Published 2020 | Version v1
Book Metadata-only

Reconstruction of 2D Dα emission profile in the SOL and divertor in ITER using the ray transfer matrix approach in synthetic diagnostic

Creators

  • 1. Natsional'nyj Issledovatel'skij Tsentr «Kurchatovskij Inst.», Moscow (Russian Federation)
  • 2. Natsional'nyj Issledovatel'skij Yadernyj Univ. «MIFI», Moscow (Russian Federation)
  • 3. ITER Organization, Saint-Paul-les-Durance (France)

Description

A tomographic problem is solved for reconstructing the two-dimensional (axially symmetric) Dα emission profile in the scrape-off layer (SOL) and divertor in ITER using signal on detectors and ray transfer matrices. It's shown that if the light reflection properties of the first wall are known with accuracy, it is possible to recover the emission profile and filter out the reflected light observed in the main chamber with required accuracy in cases where the reflected signal from divertor does not exceed the signal from SOL by more than 10 times. The dependence of the reflection filtering error on the discrepancy between the expected and the true light reflection properties of the first wall is analyzed

Abstract (Russian)

Решена томографическая задача восстановления аксиально-симметричного профиля светимости дейтерия в линии Dα в пристеночном слое и диверторе ИТЭР по измеренным сигналам. Использован метод матриц переноса лучей. Показано, что в сценариях, где отраженный сигнал из дивертора не превышает сигнал из пристеночной плазмы более чем в 10 раз, возможно восстановить профиль светимости и отфильтровать отраженный свет в наблюдаемом сигнале с требуемой точностью при известных с высокой точностью характеристиках отражения света первой стенкой. Проанализирована зависимость ошибки фильтрации отраженного света от отклонения предполагаемых характеристик отражения стенки от истинных
Part of:
VI International conference «Laser, plasma research and technologies – LaPlaz-2020». Collection of scientific papers. Part 2

Additional details

Additional titles

Original title (Russian)
Восстановление двумерного профиля светимости Dα в пристеночном слое и диверторе ИТЭР в рамках синтетической диагностики с использованием подхода матриц переноса лучей

Publishing Information

Publisher
NIYaU MIFI
Imprint Place
Moscow (Russian Federation)
ISBN
978-5-7262-2655-2
Imprint Title
VI International conference #Left-Pointing Double Angle Quotation Mark#Laser, plasma research and technologies #En Dash# LaPlaz-2020#Right-Pointing Double Angle Quotation Mark#. Collection of scientific papers. Part 2
Imprint Pagination
370 p.
Journal Page Range
p. 197-198

Conference

Title
6. International conference ''Laser, plasma research and technologies - LaPlaz-2020''
Original Conference Title
VI Mezhdunarodnaya konferentsiya «Lazernye, plazmennye issledovaniya i tekhnologii – LaPlaz-2020»
Dates
11-14 Feb 2020
Place
Moscow (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
53110982
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ACCURACY; DEUTERIUM; DIVERTORS; ITER TOKAMAK; PATTERN RECOGNITION; PLASMA DIAGNOSTICS; PLASMA IMPURITIES; PLASMA SCRAPE-OFF LAYER; R CODES; S CODES; SPECTRA UNFOLDING; THEORETICAL DATA; VISIBLE SPECTRA
Descriptors DEC
BOUNDARY LAYERS; CLOSED PLASMA DEVICES; COMPUTER CODES; DATA; DATA PROCESSING; HYDROGEN ISOTOPES; IMPURITIES; INFORMATION; ISOTOPES; LAYERS; LIGHT NUCLEI; NUCLEI; NUMERICAL DATA; ODD-ODD NUCLEI; PROCESSING; SPECTRA; STABLE ISOTOPES; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS; TOKAMAK DEVICES; TOKAMAK TYPE REACTORS

Optional Information

Notes
9 refs. Imprint:VI Mezhdunarodnaya konferentsiya #Left-Pointing Double Angle Quotation Mark#Lazernye, plazmennye issledovaniya i tekhnologii #En Dash# LaPlaz-2020#Right-Pointing Double Angle Quotation Mark#. Sbornik nauchnykh trudov. Chast' 2