66 research outputs found
Spectroscopic diagnostics for ablation cloud of tracer-encapsulated solid pellet in LHD
In the Large Helical Device (LHD), various spectroscopic diagnostics have been applied to study the ablation process of an advanced impurity pellet, tracer-encapsulated solid pellet (TESPEL). The total light emission from the ablation cloud of TESPEL is measured by photomultipliers equipped with individual interference filters, which provide information about the TESPEL penetration depth. The spectra emitted from the TESPEL ablation cloud are measured with a 250 mm Czerny?Turner spectrometer equipped with an intensified charge coupled device detector, which is operated in the fast kinetic mode. This diagnostic allows us to evaluate the temporal evolution of the electron density in the TESPEL ablation cloud. In order to gain information about the spatial distribution of the cloud parameters, a nine image optical system that can simultaneously acquire nine images of the TESPEL ablation cloud has recently been developed. Several images of the TESPEL ablation cloud in different spectral domains will give us the spatial distribution of the TESPEL cloud density and temperature
First results of dust injection in T-10 plasma
First results of T-10 injection experiments of the carbon dust particles with 2-10 mm diameter and 40-300 m/s velocity are presented. Different scenarios of the dust injection were tested. The dust particles ablation was studied. An approach for determination of a dust particle penetration length was developed. Measured penetration depths (3-7 cm) are compared with the simulation by the ablation model. The mm range of the separate dust particle diameters derived from the ablation data was close to sizes of the dust injected assuming that an acceleration of the separate particle is similar to the large carbon pellet in the pellet injector.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΏΠ΅ΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΡΠ² ΠΏΠΎ ΡΠ½ΠΆΠ΅ΠΊΡΡΡ Π²ΡΠ³Π»Π΅ΡΠ΅Π²ΠΈΡ
ΠΏΠΈΠ»ΠΎΠ²ΠΈΡ
ΡΠ°ΡΡΠΎΠΊ Π΄ΡΠ°ΠΌΠ΅ΡΡΠΎΠΌ 2-10 ΠΌΠΊΠΌ Π·Ρ ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡΠΌΠΈ 40-300 ΠΌ/Ρ Ρ Π’-10. ΠΡΠΎΡΠ΅ΡΡΠΎΠ²Π°Π½ΠΎ ΡΡΠ·Π½Ρ ΡΡΠ΅Π½Π°ΡΡΡ ΡΠ½ΠΆΠ΅ΠΊΡΡΡ ΠΏΠΈΠ»Ρ. ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½ΠΎ Π²ΠΈΠΏΠ°Ρ ΠΏΠΈΠ»ΠΎΠ²ΠΈΡ
