# IEEE Transactions on Nuclear Science

## Volume 55 Issue 3  Part 2 • June 2008

This issue contains several parts.Go to:  Part 1  | Part 3

## Filter Results

Displaying Results 1 - 25 of 110
• ### [Front cover]

Publication Year: 2008, Page(s): C1
| PDF (72 KB)
• ### IEEE Transactions on Nuclear Science publication information

Publication Year: 2008, Page(s): C2
| PDF (39 KB)

Publication Year: 2008, Page(s):1029 - 1033
| PDF (130 KB)
• ### Editorial Conference Comments by the Editors

Publication Year: 2008, Page(s): 1034
| PDF (20 KB) | HTML
• ### Scintillator Materials—Achievements, Opportunities, and Puzzles

Publication Year: 2008, Page(s):1035 - 1041
Cited by:  Papers (48)
| | PDF (889 KB) | HTML

Participation of shallow and deep traps in the processes of energy transfer and capture is studied by means of time- resolved emission spectroscopy and thermoluminescence in several groups of the Ce3+ and Pr3+-doped complex oxide single crystal scintillators. Tunnelling-driven recombination processes are distinguished in all the groups of examined materials: closely spaced el... View full abstract»

• ### Data-Driven Exploration of the Ionization-Phonon Partitioning in Scintillating Radiation Detector Materials

Publication Year: 2008, Page(s):1042 - 1048
Cited by:  Papers (1)
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An information-based approach to scintillating materials development has been applied to ranking the alkali halide and alkaline earth halide series in terms of their energy conversion efficiency. The efficiency of scintillating radiation detection materials can be viewed as the product of a consecutive series of electronic processes (energy conversion, transfer, and luminescence) as outlined by Le... View full abstract»

• ### Scintillator Non-Proportionality: Present Understanding and Future Challenges

Publication Year: 2008, Page(s):1049 - 1053
Cited by:  Papers (52)  |  Patents (1)
| | PDF (494 KB) | HTML

Scintillator non-proportionality (the fact that the conversion factor between the energy deposited in a scintillator and the number of visible photons produced is not constant) has been studied both experimentally and theoretically for ~50 years. Early research centered on the dependence of the conversion factor on the species of the ionizing radiation (gamma, alpha, beta, proton, etc.), and resea... View full abstract»

• ### From Luminescence Non-Linearity to Scintillation Non-Proportionality

Publication Year: 2008, Page(s):1054 - 1061
Cited by:  Papers (45)
| | PDF (211 KB) | HTML

The problem of non-linearity of luminescence is reviewed on the basis of kinetic equations for concentrations and two-particle correlation functions. The reasons of time dependence of the rates of reactions between excitations are discussed. The non-linearity of luminescence and non-exponentiality of its decay is attributed to initial correlation between excitations created by photons, and to non-... View full abstract»

• ### Energy Resolution of Scintillation Detectors—New Observations

Publication Year: 2008, Page(s):1062 - 1068
Cited by:  Papers (31)
| | PDF (220 KB) | HTML

According to the present knowledge, the non-proportionality of the light yield of scintillators appears to be the fundamental limitation of energy resolution. However, several observations collected in the last 10 years on the influence of slow components of the light pulses on energy resolution suggest more complex processes in the scintillators. This was observed with CsI(Tl), ZnSe(Te), undoped ... View full abstract»

• ### Non-Proportionality of Organic Scintillators and BGO

Publication Year: 2008, Page(s):1069 - 1072
Cited by:  Papers (17)
| | PDF (719 KB) | HTML

According to the present knowledge the non-proportionality of the light yield of scintillators appears to be the fundamental limitation of energy resolution. Thus, the understanding of its origin is of the great importance for a development of new scintillators with enhanced energy resolution. In this respect, the non-proportional response of the typical organic scintillators was studied in compar... View full abstract»

• ### Performance of a Facility for Measuring Scintillator Non-Proportionality

Publication Year: 2008, Page(s):1073 - 1078
Cited by:  Papers (32)
| | PDF (1277 KB) | HTML

We have constructed a second-generation Compton coincidence instrument, known as the Scintillator Light Yield Non-proportionality Characterization Instrument (SLYNCI), to characterize the electron response of scintillating materials. While the SLYNCI design includes more and higher efficiency HPGe detectors than the original apparatus (five 25%-30% detectors versus one 10% detector), the most nove... View full abstract»

