comsol部分气体碰撞界面数据（超长！）
COMPILATION OF ELECTRON CROSS SECTIONS USED BY A. V. PHELPS
Please refer to these data using the sources cited for each gas.
Please do not refer to any of them as "JILA cross sections",
because a) the data shown here for a given gas may come from
several sources that should be referred to by the respective
authors names; b) in most cases no one else at JILA or NIST has
approved the data or even looked at it. Reference to this data as
"JILA data" could be interpreted incorrectly as indicating NIST
approval and could jepordize my Web site usage.
GASES COMPILED: O2, N2, CO, CO2, H2, H2O, NO, SF6, He, Ne, Ar,
Xe, Na, and Mg
Comments are made on cross sections from other sources for some
of these and other gases.
WE MAKE NO CLAIMS FOR THESE CROSS SECTIONS BEYOND THOSE STATED IN
THE PAPERS WHERE THEY ARE PUBLISHED OR CITED. IN MOST CASES THESE
CROSS SECTIONS WERE ASSEMBLED IN THE 1970'S AND 1980'S. IN ONLY A
FEW CASES HAVE THEY BEEN MODIFIED OR TESTED SINCE THAT TIME. I DO
NOT PLAN ANY UPDATES. ADDITIONS HAVE BEEN MADE WHEN CROSS
SECTIONS HAVE BEEN ASSEMBLED FOR OTHER PURPOSES. SINCE THE JILA
INFORMATION CENTER WAS CLOSED BY NIST, THERE IS NO ONE THERE TO
HELP YOU. OPINIONS EXPRESSED ARE THOSE OF A. V. PHELPS AND DO NOT
IMPLY JILA, CU, OR NIST APPROVAL.
The cross sections are in 1E-16 cm2. The two-term Boltzmann code,
BACKPRO, used in deriving our cross sections employs linear
interpolation between points in the cross section tables.
Therefore linear interpolation should be applied when using them.
Except as noted below for N2, the cross sections listed in JILA
Information Center Reports 26, 27, and 28 for N2, H2, and O2
should be the same as those listed here. (This aspect has not
been checked in detail, so please inform me of discrepancies.)
It should be kept in mind that the momentum transfer cross sections
tabulated are effective values that include the effects of inelastic
collisions as is appropriate for use in the two-tern spherical harmonic
expansion. See, for example, Baraff and Buchsbaum, Phys. Rev. 130,
1007 (1963) and Sec. IIB of Pitchford and Phelps, Phys. Rev. A 25,
540 (1982). Where data is available, the effective Qm is set
equal to the sum of the inelastic cross sections plus the elastic
momentum transfer cross section. This is an approximate relation.
Some of the terms used in the tables and the BACKPRO code are:
QSCALE is a factor by which the input cross sections from the
various sources were multiplied to get the values shown here
and used in the Boltzmann equation.
ENERGY LOSS is the inelastic energy loss in eV.
LOWER LIMIT and UPPER LIMIT were used by BACKPRO to limit
the range within which the tables were interpolated.
Interpolation was the most time-consuming step in the code.
EBR is a parameter used to describe the sharing of energy
among the two electrons resulting from ionization. It is
the parameter w in Yoshida, Phelps, and Pitchford, Phys. Rev.
27, 1345 (1983) and its choice is based on the data of Opal,
Peterson, and Beaty, Phys. Rev. 55, 4100 (1971).
BACKPRO is the FORTRAN code for the solution of the electron
Boltzmann equation developed by Frost and Phelps, Phys. Rev.
127, 1621 (1962) and modified by Phelps and coworkers in later
papers. A detailed analysis of the code as of 1975 has been
given by P.H. Luft, JILA Information Center Report No. 14,
October 1975. Changes since then are minimally documented,
but include accounting for the electrons produced by electron
impact ionization during either a spatial or temporal
exponential growth. See Yoshida et al as cited above.
