Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Computerized method and system for designing an aerodynamic focusing lens stack

Patent ·
OSTI ID:1032644
 [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. San Francisco, CA
  2. Oakland, CA
  3. Diablo Grande, CA
  4. Livermore, CA
  5. Kensington, CA
  6. Albany, CA
  7. Brentwood, CA
+ Show Author Affiliations
A computerized method and system for designing an aerodynamic focusing lens stack, using input from a designer related to, for example, particle size range to be considered, characteristics of the gas to be flowed through the system, the upstream temperature and pressure at the top of a first focusing lens, the flow rate through the aerodynamic focusing lens stack equivalent at atmosphere pressure; and a Stokes number range. Based on the design parameters, the method and system determines the total number of focusing lenses and their respective orifice diameters required to focus the particle size range to be considered, by first calculating for the orifice diameter of the first focusing lens in the Stokes formula, and then using that value to determine, in iterative fashion, intermediate flow values which are themselves used to determine the orifice diameters of each succeeding focusing lens in the stack design, with the results being output to a designer. In addition, the Reynolds numbers associated with each focusing lens as well as exit nozzle size may also be determined to enhance the stack design.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,065,119
Application Number:
12/052,597
OSTI ID:
1032644
Country of Publication:
United States
Language:
English

References (5)

A Design Tool for Aerodynamic Lens Systems journal June 2006
A Numerical Characterization of Particle Beam Collimation by an Aerodynamic Lens-Nozzle System: Part I. An Individual Lens or Nozzle journal May 2002
Generating Particle Beams of Controlled Dimensions and Divergence: I. Theory of Particle Motion in Aerodynamic Lenses and Nozzle Expansions journal January 1995
Numerical Characterization of Particle Beam Collimation: Part II Integrated Aerodynamic-Lens–Nozzle System journal June 2004
Focusing of Aerosols into a Particle Beam at Pressures from 10 to 150 Torr journal November 1999

Similar Records

Developing Supersonic Impactor and Aerodynamic Lens for Separation and Handling of Nano-Sized Particles
Technical Report · Mon Jun 30 00:00:00 EDT 2008 · OSTI ID:941125
Evaporation of Water from Particles in the Aerodynamic Lens Inlet: An Experimental Study
Journal Article · Sun Oct 01 00:00:00 EDT 2006 · Analytical Chemistry, 78(19):6942-6947 · OSTI ID:894464
Aerodynamic Focusing of High-Density Aerosols
Technical Report · Sun Feb 16 23:00:00 EST 2014 · OSTI ID:1129015

Related Subjects

47 OTHER INSTRUMENTATION
97 MATHEMATICS AND COMPUTING