• ### Electron-Hole Pairs Created by Photons and Intrinsic Properties in Detector Materials

Publication Year: 2008, Page(s):1079 - 1085
Cited by:  Papers (12)
| | PDF (420 KB) | HTML

A Monte Carlo (MC) code has been developed to simulate the interaction of gamma-rays with semiconductors and scintillators, and the subsequent energy partitioning of fast electrons. The results provide insights on the processes involved in the electron-hole pair yield and intrinsic variance through simulations of full electron energy cascades. The MC code has been applied to simulate the productio... View full abstract»

• ### Advances in Yield Calibration of Scintillators

Publication Year: 2008, Page(s):1086 - 1092
Cited by:  Papers (105)
| | PDF (325 KB) | HTML

By means of a photomultiplier tube, a Si-photodiode, and a Si-avalanche photodiode, the absolute scintillation yield of recently developed LaBr3:Ce, LaCl3:Ce, and (Lu,Y)2SiO5:Ce scintillators and traditional Lu2SiO5:Ce, Bi4Ge3O12, NaI:Tl, CsI:Tl, and CsI:Na scintillators were determined. These are al... View full abstract»

• ### A Concept for a Compton Effect Based Dosimeter Calibration System

Publication Year: 2008, Page(s):1093 - 1096
Cited by:  Papers (1)
| | PDF (492 KB) | HTML

Detectors and dosimeters are used all over the world for monitoring and detection of radiation. As an estimate device for worker's exposure, a dosimeter must go through a well determined calibration process in a radiation calibration facility, according to international standards. The most common way of calibration is to expose the dosimeter to several mono energy sources, like 241Am or... View full abstract»

• ### Evaluate Scintillation Response Over a Continuous Energy Region

Publication Year: 2008, Page(s):1097 - 1101
Cited by:  Papers (6)
| | PDF (550 KB) | HTML

A recently developed fast analysis technique utilizing a time of flight (TOF) telescope is demonstrated to obtain relevant quantitative data on material scintillation response to energetic He particles. With the superior energy resolution and fast response of the TOF telescope, the energy of individual particles before impinging on a scintillator crystal can be determined with a high count rate, a... View full abstract»

• ### Probing the Concepts of Photonic Crystals on Scintillating Materials

Publication Year: 2008, Page(s):1102 - 1106
Cited by:  Papers (29)  |  Patents (2)
| | PDF (568 KB) | HTML

The high refractive index of current scintillating materials puts severe restrictions on their effective light yield. In this paper, we describe an approach that uses a photonic crystal pattern machined into the coupling face of the scintillator to partly overcome the problem of total internal reflection. Simulations are performed for 2 mm times 2 mm times 8 mm LuAP and LSO pixels with and without... View full abstract»

• ### Comparison of Cathodoluminescent and Photoluminescent Emission Spectra of ${rm LuPO} _{4}$ With Europium, Erbium, and Neodymium Dopants

Publication Year: 2008, Page(s):1107 - 1110
Cited by:  Papers (1)
| | PDF (154 KB) | HTML

The current interest in returning human exploration to the Moon and Mars makes cost-effective and low-mass health monitoring sensors essential for spacecraft development. In space, there are many surface measurements that are required to monitor the condition of the spacecraft including: surface temperature, radiation dose, and impact. Through the use of tailored phosphors, these conditions can be... View full abstract»

• ### Transfer and Trapping of Electrons in the Crystals ${rm CaF}_{2}-{rm O}^{2-}$ and ${rm CaF}_{2}-{rm Eu}$ by the Low-Energy Impurity Excitation

Publication Year: 2008, Page(s):1111 - 1113
Cited by:  Papers (2)
| | PDF (114 KB) | HTML

Dipole centers Eu3+-Fi - and O2--Valpha + were investigated as the centers trapping electrons. We investigated the ionic processes (orientation TDP) and the electronic processes induced by the laser excitation of samples at low temperature in the electric field (electronic TDP). It was found that the parameters of electronic and ion... View full abstract»

• ### Shallow Traps in ${rm YAlO}_{3}:{rm Ce}$ Single Crystal Perovskites

Publication Year: 2008, Page(s):1114 - 1117
Cited by:  Papers (15)
| | PDF (367 KB) | HTML

