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Physical Measurement Laboratory

Stopping-Power and Range Tables for Electrons, Protons, and Helium Ions - Version History

Example of how to reference this online database: (Replace year, month day with database access date.)

Berger, M.J., Coursey, J.S., Zucker, M.A., and Chang, J. (2005), ESTAR, PSTAR, and ASTAR: Computer Programs for Calculating Stopping-Power and Range Tables for Electrons, Protons, and Helium Ions (version 1.2.3). [Online] Available: http://physics.nist.gov/Star [year, month day]. National Institute of Standards and Technology, Gaithersburg, MD.
Optional addition:
Originally published as: Berger, M.J., NISTIR 4999, National Institute of Standards and Technology, Gaithersburg, MD (1993).

Citation Form:

Author/editor. (Year), Title (edition). [Type of medium] Available: URL [Access date].

Version 2.0.1 July 2017	Bug fix to allow user's I value to be set while including extra energy values.
Version 2.0.0 April 2017	Updated to include key dosimetric data from ICRU report 90.
Version 1.2.4 May 2016	Bug fix allowing user to specify I value
Version 1.2.3 August 2005	Improvements were made to the graphing procedure.
Version 1.2.2 April 2000	Installation documentation information supplied.
Version 1.2.1 October 1999	Mislabeled column headings were fixed, and units were added to the spreadsheet (array) output pages.
Version 1.2 July 1999	On ESTAR, when additional energies are added, the standard grid is restricted to an energy range whose calculations result in less uncertainty. Also, on additional energies, data is rounded to 4 significant figures instead of 5 as was done previously. Note: the data is only accurate to 3 significant figures, though 4 may be useful for interpolation. On ESTAR, ASTAR, and PSTAR, energies are now displayed in exponential form. On ESTAR, the density effect parameter is also displayed in exponential form. New option allows downloading output in spreadsheet (array) form. Source code and executables for version 1.2 made available for downloading.
Version 1.1 June 1999	Databases made more accessible by implementing W3C Web Accessibility guidelines. This included incorporating different line styles into the graphs to make them usable for those without the ability to see different colors.
Version 1.0 October 1998	Web program online.
Earlier Work January 1993	NISTIR 4999 published, M. J. Berger

Created October 7, 2009, Updated July 28, 2017