Monte Carlo Calculation of the Effective Penetration Velocity of Re‐Cycling Neutrals in Jet | Zendy

Simonini R. | Zendy; Spence J. | Zendy; Stangeby P. C. | Zendy

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Monte Carlo Calculation of the Effective Penetration Velocity of Re‐Cycling Neutrals in Jet

Author(s) -

Simonini R.,

Spence J.,

Stangeby P. C.

Publication year - 1988

Publication title -

contributions to plasma physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.531

H-Index - 47

eISSN - 1521-3986

pISSN - 0863-1042

DOI - 10.1002/ctpp.2150280432

Subject(s) - monte carlo method , ionization , ohmic contact , atomic physics , plasma , limiter , physics , jet (fluid) , penetration (warfare) , computational physics , ion , materials science , mechanics , nuclear physics , telecommunications , statistics , mathematics , electrode , quantum mechanics , operations research , computer science , engineering

Measured plasma density and temperature profiles have been used as input to a 3‐D Monte Carlo neutral code, NIMBUS, to calculate an effective recycling velocity of neutral deuterium from the JET limiters of ∼1.5×10 4 m/s (2.5 eV). This result quantitatively explains the observed relation between edge density and central density in JET ohmic discharges. It is found that ≲ 30% of the total ionization occurs within the SOL.

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