The aim of this work is to investigate the influence of shallow traps on scintillating properties of YAlO3:Ce. Wavelength-resolved thermally stimulated luminescence measurements following X-ray irradiation at 10 K have been performed on both undoped and Ce-doped crystals. Different and composite glow curves and emission spectra were obtained. Following glow peaks analysis of YAlO3<... View full abstract»

• ### EPR and Luminescence of ${hbox {F}}^{+}$ Centers in Bulk and Nanophosphor Oxyorthosilicates

Publication Year: 2008, Page(s):1118 - 1122
Cited by:  Papers (22)
| | PDF (1231 KB) | HTML

The main thermally stimulated luminescence glow peak in irradiated oxyorthosilicates occurs near 360-400 K and has been postulated to comprise an electron trapped at an oxygen vacancy (F+ center). We have used electron paramagnetic resonance spectroscopy to identify this defect in Ln2SiO5:Ce (Ln = Lu and Y) and show that it consists of a single electron trapped at ... View full abstract»

• ### Energy Dissipation in Impurity DopedAlkaline-Earth Fluorides

Publication Year: 2008, Page(s):1123 - 1127
Cited by:  Papers (2)
| | PDF (163 KB) | HTML

Excitation spectra of CaF2, SrF2 and BaF2 crystals doped by CdF2, LaF3, YF3 in the vacuum ultraviolet region were investigated at liquid-helium temperature and at room temperature. Spectra of doped BaF2 at low temperature and CaF2, SrF2 at room temperature show significant decrease of excitation inte... View full abstract»

• ### Modifications of Light Emission Spectra and Atomic Structure of Europium Molibdate Bulk Crystals Caused by High Pressure and Heat Treatment

Publication Year: 2008, Page(s):1128 - 1132
Cited by:  Papers (8)
| | PDF (1569 KB) | HTML

Essential enhancement of light emission ability of europium molybdate - Eu2(MoO4)3 (EMO) crystals has been achieved by combined application of high pressure (9 GPa) and heat treatment (a procedure was repeated from 3 to 25 times for different samples). Multifold increase in light emission of EMO single crystals can be achieved, without deterioration of the optical ... View full abstract»

• ### Impurity Luminescence in ${rm BaF} _{2}$:${rm Y} ^{3+}$ and ${rm BaF} _{2}$:${rm Yb}^{3+}$ Crystals

Publication Year: 2008, Page(s):1133 - 1137
Cited by:  Papers (2)
| | PDF (664 KB) | HTML

This paper presents both investigations of high-energy luminescence with maximum at 7.5 eV in BaF2:Y3+ and BaF2:Yb3+ crystals and theoretical calculations of cross-luminescence spectrum in crystals of barium fluoride with interstitial ions of fluorine. The dependencies of the 7.5 eV emission intensity as function of different impurities mol. concentratio... View full abstract»

• ### Excitation Energy Transfer in CeF$_{3}$ Single Crystals Doped With Sr$^{2+}$

Publication Year: 2008, Page(s):1138 - 1141
| | PDF (427 KB) | HTML

CeF3 single crystals heavily doped with Sr2+ ions are grown by the micro-pulling-down (mu-PD) method. The deviation of the composition in as-grown crystals is found to be entirely negligible. Three dimensional emission-excitation spectra are measured in a wide temperature range of 5-300 K by using synchrotron radiation as an exciting light source. Two intense emission bands a... View full abstract»

• ### Scintillation Response Comparison Among Ce-Doped Aluminum Garnets, Perovskites and Orthosilicates

Publication Year: 2008, Page(s):1142 - 1147
Cited by:  Papers (12)
| | PDF (431 KB) | HTML

This paper deals with some aspects of scintillation response of Ce-doped Y-Lu aluminum garnets or perovskites in comparison with Ce-doped orthosilicates. An essential difference between the Ce-doped aluminum garnets/perovskites and orthosilicates consists in larger fluctuations of photoelectron yield of the latter scintillators where differences can reach up to 50% and measured values critically d... View full abstract»

## Aims & Scope

IEEE Transactions on Nuclear Science focuses on all aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.

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## Meet Our Editors

Editor-in-Chief
Paul Dressendorfer
11509 Paseo del Oso NE
Albuquerque, NM  87111  USA