A small rugged imaging X-ray spectrometer: A lixiscope with good energy resolution

1980 ◽  
Vol 172 (3) ◽  
pp. 471-477 ◽  
Author(s):  
Lo I Yin ◽  
Jacob I. Trombka ◽  
Stephen M. Seltzer
Keyword(s):  
Energy Resolution ◽  
Good Energy Resolution ◽  
X Ray ◽  
Good Energy

scholarly journals Energy Response of Silicon Drift Detectors for Kaonic Atom Precision Measurements

2019 ◽  
Vol 4 (1) ◽  
pp. 31 ◽  
Author(s):  
Marco Miliucci ◽  
Mihail Iliescu ◽  
Aidin Amirkhani ◽  
Massimiliano Bazzi ◽  
Catalina Curceanu ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Precision Measurements ◽  
Energy Response ◽  
Good Energy Resolution ◽  
Large Area ◽  
Kaonic Atom ◽  
X Ray ◽  
Good Energy ◽  
Silicon Drift Detectors ◽  
Stable Linear

Novel, large-area silicon drift detectors (SDDs) have been developed to perform precision measurements of kaonic atom X-ray spectroscopy, for the study the K ¯ N strong interaction in the low-energy regime. These devices have special geometries, field configurations and read-out electronics, resulting in excellent performances in terms of linearity, stability and energy resolution. In this work the SDDs energy response in the energy region between 4000 eV and 12,000 eV is reported, revealing a stable linear response within 1 eV and good energy resolution.

Comparative Studies of the Light Yield Non-Proportionality and Energy Resolution of CsI(Tl), LYSO and BGO Scintillation Crystals

2016 ◽  
Vol 872 ◽  
pp. 266-270
Author(s):  
Pruittipol Limkitjaroenporn ◽  
Narong Sangwaranatee ◽  
Wuttichai Chaiphaksa ◽  
Jakrapong Kaewkhao
Keyword(s):  
Energy Resolution ◽  
Comparative Studies ◽  
Gamma Ray ◽  
Light Yield ◽  
Good Energy Resolution ◽  
Intrinsic Resolution ◽  
Scintillation Crystals ◽  
Good Energy ◽  
Better Than

This article, for comparison, the non-proportionality of light yield and energy resolution of BGO, LYSO and CsI(Tl) scintillators couple to the R1306 PMT readouts were investigated. At 662 keV from 137Cs source, the good energy resolution of 7.13% for CsI(Tl) superior than LYSO and BGO scintillators. The energy resolution on gamma-ray energy was also evaluated to expose the scintillator intrinsic resolution parameters. For non-proportionality of light yield, the study showed a light yield non-proportionality 0.35% of LYSO, the value is better than 4.82 % for CsI(Tl) and 1.53 % of BGO scintillators.

scholarly journals A Search for Levels of 7Li Between 9·0 and 9·55 MeV Excitation

1959 ◽  
Vol 12 (3) ◽  
pp. 231 ◽  
Author(s):  
KH Purser
Keyword(s):  
Cross Section ◽  
Energy Resolution ◽  
Resonance Structure ◽  
Good Energy Resolution ◽  
Good Energy ◽  
The Cross

The cross section of the reaction 6Li(n,3H)'He has been measured, with good energy resolution, over the neutron range 2�0--2�65 MeV. This corresponds to an excitation of 7Li from 9� 0 to 9� 55 MeV, a region in which photodisintegration experiments indicate the presence of one or more levels. No resonance structure was observed in this experiment and possible reasons for this are discussed.

scholarly journals ROSAT Observations of Active Galactic Nuclei

1994 ◽  
Vol 159 ◽  
pp. 53-62 ◽  
Author(s):  
W. Brinkmann
Keyword(s):  
Active Galactic Nuclei ◽  
Spectral Properties ◽  
Galactic Nuclei ◽  
High Sensitivity ◽  
Good Energy Resolution ◽  
Ongoing Research ◽  
X Ray ◽  
Sky Survey ◽  
Good Energy ◽  
First Time

The large number of Active Galactive Nuclei detected for the first time through their X-ray emission in the ROSAT All Sky Survey as well as the first measurements of the X-ray emission of many previously known AGN provide a new unprecedented large basis for the statistical and morphological exploration of these objects.The soft energy range of the X-Ray Telescope, the good energy resolution of the PSPC detector, and the high sensitivity of the instrument further allows an investigation of the spectral properties of sources in this energetically important energy band.A short overview is given of the actual ongoing research concentrating on the study of the soft X-ray class properties of the various types of AGN.

