Mathematical Modeling of the Efficiency Gadolinium Based Neutron Converters

Абдушукуров, Д. А.

doi:10.4236/am.2013.48a005

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…For neutrons with 1.8 Å wavelength, the calculated efficiency was around 11.6%. According to Abdushukurov, the calculated detection efficiency for a 100 µm thick natural Gd converter in backwards mode with neutrons of 1.8 Å wavelength amounts to 15.2% [34]. With 1.8 Å neutrons and without scattering of the neutrons, Geant4 arrives in backwards configuration at an detection efficiency of 13.9% for a converter thickness of 25 µm and 14.1% for a converter thickness of 100 µm.…”

Section: Converter Efficiencymentioning

confidence: 99%

First measurements with new high-resolution gadolinium-GEM neutron detectors

et al. 2016

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European Spallation Source instruments like the macromolecular diffractometer (NMX) require an excellent neutron detection efficiency, high-rate capabilities, time resolution, and an unprecedented spatial resolution in the order of a few hundred micrometers over a wide angular range of the incoming neutrons. For these instruments solid converters in combination with Micro Pattern Gaseous Detectors (MPGDs) are a promising option. A GEM detector with gadolinium converter was tested on a cold neutron beam at the IFE research reactor in Norway. The µTPC analysis, proven to improve the spatial resolution in the case of 10 B converters, is extended to gadolinium based detectors. For the first time, a Gd-GEM was successfully operated to detect neutrons with a measured efficiency of 11.8% at a wavelength of 2 Å and a position resolution better than 250 µm.

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Section: Converter Efficiencymentioning

confidence: 99%

First measurements with new high-resolution gadolinium-GEM neutron detectors

et al. 2016

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“…Desain penelitian yang dilakukan dengan bentuk kuasi eksperimen ini dikhususkan kepada bentuk "Non Equipalent Control Giroup Design". Dalam desain ini terdapat pretest, sebelum dilakukan perlakuan sama seperti pada bentuk pretest-posttest control group design didesain eksperimen sejati, hanya pada desain ini kelompok eksperimen dan maupun kelompok kontrol tidak dipilih secara random atau acak [17].…”

Section: Metode Penelitianunclassified

Penerapan Multimedia Interaktif Untuk Meningkatkan Motivasi Belajar Dan Hasil Belajar Siswa Pada Pembelajaran IPA

Kahfi

Nurparida

Srirahayu

2021

JPETIK

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— The purpose of this study is to use interactive multimedia in learning so that teachers can learn abstract information to be more concrete. The method used was an experimental method with a population of class V SDN 2 Keresek and a sample of 21 students. The results showed an increase in learning motivation based on the test results of 0.72 with high interpretation. Furthermore, the increase in student learning outcomes is 0.33 in the medium category. The application of interactive multimedia can increase learning motivation and student learning outcomes in grade V SDN 2 Keresek learning science.Keywords— Learning Outcomes, Learning Motivation, Interactive Multimedia. Abstrak — Tujuan penelitian ini menggunakan multimedia interaktif dalam pembelajaran agar guru dapat mempelajari informasi yang bersifat abstrak menjadi lebih konkret. Metode yang digunakan adalah metode eksperimen dengan populasi kelas V SDN 2 Keresek dan sampel yang diambil sebanyak 21 siswa. Hasil penelitian menunjukan peningkatan peningkatan motivasi belajar berdasarkan hasil uji sebesar 0,72 dengan interpretasi tinggi. Selanjutnya peningkatan hasil belajar siswa sebesar 0,33 dengan kategori sedang. Penerapan multimedia interaktif dapat meningkatkan motivasi belajar dan hasil belajar siswa kelas V SDN 2 Keresek pembelajaran IPA. Kata Kunci : Hasil Belajar, Motivasi Belajar, Multimedia Interaktif.

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“…Characteristic efficiency curves have been calculated [36] for a range of incident neutron energies. For a detector system in forward geometry there is a maximum in efficiency as a function of gadolinium layer thickness, typically at thicknesses in the range from 4 µm to 5 µm for 2 Å neutrons.…”

Section: A Neutron Conversion Via Gadoliniummentioning

confidence: 99%

Development of the “GP2” Detector: Modification of the PImMS CMOS Sensor for Energy-Resolved Neutron Radiography

Pooley

Lee

Brouard

et al. 2017

IEEE Trans. Nucl. Sci.

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This paper reports on the development and commissioning of the GP2 detector. GP2 was developed to address the requirement for a high resolution event-mode imaging detector, for application in energy resolved neutron radiography. The name GP2 derives from the use of gadolinium as a neutron conversion material, combined with a secondgeneration mass spectrometry sensor known as PImMS2. Theoretical and measured characteristics of GP2 are compared, with emphasis on the usability and functionality of the detector. The development of the detector has been steered by a design philosophy which was established to ensure that the detector has unique and novel impact. The motivation and consequences of the design philosophy are discussed. The key parameters reported are the neutron detection efficiency (7.5 % at 2.5 Å), gamma sensitivity (1.5x10 − − − −3) and a spatial resolution (modulation transfer function at 10 %) of 6.4 lp/mm for a 4 µm thick natural gadolinium neutron converter film.

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Mathematical Modeling of the Efficiency Gadolinium Based Neutron Converters

Cited by 3 publications

References 6 publications

First measurements with new high-resolution gadolinium-GEM neutron detectors

First measurements with new high-resolution gadolinium-GEM neutron detectors

Penerapan Multimedia Interaktif Untuk Meningkatkan Motivasi Belajar Dan Hasil Belajar Siswa Pada Pembelajaran IPA

Development of the “GP2” Detector: Modification of the PImMS CMOS Sensor for Energy-Resolved Neutron Radiography

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