Light collection in scintillation detector composites for neutron detection

Knoll, G.F.; Knoll, T.F.; Henderson, Thomas M.

doi:10.1109/23.12850

Cited by 189 publications

(70 citation statements)

References 3 publications

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“…The user has two choices in Geant4 for modelling a realistic surface, either the UNIFIED model [101] of the DETECT [102] program, or the original GEANT3 implementation via the GLI-SUR methods flag. Using GLISUR, the roughness of a surface is specified by a single parameter, while with the UNIFIED model a more comprehensive description is possible that deals with all aspects of surface finish and reflector coating.…”

Section: Reflection and Refractionmentioning

confidence: 99%

Geant4—a simulation toolkit

Agostinelli

Allison

Amako

et al. 2003

Nuclear Instruments and Methods in Physics Research Section A:

20,825

11,124

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Geant4 is a toolkit for simulating the passage of particles through matter. It includes a complete range of functionality including tracking, geometry, physics models and hits. The physics processes offered cover a comprehensive range, including electromagnetic, hadronic and optical processes, a large set of long-lived particles, materials and elements, over a wide energy range starting, in some cases, from View the MathML source and extending in others to the TeV energy range. It has been designed and constructed to expose the physics models utilised, to handle complex geometries, and to enable its easy adaptation for optimal use in different sets of applications. The toolkit is the result of a worldwide collaboration of physicists and software engineers. It has been created exploiting software engineering and object-oriented technology and implemented in the C++ programming language. It has been used in applications in particle physics, nuclear physics, accelerator design, space engineering and medical physics

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Section: Reflection and Refractionmentioning

confidence: 99%

Geant4—a simulation toolkit

Agostinelli

Allison

Amako

et al. 2003

Nuclear Instruments and Methods in Physics Research Section A:

20,825

11,124

View full text Add to dashboard Cite

show abstract

“…However, due to our quite specific requirements, it was decided to develop our own code. The simulations performed for this paper are similar in one respect to those of Siegel et al [6], using the DETECT [7] program, in that we create a pixel image of the light distribution on the photodetector surface. However, we do so here for the specific purpose of calculating the two-dimensional (2-D) interaction position and determining how the accuracy of this calculation varies with surface treatment.…”

Section: Introductionmentioning

confidence: 97%

Design and simulation of continuous scintillator with pixellated photodetector

Takacs

Rosenfeld²,

Lerch³

et al. 2001

IEEE Trans. Nucl. Sci.

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Abstract-We present results of simulations performed as part of the development of a gamma-ray detector module comprising a nonpixellated scintillator and pixellated photodiode detector. The simulations have been carried out to determine the effect of surface treatment and dimensions of the scintillator on the ability to determine the two-dimensional position of interaction. A set of 32 different combinations of surface treatments have been considered for each crystal size. Scintillator dimensions considered have been 25 25 ( 3-6 mm 3 ). For scintillator thicknesses at the low end of this range, an average accuracy of 0.5-0.6 mm is achievable for many different surface treatments. At the higher end of the thickness range, 6 mm, the average accuracy reduces to around 0.7 mm and is more dependent on the surface treatment.

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“…We proposed an idea to maximize the light output of the CsI(Tl) detector for a high gamma-ray source of 60 Co. In our system we used Monte Carlo simulation code, MCNPX 6) , to optimize the crystal thickness, and to evaluate factors affecting light collection efficiency we used DETECT-97 7) Code. We present results of a study on the different polishing, and the adopted wrapping treatments of crystal surfaces, for CsI(Tl)-PD detectors.…”

Section: Introductionmentioning

confidence: 99%

The Optimization of CsI(Tl)-PIN Photodiode for High-Energy Gamma-Ray Detection

Bai

2011

Progress in Nuclear Science and Technology

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A Monte Carlo simulation was performed to induce optimized parameters for CsI(Tl) crystals and large area PIN phohtodiode detectors for applications in high energy gamma ray spectroscopy. In order to derive the optimum parameters we used a Trade-Off procedure between the deposition energy and light transmission efficiency, while varying the detector thickness. Moreover, it was found that the surface treatment of the crystal in the photodiode is also an important factor for good light transmission. The tests were performed using a low noise charge-sensitive preamplifier and a pulse shape amplifier. Concerning the operating condition of the system, it is necessary to shape the time and reverse the bias voltage in order to provide another minimization of noise for the system. In order to maximize the light output from the crystal, the crystal geometry, crystal wrapping, optical bonding and matching to the PIN photodiode were all optimized. With a fixed crystal height of 5 cm, it was best to grind the sides and the top surface of the crystal on the front facing sides of the external reflectors, resulting in about a 14.5% enhancement compared with polishing all the sides and top.

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Light collection in scintillation detector composites for neutron detection

Cited by 189 publications

References 3 publications

Geant4—a simulation toolkit

Geant4—a simulation toolkit

Design and simulation of continuous scintillator with pixellated photodetector

The Optimization of CsI(Tl)-PIN Photodiode for High-Energy Gamma-Ray Detection

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