High energy neutral particle analyzer

Kislyakov, A.I.; Khudoleev, A. V.; Kozlovskij, S.S; Петров, М. П.

doi:10.1016/s0920-3796(96)00668-0

Cited by 27 publications

(18 citation statements)

References 4 publications

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“…The neutral particle analyzer (NPA) detection efficiency, η(E),was calibrated [86] for alphas using MeV helium ion beams generated by a cyclotron accelerator and was derived for tritons using hydrogen ions.…”

Section: Pcx Measurement Technique and Instrumentationmentioning

confidence: 99%

See 1 more Smart Citation

Alpha particle physics experiments in the Tokamak Fusion Test Reactor

Zweben¹,

Budny²,

Darrow³

et al. 2000

Nucl. Fusion

106

104

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Alpha particle physics experiments were done on the Tokamak Fusion Test Reactor (TFTR) during its deuterium-tritium (DT) run from 1993-1997. These experiments utilized several new alpha particle diagnostics and hundreds of DT discharges to characterize the alpha particle confinement and wave-particle interactions. In general, the results from the alpha particle diagnostics agreed with the classical singleparticle confinement model in magnetohydrodynamic (MHD) quiescent discharges. Also, the observed alpha particle interactions with sawteeth, toroidal Alfvén eigenmodes (TAE), and ion cyclotron resonant frequency (ICRF) waves were roughly consistent with theoretical modeling. This paper reviews what was learned and identifies what remains to be understood.2

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Section: Pcx Measurement Technique and Instrumentationmentioning

confidence: 99%

“…The escaping helium neutrals were mass and energy analyzed using a high energy (0.3 -3.7 MeV for 4 He) neutral particle analyzer [86]. The …”

Section: Pcx Measurement Technique and Instrumentationmentioning

confidence: 99%

Alpha particle physics experiments in the Tokamak Fusion Test Reactor

Zweben¹,

Budny²,

Darrow³

et al. 2000

Nucl. Fusion

106

104

View full text Add to dashboard Cite

show abstract

“…The acceptance of each of them is increased in comparison with their prototypes operating on the JET facility [6,7]. The analysers are connected with the ITER plasma chamber by two-step beam line through which an atomic flux enters the analysers.…”

Section: Layout Of the Npa Setupmentioning

confidence: 99%

“…-An analysis of the secondary ions is performed in nonuniform magnetic and electric fields (E k B) which provide their two-dimensional focusing to detector inputs. -Specially developed scintillation detectors based on thin scintillator (1 -25 m) [7] are used for the secondary ion detection. They are supplied with electronic units with an adjustable discrimination level and have a low sensitivity to neutrons and gamma rays.…”

Section: Design Of the Analyzers Basic Aspectsmentioning

confidence: 99%

Engineering design of the neutral particle analyser system on ITER

Afanasiev

Kislyakov

Kozlovski³

et al. 2004

Plasma Devices and Operations

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Engineering aspects of a neutral particle analyser setup for International Experimental Thermonuclear Reactor (ITER) have been considered. The setup consists of two neutral particle analysers, LENPA (for energy range of 10-200 keV) and HENPA (for range of 0.1-4 MeV). LENPA is intended for control of isotope ratio of the plasma hydrogen component by measuring an intensity ratio of hydrogen/deuterium/tritium fluxes. It will be incorporated into a system controlling the plasma isotope composition. HENPA is assumed to analyse He atom fluxes to study the fusion alpha particle distribution function. The analysers are located in the protecting vacuum container and are connected with ITER plasma vessel by a beam line. A suggested design of the beam line is described, a pressure distribution along the beam line is calculated, influence of collisions of neutral atoms with the working gas molecules on spectra of atoms is estimated. The design of the analysers will be described shortly.

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“…To measure the spectra of fast chargeexchange atoms, atomic analyzers [1][2][3] with stripping at a gas target and a foil are used, the energy and momentum of the produced ions being analyzed in electric and magnetic fields. Measurements of spectra of chargeexchange atoms yield information on the details of the distribution function of fast plasma ions in the kinetic and real spaces.…”

Section: Introductionmentioning

confidence: 99%

10.1007/s10786-008-2018-0

2000

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High energy neutral particle analyzer

Cited by 27 publications

References 4 publications

Alpha particle physics experiments in the Tokamak Fusion Test Reactor

Alpha particle physics experiments in the Tokamak Fusion Test Reactor

Engineering design of the neutral particle analyser system on ITER

10.1007/s10786-008-2018-0

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