scholarly journals Initial results from the high energy experiment PDS aboard BeppoSAX

1997 ◽  
Author(s):  
F. Frontera ◽  
D. Dal Fiume ◽  
E. Costa ◽  
M. Feroci ◽  
M. Orlandini ◽  
...  
Keyword(s):  
High Energy ◽  
Initial Results

scholarly journals Initial Results From a CdTe High-Energy X-ray Detector on a TEM

2016 ◽  
Vol 22 (S3) ◽  
pp. 312-313
Author(s):  
Hendrik O. Colijn ◽  
David W. McComb
Keyword(s):  
High Energy ◽  
X Ray ◽  
Initial Results

scholarly journals Multimessenger search for sources of gravitational waves and high-energy neutrinos: Initial results for LIGO-Virgo and IceCube

2014 ◽  
Vol 90 (10) ◽  
Author(s):  
M. G. Aartsen ◽  
M. Ackermann ◽  
J. Adams ◽  
J. A. Aguilar ◽  
M. Ahlers ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
High Energy ◽  
High Energy Neutrinos ◽  
Initial Results

scholarly journals Multifrequency Behaviour of the Gamma-Ray Binary System PSR B1259-63: Modelling the FERMI Flare

2014 ◽  
Vol 1 (1) ◽  
pp. 127-131
Author(s):  
Brian Van Soelen ◽  
Pieter J. Meintjes
Keyword(s):  
Binary System ◽  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
High Energy Gamma ◽  
Very High Energy ◽  
Energy Gamma ◽  
Initial Results ◽  
Very High

This paper presents a brief overview of the multifrequency properties of the gamma-ray binary system PSR B1259-63 from radio to very high energy gamma-rays. A summary is also presented of the various models put forward to explain the Fermi "flare" detected in 2011. Initial results are presented of a new turbulence driven model to explain the GeV observations.

Convergent-Beam RHEED of GaAs(110) in a STEM: Theory and Experiment

1990 ◽  
Vol 48 (2) ◽  
pp. 394-395
Author(s):  
A. L. Bleloch ◽  
A. Howie ◽  
M. Y. Lanzerotti
Keyword(s):  
Large Angle ◽  
High Energy ◽  
Bloch Wave ◽  
Three Dimensions ◽  
Large Collection ◽  
Transmission Electron ◽  
Surface Resonance ◽  
Convergent Beam ◽  
Initial Results ◽  
Reflection Boundary

A number of approaches to the theory of reflection high energy electron diffraction (RHEED) have been published over the years. There have been, however, few direct comparisons with experiment. In particular, the authors are not aware of calculations of the type of convergent beam RHEED (CBRHEED) pattern with very large convergence angle presented here. (By the principle of reciprocity, parallel illumination and a large collection angle in STEM is equivalent to a large angle convergent probe in a conventional transmission electron microscope (CTEM)) Large angle CBRHEED patterns provide a convenient method for investigating the origin and sensitivity of the so called surface resonance lines. These lines are the prominent features marked on Figure 1. There have been a number of attempts to explain this phenomenon. Initial results of calculations on GaAs patterns are presented together with experimental results.The approach is an extension of that of Collela in that Bloch wave amplitudes in three dimensions are computed with suitable reflection boundary conditions.

High-energy monochromated Cu Kα1 x-ray source for electron spectroscopy of materials: initial results

2004 ◽  
Vol 36 (3) ◽  
pp. 275-279 ◽  
Author(s):  
G. Beamson ◽  
S. R. Haines ◽  
N. Moslemzadeh ◽  
P. Tsakiropoulos ◽  
P. Weightman ◽  
...  
Keyword(s):  
Electron Spectroscopy ◽  
High Energy ◽  
X Ray ◽  
Initial Results

scholarly journals The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 601 ◽  
Author(s):  
Olivia Stanners ◽  
Sean John ◽  
Helen M. Davies ◽  
Ieuan Watkins ◽  
Silvia Marchisio
Keyword(s):  
Base Material ◽  
High Energy ◽  
Energy Requirements ◽  
Joining Technology ◽  
Lower Porosity ◽  
Induction Current ◽  
Interlayer Bonding ◽  
Powder Interlayer ◽  
Solid State Joining ◽  
Initial Results

Powder Interlayer Bonding (PIB) has been considered as a lower-energy joining technology for nickel-based superalloys compared to conventional methods; such as friction welding. Typically; nickel-based superalloys exhibit high energy requirements for joining due to their high operating temperatures. However; PIB utilizes a localized temperature gradient created by an induction current; reducing the energy requirements for the process. PIB is a solid-state joining method that compresses and heats a powder interlayer between two faying surfaces to produce one joined workpiece. It has been successfully used to bond titanium alloys; and the objectives of this work were to explore its application as a joining method for nickel-based superalloys. Initial results showed that joining nickel-based superalloys via PIB is possible; and bondlines with very little porosity were observed. Further analysis showed that these bonded areas had lower porosity than the base material; suggesting PIB could be a successful joining method for difficult-to-join nickel-based superalloys.

High-Resolution X-Ray Spectra of Capella: Initial Results from the [ITAL]Chandra[/ITAL] High-Energy Transmission Grating Spectrometer

2000 ◽  
Vol 539 (1) ◽  
pp. L41-L44 ◽  
Author(s):  
C. R. Canizares ◽  
D. P. Huenemoerder ◽  
D. S. Davis ◽  
D. Dewey ◽  
K. A. Flanagan ◽  
...  
Keyword(s):  
High Resolution ◽  
High Energy ◽  
Energy Transmission ◽  
X Ray ◽  
Transmission Grating ◽  
Grating Spectrometer ◽  
Initial Results

scholarly journals Expression of interest for the CODEX-b detector

2020 ◽  
Vol 80 (12) ◽  
Author(s):  
Giulio Aielli ◽  
Eli Ben-Haim ◽  
Roberto Cardarelli ◽  
Matthew John Charles ◽  
Xabier Cid Vidal ◽  
...  
Keyword(s):  
B Physics ◽  
High Energy ◽  
Proof Of Concept ◽  
Design Studies ◽  
Baseline Design ◽  
Theoretical Approaches ◽  
Background Measurement ◽  
Shielding Design ◽  
Ancillary Studies ◽  
Initial Results

AbstractThis document presents the physics case and ancillary studies for the proposed CODEX-b long-lived particle (LLP) detector, as well as for a smaller proof-of-concept demonstrator detector, CODEX-$$\beta $$ β , to be operated during Run 3 of the LHC. Our development of the CODEX-b physics case synthesizes ‘top-down’ and ‘bottom-up’ theoretical approaches, providing a detailed survey of both minimal and complete models featuring LLPs. Several of these models have not been studied previously, and for some others we amend studies from previous literature: In particular, for gluon and fermion-coupled axion-like particles. We moreover present updated simulations of expected backgrounds in CODEX-b’s actively shielded environment, including the effects of shielding propagation uncertainties, high-energy tails and variation in the shielding design. Initial results are also included from a background measurement and calibration campaign. A design overview is presented for the CODEX-$$\beta $$ β demonstrator detector, which will enable background calibration and detector design studies. Finally, we lay out brief studies of various design drivers of the CODEX-b experiment and potential extensions of the baseline design, including the physics case for a calorimeter element, precision timing, event tagging within LHCb, and precision low-momentum tracking.

Sign in / Sign up

Export Citation Format

Share Document