# IEEE Transactions on Nuclear Science

## Volume 55 Issue 4  Part 2 • Aug. 2008

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 27

Publication Year: 2008, Page(s):C1 - 2293
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• ### IEEE Transactions on Nuclear Science publication information

Publication Year: 2008, Page(s): C2
| PDF (37 KB)
• ### A Distributed Synchronization and Timing System on the EAST Tokamak

Publication Year: 2008, Page(s):2294 - 2297
Cited by:  Papers (8)
| | PDF (405 KB) | HTML

A key requirement for the EAST distributed control system (EASTDCS) is time synchronization to an accuracy of <1 mus. In 2006 a Distributed Synchronization and Timing System (DSTS) was set up, which is based on the ATmega128 AVR microcontroller and the Nut/OS embedded Real Time Operating System (RTOS). The DSTS provides the control and the data acquisition systems with reference clocks (0.01 Hz... View full abstract»

• ### Role of Gun Emittance to Build a Compact X-ray Free-Electron Laser Machine

Publication Year: 2008, Page(s):2298 - 2302
Cited by:  Papers (1)
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A currently typical X-ray free electron laser machine consists of a high energy linear accelerator that adopts a photo-cathode electron gun and a long undulator. Possibility of a compact X-ray free electron laser machine working at a low energy is discussed. This paper shows how it is possible by using lower emittance guns that are under development. View full abstract»

• ### Taguchi Based Performance and Reliability Improvement of an Ion Chamber Amplifier for Enhanced Nuclear Reactor Safety

Publication Year: 2008, Page(s):2303 - 2314
Cited by:  Papers (2)
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An ion chamber amplifier (ICA) is used as a safety device for neutronic power (flux) measurement in regulation and protection systems of nuclear reactors. Therefore, performance reliability of an ICA is an important issue. Appropriate quality engineering is essential to achieve a robust design and performance of the ICA circuit. It is observed that the low input bias current operational amplifiers... View full abstract»

• ### Low-Frequency Noise of Resistively Coupled Charge Amplifiers

Publication Year: 2008, Page(s):2315 - 2322
Cited by:  Papers (2)
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In resistive wire position sensitive neutron detector systems two charge sensitive preamp inputs are connected via the tube impedance. Due to this coupling the output noise increases significantly. This work investigates the behavior of that kind of coupling induced noise using a technique called "noise gain calculation". The output noise correlation is analyzed analytically. Attained results are ... View full abstract»

• ### Front-End ASIC for a Silicon Compton Telescope

Publication Year: 2008, Page(s):2323 - 2328
Cited by:  Papers (17)
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We describe a front-end application specific integrated circuit (ASIC) developed for a silicon Compton telescope. Composed of 32 channels, it reads out signals in both polarities from each side of a silicon strip sensor, 2 mm thick 27 cm long, characterized by a strip capacitance of 30 pF. Each front-end channel provides low-noise charge amplification, shaping with a stabilized baseline, discrimin... View full abstract»

• ### A Generic Surface Sampler for Monte Carlo Simulations

Publication Year: 2008, Page(s):2329 - 2333
Cited by:  Papers (2)
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We present a Monte Carlo algorithm that generates points randomly and uniformly on a set of arbitrary surfaces. The algorithm is completely general and only requires the geometry modeling software to provide the intersection points of an arbitrary line with the surface being sampled. We demonstrate the algorithm using the Geant4 Monte Carlo simulation toolkit. The efficiency of the sampling algori... View full abstract»

• ### Single-Electron Response Using a GEM-MIGAS Electron Multiplier

Publication Year: 2008, Page(s):2334 - 2340
Cited by:  Papers (8)
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A gas electron multiplier with a micro-induction gap amplifying structure (GEM-MIGAS) is formed when a conventional GEM is operated with a short induction gap, typically set at 50 mum. Experimental studies were carried out to investigate the single-electron response of a GEM-MIGAS, using a He/iso-C4H10 (85/15%) gas mixture operated in a flow mode at atmospheric pressure. The ... View full abstract»