These cross sections were derived to give a good fit
to published electron transport, excitation coefficient,
attachment coefficient, and ionization coefficient data
for the pure gases. In many cases they have been tested
satisfactorily against similar swarm data for gas mixtures,
e.g., CO2 laser mixtures, H2-Ar mixtures, N2-SF6 mixtures,
and atmospheric pressure dry and moist air. In several
cases, e.g., He, Ar, and Xe, we have not attempted to
distinguish among the various excited states and find the
cross sections satisfactory for models of mixtures and of
ionization and transport in the pure gases.
Please refer to the published articles where possible.
Also, please inform me of any errors or inconsistencies.
Original file preparation 10/29/95.
Last revision of file 06/24/08.
A. V. Phelps, Retired
JILA
University of Colorado
Boulder, CO 80309-0440
e-mail: avp@jila.colorado.edu
General remarks on electron collision cross sections:
For a recent review of electron cross sections see:
T. D. Mark, Y. Hatano, and F. Linder, "Electron Collision
Cross Sections" in "Atomic and molecular data for
radiotherapy and radiation research" IAEA-TECDOC-799, May
1995, Chapt. 2. This chapter contains graphical compilations
of cross sections for Ne, Ar, H2, H2O, CO2, CH4, and C3H8.
These cross sections have not been compared to those given
in this file.
M. Hayashi has prepared very extensive bibliographies of papers on
electron collisions with Ar, H2, O2, N2, CO, H2O, halogen
molecules, hydrogen halide molecules, CO2, CH4, NH3, and PH3. Some
of these reoprts contain recommended cross sections. Available
reports are entitled "Bibliography of electron and photon
cross sections with atoms and molecules published in the 20th century
- [name of gas] -", National Institute for Fusion Research, Report
NIFS-Data Series NIFS-DATA-[??]. Unfortunately, most of these cross
sections are not available on the Web. The Ar results are tabulated
in the accompanying file Hayashi.txt.
Very extensive reviews and compilations of published electron-atom
and electron-molecule cross sections have been prepared by A.
Zecca, G. P. Karwasz, and Brusa, Riv. Nuovo Cimento 19, No. 3,
1-146 (1996) and G. P. Karwasz, R. S. Brusa, and A. Zecca, Riv.
Nuovo Cimento 24, No. 1, 1-118 (2001) and No. 4, 1-101 (2001).
Data shown are selected on the basis of �perceived quality�,
but no recommended values are given. Apparently floppy disk(s?)
giving tabulations can be purchased from the Italian Physical
Society. I have not seen the disks, i.e., they are too expensive.
Unfortunately for gas discharge modeling, the data ranges in
the review papers are limited, especially for momentum transfer
cross sections that can differ greatly from "total" cross sections
at the higher energies.
Stephen Biagi at sfb@hep.ph.liv.ac.uk has derived a sets of
cross sections for electron collisions with ~ 50 different gases
that are required to be consistent with electron swarm data. The ~50
gases include: N2, O2, H20, Ar, CO2, He, Ne, H2, D2, CH4, etc.
Unfortunately, the tabulations of these cross sections are not
available on the Web.
A recent review of electron-molecule collisions is
Hotop, Ruf, Allan, and Frabrikant, "Resonances and threshold
phenomena in low energy electron collisions with molecules and
clusters", in Advances in Atomic, Molecular and Optical Physics,
(Elsevier, 2003) Vol. 49.
A review of experimental integrated and differential cross section
data for electron collisions with some diatomic molecules is
Brunger and Buckman, Physics Reports, 357, 215 (2002). The gases
discussed include H2, O2, N2, the halogens,NO, CO, and halogen
halides. This data is tabulated in Landolt-Bornstein, Vol. 17,
Subvol. C, pp. 35-55 (2003). Also, Vol 17, Subvol. A is concerned
with electron and photon collisions with atoms, but I do not have
access to this volume or its data.
