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Jonathan D. Spear
Associate Beamline Scientist
JDSpear@lbl.gov
6-2240
510-486-7039 tel
510-495-2067 fax

Advanced Light Source Division
Lawrence Berkeley National Laboratory
One Cyclotron Road, MS 6R2100
Berkeley, CA 94720-8226

 
BACKGROUND: I joined the SSG in June of 2004, and I am assigned to Beamline 8.0. I have previous work experience at LBL in the Physical Biosciences and the Energy and Environment Divisions. Also, in 1989, I was a visiting scientist at the Paul Scherrer Institut in Switzerland, where we studied electrode surfaces. Much of my previous research has involved the development of mechanical, electronic, and optical instrumentation.
Please email me with any comments or inquiries.
- Jon Spear
SELECTED JOURNAL ARTICLES:
7) J.D. Spear, G.L. Klunder, and R.E. Russo, "Photothermal deflection spectroscopy of an aqueous sample in a narrow bore quartz capillary," Rev. Sci. Instrum. 69, 2259-2267 (1998). Download .pdf (232 kB)
6) J.D. Spear and R. E. Russo, "Low noise position sensitive detector for optical probe beam deflection measurements," Rev. Sci. Instrum. 67, 2481-2484 (1996). Download .pdf (93 kB)
5) J.D. Spear, R.J. Silva, G.L. Klunder, and R.E. Russo, "Collinear photothermal deflection spectroscopy of liquid samples at varying temperature," Appl. Spectrosc. 47, 1580-1584 (1993).
4) J. D. Spear, R.E. Russo, J.E. Andrews, and P.M. Grant, "Lens correction for the implementation of cylindrical vessels in a spectrophotometer," Rev. Sci. Instrum. 63, 4457-4458 (1992).
3) J.D. Spear and R. E. Russo, "Transverse photothermal beam deflection within a solid," J. Appl. Phys. 70, 580-586 (1991). Download .pdf (988 kB)
2) J. D. Spear, R.E. Russo, and R.J. Silva, "Collinear photothermal deflection spectroscopy with light scattering samples," Appl. Opt. 29, 4225-4234 (1990). Download .pdf (1.4 MB)
1) J.D. Spear, R.E. Russo, and R.J. Silva, "Differential photothermal deflection spectroscopy using a single position sensor," Appl. Spectrosc. 42, 1103-1105 (1988).
PATENT:
U.S. Patent #5,880,461, for "Low noise optical position sensor," awarded to Jonathan D. Spear on March 9, 1999. Link for more info: http://www.lbl.gov/Tech-Transfer/techs/lbnl1138.html
REFEREE FOR JOURNALS:
Analytical Chemistry, Applied Optics, Applied Physics Letters, Review of Scientific Instruments.
RELEVANT HOBBIES: Woodworking, carpentry, and metalworking.