• ### Single Photon Counting X-Ray Imaging System Using a Micro Hole and Strip Plate

Publication Year: 2008, Page(s):2341 - 2345
Cited by:  Papers (21)
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A Xe-based single photon counting X-ray imaging system, based on a micro-hole & strip plate (MHSP), using a resistive charge division method was implemented. The MHSP is a hybrid microstructure that combines in a single element the features of the gas electron multiplier (GEM) and the micro-strip gas chamber (MSGC), presenting two charge multiplication stages. For 2D-imaging, the GEM-like side... View full abstract»

• ### Physics and Detectors for the International Linear Collider

Publication Year: 2008, Page(s):2346 - 2351
Cited by:  Papers (2)
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Development of a precise theory of the electroweak interaction was a great achievement of Twentieth Century physics. The next generation of colliders will address a deeper understanding of underlying principles of Nature. The Large Hadron Collider (LHC) will soon begin operations at CERN and confront the limits of theory at the Terascale. Anticipated new physics will illuminate the fundamental par... View full abstract»

• ### Detection of Fast Neutron by Storage Phosphors With Low Gamma-Ray Sensitivity

Publication Year: 2008, Page(s):2352 - 2356
Cited by:  Papers (5)
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Storage phosphors such as SrBPO5:Eu2+ with low gamma-ray sensitivity were applied to fast neutron detection using polyethylene (PE) sheets as a proton generator that were set in front of the phosphors. The photostimulated luminescence (PSL) yields were measured by changing PE thickness when neutron energy was 5 MeV. The experimental results were compared with those by Monte C... View full abstract»

• ### Operation and Control Simulation of a Modular High Temperature Gas Cooled Reactor Nuclear Power Plant

Publication Year: 2008, Page(s):2357 - 2365
Cited by:  Papers (8)
| | PDF (677 KB) | HTML

Issues in the operation and control of the multi-modular nuclear power plant are complicated. The high temperature gas cooled reactor pebble-bed module (HTR-PM) plant with two-module will be built as a demonstration plant in China. To investigate the operation and control characteristics of the plant, a simplified dynamic model is developed and mathematically formulated based upon the fundamental ... View full abstract»

• ### Current Leakage Evolution in Partially Gate Ruptured Power MOSFETs

Publication Year: 2008, Page(s):2366 - 2375
Cited by:  Papers (7)
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It has been observed that power MOSFETs can experience an SEGR and continue to function with altered parameters. We propose that there are three different types of SEGR modes; the micro-break, the thermal runaway, and the avalanche breakdown. Data that demonstrates these stages of device failure are presented as well as a proposed model for the micro-break. Brief discussions of the other modes, ba... View full abstract»

• ### Study on Composite Material for Shielding Mixed Neutron and $\gamma$ -Rays

Publication Year: 2008, Page(s):2376 - 2384
Cited by:  Papers (25)
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Optimized lightweight, compact and high temperature sustaining shielding materials for neutron and gamma radiation were developed by genetic algorithms (GA) combined with the Monte Carlo N-Particle (MCNP) code. A series of samples were designed according to the method. Deep penetration tests by the MCNP code were completed. The results show that the designed samples have more advantages related to... View full abstract»

• ### An Ultra-Compact, Low-Power Reference Circuit/Dosimeter for Space Environments

Publication Year: 2008, Page(s):2385 - 2388
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This paper presents a compact 4-transistor reference circuit, which has been designed in a regular commercially available CMOS process, that responds linearly to radiation exposure and is suitable for compensating radiation-induced deterioration/drift of analog circuits operated in space environments. The paper includes background theory, analysis and measured results obtained from the circuit. View full abstract»

• ### Specification and Verification of Soft Error Performance in Reliable Internet Core Routers

