Results 201 to 210 of about 3,872 (226)

Exciton Polaritons in HgI₂ Crystals

physica status solidi (b), 1975
AbstractAt low temperatures a detailed study of the emission and reflection spectra of HgI2 crystals in the region of the ground state n = 1(Γ−Γ) exciton resonance has been carried out. It is found that the shape of the resonant exciton emission spectra in allowed and forbidden polarizations E ⊥ cand E ‖, and the relative positions of the emission and ...
I. Akopyan, B. Novikov, S. Permogorov, A. Selkin, V. Travnikov   +4 more
openaire   +1 more source

HgI/sub 2/ low energy beta particle detector

IEEE Transactions on Nuclear Science, 1990
A HgI/sub 2/ device structure was designed and tested which allows HgI/sub 2/ to be used to make low energy beta particle detectors. The devices detected tritium beta particles with an efficiency of about 25%. A protective encapsulant has been developed which should protect the devices for up to 20 years and will attenuate only a small fraction of the ...
K.S. Shah, M.R. Squillante, G. Entine
openaire   +1 more source

New concepts for scintillator/HgI/sub 2/ gamma ray spectroscopy

IEEE Transactions on Nuclear Science, 1994
The construction of a high energy resolution gamma ray detector consisting of a scintillator/mercuric iodide photodetector combination has been investigated. Several HgI/sub 2/ photodetectors have been fabricated and tested with standard NIM electronics.
Y.J. Wang, J.S. Iwanczyk, B.E. Patt
openaire   +1 more source

Daylighting Past Realities: Making Historical Social Injustice Visible Again Using HGIS-Based Virtual and Mixed Reality Experiences

Journal of Geovisualization and Spatial Analysis, 2021
Samantha Romano, N. Hedley
semanticscholar   +1 more source

Stoichiometry and electrical charge transport in HgI 2 crystals

Journal of Crystal Growth, 1991
Abstract Stoichiometry of vapor-grown HgI 2 (mercuric iodide) crystals has been studied quantitatively using Raman spectroscopy and liquid solution spectrophotometry. Evaluation of mercury excess is based on differentiation between the Raman spectra of HgI 2 and Hg 2 I 2 (mercurous iodide). Iodine excess is determined by dynamic dissolution of HgI
H. Hermon, M. Roth, J. Nissenbaum, M. Schieber, J. Shamir   +4 more
openaire   +1 more source

SURFACE EFFECT ON EXCITON RELAXATION IN RED HgI 2

Nonlinear Optics, 2002
Time-resolved photoluminescence spectra of red HgI 2 crystals under two-photon excitation have been investigated at 10 v; K, and the results are compared with those under one-photon excitation. The bound-exciton luminescence under one-photon excitation decays with components of lifetimes of 74 and 240 v; ps.
OHNO N., X. M. WEN
openaire   +1 more source

The growth of HgI₂ crystals

Kristall und Technik, 1980
AbstractThe paper presents a system for αHgI2 crystal growth by the temperature oscillation method. The system has a capability of crystal growing at an excess I2 or Hg vapour pressure. Optimum conditions for producing crystals up to 2 cm3 by volume have been established.
openaire   +1 more source

A Practicum on Uncertainty: Creation of an HGIS Database

2017
Integrating Geographic Information Systems (GIS) historical sources and geospatial technology offers a fruitful new approach to mapping, analyzing, and modeling the past. This project employs sources freely available online to create a historical geodatabase of the A Line of the Mexican National Railroad circa 1910.
openaire   +1 more source

Stabilnost mjernog sustava Scintrex HGI-2 gravimetra

2002
U radu je ispitivano ponašanje mjernog sustava Scintrex CG-3M, HGI-2 gravimetra. Hod je glavna karakteristika stabilnosti mjernog sustava gravimetra. Ispitivanje je obavljeno na osnovi promjena hoda u periodu od dva mjeseca, kontinuiranog mjerenja u periodu od devet dana i mjerenja u periodu od jednog dana.
Hećimović, Željko, Markovinović, Danko   +1 more
openaire   +1 more source

HGIS: A Healthcare-Oriented Approach to Geographic Information Systems

2019
The healthcare sector is rapidly changing to incorporate new technologies Antoni that enable the collection of unprecedented amounts of data. New paradigms such as mobile and smart healthcare are founded on these new technologies, such as the IoT, and the data they collect are no longer only medical but, instead, they refer to contextual information ...
Edgar Batista, Antoni Martínez-Ballesté, Marta Peña, Xavier Singla, Agusti Solanas   +4 more
openaire   +1 more source