LXCat, www.lxcat.net
Generated on 12 Jan 2015. All rights reserved.

RECOMMENDED REFERENCE FORMAT
- Hayashi database, www.lxcat.net, retrieved on January 12, 2015.

CROSS SECTION DATA FORMAT
In downloaded files, each collision process is defined by a block consisting of
1st line
Keyword in capitals indicating the type of the collision. Possible collision types are elastic, effective, excitation,
ionization, or attachment (capital letters required, key words are case sensitive), where "elastic" is used to denote
the elastic momentum transfer cross section and where "effective" denotes the total momentum transfer cross section (sum
of elastic momentum transfer and total inelastic cross sections).  The latter is useful for solving the Boltzmann
equation in the 2-term approximation.
2nd line
Name of the target particle species. This name is a character string, freely chosen by the user, e.g. "Ar". Optionally
for excitation processes, the name of the corresponding excited state can be specified on the same line, separated from
the first name either by arrow "->" (dash + greater than) or by double-head arrow "<->" (less than + dash +
greater than), e.g. "Ar -> Ar*" and "Ar <-> Ar*", respectively. In the later case BOLSIG+ will automatically
define the inverse superelastic process, constructing the superelastic cross-section by detailed balancing, and
considering the indicated excited state as the target. In this case, the ratio of statistical weights must be input in
the 3rd line (see below).  Alternatively, superelastic collisions could be defined explicitly as excitation collisions
with a negative electron energy loss with user input cross sections and species name, "Ar*", for example.
3rd line
For elastic and effective collisions, the ratio of the electron mass to the target particle mass. For excitation or
ionization collisions, the electron energy loss (nominally the threshold energy) in eV. For attachment, the 3rd line is
missing. In case of an excitation process where an excited state has been indicated on the 2nd line using double-head
arrow "<->", the 3rd line must specify also ratio of the statistical weights of the final state to the initial state
as the second parameter in 3rd line this is needed by BOLSIG+ to calculate the de-excitation cross-section.
from 4th line (optionally)
User comments and reference information, maximum 100 lines. The only constraint on format is that these comment lines
must not start with a number.
Finally
Table of the cross section as a function of energy. The table starts and ends by a line of dashes "------" (at least 5),
and has otherwise two numbers per line: the energy in eV and the cross section in m2.

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DATABASE:         Hayashi database
DESCRIPTION:      These data (except for Ar) were digitized from the curves in Hayashi's article in the book "Swarm
                  Studies and Inelastic Electron-Molecule collisions", eds. LC Pitchford, BV McKoy, A Chutjian and S
                  Trajmar, Springer-Verlag, New York, 1987. Hayashi's collection of references for each gas is given
                  below.
CONTACT:          leanne.pitchford@@laplace.univ-tlse.fr
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**************************************************************************************************************

COMMENT: M. Hayashi, quotElectron collision cross sections for molecules determined from beam and swarm data,quot
         in quotSwarm Studies and Inelastic Electron-Molecule Collisions,quot eds. L.C. Pitchford, B.V. McKoy, A.
         Chutjian, and S. Trajmar, (Springer-Verlag, New York, 1987).

ATTACHMENT
CF4 -> CF4^-
SPECIES: e / CF4
PROCESS: E + CF4 -> CF4-, Attachment
PARAM.:  E = 0 eV, complete set
COMMENT: total attachment (sum of F-and CF3-). Threshold 4.93eV.
UPDATED: 2010-06-23 12:29:20
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 4.930000e+0	0.000000e+0
 4.933890e+0	1.665320e-22
 4.999400e+0	1.968300e-22
 5.054660e+0	2.674090e-22
 5.121780e+0	3.113530e-22
 5.189790e+0	4.229980e-22
 5.399280e+0	4.988830e-22
 5.617240e+0	7.416040e-22
 5.691820e+0	8.859670e-22
 5.843990e+0	1.044910e-21
 6.079890e+0	1.235010e-21
 6.160620e+0	1.365880e-21
 6.494410e+0	1.573390e-21
 6.566200e+0	1.831950e-21
 6.741730e+0	1.978870e-21
 6.831250e+0	2.137570e-21
 7.013870e+0	2.274630e-21
 7.185410e+0	2.226430e-21
 7.429640e+0	1.880740e-21
 8.231590e+0	1.537350e-21
 8.530370e+0	9.918160e-22
 9.140450e+0	4.266050e-22
 9.451130e+0	2.657410e-22
-----------------------------

