with a large field of view and high count rate capability. The focal…

The Advanced CCD Imaging Spectrometer (ACIS) is one of two focal-plane instruments on the Chandra X-ray Observatory. During initial radiation-belt passes, the exposed ACIS suffered significant radiation damage from trapped soft protons…

天体物理仪器与方法 · 物理学 2015-05-19 C. E. Grant , B. LaMarr , M. W. Bautz , S. L. O'Dell

Modern precise radial velocity spectrometers are designed to infer the existence of planets orbiting other stars by measuring few-nm shifts in the positions of stellar spectral lines recorded at high spectral resolution on a large-area…

天体物理仪器与方法 · 物理学 2019-09-24 Cullen H. Blake , Dan Li , Joseph R. Tufts , Joe Ninan , Suvrath Mahadevan , Chad Bender , Fred R. Hearty , Andy Monson , Mark Giovinazzi

The influence of irradiation by electrons with energies of $0.5-2.5$\,MeV at temperatures of about $10$\,K on the basal-plane resistivity of the YBa$_2$Cu$_3$O$_{7-\delta}$ single crystals is investigated in the range from $T_c$ to…

超导电性 · 物理学 2019-01-21 R. V. Vovk , G. Ya. Khadzhai , O. V. Dobrovolskiy

Cold ions trapped in the vicinity of conductive surfaces experience heating of their oscillatory motion. Typically, the rate of this heating is orders of magnitude larger than expected from electric field fluctuations due to thermal motion…

原子物理 · 物理学 2018-01-17 Ivan A. Boldin , Alexander Kraft , Christof Wunderlich

The ACIS front-illuminated CCDs onboard the Chandra X-ray Observatory were damaged in the extreme environment of the Earth's radiation belts, resulting in enhanced charge transfer inefficiency (CTI). This produces a row dependence in gain,…

天体物理学 · 物理学 2009-10-31 L. K. Townsley , P. S. Broos , G. P. Garmire , J. A. Nousek

Thermal annealing is a widely used thin-film processing technique for modifying interfacial optical losses and electronic scattering in plasmonic materials. Here, we investigate how thermal annealing of gold thin films deposited on silicon…

光学 · 物理学 2026-01-09 A. Márquez , R. Esquivel-Sirvent

We report on the effects of ionizing radiation on 65nm CMOS transistors held at approximately -20C during irradiation. The pattern of damage observed after a total dose of 1 Grad is similar to damage reported in room temperature exposures,…

仪器与探测器 · 物理学 2016-01-20 M. Krohn , B. Bentele , J. P. Cumalat , S. R. Wagner , D. C. Christian , G. Deptuch , F. Fahim , J. Hoff , A. Shenai

CdS thin film samples were fabricated using spin coating technique on normal glass and conductive glass substrates and annealed at different temperatures. According to the XRD patterns of films prepared on normal glass substrates,…

材料科学 · 物理学 2018-08-28 D. M. C. U. Dissanayake , J. S. T. Wickramasinghe , P. Samarasekara

Pixelated CdZnTe detectors are a promising imaging-spectrometer for gamma-ray astrophysics due to their combination of relatively high energy resolution with room temperature operation negating the need for cryogenic cooling. This reduces…

仪器与探测器 · 物理学 2023-09-01 Daniel Shy , David Goodman , Ryan Parsons , Michael Streicher , Willy Kaye , Lee Mitchell , Zhong He , Bernard Phlips

We study the impact of an unshielded dielectric $\unicode{x2013}$ here, a bare optical fiber $\unicode{x2013}$ on a $^{40}$Ca${^+}$ ion held several hundred $\mu$m away in a cryogenic surface electrode trap. We observe distance-dependent…

原子物理 · 物理学 2026-03-11 M. Bruff , L. Sonderhouse , K. N. David , J. Stuart , D. H. Slichter , D. Leibfried

Within a 1.5 year comprehensive fading experiment several batches of LiF:Mg,Ti and LiF:Mg,Cu,P thermoluminescence detectors (TLDs) were studied. The TLDs originated from two manufacturers and were processed by three laboratories using…

仪器与探测器 · 物理学 2013-02-20 P. Bilski , T. Berger , M. Hajek , A. Twardak , C. Koerner , G. Reitz

To face the higher levels of radiation due to the 10-fold increase in integrated luminosity during the High-Luminosity LHC, the CMS detector will replace the current Calorimeter Endcap (CE) using the High-Granularity Calorimeter (HGCAL)…

We present measurements of the motional heating rate of a trapped ion at different trap frequencies and temperatures between $\sim$0.6 and 1.5 MHz and $\sim$4 and 295 K. Additionally, we examine the possible effect of adsorbed surface…

原子物理 · 物理学 2015-06-23 C. D. Bruzewicz , J. M. Sage , J. Chiaverini

This paper presents the design and benchmarking of cryogenic bulk-FETs using an experimentally calibrated TCAD framework that integrates 2-D electrostatics and interface-trap effects from $T = 2$ K to 300 K. For a 28-nm node device, carrier…

应用物理 · 物理学 2025-12-03 Nilesh Pandey , Dipanjan Basu , Sanjay K. Banerjee

Dense arrays of trapped ions provide one way of scaling up ion trap quantum information processing. However, miniaturization of ion traps is currently limited by sharply increasing motional state decoherence at sub-100 um ion-electrode…

Skipper CCDs are a mature detector technology that has been suggested for future space telescope instruments requiring sub-electron readout noise in the near-ultraviolet to the near-infrared. While modern skipper CCDs inherit from the…

The pn camera of EPIC is inherently robust against radiation damage effects. Nevertheless, the knowledge of charge transfer inefficiency (CTI) of the pn camera is crucial for obtaining the correct energy scale. We describe detailed in-orbit…

天体物理学 · 物理学 2007-05-23 K. Dennerl , U. G. Briel , M. J. Freyberg , F. Haberl , N. Meidinger , V. E. Zavlin

A photoionized gas under constant pressure can display a thermal instability, with three or more solutions for possible thermal equilibrium. A unique solution of the structure of the irradiated medium is obtained only if electron conduction…

天体物理仪器与方法 · 物理学 2015-05-13 B. Czerny , L. Chevallier , A. C. Goncalves , A. Rozanska , A. -M. Dumont