scholarly journals SiCILIA—Silicon Carbide Detectors for Intense Luminosity Investigations and Applications

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2289 ◽  
Author(s):  
Salvatore Tudisco ◽  
Francesco La Via ◽  
Clementina Agodi ◽  
Carmen Altana ◽  
Giacomo Borghi ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Particle Physics ◽  
Nuclear Physics ◽  
Compound Semiconductor ◽  
Detection Systems ◽  
First Results ◽  
Project Structure ◽  
Beam Luminosity ◽  
Physics Experiments ◽  
Italian National Institute

Silicon carbide (SiC) is a compound semiconductor, which is considered as a possible alternative to silicon for particles and photons detection. Its characteristics make it very promising for the next generation of nuclear and particle physics experiments at high beam luminosity. Silicon Carbide detectors for Intense Luminosity Investigations and Applications (SiCILIA) is a project starting as a collaboration between the Italian National Institute of Nuclear Physics (INFN) and IMM-CNR, aiming at the realization of innovative detection systems based on SiC. In this paper, we discuss the main features of silicon carbide as a material and its potential application in the field of particles and photons detectors, the project structure and the strategies used for the prototype realization, and the first results concerning prototype production and their performance.

scholarly journals Silicon Carbide detectors for nuclear physics experiments at high beam luminosity

2018 ◽  
Vol 1056 ◽  
pp. 012032 ◽  
Author(s):  
G Litrico ◽  
S Tudisco ◽  
F La Via ◽  
C Altana ◽  
C Agodi ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Nuclear Physics ◽  
High Beam ◽  
Beam Luminosity ◽  
Physics Experiments

Measurements of Charge Collection Efficiency of p+/n Junction SiC Detectors

2005 ◽  
Vol 483-485 ◽  
pp. 1021-1024 ◽  
Author(s):  
Francesco Moscatelli ◽  
Andrea Scorzoni ◽  
Antonella Poggi ◽  
Mara Bruzzi ◽  
Stefano Lagomarsino ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Particle Physics ◽  
Collection Efficiency ◽  
Good Alternative ◽  
Beta Particle ◽  
Charge Collection ◽  
Reverse Voltage ◽  
Particle Radiation ◽  
Charge Collection Efficiency ◽  
Physics Experiments

Silicon carbide is a promising wide-gap material because of its excellent electrical and physical properties, which are very relevant to technological applications. In particular, silicon carbide can represent a good alternative to Si in applications like the inner tracking detectors of particle physics experiments [1]. In this work p+/n SiC diodes realized on a medium doped (1×1015 cm -3), 40 µm thick epitaxial layer are exploited as detectors and measurements of their charge collection properties under beta particle radiation from Sr90 source are presented. Preliminary results till 900 V reverse voltage show a good collection efficiency of 1700 e- and a collection length (ratio between collected charges and generated e-h pairs/µm) equal to the estimated width of the depleted region.

Silicon Carbide Power Diodes as Radiation Detectors

2006 ◽  
Vol 527-529 ◽  
pp. 1465-1468 ◽  
Author(s):  
Bernard F. Phlips ◽  
Karl D. Hobart ◽  
Francis J. Kub ◽  
Robert E. Stahlbush ◽  
Mrinal K. Das ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Energy Resolution ◽  
Particle Physics ◽  
Nuclear Physics ◽  
Radiation Detection ◽  
Radiation Detectors ◽  
Significant Loss ◽  
X Rays ◽  
X Ray ◽  
Power Diodes

We have tested the radiation detection performance of Silicon Carbide (SiC) PIN diodes originally developed as high power diodes. These devices consist of 100 micron thick SiC grown epitaxially on SiC substrates. The size and thickness of the devices make them appropriate for a number of radiation detection applications. We tested 0.25 cm2 and 0.5 cm2 devices and obtained X-ray spectra under illumination with an Am-241 radioactive source. The spectra showed an energy resolution that was consistent with the resolution expected for the large capacitance of the device. Smaller devices with a diameter of 1 mm were also tested and produced spectra with a room temperature energy resolution of ~550 eV, which is consistent with the electronics limit for the capacitance of the small device. We measured the absolute charge generated by X-rays per KeV in SiC by comparing the charge generation with similar silicon devices and determined the energy required per electron hole pair in SiC to be 8.4 eV. We also performed radiation damage tests on these devices and found no significant loss in charge collection up to a photon dose of 100 MRad. Applications for these devices can be found in the fields of particle physics, nuclear physics, nuclear medicine, X-ray fluorescence, X-ray astronomy and X-ray navigation.

