Pellet fueling of JET plasmas during ohmic, ICRF and NBI heating
Pellet fueling experiments have been performed on JET using a single-shot pneumatic injector giving 4.6mm (4.5 x 10/sup 21/ D atoms) and 3.6mm (2.2 x 10/sup 21/ D atoms) diameter cylindrical deuterium pellets with velocity 0.8 less than or equal to V(km.s/sup -1/) less than or equal to 1.2. Z/sub eff/ < 1.5 with n/sub D//n/sub e/ approx. 1 on axis has been achieved. In configurations with a magnetic seperatrix, peaked electron density profiles with n/sub e/(o)/anti n/sub e/ approx. 2 are obtained, with n/sub e/(0) approx. = 1.2 x 10/sup 20/m/sup -3/ and T/sub e/(0) approx. = 1keV. Separately, high value of n/sub D/(0)tau/sub E/T/sub i/(0) = 1.3 x 10/sup 20/m/sup -3/.s.keV at T/sub i/90) = 6.5keV has been obtained with pellet fueling followed by NBI heating.
- Research Organization:
- Oak Ridge National Lab., TN (USA); JET Joint Undertaking, Abingdon (UK)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6488601
- Report Number(s):
- IAEA-CN-47/I-I-6; CONF-861106-25; ON: DE87008812
- Resource Relation:
- Conference: IAEA international conference on plasma physics and controlled nuclear fusion research, Kyoto, Japan, 12 Nov 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
JET TOKAMAK
PELLET INJECTION
PLASMA INSTABILITY
DEUTERIUM
ICR HEATING
JOULE HEATING
NEUTRAL ATOM BEAM INJECTION
PLASMA CONFINEMENT
PLASMA DENSITY
BEAM INJECTION
CONFINEMENT
ELECTRIC HEATING
HEATING
HIGH-FREQUENCY HEATING
HYDROGEN ISOTOPES
INSTABILITY
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-ODD NUCLEI
PLASMA HEATING
RESISTANCE HEATING
STABLE ISOTOPES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems
700107 - Fusion Energy- Plasma Research- Instabilities