scholarly journals THE APPLICATION OF THE BrilLanCe SERIES SCINTILLATION DETECTOR IN THE SPECTROMETER OF NEUTRAL PARTICLES FOR THE SATELLITE EXPERIMENT ZINA-NT

2012 ◽  
Vol 12 ◽  
pp. 28-36
Author(s):  
IRENE V. ARKHANGELSKAJA ◽  
ANDREY I. ARKHANGELSKY ◽  
ALEXEY.G BATISCHEV ◽  
ARKADY M. GALPER ◽  
NATALYA V. KONDRATYEVA ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Solar Flares ◽  
Gamma Ray ◽  
Light Output ◽  
Gamma Ray Bursts ◽  
X Ray ◽  
Neutral Particles ◽  
Satellite Experiment ◽  
Excellent Energy Resolution ◽  
Radiation Conditions

Spectrometric detector complex ZINA-NT is intended to study a radiation conditions onboard satellite and characteristics of hard X-ray and gamma-ray fluxes from GRB, solar flares and to detect other non-stationary fluxes of cosmic gamma-rays. The advantages for using of this new detector for modification of present neutral particles detector on the base of CsI(Tl) are discussed. Scintillation detectors based on BrilLanCe series crystal have got very small lighting time, an excellent energy resolution and light output, more intensive than devices based on CsI(Tl). Using of BrilLanCe series crystal instead of CsI(Tl) ones allows to detect terrestrial gamma flashes (TGF), gamma ray bursts (GRB) and solar flares with smaller time durations and intensities. Moreover, the counts rate linearity region of BrilLanCe detectors is extended up to 106 s-1 and it allows to observe a very intensive events. So, the using of such type of detector permits us the possibility to separate gamma-quanta and neutrons on the timescales less than 50 microseconds.

scholarly journals INTERNAL ENERGY DISSIPATION OF GAMMA-RAY BURSTS OBSERVED WITHSWIFT: PRECURSORS, PROMPT GAMMA-RAYS, EXTENDED EMISSION, AND LATE X-RAY FLARES

2014 ◽  
Vol 789 (2) ◽  
pp. 145 ◽  
Author(s):  
You-Dong Hu ◽  
En-Wei Liang ◽  
Shao-Qiang Xi ◽  
Fang-Kun Peng ◽  
Rui-Jing Lu ◽  
...  
Keyword(s):  
Energy Dissipation ◽  
Internal Energy ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Prompt Gamma ◽  
X Ray ◽  
Extended Emission

scholarly journals Gamma-Ray Burst Observations with BATSE

1998 ◽  
Vol 188 ◽  
pp. 159-162
Author(s):  
Gerald J. Fishman
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Gamma Ray Burst ◽  
New Era ◽  
X Ray ◽  
Time Profiles ◽  
Random Direction ◽  
Wide Range ◽  
New Phenomena

Gamma-ray bursts (GRBs) will be recorded as one of the outstanding new phenomena discovered in astronomy this century. About once per day, a burst of gamma rays appears from a random direction on the sky. Often, the burst outshines all other sources of gamma-rays in the sky, combined. This paper reviews some of the key observed phenomenon of bursts in the hard x-ray/gamma-ray region, as observed with the BATSE experiment on the Compton Gamma Ray Observatory. The observed time profiles, spectral properties and durations of gamma-ray bursts cover a wide range. Recent breakthroughs in the observation of gamma-ray burst counterparts and afterglows in other wavelength regions have marked the beginning of a new era in gamma-ray burst research. Those observations are described in following papers in these proceedings.

Development of a hard X-ray polarimeter for solar flares and gamma-ray bursts

1998 ◽  
Vol 45 (3) ◽  
pp. 910-914 ◽  
Author(s):  
M.L. McConnell ◽  
D.J. Forrest ◽  
J. Macri ◽  
M. McClish ◽  
M. Osgood ◽  
...  
Keyword(s):  
Solar Flares ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

scholarly journals A Satellite Experiment to Measure the Intensity and the Energy Spectrum of Gamma Rays from Solar Flares in the Range 50–500 MeV

1971 ◽  
Vol 41 ◽  
pp. 44-44
Author(s):  
G. F. Bignami ◽  
C. J. Bland ◽  
O. Citterio ◽  
A. J. Dean ◽  
P. Inzani
Keyword(s):  
Energy Spectrum ◽  
Solar Flare ◽  
Gamma Rays ◽  
Solar Flares ◽  
Gamma Ray ◽  
High Energy ◽  
Measurement Capability ◽  
Satellite Experiment

A high energy solar gamma-ray telescope incorporating a lenticular Čerenkov for directional measurement and an energy calorimeter is described. The instrument is included in the payload of the TD-1 ESRO spacecraft to be launched into a sun-pointing orbit during spring 1972. The results of laboratory and accelerator tests are presented and the sensitivity and measurement capability to solar flare gamma rays is discussed.

