Two level scheme solvers for nuclear spectroscopy

Kaj Jansson; Douglas DiJulio; Joakim Cederkäll

doi:10.1016/j.nima.2011.07.021

Two level scheme solvers for nuclear spectroscopy

Kaj Jansson, Douglas DiJulio, Joakim Cederkäll

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

Abstract

A program for building level schemes from gamma-spectroscopy coincidence data has been developed. The scheme builder was equipped with two different algorithms: a statistical one based on the Metropolis method and a more logical one, called REMP (REcurse, Merge and Permute), developed from scratch. These two methods are compared both on ideal cases and on experimental gamma-ray data sets. The REMP algorithm is based on coincidences and transition energies. Using correct and complete coincidence data, it has solved approximately half a million schemes without failures. Also, for incomplete data and data with minor errors, the algorithm produces consistent sub-schemes when it is not possible to obtain a complete scheme from the provided data. (C) 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	496-501
Journal	Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume	654
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2011.07.021
Publication status	Published - 2011

Subject classification (UKÄ)

Accelerator Physics and Instrumentation

Free keywords

Coincidence matrix
Computer algorithm
Level scheme solver
Nuclear
gamma-ray spectroscopy

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10.1016/j.nima.2011.07.021

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title = "Two level scheme solvers for nuclear spectroscopy",

abstract = "A program for building level schemes from gamma-spectroscopy coincidence data has been developed. The scheme builder was equipped with two different algorithms: a statistical one based on the Metropolis method and a more logical one, called REMP (REcurse, Merge and Permute), developed from scratch. These two methods are compared both on ideal cases and on experimental gamma-ray data sets. The REMP algorithm is based on coincidences and transition energies. Using correct and complete coincidence data, it has solved approximately half a million schemes without failures. Also, for incomplete data and data with minor errors, the algorithm produces consistent sub-schemes when it is not possible to obtain a complete scheme from the provided data. (C) 2011 Elsevier B.V. All rights reserved.",

keywords = "Coincidence matrix, Computer algorithm, Level scheme solver, Nuclear, gamma-ray spectroscopy",

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doi = "10.1016/j.nima.2011.07.021",

language = "English",

volume = "654",

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journal = "Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",

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TY - JOUR

T1 - Two level scheme solvers for nuclear spectroscopy

AU - Jansson, Kaj

AU - DiJulio, Douglas

AU - Cederkäll, Joakim

PY - 2011

Y1 - 2011

N2 - A program for building level schemes from gamma-spectroscopy coincidence data has been developed. The scheme builder was equipped with two different algorithms: a statistical one based on the Metropolis method and a more logical one, called REMP (REcurse, Merge and Permute), developed from scratch. These two methods are compared both on ideal cases and on experimental gamma-ray data sets. The REMP algorithm is based on coincidences and transition energies. Using correct and complete coincidence data, it has solved approximately half a million schemes without failures. Also, for incomplete data and data with minor errors, the algorithm produces consistent sub-schemes when it is not possible to obtain a complete scheme from the provided data. (C) 2011 Elsevier B.V. All rights reserved.

AB - A program for building level schemes from gamma-spectroscopy coincidence data has been developed. The scheme builder was equipped with two different algorithms: a statistical one based on the Metropolis method and a more logical one, called REMP (REcurse, Merge and Permute), developed from scratch. These two methods are compared both on ideal cases and on experimental gamma-ray data sets. The REMP algorithm is based on coincidences and transition energies. Using correct and complete coincidence data, it has solved approximately half a million schemes without failures. Also, for incomplete data and data with minor errors, the algorithm produces consistent sub-schemes when it is not possible to obtain a complete scheme from the provided data. (C) 2011 Elsevier B.V. All rights reserved.

KW - Coincidence matrix

KW - Computer algorithm

KW - Level scheme solver

KW - Nuclear

KW - gamma-ray spectroscopy

U2 - 10.1016/j.nima.2011.07.021

DO - 10.1016/j.nima.2011.07.021

M3 - Article

SN - 0167-5087

VL - 654

SP - 496

EP - 501

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

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

IS - 1

ER -

Two level scheme solvers for nuclear spectroscopy

Abstract

Subject classification (UKÄ)

Free keywords

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