For initial operation before evaluating gamma-ray detector
performance of the Sb[I.sub.3] detectors, [sup.241]Am alpha-particle energy spectra were recorded using the Sb[I.sub.3] detectors in a conventional measurement system comprising a preamplifier, bias supply, shaping amplifier, and a multichannel pulse-height analyzer.
The development of the cerium tribromide (Ce[Br.sub.3]) gamma-ray detector
among the lanthanum halide detector series (La[Br.sub.3]:Ce and La[Cl.sub.3]:Ce detectors) is one such example [4-11].
The European Space Agency is planning on launching the Atmospheric Space Interactions Monitor (ASIM) within the next three years, which will be able to better detect both dark and visible lightning from space, said ostgrd, who is part of the team that is building the ASIM gamma-ray detector
Two concepts are central to gamma-ray detector
sensitivity: detection efficiency and spectral resolution.
We also investigated placing an external gamma-ray detector
just outside the dewar next to the photomultiplier tube (PMT)s to both monitor external rates and hopefully use the data from this detector to normalize the trapping data to minimize these systematic shifts in the backgrounds.
LJMU scientists from the Astrophysics Research Institute are at the forefront of gamma-ray research, with the robotic Liverpool Telescope on the Canary island of La Palma having a uniquely powerful capability to react rapidly to notifications from gamma-ray detector
satellites -- such as NASA's Swift -- and catch the optical counterpart and fading afterglow of the explosion.
Many detector systems have common elements--an accelerator, gamma-ray detector
material, computers, algorithms--so improving any of these "building blocks" might improve the capability of many detector systems, including those in the field.
Brookhaven National Laboratory has successfully addressed this challenge with the introduction of the GammaScout, which achieves higher performance through better "as-grown" crystals and a new CZT gamma-ray detector
design that can correct responses caused by crystal defects.
(36) Karl Nelson, Thomas Gosnell, and David Knapp, The Effect of Gamma-Ray Detector
Energy Resolution on the Ability to Identify Radioactive Sources, Lawrence Livermore National Laboratory, Radiological and Nuclear Countermeasures Program, LLNL-TR-411374, February 2009, p.
With a modest price tag of $180 million, it is equipped with wide-angle gamma-ray detector
, an X-ray telescope, and an ultraviolet/optical telescope.