Problem 1607 - Incorrect data for Bromine
Summary: Incorrect data for Bromine
Status: RESOLVED FIXED
Alias: None
Product: Geant4
Classification: Unclassified
Component: materials (show other problems)
Version: 10.0
Hardware: All All
: P5 normal
Assignee: Vladimir.Ivantchenko
URL:
Depends on:
Blocks:
 
Reported: 2014-04-14 03:50 CEST by Tom Roberts
Modified: 2014-05-06 09:30 CEST (History)
0 users

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this problem.
Description Tom Roberts 2014-04-14 03:50:38 CEST 
In G4NistMaterialBuilder::NistSimpleMaterials(), at STP Bromine is claimed to be a gas with a density 7.07210e-3g/cm^3.

In fact, at STP Bromine is a liquid, with a density ~ 3.1028g/cm^3. It does boil easily, and has a large vapor pressure at room temperature, but its boiling point is 58C.

http://en.wikipedia.org/wiki/Bromine
Comment 1 Vladimir.Ivantchenko 2014-05-06 09:30:12 CEST 
Hello,
Thank you for pointing to the problem. Likely NIST data were for vapor Br. We have added a new material in the Geant4 material list: "G4_lBr". It is done in the same style as we do for other cases when there are both gas and liquid states.

The fix will be available with the new public version of Geant4 in June.

VI