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Validation of neutron emission and neutron energy spectrum calculations on a Mega Ampere Spherical Tokamak with directional relativistic spectrum simulator

A Sperduti, I Klimek, S Conroy, M Cecconello, M Gorelenkova, A Snicker2021年Plasma Physics and Controlled FusionIF 2.2出版社

The recently developed directional relativistic spectrum simulator (DRESS) code has been validated for the first time against numerical calculations and experimental measurements performed on the Mega Ampere Spherical Tokamak. In this validation, the neutron emissivities and rates computed by DRESS are benchmarked against TRANSP/NUBEAM predictions while the neutron energy spectra provided by DRESS taking as input TRANSP/NUBEAM and ASCOT/BBNBI in Gyro-Orbit mode fast ion distributions are validated against proton pulse height spectra measured by the neutron flux monitor. Excellent agreement was found between DRESS and TRANSP/NUBEAM predictions of local and total neutron emission.

日本語訳

最近開発された指向性相対論的スペクトルシミュレータ(DRESS)コードは、Mega Ampere Spherical Tokamakで実施された数値計算および実験測定に対して初めて検証された。この検証において、DRESSによって計算された中性子放射率および率はTRANSP/NUBEAMの予測とベンチマークされ、一方、TRANSP/NUBEAMおよびASCOT/BBNBIのジャイロ軌道モードでの高速イオン分布を入力としてDRESSが提供する中性子エネルギースペクトルは、中性子束モニタによって測定された陽子波高スペクトルに対して検証された。局所中性子放出および全中性子放出のDRESSとTRANSP/NUBEAMの予測の間には、優れた一致が見出された。

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Spherical tokamakNeutron emission
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