GENERAL WARNING TO GAS DISCHARGE MODELERS:
IF AUTHORS DO NOT EXPLICITLY STATE THAT THERE IS AGREEMENT BETWEEN
A) IONIZATION, EXCITATION, ATTACHMMENT (IF APPLICABLE), AND TRANSPORT
COEFFICIENTS CALCULATED USING THEIR CROSS SECTIONS AND B) RELIABLE
EXPERIMENTAL MEASUREMENTS OF THESE COEFFICIENTS, YOU SHOULD BE
VERY SKEPTICAL OF ALL OF THEIR CROSS SECTIONS AND OF ELECTRON
TRANSPORT AND REACTION COEFFICIENT RESULTS DERIVED FROM THEM.
AGREEMENT WITH SWARM EXPERIMENTS SUCH AS IONIZATION COEFFICIENT,
DRIFT VELOCITY, THE RATIO OF THE TRANSVERSE AND LOGITUDINAL DIFFUSION
COEFFICIENT TO MOBILITY, ATTACHMENT COEFFICIENTS, AND EXCITATION
COEFFICIENTS ARE CRICIAL EVIDENCE OF A RELIABLE SET OF INPUT CROSS
SECTIONS FOR MODELING. FOR EACH GAS IN THIS FILE WE HAVE SUMMARIZED
OUR TESTS OF THE CROSS SECTIONS AGAINST EXPERIMENTAL SWARM DATA.
OXYGEN - O2 - 1978
These cross sections are those developed in Lawton and Phelps, J.
Chem. Phys. 69, 1055 (1978). The agreement of the transport
and reaction coefficients is good and is discussed in detail
in this paper. Information Center Report No. 28 is based on
the same computer files as used to assemble the following data.
As of 9/28/01 I know of no reason to change the cross sections.
Note that the "cross sections" listed under the heading of
three-body attrachment are expressed as equivalent cross
sections at an O2 density of 1 molecule/cm3. This means
that the rate coefficients k and spatial attachment
coefficients alpha/n calculated using BACKPRO must be
multiplied by the O2 density in molecules/cm3 to obtain the
equivalent of the two-body coefficients per molecule calculated
for other processes, such as excitation and ionization.
O2 MOMENTUM-TRANSFER CROSS SECTION
ENERGY Effective Qm - Defined in introduction
1 0.0000 0.3500
2 0.0010 0.3500
3 0.0020 0.3600
4 0.0030 0.4000
5 0.0050 0.5000
6 0.0070 0.5800
7 0.0085 0.6400
8 0.0100 0.7000
9 0.0150 0.8700
10 0.0200 0.9900
11 0.0300 1.2400
12 0.0400 1.4400
13 0.0500 1.6000
14 0.0700 2.1000
15 0.1000 2.5000
16 0.1200 2.8000
17 0.1500 3.1000
18 0.1700 3.3000
19 0.2000 3.6000
20 0.2500 4.1000
21 0.3000 4.5000
22 0.3500 4.7000
23 0.4000 5.2000
24 0.5000 5.7000
25 0.7000 6.1000
26 1.0000 7.2000
27 1.2000 7.9000
28 1.3000 7.9000
29 1.5000 7.6000
30 1.7000 7.3000
31 1.9000 6.9000
32 2.1000 6.6000
33 2.2000 6.5000
