Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-10T20:43:25.607Z Has data issue: false hasContentIssue false

Two-photon group radiation transfer study in low-density foam cylinder

Published online by Cambridge University Press:  28 November 2006

YAN XU
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China
SHAOENG JIANG
Affiliation:
Research Center of Laser Fusion, CAEP, Mianyang, China
DONGXIAN LAI
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China
WENBING PEI
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China
YONGKUN DING
Affiliation:
Research Center of Laser Fusion, CAEP, Mianyang, China
TIEQIANG CHANG
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China
KE LAN
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China
SHUANGGUI LI
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China
TINGGUI FENG
Affiliation:
Institute of applied physics and computational mathematics, Beijing, China

Abstract

Radiation transfer in low-density foam is influenced by the external radiation field which impacts on the foam when the size of plasma created in laboratory is not large to be opatical thick. The radiation transfers of different photon groups are sensitive probes of the conditions of the medium through which they propagate. The temporal behavior of photon groups to which the plasma is optical thin is quite different from that of photon groups to which the plasma is optical thick. The breakout times of different photon groups through the foam are distinguishable different in experiment when we measures them at the end of foam. The multi-group supersonic radiation transfer behavior in low-density foam is studied both by multi-group transfer numerical simulation and experiments. Two characteristic photon groups are chosen to do experimental research on the multi-group transfer behavior in low-density CH foam. A time-resolved chromatic streaked X-ray spectrometer measure the breakout of the two photon group from the far end of the foam cylinder. The distinguishable transfer time delay between two groups is observed.

Type
Research Article
Copyright
© 2006 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Afshar-rad, T., Desselbeger, M., Dunne, M., Edwards, J., Foster, J.M., Hoarty, D., Jones, M.W., Rose, S.J., Rosen, P.A., Taylor, R. & Willi, O. (1994). Supersonic propagation of an ionization front in low density foam targets driven by thermal radiation. Phys. Rev. Lett. 73, 74.CrossRefGoogle Scholar
Apruzese, J.P., Davis, J., Whitney, K.G., Thornhill, J.W., Kepple, P.C. & Clark, R.W. (2002). The physics of radiation transport in dense plasmas. Phys. Plasmas 9, 2411.CrossRefGoogle Scholar
Back, C.A., Bauer, J.D., Hammer, J.H., Lasinski, B.F., Turner, R.E., Rambo, P.W., Landen, O.L., Suter, L.J., Rosen, M.D. & Hsing, W.H. (2000b). Diffusive, supersonic x-ray transport in radiatively heated foam cylinders. Phys. Plasma 7, 2126.Google Scholar
Back, C.A., Bauer, J.D., Landen, O.L., Turner, R.E., Lasinski, B.F., Hammer, J.H., Rosen, M.D., Suter, L.J. & Hsing, W.H. (2000a). Detailed measurements of a diffusive supersonic wave in a radiatively heated foam. Phys. Rev. Lett. 84, 274.Google Scholar
Canaud, B., Fortin, X., Garaude, F., Meyer, C. & Philippe, F. (2004). Progress in direct-drive fusion studies for the Laser Megajoule. Laser Part. Beams 22, 109114.Google Scholar
Castor, J.I. (2004). Radiation Hydrodynamics. New York: Cambridge University Press.CrossRef
Danson, C.N., Brummitt, P.A., Clarke, R.J., Collier, I., Fell, B., Frackiewicz, A.J., Hawkes, S., Hernandez-Gomez, C., Holligan, P., Hutchinson, M.H.R., Kidd, A., Lester, W.J., Musgrave, I.O., Neely, D., Neville, D.R., Norreys, P.A., Pepler, D.A., Reason, C., Shaikh, W., Winstone, T.B., Wyatt, R.W.W. & Wyborn, B.E. (2005). Vulcan petawatt: Design, operation and interactions at 5 × 10(20) Wcm(−2). Laser Part. Beams 23, 8793.Google Scholar
Feng, T., Lai, D. & Xu, Y. (1999). An artificial iteration method for calculating multi-group radiation transfer problems. Comp. Phys. 16, 199.Google Scholar
Feugeas, J.L. (2004). A hierarchy of nonlocal models for the radiative transfer equation. Laser Part. Beams 22, 121127.Google Scholar
Hoarty, D., Barriger, L., Vickers, C., Watt, R. & Nazarov, W. (1999). Observation of ionization fronts in low density foam targets. Phys. Rev. Lett. 82, 2171.CrossRefGoogle Scholar
Jungwirth, K. (2005). Recent highlights of the PALS research program. Laser Part. Beams 23, 177182.Google Scholar
Lan, K., Feng, T., Lai, D., Xu, Y. & Meng, X. (2005). Study on two-dimensional transfer of radiative heating wave. Laser Part. Beams 23, 275.CrossRefGoogle Scholar
Limpouch, J., Demchenko, N.N., Gus'Kov, S.Y., Gromov, A.I., Kalal, M., Kasperczuk, A., Kondrashov, V.N., Krousky, E., Masek, K., Pfeifer, M., Pisarczyk, P., Pisarczyk, T., Rohlena, K., Rozanov, V.B., Sinor, M. & Ullschmied, J. (2005). Laser interactions with low-density plastic foams. Laser Part. Beams 23, 321325.CrossRefGoogle Scholar
Marshak, R.E. (1958). Effect of radiation on shock wave behavior. Phys. Fluids 1, 24.CrossRefGoogle Scholar
Massen, J., Tsakiris, G.D., Eidmann, K., Foldes, I.B., Lower, Th., Sigel, R., Witkowski, S., Nishimura, H., Endo, T., Shiraga, H., Takagi, M., Kato, Y. & Nakai, S. (1994). Supersonic radiative heat waves in low-density high-Z material. Phys. Rev. E 50, 5130.CrossRefGoogle Scholar
Mihalas, D. & Mihalas, B.W. (1984). Foundations of Radiation Hydrodynamic. New York: Oxford University Press.
Minguez, E., Rodriguez, R., Gil, JM., Sauvan, P., Florido, R., Rubiano, J.G., Martel, P. & Mancini, R. (2005). Opacities and line transfer in high density plasma. Laser Part. Beams 23, 199203.CrossRefGoogle Scholar
Philippe, F., Canaud, B., Fortin, X., Garaude, F. & Jourdren, H. (2004). Effects of microstructure on shock propagation in foams. Laser Part. Beams 22, 171174.CrossRefGoogle Scholar
Pomraning, G.C. (1966). The Equations of Radiation Hydrodynamics. Oxford, UK: Pergamon Press.
Zel'dovich, Y.B. & Raizer, Y.P. (1966). Physics of Shock Waves and High Temperature Hydrodynamic Phenomena. New York: Academic.