THE SEPARATION OF ISOTOPES OF NOBLE GASES IN STATIONARY HIGH FREQUENCY DISCHARGE WITH TRAVELLING MAGNETIC FIELD

E. F. Gorbunova, A. N. Ezubchenko, A. I. Karchevsky, Yu. A. Muromkin
1979 Le Journal de Physique Colloques  
Several papers /1+3/ are devoted t o research of separation properties of high frequency discharge with travelling magnetic f i e l d . It i s shown, t h a t the discharge of such a kind i s able t o separ a t e isotopes and gas mixtures. The separation of gas mixtures i s connected in t h e f i r s t of a l l , with different ionizat i o n degree of components. The mechanism of isotope separation has not been cleared up f u l l y yet.As probable causes of isotope separation the processes of
more » ... odiffusion and thermodifasion were point e d out. It i s proposed /2/,that the observed isotope separation i s connected with thermodiffusion in the neutral plasma component. m e reference t o the barodiffusion separation mechanism i s support e d by t h e f a c t t h a t i n some conditions /1,3/ t h e coincidence of t h e measured enrichment coefficient & with t h e calcuthe formula , whe~e, and are of t h e discharge chamber , p i s atomic weight. It was expedient t o find out how widely such Fig. I. B p erimental arrangement er. 'Phe discharge chamber was placed in t h e solenoid of t h e delay l i n e (2),which consisted of 60 c e l l s . The length of the solenoid was 85cm.The phase velocity of t h e wave Ipp = 5 +9 lo6 cx , frequency f = 80 +46O1Hz* The amplitude of Hz-component of t h e magnetic f i e l d on t h e axis of t h e solenoid a t varieng t h e generator frequency in the above mentioned range decreased from 100 t o 20 ", .me power dissipated in t h e discharge was simple regularity of isotope separation 2 + 14 kw. effect in plasma takes place. Aiming a t t h i s t h e comparative investigation o f isotope separation of three gases,which considerably d i f f e r i n t h e i r atomic weight: xenon, krypton and neon, was carried out. The scheme of the apparatus is shown in Fig.1. !Phe discharge was exited b i t h e water-cooled quartz chamber ( I ) IlOcm long and with the 6,5cm in diamet-The interaction of t h e travelling wave with plasma r e s u l t s i n the appearance of t h e pressure difference &P=@-PL in t h e closed-ended chamber. The value of A P i s in a good agreement with t h e w formula: AP r -(tt/-dissipat ed power, 5 -oros&i%%ion of the chamber) In t h e experiments the value of A P reached 2,s (0-tn6 t h e discharges with t h e same value of AP the relation Article published online by EDP Sciences and available at http://dx.
doi:10.1051/jphyscol:19797104 fatcat:kywuc65e5ndiplaczjtbewyio4