Strong drive compression of a gas-cooled positron plasma

Applied Physics Letters

Volumn 96, Issue 10, 2010, Pages

  Cassidy, D B ^a   Greaves, R G ^b   Meligne, V E ^a,b   Mills, A P ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b First Point Scientific Inc ^*  (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOTRONS; ELECTRIC FIELDS; POSITRONS;

APPLIED FIELD; BRILLOUIN; DENSITY LIMIT; GAS-COOLED; LOW FIELD; POSITRON PLASMAS; ROTATING ELECTRIC FIELDS; STRONG MAGNETIC FIELDS;

COOLING;

EID: 77949745262     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3354005     Document Type: Article

References (19)

1. R. C. Davidson, Physics of Non-Neutral Plasmas (Addison-Wesley, Redwood City, 1990).
2. R. G. Greaves and C. M. Surko, Phys. Plasmas 1070-664X 4, 1528 (1997). 10.1063/1.872284
3. T. M. O'Neil, Phys. Fluids 1070-6631 23, 2216 (1980). 10.1063/1.862904
4. D. B. Cassidy and A. P. Mills, Jr., Nature (London) 0028-0836 449, 195 (2007). 10.1038/nature06094 (Pubitemid 47402364)
5. F. Anderegg, E. M. Hollman, and C. F. Driscoll, Phys. Rev. Lett. 0031-9007 81, 4875 (1998). 10.1103/PhysRevLett.81.4875
6. R. G. Greaves and C. M. Surko, Phys. Rev. Lett. 0031-9007 85, 1883 (2000) 10.1103/PhysRevLett.85.1883; C. M. Surko and R. G. Greaves, Phys. Plasmas 1070-664X 11, 2333 (2004). 10.1063/1.1651487
7. J. R. Danielson and C. M. Surko, Phys. Rev. Lett. 0031-9007 94, 035001 (2005) 10.1103/PhysRevLett.94.035001; J. R. Danielson and C. M. Surko, Phys. Plasmas 1070-664X 13, 055706 (2006) 10.1063/1.2179410; J. R. Danielson and C. M. Surko, Phys. Rev. Lett. 0031-9007 99, 135005 (2007). 10.1103/PhysRevLett.99. 135005
8. D. B. Cassidy, T. H. Hisakado, V. E. Meligne, H. W. K. Tom, and A. P. Mills, Jr., J. Phys.: Conf. Ser. 1742-6588 194, 012037 (2009). 10.1088/1742-6596/194/1/012037
9. D. B. Cassidy, S. H. M. Deng, R. G. Greaves, and A. P. Jr. Mills, Rev. Sci. Instrum. 0034-6748 77, 073106 (2006). 10.1063/1.2221509 (Pubitemid 44179740)
10. R. G. Greaves, and J. Moxom, AIP Conf. Proc. 0094-243X 692, 140 (2003). 10.1063/1.1635169
11. See, for example, M. Charlton, Rep. Prog. Phys. 0034-4885 48, 737 (1985) 10.1088/0034-4885/48/6/001; D. A. L. Paul and C. Y. Leung, Can. J. Phys. 0008-4204 46, 2779 (1968).
12. M. H. Douglas and T. M. O'Neil, Phys. Fluids 1070-6631 21, 920 (1978). 10.1063/1.862334
13. C. M. Surko, in Physics with Many Positrons., edited by, A. Dupasquier, and, A. P. Mills, Jr., (IOS, Amsterdam, in press).
14. Slow dumps indicate that the plasmas usually have a (parallel) temperature of ∼0.1 eV [D. L. Eggleston, C. F. Driscoll, B. R. Beck, A. W. Hyatt, and J. H. Malmberg, Phys. Fluids B 0899-8221 4, 3432 (1992)] but that this rises dramatically near a ZFM resonance. Because these latter plasmas are intrinsically unstable it is not possible to reliably measure their temperatures, but from an inspection of the emission profiles we estimate that it is >1 eV, indicating that the ZFM is a strong source of plasma heating. 10.1063/1.860399
15. P. M. Platzman and A. P. Mills, Jr., Phys. Rev. B 0163-1829 49, 454 (1994). 10.1103/PhysRevB.49.454
16. Remoderation or brightness enhancement refers to the technique of focussing a beam into a solid material and then extracting some fraction of it with a reduced phase space. A. P. Mills, Jr., Appl. Phys. (Berlin) 0340-3793 23, 189 (1980). 10.1007/BF00899716
17. K. F. Canter, in Positron Spectroscopy of Solids, edited by, A. Dupasquier, and, A. P. Mills, Jr., (IOS, Amsterdam, 1995), p. 361. For simplicity we assume here that the plasmas have a flat top distribution and radius r. The conclusions drawn are unaffected by making this assumption.
18. J. R. Danielson, T. R. Weber, and C. M. Surko, Appl. Phys. Lett. 0003-6951 90, 081503 (2007). 10.1063/1.2709522 (Pubitemid 46310338)
19. C. M. Surko, G. F. Gribakin, and S. J. Buckman, J. Phys. B 0953-4075 38, R57 (2005). 10.1088/0953-4075/38/6/R01