Published August 2019 | Version v1
Journal article Metadata-only

A peak shape model with high-energy tailing for high-resolution alpha-particle spectra

Creators

  • 1. Key Laboratory of Higher Education of Sichuan Province for Enterprise Informationalization and Internet of Things, Sichuan University of Science & Engineering, Zigong (China)
  • 2. School of Computer Science, Sichuan University of Science & Engineering, Zigong (China)
  • 3. The College of Nuclear Technology and Automation Engineering, Chengdu University of Technology (China)
  • 4. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang (China)

Description

The measurement of alpha-particle spectra using semiconductor silicon detectors is an important radioactive analysis method for alpha emitters. It is a common situation that the peaks of alpha-particles with nearby energies are overlapping even with high-resolution alpha-particle spectrometry. In this work, an improved peak shape model named EMG-Landau (Exponentially Modified Gaussian with Landau), taking the high-energy tailing into account, was proposed based on the traditional EMG (Exponentially Modified Gaussian) model. Then the EMG-Landau model was effectively tested by using IAEA reference alpha spectra for unfolding performance and EUROMET reference alpha spectra for estimating the activity ratio. Compared with the traditional EMG model, the EMG-Landau model could be more accurate to fit high-resolution alpha spectra with high-energy tailing.

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2019-12827-x

Additional details

Identifiers

DOI
10.1140/epja/i2019-12827-x;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
55
Journal Issue
8
Journal Page Range
p. 1-6
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
51010528
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ALPHA DECAY; ALPHA DETECTION; ALPHA SPECTRA; ALPHA SPECTROSCOPY; AMERICIUM 243; ENERGY RESOLUTION; EXPERIMENTAL DATA; LEAST SQUARE FIT; PEAKS; PERFORMANCE; PLUTONIUM 238; PLUTONIUM 239; PLUTONIUM 240; SI SEMICONDUCTOR DETECTORS
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; CHARGED PARTICLE DETECTION; DATA; DECAY; DETECTION; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INFORMATION; ISOTOPES; MATHEMATICAL SOLUTIONS; MAXIMUM-LIKELIHOOD FIT; MEASURING INSTRUMENTS; NUCLEAR DECAY; NUCLEI; NUMERICAL DATA; NUMERICAL SOLUTION; ODD-EVEN NUCLEI; PLUTONIUM ISOTOPES; RADIATION DETECTION; RADIATION DETECTORS; RADIOISOTOPES; RESOLUTION; SEMICONDUCTOR DETECTORS; SILICON 32 DECAY RADIOISOTOPES; SPECTRA; SPECTROSCOPY; SPONTANEOUS FISSION RADIOISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
AID: 138