ΡΠ°ΡΡΠΎΠΊ. Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ ΠΏΡΠΈΠ±Π»ΠΈΠ·Π½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΡ Π²ΠΈΠ·Π½Π°ΡΠ΅Π½Π½Ρ Π³Π»ΠΈΠ±ΠΈΠ½ΠΈ ΠΏΡΠΎΠ½ΠΈΠΊΠ½Π΅Π½Π½Ρ ΠΏΠΈΠ»ΠΎΠ²ΠΈΡ
ΡΠ°ΡΡΠΎΠΊ. ΠΠ±ΠΌΡΡΡΠ½Ρ Π³Π»ΠΈΠ±ΠΈΠ½ΠΈ ΠΏΡΠΎΠ½ΠΈΠΊΠ½Π΅Π½Π½Ρ (3-7 ΡΠΌ) ΠΏΠΎΡΡΠ²Π½ΡΠ²Π°Π»ΠΈΡΡ Π· ΡΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΊΠ°ΠΌΠΈ ΠΏΠΎ ΠΌΠΎΠ΄Π΅Π»Ρ Π²ΠΈΠΏΠ°ΡΡ. ΠΡΡΠ½Π΅Π½Ρ ΠΌΡΠΊΡΠΎΠ½Π½Ρ Π΄ΡΠ°ΠΌΠ΅ΡΡΠΈ ΡΠ°ΡΡΠΎΠΊ, ΠΎΡΡΠΈΠΌΠ°Π½Ρ Π· Π΄Π°Π½ΠΈΡ
ΠΏΠΎ Π²ΠΈΠΏΠ°ΡΡ, Ρ Π±Π»ΠΈΠ·ΡΠΊΠΈΠΌΠΈ Π΄ΠΎ ΡΠΎΠ·ΠΌΡΡΡΠ² ΡΠ½ΠΆΠ΅ΠΊΡΠΎΠ²Π°Π½ΠΎΠ³ΠΎ ΠΏΠΈΠ»Ρ, Ρ ΠΏΡΠΈΠΏΡΡΠ΅Π½Π½Ρ ΡΠΎΠ³ΠΎ, ΡΠΎ ΠΎΠΊΡΠ΅ΠΌΡ ΡΠ°ΡΡΠΊΠΈ ΠΏΡΠΈΡΠΊΠΎΡΡΡΡΡΡΡ ΡΠ°ΠΊ ΡΠ°ΠΌΠΎ, ΡΠΊ Ρ ΠΏΡΠΈ ΡΠ½ΠΆΠ΅ΠΊΡΡΡ Π²Π΅Π»ΠΈΠΊΠΈΡ
ΠΏΠ΅Π»Π΅ΡΡΠ².ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΠΏΠ΅ΡΠ²ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎ ΠΈΠ½ΠΆΠ΅ΠΊΡΠΈΠΈ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΡΡ
ΠΏΡΠ»Π΅Π²ΡΡ
ΡΠ°ΡΡΠΈΡ Π΄ΠΈΠ°ΠΌΠ΅ΡΡΠΎΠΌ 2-10 ΠΌΠΊΠΌ ΡΠΎ ΡΠΊΠΎΡΠΎΡΡΡΠΌΠΈ 40-300 ΠΌ/Ρ Π² Π’-10. ΠΡΠΎΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ ΡΡΠ΅Π½Π°ΡΠΈΠΈ ΠΈΠ½ΠΆΠ΅ΠΊΡΠΈΠΈ ΠΏΡΠ»ΠΈ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΠΈΡΠΏΠ°ΡΠ΅Π½ΠΈΠ΅ ΠΏΡΠ»Π΅Π²ΡΡ
ΡΠ°ΡΡΠΈΡ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΏΡΠΈΠ±Π»ΠΈΠ·ΠΈΡΠ΅Π»ΡΠ½Π°Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π³Π»ΡΠ±ΠΈΠ½Ρ ΠΏΡΠΎΠ½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΡΠ»Π΅Π²ΡΡ
ΡΠ°ΡΡΠΈΡ. ΠΠ·ΠΌΠ΅ΡΠ΅Π½Π½ΡΠ΅ Π³Π»ΡΠ±ΠΈΠ½Ρ ΠΏΡΠΎΠ½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΡ (3-7 ΡΠΌ) ΡΡΠ°Π²Π½ΠΈΠ²Π°Π»ΠΈΡΡ Ρ ΡΠ°ΡΡΠ΅ΡΠ°ΠΌΠΈ ΠΏΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΈΡΠΏΠ°ΡΠ΅Π½ΠΈΡ. ΠΡΠ΅Π½Π΅Π½Π½ΡΠ΅ ΠΌΠΈΠΊΡΠΎΠ½Π½ΡΠ΅ Π΄ΠΈΠ°ΠΌΠ΅ΡΡΡ ΡΠ°ΡΡΠΈΡ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΠΈΠ· Π΄Π°Π½Π½ΡΡ
ΠΏΠΎ ΠΈΡΠΏΠ°ΡΠ΅Π½ΠΈΡ, Π±Π»ΠΈΠ·ΠΊΠΈ ΠΊ ΡΠ°Π·ΠΌΠ΅ΡΠ°ΠΌ ΠΈΠ½ΠΆΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΏΡΠ»ΠΈ, Π² ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠΈ ΡΠΎΠ³ΠΎ, ΡΡΠΎ ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΠ΅ ΡΠ°ΡΡΠΈΡΡ ΡΡΠΊΠΎΡΡΡΡΡΡ ΡΠ°ΠΊ ΠΆΠ΅, ΠΊΠ°ΠΊ ΠΈ ΠΏΡΠΈ ΠΈΠ½ΠΆΠ΅ΠΊΡΠΈΠΈ ΠΊΡΡΠΏΠ½ΡΡ
ΠΏΠ΅Π»Π»Π΅ΡΠΎΠ²
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