Linear Stability of Self-Similar Flow: 3. Compressional Waves in Imploding Spherical Shells

Technical Report · Mon May 01 00:00:00 EDT 1978

DOI:https://doi.org/10.2172/6560441· OSTI ID:6560441

Book, David L. ^[1]

---

1. Naval Research Lab. (NRL), Washington, DC (United States)

A new, potentially disruptive, phenomenon in target pellets irradiated by laser or particle beams is described. Initially weak standing sound waves (vibrations) in an imploding spherical shell can become comparable in amplitude with the shell thickness if the effective adiabatic index satisfies ..gamma.. < 5/3. Detailed calculations with a soluble self-consistent model show the relative amplification is strongest for long-wavelength modes in thin shells with small ..gamma.. and is insensitive to the density profile.

• Research Organization: Naval Research Lab. (NRL), Washington, DC (United States)
• Sponsoring Organization: US Department of the Navy, Office of Naval Research (ONR); USDOE
• OSTI ID: 6560441
• Report Number(s): NRL-MR--3799
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
CONFIGURATION
CONFINEMENT
ELECTRON BEAM TARGETS
IMPLOSIONS
INERTIAL CONFINEMENT
ION BEAM TARGETS
Implosion Heating
Instability
LASER TARGETS
Laser Fusion
PLASMA CONFINEMENT
Pellets
SHELLS
SOUND WAVES
SPHERICAL CONFIGURATION
STABILITY
Sound Waves
TARGETS
Vibration