An utility to read low-pressure gaseous cross sections data
Project description
ZCross
ZCross is a python library used to read low pressure gas sections from various sources like LXCat.
Installation
To install this package just use pip:
pip install zcross
Cross section databases are not provided by ZCross
: however, it is possible to download the cross section tables of interest from LXCat.
Once you download the cross sections in XML
format, you can convert it into a format readable by ZCross
using this online converter.
It is now possible to save the cross section tables in any location (we suggest under /opt/zcross_data
) and to define an enviroment variable pointing to that path:
export ZCROSS_DATA=/opt/zcross_data
(you can add it to your .profile
file)
Examples
List the database availables:
from zcross import ZCross
z = ZCross()
for database in z.databases:
print(database)
Show the groups and references of a speficic database:
from zcross import ZCross
z = ZCross()
database = z.databases[0]
for group in database.groups:
print(group)
for reference in database.references:
print(reference.bibtex())
Show the process of a specific group:
from zcross import ZCross
z = ZCross()
database = z.databases[0]
group = database.groups[0]
for process in group.processes:
print("Process {} (type: {}) : {}".format(process.id, process.collisionType, process))
print("Comment: {}\n".format(process.comment))
Show the cross section table of a specific process:
from zcross import ZCross
z = ZCross()
database = z.databases[0]
group = database.groups[0]
process = group.processes[0]
print('Energy [{}],\tArea [{}]'.format(process.energy_units, process.cross_section_units))
for energy, area in zip(process.energy, process.cross_section):
print('{:8.2f}\t{:e}'.format(energy, area))
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