Development of a hard X-ray polarimeter for solar flares and gamma-ray bursts

2002 ◽  
Author(s):  
M.L. McConnell ◽  
D.J. Forrest ◽  
J. Macri ◽  
M. McClish ◽  
M. Osgood ◽  
...  
Keyword(s):  
Solar Flares ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

High Energy Transient Ionospheric Monitoring Network

1990 ◽  
Vol 8 (3) ◽  
pp. 263-265
Author(s):  
Paul J. Edwards
Keyword(s):  
Gravity Waves ◽  
Solar Flares ◽  
Gamma Ray ◽  
Monitoring Network ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Ionospheric Perturbations ◽  
X Ray ◽  
Radio Receivers ◽  
Computer Based

AbstractContinuous, wide sky coverage is essential for the detection and monitoring of infrequent, short-lived events of astrophysical interest such as supernova and nova explosions, variable X-ray sources, gamma ray bursts, gravity waves and stellar and solar flares. We propose to (1) examine past radio propagation records and (2) develop new computer based radio receivers to monitor and log ionospheric perturbations associated with these events.

scholarly journals Hard x-ray polarimeter for gamma-ray bursts and solar flares

2003 ◽  
Author(s):  
Mark L. McConnell ◽  
James Ledoux ◽  
John R. Macri ◽  
James M. Ryan
Keyword(s):  
Solar Flares ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

scholarly journals Possible X-Ray Counterparts to Gamma-Ray Bursts, GRB930131 and GRB940217

1998 ◽  
Vol 188 ◽  
pp. 459-460
Author(s):  
R. Shibata ◽  
T. Murakami ◽  
Y. Ueda ◽  
A. Yoshida ◽  
F. Tokanai ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Small Error ◽  
Gamma Ray Bursts ◽  
X Ray ◽  
High Energy Gamma ◽  
Energy Gamma

We made a search of quiescent X-ray counterparts of two Gamma-Ray Bursts (GRBs), GRB930131 and GRB940217. These GRBs were detected with BATSE, EGRET, COMPTEL on board CGRO together with the GRB detector on Ulysses spacecraft, then they were localized in small error regions. These observations showed that the bursts were remarkably bright accompanying delayed high energy gamma-rays. ASCA observations have found a single X-ray source for each GRB on the possible location determined with the above instruments.

scholarly journals Solar Hard X-Ray and Gamma-Ray Observations from GRANAT

1994 ◽  
Vol 142 ◽  
pp. 611-621
Author(s):  
N. Vilmer
Keyword(s):  
Gamma Rays ◽  
Solar Flares ◽  
Gamma Ray ◽  
Ground Level ◽  
High Energy ◽  
Angle Distribution ◽  
X Rays ◽  
X Ray ◽  
Electrons And Ions ◽  
Solar Bursts

AbstractHard X-rays and gamma-rays are the most direct signature of the energetic electrons and ions which are accelerated during solar flares. Since the beginning of 1990 the PHEBUS instrument and the SIGMA anticoincidence shield aboard GRANAT have provided hard X-ray and gamma-ray observations of solar bursts in the energy range 0.075-124 and 0.200-15 MeV, respectively. After a brief description of the experiments, we present some results obtained on solar bursts recorded in 1990 and 1991 June. Special emphasis is given to the results related with particle acceleration during solar flares.The first part of the review is devoted to the constraints obtained on the electron acceleration timescale through the analysis of the temporal characteristics of the bursts. Combined studies of hard X-ray and gamma-ray emissions from PHEBUS and radio emissions from the Nançay Multifrequency Radioheliograph are used to infer constraints on the coronal magnetic topology involved in flares. The characteristics (location, spectrum) of the radio-emitting sources are found to vary within a flare from one hard X-ray peak to the other. Hard X-ray and gamma-ray burst onsets and rapid increases of the > 10 MeV emission are coincident with changes in the associated radio emission pattern. These results will be discussed in the context of the flare energy release.The second part of the paper concerns the heliocentric angle distribution of > 10 MeV events and presents more detailed observations of some of the largest flares in the gamma-ray line and the high-energy domains produced by ultrarelativistic electrons and > 100 MeV nucleon−1 ions. The PHEBUS observations of the gamma-ray line flare of 11 June 1991 have been used to deduce the hardness of the accelerated ion spectrum. The link between the main part of the flare and the late long-lasting >50 MeV emission detected by EGRET/COMPTON is discussed. Finally some observations of the large 1990 May 24 flare which produced a large neutron event at ground level are presented.Subject headings: acceleration of particles — Sun: flares — Sun: radio radiation — Sun: X-rays, gamma rays

The X-ray luminosity function of short gamma-ray bursts

2021 ◽  
Vol 366 (4) ◽  
Author(s):  
Zhi-Ying Liu ◽  
Fu-Wen Zhang ◽  
Si-Yuan Zhu
Keyword(s):  
Luminosity Function ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray
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