34 2.5000 6.1000
35 2.8000 5.8000
36 3.0000 5.7000
37 3.3000 5.5000
38 3.6000 5.4500
39 4.0000 5.5000
40 4.5000 5.5500
41 5.0000 5.6000
42 6.0000 6.0000
43 7.0000 6.6000
44 8.0000 7.1000
45 10.0000 8.0000
46 12.0000 8.5000
47 15.0000 8.8000
48 17.0000 8.7000
49 20.0000 8.6000
50 25.0000 8.2000
51 30.0000 8.0000
52 50.0000 7.7000
53 75.0000 6.8000
54 100.0000 6.5000
55 150.0000 6.7000
56 200.0000 6.0000
57 300.0000 4.9000
58 500.0000 3.6000
59 700.0000 2.9000
60 1000.0000 2.1200
61 1500.0000 1.4800
62 2000.0000 1.1400
63 3000.0000 0.7900
64 5000.0000 0.5100
65 7000.0000 0.3800
66 10000.0000 0.2800
O2 THREE-BODY ATTACHMENT
ENERGY LOSS = 0.000 , LOWER LIMIT = 0.000 , UPPER LIMIT = 1.058 ,
QSCALE = 1.000000 (QSCALE USED ONLY FOR RECONSTRUCTING INPUT DATA)
ENERGY CROSS SECTION
1 0.0000 0.0000
2 0.0580 0.0000
3 0.0730 5.6E-21
4 0.0830 18.0E-21
5 0.0890 4.2E-21
6 0.0950 8.4E-21
7 0.1030 18.0E-21
8 0.1090 0.0000
9 0.1500 0.0000
10 0.1700 0.0000
11 0.2000 0.0000
12 0.2100 3.56E-21
13 0.2300 0.0000
14 0.3200 0.0000
15 0.3300 2.30E-21
16 0.3500 0.0000
17 0.4400 0.0000
18 0.4500 1.45E-21
19 0.4700 0.0000
20 0.5600 0.0000
21 0.5700 1.1E-21
22 0.5900 0.0000
23 0.6800 0.0000
24 0.6900 8.0E-22
25 0.7100 0.0000
26 0.7900 0.0000
27 0.8000 7.0E-22
28 0.8200 0.0000
29 0.9000 0.0000
30 0.9100 5.5E-22
31 0.9300 0.0000
32 1.0200 0.0000
33 1.0300 4.2E-22
34 1.0500 0.0000
35 1.5000 0.0000
36 10000.0000 0.0000
O2 TWO-BODY ATTACHMENT
ENERGY LOSS = 0.000 , LOWER LIMIT = 0.000 , UPPER LIMIT = 100.001 ,
QSCALE = 1.200000
ENERGY CROSS SECTION
1 0.0000 0.0000
2 4.4000 0.0000
3 4.9000 0.0000
4 5.3800 0.0023
5 5.8600 0.0072
6 6.1000 0.0108
7 6.4800 0.0138
8 6.7700 0.0152
9 7.0500 0.0156
10 7.3000 0.0148
11 7.5300 0.0131
12 7.7700 0.0110
13 8.0000 0.0084
14 8.2500 0.0054
15 8.7300 0.0028
16 9.2000 0.0014
17 9.6800 0.0008
18 10.1500 0.0008
19 11.3500 0.0008
20 10000.0000 0.0000
O2 SINGL LEVEL ROT PKQ FOR 300K
ENERGY LOSS = 0.020 , LOWER LIMIT = 0.026 , UPPER LIMIT = 1.677 ,
QSCALE = 1.000000
ENERGY CROSS SECTION ENERGY CROSS SECTION
1 0.0000 0.0000
2 0.0067 0.0000
3 0.0700 0.0000
4 0.0800 0.0054
5 0.1000 0.0000
6 0.2000 0.0000
7 0.2100 0.0216
8 0.2200 0.0000
9 0.3200 0.0000
10 0.3300 0.0384
11 0.3500 0.0000
12 0.4400 0.0000
13 0.4500 0.0540
14 0.4700 0.0000
15 0.5600 0.0000
16 0.5700 0.0672
17 0.5900 0.0000
18 0.6800 0.0000
