The Sievert integral, named after Swedish medical physicist Rolf Sievert, is a special function commonly encountered in radiation transport calculations.

It plays a role in the sievert (symbol: Sv) unit of ionizing radiation dose in the International System of Units (SI).

Definition

${\displaystyle F(x,\theta )=\int _{0}^{\theta }{e^{-x\sec(\varphi )}}\,d{\varphi }.}$

References

• Abramowitz, Milton; Stegun, Irene Ann, eds. (1983) [June 1964]. "Chapter 27". Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. Applied Mathematics Series. Vol. 55 (Ninth reprint with additional corrections of tenth original printing with corrections (December 1972); first ed.). Washington D.C.; New York: United States Department of Commerce, National Bureau of Standards; Dover Publications. p. 1001. ISBN 978-0-486-61272-0. LCCN 64-60036. MR 0167642. LCCN 65-12253.

External links

• Weisstein, Eric W. "Sievert Integral". MathWorld.