Publication Year: 2008, Page(s):2389 - 2398
Cited by:  Papers (9)
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This paper presents a methodology for developing a specification for soft error performance of an integrated hardware/software system that must achieve highly reliable operation. The methodology enables tradeoffs between reliability and cost to be made during the early silicon design and SW architecture phase. An accelerated measurement technique using neutron beam irradiation is also described th... View full abstract»

• ### Gate Current Noise in Ultrathin Oxide MOSFETs and Its Impact on the Performance of Analog Front-End Circuits

Publication Year: 2008, Page(s):2399 - 2407
Cited by:  Papers (7)
| | PDF (494 KB) | HTML

In future charged particle tracking systems, readout integrated circuits will be based on CMOS processes with minimum feature size in the 100 nm range. In nanoscale technologies, the reduction of the gate oxide thickness may lead to a non-negligible gate current due to direct tunneling phenomena. This leakage current, which is caused by discrete charges randomly crossing a potential barrier, yield... View full abstract»

• ### Noise Behavior of a 180 nm CMOS SOI Technology for Detector Front-End Electronics

Publication Year: 2008, Page(s):2408 - 2413
Cited by:  Papers (2)
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This paper is motivated by the growing interest of the detector and readout electronics community towards silicon-on-insulator CMOS processes. Advanced SOI MOSFETs feature peculiar electrical characteristics impacting their performance with respect to bulk CMOS devices. Here we mainly focus on the study of these effects on the noise parameters of the transistors, using experimental data relevant t... View full abstract»

• ### AMBRA: A Multi-Event Buffering and Readout ASIC for the Silicon Drift Detectors of the ALICE Experiment

Publication Year: 2008, Page(s):2414 - 2419
Cited by:  Papers (2)
| | PDF (1603 KB) | HTML

This paper describes a multi-event buffering and readout ASIC used in the front-end electronics for the silicon drift detectors (SDDs) of the ALICE experiment. The ASIC, named AMBRA, provides a number of control functions, mainly baseline equalization, first level data compression and a four event buffering to the data read-out of the SDD. It also controls the data and configuration flow between t... View full abstract»

• ### Scintillation Properties of Praseodymium Activated ${rm Lu}_{3}{rm Al}_{5}{rm O} _{12}$ Single Crystals

Publication Year: 2008, Page(s):2420 - 2424
Cited by:  Papers (78)
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Scintillation properties of LuAG:Pr grown by Furukawa Co. Ltd., Japan, have been studied. The best crystals display light outputs up to 19000 ph/MeV and an energy resolution of 4.6% at 662 keV. The scintillation yield is found to be a function of size and temperature of the sample; it can be enhanced by 40% upon heating to 450 K. Radioluminescence spectra show both d- f and f-... View full abstract»

• ### Optical and Scintillation Properties of Inorganic Scintillators in High Energy Physics

Publication Year: 2008, Page(s):2425 - 2431
Cited by:  Papers (62)
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This paper presents a comparative study of optical and scintillation properties for various inorganic crystal scintillators, which are used, or actively pursued, by the high energy physics community for experiments. Transmittance, excitation and photo-luminescence spectra were measured for samples with a dimension of 1.5 radiation length. The transmittance data are compared to the theoretical limi... View full abstract»

• ### Optical Reflectance Measurements for Commonly Used Reflectors

Publication Year: 2008, Page(s):2432 - 2437
Cited by:  Papers (36)  |  Patents (1)
| | PDF (590 KB) | HTML

When simulating light collection in scintillators, modeling the angular distribution of optical light reflectance from surfaces is very important. Since light reflectance is poorly understood, either purely specular or purely diffuse reflectance is generally assumed. In this paper we measure the optical reflectance distribution for eleven commonly used reflectors. A 440 nm, output power stabilized... View full abstract»

Publication Year: 2008, Page(s): 2438
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Publication Year: 2008, Page(s):2439 - 2440
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## 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