ELASTIC
CF4
 6.229300e-6
SPECIES: e / CF4
PROCESS: E + CF4 -> E + CF4, Elastic
PARAM.:  m/M = 0.0000062293, complete set
UPDATED: 2011-02-08 11:55:22
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 0.000000e+0	7.144860e-19
 1.110000e-3	7.144860e-19
 1.230000e-3	6.462220e-19
 1.360000e-3	5.104910e-19
 1.680000e-3	4.176030e-19
 1.990000e-3	3.529880e-19
 2.440000e-3	2.788470e-19
 3.010000e-3	2.063140e-19
 3.820000e-3	1.629800e-19
 5.030000e-3	1.203240e-19
 6.400000e-3	9.198890e-20
 7.600000e-3	7.525080e-20
 9.330000e-3	5.944520e-20
 1.109000e-2	4.695950e-20
 1.411000e-2	3.841480e-20
 1.621000e-2	3.135640e-20
 2.133000e-2	2.320010e-20
 2.709000e-2	1.832720e-20
 3.217000e-2	1.447780e-20
 3.821000e-2	1.267270e-20
 4.864000e-2	1.034420e-20
 5.974000e-2	9.054440e-21
 7.095000e-2	7.908240e-21
 8.713000e-2	7.152660e-21
 1.072500e-1	6.684620e-21
 1.229100e-1	6.469280e-21
 1.733700e-1	6.469280e-21
 2.206700e-1	6.684620e-21
 2.808700e-1	6.684620e-21
 3.567000e-1	7.152660e-21
 4.694900e-1	8.171490e-21
 5.975800e-1	9.355850e-21
 7.097300e-1	1.106840e-20
 9.033600e-1	1.309450e-20
 1.109450e+0	1.549150e-20
 1.362570e+0	1.961040e-20
 1.618280e+0	2.397240e-20
 1.858660e+0	2.744690e-20
 2.282690e+0	3.355190e-20
 2.803470e+0	4.101490e-20
 3.329610e+0	4.544660e-20
 4.098370e+0	5.192010e-20
 5.033380e+0	5.740470e-20
 6.181690e+0	5.944520e-20
 7.868230e+0	6.142410e-20
 1.070901e+1	6.142410e-20
 1.229971e+1	5.944520e-20
 1.618884e+1	5.555540e-20
 1.922705e+1	5.024740e-20
 2.361353e+1	4.544660e-20
 3.005595e+1	4.101490e-20
 3.825605e+1	3.590110e-20
 5.206817e+1	3.135640e-20
 6.409005e+1	2.650470e-20
 8.139358e+1	2.320010e-20
 1.001863e+2	1.893720e-20
 1.187231e+2	1.712790e-20
 1.410042e+2	1.447780e-20
 1.794740e+2	1.267270e-20
 2.131564e+2	1.106840e-20
 2.531601e+2	9.667290e-21
 2.907641e+2	8.171490e-21
 3.570993e+2	6.907140e-21
 4.241172e+2	5.838420e-21
 5.208756e+2	4.776070e-21
 6.186299e+2	3.907030e-21
 7.597646e+2	3.189140e-21
 8.726188e+2	2.791520e-21
 1.036386e+3	2.359590e-21
-----------------------------

EXCITATION
CF4 -> CF4(V24)
 5.200000e-2
SPECIES: e / CF4
PROCESS: E + CF4 -> E + CF4(V24), Excitation
PARAM.:  E = 0.052 eV, complete set
UPDATED: 2010-05-19 14:29:59
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 5.200000e-2	0.000000e+0
 5.263000e-2	1.000000e-22
 5.440000e-2	4.314550e-22
 5.622000e-2	4.932680e-22
 5.824000e-2	1.251130e-21
 6.019000e-2	1.579770e-21
 6.235000e-2	2.203050e-21
 6.444000e-2	2.873310e-21
 6.661000e-2	3.393110e-21
 6.899000e-2	4.006950e-21
 7.131000e-2	4.284370e-21
 7.890000e-2	4.887620e-21
 8.731000e-2	5.059450e-21
 1.034300e-1	4.571130e-21
 1.185500e-1	4.006950e-21
 1.404400e-1	3.393110e-21
 1.663800e-1	2.775720e-21
 2.037100e-1	2.350500e-21
 2.334900e-1	1.926980e-21
 2.858900e-1	1.689150e-21
 3.500400e-1	1.337760e-21
 4.295400e-1	1.094350e-21
 5.077400e-1	8.971650e-22
 6.230500e-1	7.355100e-22
 7.884600e-1	6.016820e-22
 9.340600e-1	5.095080e-22
 1.146180e+0	4.177030e-22
 1.310850e+0	3.537140e-22
 1.434740e+0	3.381670e-22
 1.703300e+0	2.762240e-22
 2.090850e+0	2.251310e-22
 2.566580e+0	1.838930e-22
 3.046990e+0	1.552470e-22
 3.748620e+0	1.265310e-22
 4.294410e+0	1.106460e-22
 4.930640e+0	1.000000e-22
-----------------------------

