The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions

I. Baek; E. B. Iverson; J. M. Carpenter

doi:10.1016/S0168-9002(01)01259-1

The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions

I. Baek, E. B. Iverson, J. M. Carpenter

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions was discussed. The fraction of scattered neutron per unit solid angle was computated as a function of the emerging angle (φ_s), the fraction of transmitted neutrons (φ_u), and the ratio between these fractions. The results showed that the attenuation factors for neutrons of energies less than 0.05 eV are > 10⁶ at the maximum thicknesses of all simulated absorber materials. The ratio between the fractions was constant in the entire simulated energy range and was lowest of all the materials.

Original language	English
Pages (from-to)	422-430
Number of pages	9
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	481
Issue number	1-3
DOIs	https://doi.org/10.1016/S0168-9002(01)01259-1
State	Published - Apr 1 2002
Externally published	Yes

Keywords

Chopper material
Disk chopper
MCNP
Monte Carlo simulation
Scattered neutron fractiions
Uncollided neutron fractiions

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10.1016/S0168-9002(01)01259-1

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title = "The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions",

abstract = "The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions was discussed. The fraction of scattered neutron per unit solid angle was computated as a function of the emerging angle (φs), the fraction of transmitted neutrons (φu), and the ratio between these fractions. The results showed that the attenuation factors for neutrons of energies less than 0.05 eV are > 106 at the maximum thicknesses of all simulated absorber materials. The ratio between the fractions was constant in the entire simulated energy range and was lowest of all the materials.",

keywords = "Chopper material, Disk chopper, MCNP, Monte Carlo simulation, Scattered neutron fractiions, Uncollided neutron fractiions",

author = "I. Baek and Iverson, {E. B.} and Carpenter, {J. M.}",

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The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions. / Baek, I.; Iverson, E. B.; Carpenter, J. M.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 481, No. 1-3, 01.04.2002, p. 422-430.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions

AU - Baek, I.

AU - Iverson, E. B.

AU - Carpenter, J. M.

PY - 2002/4/1

Y1 - 2002/4/1

N2 - The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions was discussed. The fraction of scattered neutron per unit solid angle was computated as a function of the emerging angle (φs), the fraction of transmitted neutrons (φu), and the ratio between these fractions. The results showed that the attenuation factors for neutrons of energies less than 0.05 eV are > 106 at the maximum thicknesses of all simulated absorber materials. The ratio between the fractions was constant in the entire simulated energy range and was lowest of all the materials.

AB - The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions was discussed. The fraction of scattered neutron per unit solid angle was computated as a function of the emerging angle (φs), the fraction of transmitted neutrons (φu), and the ratio between these fractions. The results showed that the attenuation factors for neutrons of energies less than 0.05 eV are > 106 at the maximum thicknesses of all simulated absorber materials. The ratio between the fractions was constant in the entire simulated energy range and was lowest of all the materials.

KW - Chopper material

KW - Disk chopper

KW - MCNP

KW - Monte Carlo simulation

KW - Scattered neutron fractiions

KW - Uncollided neutron fractiions

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VL - 481

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JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-3

ER -

The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions

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Keywords

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