News & recent publications




October 25, 2008
UCLA researchers use Scotch tape to produce X-rays
LA Times

October 23, 2008
Tape measure: X-rays detected from Scotch tape.
Canadian Broadcasting Corporation

October 23, 2008
Colbert Report

October 23, 2008
Scotch Tape Unleashes X-Ray Power NY Times

October 23, 2008
Humble sticky tape emits powerful X-rays: New Scientist

October 22, 2008
Sticky tape generates X-rays: Nature news article

October 2008
Gallery: Take an X-ray with your office sticky tape: Wired

February 27, 2007
Brian Kappus
UCLA graduate student in Seth Putterman's lab in NY Times. See article

April 28,2005 Science & Technology: - The Economist: Cold Fusion. Honest!

April 29, 2005Science Magazine, Vol.308, Tabletop Accelerator Breaks 'Cold Fusion' Jinx.....



• C-K. Su, C. Camara, B. Kappus, S. J. Putterman, Cavitation luminescence in a water hammer: Upscaling sonoluminescence, Physics of Fluids, Vol. 15, No 6, June 2003.

• • Carlos Camara, Seth Putterman, Emil Kirilov, Sonoluminescence from a single bubble driven at 1 megahertz, Physical Review Letters, Vol. 92, 124301, March 2004.

• • S. D. Hopkins, S. J. Putterman, B. A. Kappus, K. S. Suslick, C. G. Camara, Dynamics of a sonoluminescing bubble in sulfuric acid. Physical Review Letters, Vol. 95, 254301, December 2005.

• • Naranjo, B. Gimzewski, J.K. & Putterman, S. J. Observation of nuclear fusion driven by a pyroelectric crystal. Nature 434 (2005) 1115. • David J. Flannigan, Stephen D. Hopkins, Carlos G. Camara, Seth J. Putterman and Kenneth S. Suslick, Measurement of Pressure and Density Inside a Single Sonoluminescing Bubble, Physical Review Letters, Vol. 96, 204301, May 2006.

• • C. G. Camara, S. D. Hopkins, K. S. Suslick, and S. J. Putterman, Upper Bound for Neutron Emission from Sonoluminescing Bubbles in Deuterated Acetone, Physical Review Letters, Vol. 98, 064301, January 2007.

• • Carlos G. Camara, Juan V. Escobar, Jonathan R. Hird, Seth J. Putterman. Correlation Between Nanosecond X-Ray Flashes and Stick-Slip Friction in Peeling Tape, Nature 455, 1089-1092, October 23, 2008.

• • Alexander Bass, Steven J. Ruuth, Carlos Camara, Barry Merriman & Seth Putterman Molecular Dynamics of Extreme Mass Segregation in a Rapidly Collapsing Bubble, Physical Review Letters, 101, 234301, December 2008.

• • Shahzad Khalid, Carlos G. Camara, & Seth J. Putterman Attempts to observe sonoluminescence from a single bubble driven at 10 MHz J. Acoust. Soc. Am. 120 3165 November 2006.

• • Brian A. Kappus, Avik Chakravarty, & Seth J. Putterman Drop tube generates 10-W flashes of sonoluminescence. J. Acoust. Soc. Am. 120 3165 November 2006




Energy Focusing also plays a role in turbulence where intermittent structure can appear see:

      • "Imaging of Intermittency in Ripple-Wave Turbulence " with William Wright, R. Budakian, and D. Pine; Science 278, 1609 (1997)

  • Energy focusing also plays a role in everyday friction where small normal loads are concentrated to megabar pressures at the interfacial bonds which we propose are important to friction:

      • "Real Time Imaging of Two-Dimensional Charge on Dielectric Surfaces: with R. Budakian; Rev. Sci.Instr, 71, 444 (2000).
      • "Correlation Between Charge Transfer and Stick-Slip Friction at a Metal Insulator Interface" with R. Budakian; Phys. Rev. Lett. 85, 1000 (2000)
      • "Time Scales for Cold Welding and the Origins of Stick-Slip Friction," with R. Budakian; Physical Review; B65, 235429-1 –5 (2002): News story Nature Materials: -