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RECORD NUMBER: 9 OF 22

OLS Field Name OLS Field Data
Main Title Evaluation of the PILLS IV /
Author Farthing, William E. ; Smith, Wallace B.
Other Authors
Author Title of a Work
Smith, Wallace B.,
CORP Author Southern Research Inst., Birmingham, AL.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher Environmental Protection Agency, Office of Research and Development, Office of Energy, Minerals, and Industry, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA-600/7-78-130; SORI-EAS-78-611; EPA-68-02-2131
Stock Number PB-291 430
OCLC Number 04984592
ISBN pbk.
Subjects Particles--Measurement. ; Lasers. ; Light--Scattering.
Additional Subjects Particle size ; Gas detector ; Error analysis ; Light scattering ; Lasers ; Design criteria ; Performance evaluation ; Air pollution ; Laboratory equipment ; PILLS 4 instrumentation ; Air pollution detection ; Numerical solutions
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101D5JH.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-7-78-130 Headquarters Library/Washington,DC 06/24/2013
EKAM  EPA-600/7-78-130 Region 4 Library/Atlanta,GA 07/08/1994
EKBD  EPA-600/7-78-130 Research Triangle Park Library/RTP, NC 12/05/2003
ESAD  EPA 600-7-78-130 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-291 430 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation vi, 46 p. : ill. ; 28 cm.
Abstract The report gives results of theoretical and experimental investigations of the operating characteristics of the PILLS IV (Particulate Instrumentation by Laser Light Scattering) in situ particle sizing instrument. Results of both investigations show large errors in sizing particles with the instrument. Attempts to correlate the experimental findings with qualitative theoretical explanations established a sensitivity to particle refractive index and detector response that seems to account for the observed characteristics. Further measurements would be required to test this explanation quantitatively. The prototype was designed to measure particle size using the ratio of intensities of light scattered from a particle at two small angles (14 and 7 degrees) with respect to an incident laser beam. The intensity ratio was chosen because of its relative independence of particle refractive index. However, the magnitude of the scattered intensity at 14 degrees is also used for several important decisions in the electronic processing logic which, for this particular optical system, render it especially sensitive to refractive index and detector variations for determinations of particle size distribution. Possible solutions to these problems were offered with only minor hardware changes.
Notes Prepared for Environmental Protection Agency, Office of Research and Development. Contract no. 68-02-2131, T.D. 11007, program element no. EHE624. July 1978. Includes bibliographical references.
Place Published Research Triangle Park, N.C. Springfield, Va.
Access Notes Also available via the World Wide Web
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Research and Development.; Industrial Environmental Research Laboratory (Research Triangle Park, N.C.); Southern Research Institute (Birmingham, Ala.)
Corp Au Ser Add Ent United States. Environmental Protection Agency. Interagency energy-environment research and development program report ; EPA-600/7-78-130.
NTIS Title Notes Final rept. May 77-Mar 78.
PUB Date Free Form 1978
Series Title Untraced Interagency energy-environment research and development program report ; EPA-600/7-78-130
Category Codes 14B; 68A; 99A
NTIS Prices PC A04/MF A01
Primary Description 600/13
BIB Level m
Cataloging Source OCLC/T
Control Number 323756949
OCLC Time Stamp 20130621140040
Language eng
SUDOCS Number EP 1.23/8:600/7-78-130
Origin OCLC
Type MERGE
OCLC Rec Leader 01885cam 2200385Ii 45020