EXCITATION
CF4 -> CF4(V13)
 1.090000e-1
SPECIES: e / CF4
PROCESS: E + CF4 -> E + CF4(V13), Excitation
PARAM.:  E = 0.109 eV, complete set
UPDATED: 2010-05-19 14:32:23
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 1.090000e-1	0.000000e+0
 1.096500e-1	1.498790e-22
 1.133700e-1	3.741670e-22
 1.174900e-1	1.224250e-21
 1.214800e-1	1.838930e-21
 1.256100e-1	1.184520e-20
 1.301700e-1	4.744800e-20
 1.391700e-1	6.016860e-20
 1.597900e-1	7.629950e-20
 1.712200e-1	8.442220e-20
 1.961500e-1	9.340960e-20
 2.252100e-1	1.000000e-19
 2.495200e-1	1.070550e-19
 3.062900e-1	1.106460e-19
 3.636200e-1	1.106460e-19
 4.625500e-1	1.033540e-19
 6.084100e-1	9.654240e-20
 7.468400e-1	9.037850e-20
 9.188100e-1	8.150320e-20
 1.090790e+0	7.127100e-20
 1.338980e+0	6.218650e-20
 1.643640e+0	5.437940e-20
 1.951290e+0	4.590830e-20
 2.316530e+0	4.005660e-20
 2.946830e+0	3.495080e-20
 3.617320e+0	3.056300e-20
 4.440370e+0	2.762240e-20
 5.462850e+0	2.496470e-20
 6.705820e+0	2.178260e-20
 8.530370e+0	1.968670e-20
 1.082720e+1	1.779260e-20
 1.332037e+1	1.552470e-20
 1.525978e+1	1.403090e-20
 1.811609e+1	1.224250e-20
 2.080006e+1	1.000000e-20
 2.228766e+1	8.150320e-21
 2.469339e+1	6.657400e-21
 2.735878e+1	5.249920e-21
 3.031188e+1	4.005660e-21
 3.358374e+1	3.271930e-21
 3.720876e+1	2.580190e-21
 4.272137e+1	1.968670e-21
 4.894152e+1	1.502090e-21
 5.434521e+1	1.143570e-21
 6.225777e+1	8.725360e-22
 7.148148e+1	6.657400e-22
 7.642330e+1	5.437940e-22
 8.188905e+1	4.590830e-22
 9.072812e+1	3.495080e-22
 1.077105e+2	2.490980e-22
 1.193367e+2	1.900610e-22
 1.416740e+2	1.403090e-22
 1.573165e+2	1.106460e-22
 1.626636e+2	9.340960e-23
-----------------------------

