Study on TlBr Radioactive Detector

2017 ◽  
Author(s):  
He Li-xia ◽  
Hao Xiao-yong ◽  
He Gao-kui
Keyword(s):  
Room Temperature ◽  
High Energy Physics ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Nuclear Material ◽  
High Energy ◽  
High Detection ◽  
High Detection Efficiency ◽  
Excellent Energy Resolution ◽  
Energy Physics

TlBr is a kind of semiconductor material. Due to its promising physical properties and can be used at room temperature, it is continually studied as X and gamma ray detectors candidate material. Both of its atomic number and density are high. It also has large band-gap (B = 2.68eV) and low ionization energy. TlBr device exhibits high detection efficiency and excellent energy resolution. It can be easily fabricated or compacted in small housing. So it is a reasonable selection in the fields of nuclear material inspection and safeguards property, national security, spatial and high energy physics researches. The paper investigates the TlBr radioactive detector development and fabrication procedures. The processing detail information and signals collection are emphasized in different section. The prototype detectors were irradiated by Am-241 and corresponding spectrum was obtained. The photoelectric peak at 59.5keV is distinguished visible and the best resolution at 59.5keV is 4.15keV (7%).

scholarly journals A novel technique to detect special nuclear material using cosmic rays

2012 ◽  
Vol 1 (2) ◽  
pp. 235-238 ◽  
Author(s):  
C. Thomay ◽  
P. Baesso ◽  
D. Cussans ◽  
J. Davies ◽  
P. Glaysher ◽  
...  
Keyword(s):  
High Energy Physics ◽  
Detection Efficiency ◽  
Rate Capability ◽  
Target Volume ◽  
Nuclear Material ◽  
High Energy ◽  
Muon Scattering ◽  
Intrinsic Resolution ◽  
Good Spatial Resolution ◽  
Energy Physics

Abstract. Resistive plate chambers (RPCs) are widely used in high energy physics for both tracking and triggering purposes, due to their excellent time resolution, rate capability, and good spatial resolution. RPCs can be produced cost-effectively on large scales, are of rugged build, and have excellent detection efficiency for charged particles. Our group has successfully built a muon scattering tomography (MST) prototype, using 12 RPCs to obtain tracking information of muons going through a target volume of ∼ 50 cm × 50 cm × 70 cm, reconstructing both the incoming and outgoing muon tracks. The required spatial granularity is achieved by using 330 readout strips per RPC with 1.5 mm pitch. The RPCs have shown an efficiency above 99% and an estimated intrinsic resolution below 1.1 mm. Due to these qualities, RPCs serve as excellent candidates for usage in volcano radiography.

Study on Thallium Bromide Radioactive Detector

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
He Li-xia ◽  
Hao Xiao-yong ◽  
He Gao-kui
Keyword(s):  
High Energy Physics ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Nuclear Material ◽  
High Energy ◽  
Device Fabrication ◽  
Signal Acquisition ◽  
X Ray ◽  
Thallium Bromide ◽  
And Performance

Thallium bromide (TlBr) is a compound semiconductor material, which can be used for X-ray and gamma-ray detectors and can be used at room temperature. It has excellent physical properties, high atomic number and density, wide bandgap (B = 2.68 eV), and low ionization energy. Compared with other X-ray and gamma-ray detection materials, TlBr devices have high detection efficiency and excellent energy resolution performance. So TlBr is suitable for housing in small tubes or shells, and it can be widely used in nuclear material measurement, safeguards verification, national security, space high-energy physics research, and other fields. Based on the fabrication of TlBr prototype detector, this paper focuses on the device fabrication and signal acquisition technology. Gamma-ray spectrum measurements and performance tests are carried out with AM-241 radioactive source. The results show that the special photoelectric peak of 59.5 keV is clearly visible, and the optimal resolution is 4.15 keV (7%).

Investigation of parameters of new MAPD-3NM silicon photomultipliers

2022 ◽  
Vol 17 (01) ◽  
pp. C01001
Author(s):  
F. Ahmadov ◽  
G. Ahmadov ◽  
R. Akbarov ◽  
A. Aktag ◽  
E. Budak ◽  
...  
Keyword(s):  
High Energy Physics ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
High Energy ◽  
Efficiency Gain ◽  
Space Application ◽  
Silicon Photomultipliers ◽  
Photon Detection ◽  
Photon Detection Efficiency ◽  
Energy Physics

Abstract In the presented work, the parameters of a new MAPD-3NM-II photodiode with buried pixel structure manufactured in cooperation with Zecotek Company are investigated. The photon detection efficiency, gain, capacitance and gamma-ray detection performance of photodiodes are studied. The SPECTRIG MAPD is used to measure the parameters of the MAPD-3NM-II and scintillation detector based on it. The obtained results show that the newly developed MAPD-3NM-II photodiode outperforms its counterparts in most parameters and it can be successfully applied in space application, medicine, high-energy physics and security.

scholarly journals Potentialities of the future technical improvements in the search of rare nuclear decays by bolometers

2018 ◽  
Vol 33 (09) ◽  
pp. 1843003 ◽  
Author(s):  
Fabio Bellini
Keyword(s):  
Nuclear Physics ◽  
Detection Efficiency ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Particle Identification ◽  
X Ray ◽  
High Detection ◽  
High Detection Efficiency ◽  
Hybrid Devices ◽  
Excellent Energy Resolution

