Wide energy range gamma-ray calibration source

The ARGO-YBJ experiment has been gathering data steadily since November 2007 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300m a.s.l., 606 g/cm2). ARGO-YBJ is confronting various open problems in Cosmic Ray (CR) physics. The search for CR sources is carried out by observing TeV gamma-ray sources, both galactic and extra-galactic. The CR spectrum, composition and anisotropy are measured in a wide energy range (TeV ÷ PeV), thus overlapping direct measurements for the first time. This paper summarizes the current status of the experiment and describes some of the scientific highlights since 2007.

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Spline and polynomial models of the efficiency function for Ge gamma-ray detectors in a wide energy range

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-005-0807-5 ◽

2005 ◽

Vol 265 (2) ◽

pp. 175-179 ◽

Cited By ~ 8

Author(s):

T. Belgya

Keyword(s):

Energy Range ◽

Gamma Ray ◽

Wide Energy Range ◽

Efficiency Function ◽

Gamma Ray Detectors ◽

Wide Energy ◽

Polynomial Models

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Main physics results of the ARGO-YBJ experiment

International Journal of Modern Physics D ◽

10.1142/s0218271814300195 ◽

2014 ◽

Vol 23 (09) ◽

pp. 1430019 ◽

Cited By ~ 5

Author(s):

Giuseppe Di Sciascio

Keyword(s):

Energy Range ◽

High Altitude ◽

Duty Cycle ◽

Gamma Ray ◽

Cosmic Ray ◽

Wide Energy Range ◽

Astroparticle Physics ◽

Gamma Ray Astronomy ◽

Wide Range ◽

Wide Energy

The ARGO-YBJ experiment has been in stable data taking for more than 5 years at the YangBaJing Cosmic Ray Observatory (Tibet, P. R. China, 4300 m a.s.l., 606 g/cm2). With a duty-cycle greater than 86%, the detector collected about 5 × 1011 events in a wide energy range, from few hundred GeV up to about 10 PeV. High altitude location and detector features make ARGO-YBJ capable of investigating a wide range of important issues in Cosmic Ray and Astroparticle Physics by imaging the front of atmospheric showers with unprecedented resolution and detail. In this paper, the main physics results in gamma-ray astronomy and in cosmic ray physics are summarized.

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ARGO-YBJ: Highlights and Prospects

Acta Polytechnica CTU Proceedings ◽

10.14311/app.2014.01.0151 ◽

2014 ◽

Vol 1 (1) ◽

pp. 151-156

Author(s):

Giuseppe Di Sciascio

Keyword(s):

Energy Range ◽

Duty Cycle ◽

Gamma Ray ◽

Cosmic Ray ◽

Wide Energy Range ◽

Chinese Community ◽

Open Problems ◽

Gamma Ray Astronomy ◽

Wide Energy

The ARGO-YBJ experiment has been in stable data taking for 5 years at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm2). With a duty-cycle greater than 86% the detector collected about 51011 events in a wide energy range, from few hundreds GeV up to the PeV. A number of open problems in cosmic ray physics has been faced exploiting dierent analyses. In this paper we summarize the last results in gamma-ray astronomy and in the cosmic ray physics and introduce the LHAASO project, mainly driven by the Chinese community, to study the cosmic ray physics up to 1017 eV.

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Extensive theoretical study of gamma-ray shielding parameters using epoxy resin-metal chloride mixtures

Nuclear Technology and Radiation Protection ◽

10.2298/ntrp2002138m ◽

2020 ◽

Vol 35 (2) ◽

pp. 138-149

Author(s):

Chaitali More ◽

Pravina Pawar ◽

Mohamed Badawi ◽

Abouzeid Thabet

Keyword(s):

Energy Range ◽

Epoxy Resin ◽

Nuclear Power ◽

Power Plants ◽

Gamma Ray ◽

Wide Energy Range ◽

Metal Chlorides ◽

Polymer Properties ◽

Lead Metal ◽

Wide Energy

Gamma-ray detection and studying its interactions with matter is very important and serves in many fields of research. Besides, investigation of new shielding materials against gamma-ray will provide a lot of solutions for several problems accompanied by the presence of radiation sources in wide areas of applications, such as industry, medicine, agriculture, research laboratories, and nuclear power plants. In the present work, different gamma-ray attenuation parameters will be calculated theoretically using different metal chlorides mixed with epoxy resin polymers at different weight ratios. These attenuation parameters were calculated in a wide energy range started from 0.05 up to 3 MeV. This wide energy range covers almost the most known radionuclide gamma-ray energies. The obtained results were compared with pure epoxy resin polymer to show how well the modification of polymer properties was when mixed with other materials. Also, all mixture's attenuation parameters results were compared with lead metal results to check its validity as a gamma-ray shielding material. The obtained results found to be promising and the presented materials can be used instead of lead metal as an effective material in radiation protection.

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