PUBLICATIONS

The documents below are in the Portable Document Format (PDF). To download the Adobe(R) Acrobat(R) Reader click here:

P. R. Buerki, B. C. Jackson, T. Schilling T. Rufer, J. P. Severinghaus, Improved helium exchange gas cryostat and sample tube designs for automated gas sampling and cryopumping, Geochem. Geophys. Geosyst., 7 (2006), Q10010, doi:10.1029/2006GC001341
Full text is available here.

R. M. K. Carlson, J. E. P. Dahl, S. G. Liu, M. M. Olmstead, P. R. Buerki, R. Gat, Diamond Molecules Found in Petroleum - New Members of the H-Terminated Diamond Series, in Synthesis, Properties and Applications of Ultrananocrystalline Diamond, Dieter M. Gruen, Olga A. Shenderova, Alexander Ya Vul', (eds.), Proceedings of the NATO Advanced Research Workshop on Synthesis, Properties and Applications of Ultrananocrystalline Diamond, St. Petersburg, Russia, June 7 to 10, 2004, NATO Science Series II: Mathematics, Physics and Chemistry, Vol. 192, 2005, XI, 63 - 78
Full text is available here.

I. M. Reinitz, P. R. Buerki, J. E. Shigley, S. F. McClure, T. M. Moses, Identification of HPHT-treated yellow to green diamonds, Gems & Gemology 36/2 (2000), 128 - 137
Abstract is available here.

From 1997 to 2003, P. R. Buerki worked as project manager and project team member for the Gemological Institute of America on research projects that were mostly classified as company-confidential or trade-secrets, and were not released for publication. These projects included
work on the identification of natural and synthetic minerals, gemstones, and pearls,
the development of new analytical methods, techniques, and measurement protocols for the non-destructive detection of laboratory treatments of gemstones and pearls,
pilot studies to evaluate and apply new analytical techniques and instrumentation to unsolved analytical problems in the gemology field,
the modification and customization of commercial analytical instruments to laboratory-specific applications,
design and building of prototypes of proprietary analytical equipment, and
contributions to an ongoing research program to continuously optimize existing analytical procedures in support of the company's mission and to improve their bottom line. References that can provide more information on this work are available upon request.

I. M. Reinitz, J. I. Koivula, S. Elen, P. R. Buerki, S. Muhlmeister, Diamonds with evidence of another new diamond treatment, Gems & Gemology 36/1 (2000), 61 - 62

P. R. Buerki, U. Ott, and P. Roth
Microgravity Tested 38 W CO2 Laser Reactor Prototype for the Gas-Phase Synthesis of Refractory Materials, Proceedings 5th International Microgravity Combustion Workshop, May 18 - 22, 1999, Cleveland, Ohio, NASA/CP1999-208917, 377 - 380
Full text is available here.

P. R. Buerki, I. Reinitz, S. Muhlmeister, and S. Elen
Observation of the H2 Defect in Gem Quality Type Ia Diamond, Diamond and Related Materials 8 (1999), 1061 - 1066
Abstract is available here.

P. R. Buerki
Verfahren zur Herstellung von Diamant- und diamantartigen Pulvern in der Gasphase bei tiefen Drucken und mit diesem Verfahren erzeugte Produkte, Swiss Patent No. CH 688283, July 15, 1997
Abstract is available here.

P. R. Buerki
Chemische Gasphasenabscheidung von Diamant (Chemical Vapor Deposition of Diamond), Z. Dt. Gemmol. Ges. 45/4 (1996), 159 - 174
Full text is available here.

P. R. Buerki, S. Leutwyler, Y. Matsui, and Y. Sato
Homogeneous Nucleation of Diamond Particles at Atmospheric Pressure, Meteoritics and Planetary Science 31/Suppl. (1996), A25 - A26
Full text is available here.

P. R. Buerki
Low-Pressure Formation Routes for Interstellar Microdiamonds: Chemical Vapor Deposition vs. Homogeneous Nucleation, Meteoritics and Planetary Science 31/Suppl. (1996), A24
Full text is available here.