Bolometers are cryogenic calorimeters which feature excellent energy resolution, low energy threshold, high detection efficiency, flexibility in choice of materials, particle identification capability if operated as hybrid devices. After 30 years of rapid progresses, they represent nowadays a leading technology in several fields: particle and nuclear physics, X-ray astrophysics, cosmology. However, further and substantial developments are required to increase the sensitivity to the levels envisioned by future researches. A review of the challenges to be addressed and potentialities of bolometers in the search for rare nuclear decays is given, with particular emphasis to the neutrinoless double beta decay physics case.

scholarly journals Synergy SKA - CTA: Supernova remnants as cosmic accelerators

2017 ◽  
Vol 12 (S331) ◽  
pp. 345-350
Author(s):  
Adriano Ingallinera ◽  
Corrado Trigilio ◽  
Grazia Umana ◽  
Paolo Leto ◽  
Carla Buemi ◽  
...  
Keyword(s):  
Supernova Remnants ◽  
High Energy Physics ◽  
High Efficiency ◽  
Gamma Ray ◽  
High Energy ◽  
Good Test ◽  
Wide Range ◽  
Tight Connection ◽  
Preparation Work ◽  
Energy Physics

AbstractSupernova remnants (SNRs) are one of the most important sites where particles are accelerated with high efficiency and in a wide range of energies, becoming an important component of cosmic rays. A good test for this hypothesis will be possible using the data collected by next-generation radio and gamma-ray observatories, like the Square Kilometre Array (SKA) and the Cherenkov Telescope Array (CTA). Radio emission is fundamental to explore the SNR environment and to shed light on the physical processes involved in particle acceleration, providing direct links to high-energy physics. Two cases of SNRs recently studied in radio are presented, showing the importance of high-resolution radio images. An overview of SKA and its precursors is given with our ongoing preparation work. In particular, we present the EMU survey and the pathfinder project SCORPIO. Finally a direct view of the tight connection between SKA and CTA future studies of SNRs is provided.

scholarly journals Resistive plate chambers for tomography and radiography

2012 ◽  
Vol 2 (2) ◽  
pp. 657-670 ◽  
Author(s):  
C. Thomay ◽  
P. Baesso ◽  
D. Cussans ◽  
J. Davies ◽  
P. Glaysher ◽  
...  
Keyword(s):  
High Energy Physics ◽  
Detection Efficiency ◽  
Rate Capability ◽  
Target Volume ◽  
High Energy ◽  
Muon Scattering ◽  
Intrinsic Resolution ◽  
Good Spatial Resolution ◽  
Resistive Plate Chambers ◽  
Energy Physics

Abstract. Resistive Plate Chambers (RPCs) are widely used in high energy physics for both tracking and triggering purposes, due to their excellent time resolution, rate capability, and good spatial resolution. RPCs can be produced cost-effectively on large scales, are of rugged build, and have excellent detection efficiency for charged particles. Our group has successfully built a Muon Scattering Tomography (MST) prototype, using 12 RPCs to obtain tracking information of muons going through a target volume of ~ 50 cm × 50 cm × 70 cm, reconstructing both the incoming and outgoing muon tracks. The required spatial granularity is achieved by using 330 readout strips per RPC with 1.5 mm pitch. The RPCs have shown an efficiency above 99% and an estimated intrinsic resolution below 1.1 mm. Due to these qualities, RPCs provide excellent candidates for usage in volcano radiography.

scholarly journals Design and Tests of the Hard X-ray Polarimeter X-Calibur

2014 ◽  
Vol 1 (1) ◽  
pp. 293-297 ◽  
Author(s):  
M. Beilicke ◽  
R. Cowsik ◽  
P. Dowkontt ◽  
Q. Guo ◽  
F. Kislat ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Detection Efficiency ◽  
Grazing Incidence ◽  
High Energy ◽  
X Rays ◽  
Order Unity ◽  
Field Orientation ◽  
X Ray ◽  
New Information ◽  
High Detection Efficiency

X-ray polarimetry promises to give qualitatively new information bout high-energy astrophysical sources, such as binary black hole  systems, micro-quasars, active galactic nuclei, and gamma-ray bursts. We designed, built and tested ahard X-ray polarimeter, X-<em>Calibur</em>, to be used in the focal plane of the InFOCuS grazing incidence hard X-ray telescope.X-<em>Calibur</em> combines a low-Z Compton scatterer with a CZT detector assembly to measure the polarization of 20−60 keV X-rays making use of the fact that polarized photons Compton scatter preferentially perpendicular to the electric field orientation; in principal, a similar space-borne experiment could be operated in the 5−100 keV regime. X-<em>Calibur</em> achieves a high detection efficiency of order unity.

scholarly journals Time Resolution Measurements on SiPM for High Energy Physics Experiments

2020 ◽  
Vol 7 (1) ◽  
pp. 29-33
Author(s):  
L.M. Montano ◽  
M. Fontaine
Keyword(s):  
Time Resolution ◽  
High Energy Physics ◽  
Detection Efficiency ◽  
Single Photon ◽  
Detection System ◽  
Radiation Detector ◽  
High Energy ◽  
New Physics ◽  
Wide Range ◽  
Energy Physics

Scintillator detector have been used in a wide range of experiments in different areas: Nuclear and High Energy Physics, Medicine, and Radiation Security among others. It is common to use scintillator counters coupled to Photomultiplier Tubes (PMT) as a read out detectors. Nowadays, there has been a great interest in using the Silicon Photomultipliers (PMSi) as a replacement for PMT's due to their high photon detection efficiency (PDE) and their high single photon time resolution (SPTR). The fast the signal is detected, the whole detection system will be useful to search for new physics. PMSi is also known to have a good compactness, magnetic field resistance and low cost. In our lab we are measuring the time resolution of two different models of PMS in order to build a fast radiation detector system.

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