EXCITATION
CF4 -> CF4*(7.86eV)
 7.860000e+0
SPECIES: e / CF4
PROCESS: E + CF4 -> E + CF4*(7.86eV), Excitation
PARAM.:  E = 7.86 eV, complete set
COMMENT: Electronic Excitation Crosssection.
UPDATED: 2010-06-23 12:29:47
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 7.860000e+0	0.000000e+0
 7.868230e+0	3.056300e-22
 8.136330e+0	4.005660e-22
 8.413560e+0	7.127100e-22
 8.719690e+0	1.033540e-21
 9.344890e+0	1.403090e-21
 9.992560e+0	1.662000e-21
 1.107390e+1	1.968670e-21
 1.147684e+1	2.331940e-21
 1.271880e+1	2.854880e-21
 1.510578e+1	3.875680e-21
 1.922705e+1	4.903930e-21
 2.361353e+1	5.808820e-21
 3.005595e+1	6.880680e-21
 4.533429e+1	7.885840e-21
 5.206817e+1	8.150320e-21
 6.627381e+1	8.725360e-21
 8.416693e+1	9.037850e-21
 9.996278e+1	9.037850e-21
 1.272354e+2	9.037850e-21
 1.855893e+2	8.725360e-21
 2.279298e+2	7.885840e-21
 3.109163e+2	7.127100e-21
 4.231709e+2	6.218650e-21
 5.208756e+2	5.437940e-21
 6.397086e+2	4.744800e-21
 7.856523e+2	4.140010e-21
 9.023518e+2	3.741670e-21
 1.071699e+3	3.381670e-21
-----------------------------

EXCITATION
CF4 -> CF4*(12.85eV)
 1.285000e+1
SPECIES: e / CF4
PROCESS: E + CF4 -> E + CF4*(12.85eV), Excitation
PARAM.:  E = 12.85 eV, complete set
COMMENT: Neutral qdn values qdn=qd-qi.
UPDATED: 2010-09-28 11:23:56
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 1.285000e+1	0.000000e+0
 1.332037e+1	7.127100e-22
 1.377312e+1	1.310630e-21
 1.475816e+1	1.968670e-21
 1.525978e+1	2.410150e-21
 1.635115e+1	3.056300e-21
 1.690692e+1	3.620260e-21
 1.811609e+1	4.432100e-21
 1.941174e+1	5.249920e-21
 2.150704e+1	5.620320e-21
 2.304521e+1	6.441370e-21
 2.645944e+1	7.885840e-21
 3.134217e+1	9.340960e-21
 3.720876e+1	1.033540e-20
 4.417345e+1	1.184520e-20
 5.434521e+1	1.354580e-20
 6.671040e+1	1.552470e-20
 7.919717e+1	1.662000e-20
 9.402120e+1	1.779260e-20
 1.116200e+2	1.838930e-20
 1.573165e+2	1.900610e-20
 2.069219e+2	1.900610e-20
 2.626363e+2	1.838930e-20
 3.340958e+2	1.779260e-20
 4.249982e+2	1.717740e-20
 5.045489e+2	1.662000e-20
 6.193491e+2	1.552470e-20
 7.111079e+2	1.450150e-20
 8.423331e+2	1.403090e-20
 1.036296e+3	1.224250e-20
-----------------------------

IONIZATION
CF4 -> CF4^+
 1.618000e+1
SPECIES: e / CF4
PROCESS: E + CF4 -> E + E + CF4+, Ionization
PARAM.:  E = 16.18 eV, complete set
UPDATED: 2010-05-19 14:38:04
COLUMNS: Energy (eV) | Cross section (m2)
-----------------------------
 1.618000e+1	0.000000e+0
 1.618884e+1	1.223370e-22
 1.674045e+1	2.244800e-22
 1.731085e+1	2.939250e-22
 1.794072e+1	5.405180e-22
 1.855202e+1	8.967120e-22
 1.922705e+1	1.256650e-21
 2.055963e+1	2.080200e-21
 2.130771e+1	2.820930e-21
 2.203373e+1	3.574180e-21
 2.283545e+1	5.008850e-21
 2.441812e+1	6.346320e-21
 2.712104e+1	7.512820e-21
 2.804515e+1	1.016570e-20
 3.108006e+1	1.246370e-20
 3.444339e+1	1.524760e-20
 3.691294e+1	1.805030e-20
 4.239593e+1	2.136800e-20
 4.858471e+1	2.363430e-20
 5.580140e+1	2.614090e-20
 7.086709e+1	2.891340e-20
 8.722940e+1	3.094580e-20
 1.107803e+2	3.205010e-20
 1.363580e+2	3.312110e-20
 1.794740e+2	2.994510e-20
 2.204194e+2	2.797850e-20
 2.617861e+2	2.529560e-20
 3.445622e+2	2.208210e-20
 4.385682e+2	1.865340e-20
 5.569763e+2	1.631940e-20
 6.615056e+2	1.475460e-20
 7.597646e+2	1.378560e-20
 8.706718e+2	1.203420e-20
 1.034073e+3	1.088030e-20
-----------------------------
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