scholarly journals MICROMEGAS calibration for ACTAR TPC

2018 ◽  
Vol 174 ◽  
pp. 01010 ◽  
Author(s):  
B. Mauss ◽  
T. Roger ◽  
J. Pancin ◽  
S. Damoy ◽  
G. F. Grinyer
Keyword(s):  
Nuclear Physics ◽  
Time Projection Chamber ◽  
Energy Deposition ◽  
Nuclear Reactions ◽  
Thick Target ◽  
Reaction Products ◽  
Detection Systems ◽  
Electron Collection ◽  
Time Projection ◽  
Physics Experiments

Active targets, such as the ACtive TARget and Time Projection Chamber (ACTAR TPC) being developed at GANIL, are detection systems that operate on the basis of a time projection chamber but where the filling gas also serves as a thick target for nuclear reactions. In nuclear physics experiments, the energy resolution is of primary importance to identify the reaction products and to precisely reconstruct level schemes of nuclei. These measurements are based on the energy deposited on a pixelated pad plane. A MICROMEGAS detector is used in ACTAR TPC for the ionization electron collection and amplification, and it is a major contributor to the energy dispersion through, for example, inhomogeneities of the amplification gap. A variation of one percent in the gap can lead to an amplitude variation of more than two percent which is of the same order as the resolution obtained with an energy deposition of 5 MeV. One way to calibrate the pad plane is through the use of a two dimensional source scanning table. It is used to calibrate the gain inhomogeneities and, using MAGBOLTZ calculations, deduce the corresponding gap variations. The inverse of this method would allow the relative gain variations to be calculated for the different gas mixtures and pressures used in experiments with ACTAR TPC.

scholarly journals The NUMEN Project: Toward New Experiments with High-Intensity Beams

Universe ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 72
Author(s):  
Clementina Agodi ◽  
Antonio D. Russo ◽  
Luciano Calabretta ◽  
Grazia D’Agostino ◽  
Francesco Cappuzzello ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
High Intensity ◽  
Particle Physics ◽  
Nuclear Physics ◽  
High Sensitivity ◽  
Experimental Information ◽  
Double Charge Exchange ◽  
Superconducting Cyclotron ◽  
Double Charge

The search for neutrinoless double-beta (0νββ) decay is currently a key topic in physics, due to its possible wide implications for nuclear physics, particle physics, and cosmology. The NUMEN project aims to provide experimental information on the nuclear matrix elements (NMEs) that are involved in the expression of 0νββ decay half-life by measuring the cross section of nuclear double-charge exchange (DCE) reactions. NUMEN has already demonstrated the feasibility of measuring these tiny cross sections for some nuclei of interest for the 0νββ using the superconducting cyclotron (CS) and the MAGNEX spectrometer at the Laboratori Nazionali del Sud (LNS.) Catania, Italy. However, since the DCE cross sections are very small and need to be measured with high sensitivity, the systematic exploration of all nuclei of interest requires major upgrade of the facility. R&D for technological tools has been completed. The realization of new radiation-tolerant detectors capable of sustaining high rates while preserving the requested resolution and sensitivity is underway, as well as the upgrade of the CS to deliver beams of higher intensity. Strategies to carry out DCE cross-section measurements with high-intensity beams were developed in order to achieve the challenging sensitivity requested to provide experimental constraints to 0νββ NMEs.

scholarly journals Programmable combinational logic trigger system for high energy particle physics experiments

1977 ◽  
Vol 140 (3) ◽  
pp. 549-552 ◽  
Author(s):  
E.D. Platner ◽  
A. Etkin ◽  
K.J. Foley ◽  
J.H. Goldman ◽  
W.A. Love ◽  
...  
Keyword(s):  
Particle Physics ◽  
High Energy ◽  
High Energy Particle ◽  
Combinational Logic ◽  
Trigger System ◽  
Energy Particle ◽  
Physics Experiments

scholarly journals PROBING GRAVITATIONAL INTERACTIONS OF ELEMENTARY PARTICLES

2004 ◽  
Vol 13 (10) ◽  
pp. 2355-2359 ◽  
Author(s):  
JONATHAN L. FENG ◽  
ARVIND RAJARAMAN ◽  
FUMIHIRO TAKAYAMA
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Particle Physics ◽  
Gravitational Constant ◽  
Planck Scale ◽  
Elementary Particles ◽  
Supersymmetric Particle ◽  
Small Scales ◽  
Physics Experiments ◽  
Shed Light

The gravitational interactions of elementary particles are suppressed by the Planck scale M*~1018 GeV and are typically expected to be far too weak to be probed by experiments. We show that, contrary to conventional wisdom, such interactions may be studied by particle physics experiments in the next few years. As an example, we consider conventional supergravity with a stable gravitino as the lightest supersymmetric particle. The next-lightest supersymmetric particle (NLSP) decays to the gravitino through gravitational interactions after about a year. This lifetime can be measured by stopping NLSPs at colliders and observing their decays. Such studies will yield a measurement of Newton's gravitational constant on unprecedentedly small scales, shed light on dark matter, and provide a window on the early universe.

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