Calibration of the GLAST Burst Monitor detectors

Andreas von Kienlin; Elisabetta Bissaldi; Giselher G. Lichti; Helmut Steinle; Michael Krumrey; Martin Gerlach; Gerald J. Fishman; Charles Meegan; Narayana Bhat; Michael S. Briggs; Roland Diehl; Valerie Connaughton; Jochen Greiner; R. Marc Kippen; Chryssa Kouveliotou; William Paciesas; Robert Preece; Colleen Wilson-Hodge

doi:10.1063/1.2757460

arXiv · 0704.2184

Calibration of the GLAST Burst Monitor detectors

Andreas von Kienlin·Elisabetta Bissaldi·Giselher G. Lichti·Helmut Steinle·Michael Krumrey·Martin Gerlach·Gerald J. Fishman·Charles Meegan·Narayana Bhat·Michael S. Briggs·Roland Diehl·Valerie Connaughton·Jochen Greiner·R. Marc Kippen·Chryssa Kouveliotou·William Paciesas·Robert Preece·Colleen Wilson-Hodge

View original source ↗Read source document ↗Export metadata ↓

Abstract

The GLAST Burst Monitor (GBM) will augment the capabilities of GLAST for the detection of cosmic gamma-ray bursts by extending the energy range (20 MeV to > 300 GeV) of the Large Area Telescope (LAT) towards lower energies by 2 BGO-detectors (150 keV to 30 MeV) and 12 NaI(Tl) detectors (10 keV to 1 MeV). The physical detector response of the GBM instrument for GRBs is determined with the help of Monte Carlo simulations, which are supported and verified by on-ground calibration measurements, performed extensively with the individual detectors at the MPE in 2005. All flight and spare detectors were irradiated with calibrated radioactive sources in the laboratory (from 14 keV to 4.43 MeV). The energy/channel-relations, the dependences of energy resolution and effective areas on the energy and the angular responses were measured. Due to the low number of emission lines of radioactive sources below 100 keV, calibration measurements in the energy range from 10 keV to 60 keV were performed with the X-ray radiometry working group of the Physikalisch-Technische Bundesanstalt (PTB) at the BESSY synchrotron radiation facility, Berlin.

Explore related subjects

astro-ph

Keep this discovery

BibTeX RIS

Andreas von Kienlin, Elisabetta Bissaldi, Giselher G. Lichti, Helmut Steinle, Michael Krumrey, Martin Gerlach, Gerald J. Fishman, Charles Meegan, Narayana Bhat, Michael S. Briggs, Roland Diehl, Valerie Connaughton, Jochen Greiner, R. Marc Kippen, Chryssa Kouveliotou, William Paciesas, Robert Preece, Colleen Wilson-Hodge. 2007-04-17. Calibration of the GLAST Burst Monitor detectors. https://doi.org/10.1063/1.2757460

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

arXiv2019

A new paradigm for the universe

This book provides a completely new approach to understanding the universe. The main idea is that the principal objects in the universe form a spectrum unified by the presence of a massive or hypermassive black hole. These objects are variously called quasars, active galaxies and spiral galaxies. The key to understanding their dynamics is angular momentum and the key tool, and main innovative idea of this work, is a proper formulation of "Mach's principle" using Sciama's ideas. In essence, what is provided here is a totally new paradigm for the universe. In this paradigm, there is no big bang, and the universe is many orders of magnitude older than current estimates for its age. Indeed there is no natural limit for its age.

astro-ph↗

arXiv2019

Rotation Curves of Spiral Galaxies

Rotation curves of spiral galaxies are the major tool for determining the distribution of mass in spiral galaxies. They provide fundamental information for understanding the dynamics, evolution and formation of spiral galaxies. We describe various methods to derive rotation curves, and review the results obtained. We discuss the basic characteristics of observed rotation curves in relation to various galaxy properties, such as Hubble type, structure, activity, and environment.

astro-ph↗

arXiv2018

Abrupt global events in the Earth's history: a physics perspective

The timeline of the Earth's history reveals quasi-periodicity of the geological record over the last 542 Myr, on timescales close, in the order of magnitude, to 1 Myr. What is the origin of this quasi-periodicity? What is the nature of the global events that define the boundaries of the geological time scale? I propose that a single mechanism is responsible for all three types of such events: mass extinctions, geomagnetic polarity reversals, and sea-level fluctuations. The mechanism is fast, and involves a significant energy release. The mechanism is unlikely to have astronomical causes, both because of the energies involved, and because it acts quasi-periodically. It must then be sought within the Earth itself. And it must be capable of reversing the Earth's magnetic field. The last requirement makes it incompatible with the consensus model of the origin of the geomagnetic field - the hydromagnetic dynamo operating in the Earth's fluid core. In the second part of the paper, I show that a vast amount of seemingly unconnected geophysical and geological data can be understood in a unified way if the source of the Earth's main magnetic field is a ~200-km-thick lithosphere, repeatedly magnetized as a result of methane-driven oceanic eruptions, which produce ocean flow capable of dynamo action. The eruptions are driven by the interplay of buoyancy forces and exsolution of dissolved gas, which accumulates in the oceanic water masses prone to stagnation and anoxia. Polarity reversals, mass extinctions, and sequence boundaries are consequences of these eruptions. Unlike the consensus model of geomagnetism, this scenario is consistent with the paleomagnetic data showing that "directional changes during a [geomagnetic polarity] reversal can be astonishingly fast, possibly occurring as a nearly instantaneous jump from one inclined dipolar state to another in the opposite hemisphere".

astro-ph↗