An Approach to Sub-Pixel Spatial Resolution in Room Temperature X-Ray Detector Arrays with Good Energy Resolution

1997 ◽  
Vol 487 ◽  
Author(s):  
W. K. Warburton
Keyword(s):  
Spatial Resolution ◽  
Energy Resolution ◽  
Hole Transport ◽  
Energy Estimates ◽  
Weighted Sums ◽  
X Rays ◽  
Simple Analysis ◽  
Detector Arrays ◽  
X Ray ◽  
Good Energy

AbstractIn this paper we examine a recently proposed concept for obtaining sub-pixel spatial resolution in compound semiconductors where hole transport properties are relatively poor. [1] This approach uses weighted sums and differences of local pixel signals to extract both accurate x-ray energy estimates and interpolate location at the sub-pixel level. A simple analysis, including noise estimates, suggests the possibility of obtaining locations at the 50–100 micron level using 1–2 mm wide stripe electrodes while obtaining 1–2% energy resolution for x-rays up to 100 keV. Following this examination, we will present the most recent experimental results from our program to develop electronics to implement this scheme.

Scintillation Properties of Ce-Doped LuYAP Crystal for Gamma Ray Detection

2015 ◽  
Vol 804 ◽  
pp. 93-96
Author(s):  
Akapong Phunpueok ◽  
Voranuch Thongpool ◽  
Weerapong Chewpraditkul
Keyword(s):  
Energy Resolution ◽  
Gamma Ray ◽  
Light Yield ◽  
High Energy ◽  
Stopping Power ◽  
Strongly Correlated ◽  
Photon Yield ◽  
Good Energy Resolution ◽  
Intrinsic Resolution ◽  
Good Energy

In the present day, inorganic scintillating crystals become a main part in detection and spectroscopy of nuclear particles and high energy photons, more spectively in X/g-ray imaging. The good properties for the scintillating crystals used in these applications require high photon yield, high stopping power, good energy resolution, good light yield proportionality, and minimal afterglow. The main useful of Ce-doped Lu0.7Y0.3AlO3 (LuYAP(Ce)) are high stopping power and non-hygroscopic which are expected to be key ingredients for medical imaging. In this work, we studied the light yield non-proportionality and energy resolution of LuYAP(Ce) crystal with the energy range from 31 to 1,274.5 keV using photomultiplier tube (PMT) readout. The intrinsic resolution of the LuYAP(Ce) crystal has been determined after correcting the measured PMT resolution. The results showed that the non-proportional response of the crystals was strongly correlated with the intrinsic resolution of the crystals.

Novel Equipment for In Situ Alpha Spectrometry with Good Energy Resolution

2015 ◽  
Vol 109 (6) ◽  
pp. 601-605 ◽  
Author(s):  
Roy Pöllänen ◽  
Jani Turunen ◽  
Tero Karhunen ◽  
Kari Peräjärvi ◽  
Teemu Siiskonen ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Alpha Spectrometry ◽  
Good Energy Resolution ◽  
Good Energy

Comparison of Scintillation Light Yield of CWO and BGO Single Crystals for Gamma Ray Detection

2020 ◽  
Vol 901 ◽  
pp. 89-94
Author(s):  
Akapong Phunpueok ◽  
Voranuch Thongpool ◽  
Sarawut Jaiyen ◽  
Hua Shu Hsu
Keyword(s):  
Energy Resolution ◽  
Gamma Ray ◽  
Radiation Detection ◽  
Light Yield ◽  
Stopping Power ◽  
Good Energy Resolution ◽  
Scintillation Light ◽  
Radioactive Materials ◽  
Yield Value ◽  
Good Energy

Nowadays, radioactive materials are being applied in medical imaging. Because humans cannot observe radiation, radiation detection materials are very important to humans. A scintillator is a material that can change gamma photons to visible photons. Good scintillators should have the following properties: high scintillation light yield, good energy resolution, and high density. In this work, the scintillation light yield property of CWO crystals was studied due to its interesting properties, such as high stopping power and low hygroscopicity. CWO crystals were compared with BGO crystals. From the results, it was found that the BGO crystals showed higher scintillation light yield value at 662 keV energy from 137Cs radioactive source than the CWO crystals, resulting in better energy resolution value. The intrinsic light yield and loss parameters for both crystals are also presented in this work.

Gamma-ray line investigations with the Durham y-ray spectrometer

1981 ◽  
Vol 301 (1462) ◽  
pp. 687-691 ◽  
Keyword(s):  
Solid State ◽  
Neutron Stars ◽  
Energy Resolution ◽  
Gamma Ray ◽  
Seyfert Galaxies ◽  
Observation Time ◽  
Galactic Centre ◽  
Good Energy Resolution ◽  
Good Energy ◽  
Balloon Experiments

The study of y-ray lines of astrophysical origin has become more interesting with the introduction of cooled solid state detectors having a very good energy resolution, 1-2 keV at 100 keV, and ca. 2-3 keV around 1 MeV. Some of the single crystal spectrometers currently in use in y-ray astronomy are capable of detecting lines with intensities 3 x 10 -3 ph cm -2 s -1 when used on balloon experiments. This is close to the y-ray intensities predicted from some celestial y-ray sources. Knowing the y-ray background precisely and with a reasonable although lengthy observation time it should be possible to detect lines from candidate celestial sources, for example neutron stars, Seyfert galaxies or the galactic centre.

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