A Symposium on International Practical Pressure Scale

The first AIRAPT Task Group on the International Practical Pressure Scale (IPPS) was created at the 6th AIRAPT Conference in 1977; the group recommended the ruby method, the Decker equation of state for NaCl, and a set of pressure fixed points for opaque presses be used as practical pressure reference standards. Since then, several major developments have occurred in high pressure technology. For examples, pressure has been significantly expanded to multi-Mbar ranges; in situ x-ray probes allow for pressure determination from the measured volumes of the materials based on the knowledge of their equations of state; experimental programs to establish primary pressure scales (e.g., in-situ elasticity measurements Brillouin scattering and ultrasonic techniques) have emerged to directly determine pressure without resorting to any prior pressure standard. Numerous attempts have been made for new pressure calibrations, new pressure fixed points, ruby scale refinement, and internally consistent equations of state for a number of materials. These developments call for another step toward an IPPS, in order to set a reference standard and to make the information exchange from different laboratories in orderly manner.
The aim of the symposium is to review the progress in the pressure calibration in the last decade, and to discuss broadly the calibrants that can serve as anchors of an IPPS. Factors such as practicality, sharpness of the transitions, thermodynamic equilibrium conditions, and chemical inertness will be evaluated for any proposed references. Meanwhile, we propose to establish a Task Group of 10-12 people at the 26th AIRAPT to work for an international agreement on an IPPS.
Guoyin Shen, gshen@ciw.edu
Yanbin Wang, wang@cars.uchicago.edu
Stefan Klotz, Stefan.Klotz@impmc.jussieu.fr
Taku Tsuchiya, tsuchiya.taku.mg@ehime-u.ac.jp 
  Frederic Datchi, Alex Goncharov, Eugene Gregoryanz, Kurt Leinenweber, Baosheng Li, Ho-kwang Mao, Tsutomu Mashimo, Takeshi Sakai, Karl Syassen, DaisukeYamazaki, Issac Silvera


Important Dates
Aug. 19th (Sat) to 24th (Thu), 2017
(Aug. 19 to 23, 2017: Scientific Program)

Abstract Submission Opens:
Jan. 30th, 2017

Early Bird Registration Due:
Apr. 30th, 2017

Abstract Submission Due:
May 30th, 2017

Advanced Registration Due:
Aug. 10th, 2017

Manuscript Submission Due:
Aug. 23rd, 2017