P. R. Buerki
Homogeneous Nucleation and Growth of Diamond Nanoparticles, LowG, The Intospace Journal for the Industrial Utilization of Microgravity, 6/2, August 1995, 16 - 19, Intospace GmbH, Editorial Office, Sophienstrasse 6, D-30159 Hannover, Germany

P. R. Buerki, and S. Leutwyler
CO2 Laser Induced Vapour-Phase Synthesis of HN-Diamond Nanoparticles at 0.6 - 2 bar, J. Nanostructured Materials 4 (1994), 577 - 582 (Proceedings Vapor Phase Manufacture of Materials, January 23 - 28, 1994, Kona, Hawaii, USA)

P. R. Buerki, and S. Leutwyler
CO2 laser Induced Gas-Phase Synthesis of Micron-Sized Diamond Powders; Recent Results and Future Developments, Diamond and Related Materials 2 (1993), 174 - 182 (Proceedings Diamond Films `92, Third European Conference on Diamond, Diamond-Like and Related Coatings, August 31 - September 4, 1992, Heidelberg, Germany)

P. R. Buerki
CO2 Laser induzierte Gasphasensynthesen von Siliziumnitrid und Diamant, Ph.D. thesis, University of Berne, Switzerland, 1991
No abstract available. Copies may be ordered here.

P. R. Buerki, and S. Leutwyler
Synthesis of Submicron Diamond Powders by CO2 Laser Pyrolysis of C2H4, Chimia 45 (1991), 11 - 13
Full text is available here.

P. R. Buerki, and S. Leutwyler
Homogeneous Nucleation of Diamond Powder by CO2 Laser Driven Gas-Phase Reactions, J. Appl. Phys. 69 (1991), 3739 - 3744
Full text is available here.

P. R. Buerki, and S. Leutwyler
Substrate-Free Gas-Phase Synthesis of Diamond Powder by CO2 Laser Pyrolysis of C2H4, Surface & Coatings Technology 47 (1991), 22 - 28
Full text is available here.

P. R. Buerki, T. Troxler, and S. Leutwyler
Synthesis of Ultrafine Si3N4 Particles by CO2 Laser Induced Gas Phase Reactions, in: Materials Chemistry at High Temperatures, Vol. 2, Hastie, J. W. (ed.), Humana Press, Clifton, New Jersey, 1990, 323 - 335 (Proceedings High Temperature Materials Chemistry 1989, 6th International Conference on High Temperatures - Chemistry of Inorganic Materials, April, 3 - 7, 1989, National Institute of Standards and Technology, Gaithersburg (MD), USA)
Full text is available here.

P. R. Buerki, B. C. Gaelli, and U. P. Nyffeler
Size-Resolved Trace Metal Characterization of Aerosols Emitted by Four Important Source Types in Switzerland, Atmos. Environ. 23 (1989), 1659 - 1668

B. C. Gaelli, P. R. Buerki, U. P. Nyffeler, and P. W. Schindler
Particle Size Distribution of Airborne Trace Metals, Int. J. Environ. Analyt. Chem. 35 (1989), 111 - 118
Full text is available here.

P. R. Buerki, U. P. Nyffeler, and B. C. Gaelli
Source Analysis of Heavy Metals Adsorbed on Aerosols as a Function of their Size Distribution, J. Aerosol Sci. 18 (1987), 809 - 812 (Proceedings 15th Annual Conference of the Gesellschaft für Aerosolforschung e.V., September 9 - 11, 1987, Hannover, Germany)

P. R. Buerki
Grössenverteilungen und Schwermetallgehalte von Aerosolen einiger wichtiger Emittenten, M.S. thesis, University of Berne, Switzerland, 1987
Abstract (in German) is available here.

U. P. Nyffeler, P. R. Buerki, B. Gaelli, and U. Krähenbühl
Messungen des radioaktiven Ausfalls vom Reaktorunglück in Tschernobyl an korngrössenfraktioniertem Luftstaub und in der Deposition südlich von Bern, in: Proceedings Radioaktivitätsmessungen in der Schweiz nach Tschernobyl und ihre wissenschaftliche Interpretation, October 20 - 22, 1986, Bundesamt für Gesundheitswesen, Berne, Switzerland