19 0.6900 0.0804
20 0.7100 0.0000
21 0.7900 0.0000
22 0.8000 0.0936
23 0.8100 0.0000
24 0.9000 0.0000
25 0.9100 0.0840
26 0.9300 0.0000
27 1.0200 0.0000
28 1.0300 0.0720
29 1.0500 0.0000
30 1.1300 0.0000
31 1.1400 0.0468
32 1.1600 0.0000
33 1.2300 0.0000
34 1.2300 0.0600
35 1.2600 0.0000
36 1.3400 0.0000
37 1.3500 0.0360
38 1.3700 0.0000
39 1.4400 0.0000
40 1.4500 0.0240
41 1.4700 0.0000
42 1.5400 0.0000
43 1.5500 0.0120
44 1.5700 0.0000
45 1.6400 0.0000
46 1.6500 0.0048
47 1.6700 0.0000
48 10000.0000 0.0000
O2 V=1 LINDER AND SCHMIDT WITH SPLIT PK
ENERGY LOSS = 0.190 , LOWER LIMIT = 0.181 , UPPER LIMIT = 5.005 ,
QSCALE = 2.500000
ENERGY CROSS SECTION
1 0.0000 0.0000
2 0.1900 0.0000
3 0.2000 0.0010
4 0.2100 0.0010
5 0.2300 0.0000
6 0.3200 0.0000
7 0.3300 0.4150
8 0.3500 0.0000
9 0.4400 0.0000
10 0.4500 1.3500
11 0.4700 0.0000
12 0.5600 0.0000
13 0.5700 1.8500
14 0.5900 0.0000
15 0.6800 0.0000
16 0.6900 1.6500
17 0.7100 0.0000
18 0.7900 0.0000
19 0.8000 1.0000
20 0.8200 0.0000
21 0.9000 0.0000
22 0.9100 0.6000
23 0.9300 0.0000
24 1.0200 0.0000
25 1.0300 0.2850
26 1.0500 0.0000
27 1.1300 0.0000
28 1.1400 0.1125
29 1.1600 0.0000
30 1.2300 0.0000
31 1.2400 0.0475
32 1.2600 0.0000
33 1.3400 0.0000
34 1.3500 0.0165
35 1.3700 0.0000
36 1.4400 0.0000
37 1.4500 0.0055
38 1.4700 0.0000
39 1.5400 0.0000
40 1.5500 0.0019
41 1.5700 0.0000
42 1.6300 0.0000
43 1.6500 0.0006
44 1.6700 0.0000
45 3.5000 0.0000
46 4.0000 0.0000
47 5.0000 0.0000
48 10000.0000 0.0000
O2 V=2 LINDER AND SCHMIDT X2
ENERGY LOSS = 0.380 , LOWER LIMIT = 0.439 , UPPER LIMIT = 5.005 ,
QSCALE = 1.250000
ENERGY CROSS SECTION
1 0.0000 0.0000
2 0.3800 0.0000
3 0.4400 0.0000
4 0.4500 0.0000
5 0.4700 0.0000
6 0.5600 0.0000
7 0.5700 0.1400
8 0.5900 0.0000
9 0.6800 0.0000
10 0.6900 0.4150
11 0.7100 0.0000
12 0.7900 0.0000
13 0.8000 0.5350
14 0.8200 0.0000
15 0.9000 0.0000
16 0.9100 0.4650
17 0.9300 0.0000
18 1.0200 0.0000
19 1.0300 0.3150
20 1.0500 0.0000
21 1.1300 0.0000
22 1.1400 0.2000
23 1.1600 0.0000
24 1.2300 0.0000
25 1.2400 0.0950
26 1.2600 0.0000
27 1.3400 0.0000
28 1.3500 0.0400
29 1.3700 0.0000
30 1.4400 0.0000
31 1.4500 0.0185
32 1.4700 0.0000
33 1.5400 0.0000
34 1.5500 0.0085
35 1.5700 0.0000
36 1.6300 0.0000
37 1.6500 0.0034
38 1.6700 0.0000
39 3.5000 0.0000
40 4.0000 0.0000
41 5.0000 0.0000
42 10000.0000 0.0000
...
太多啦这里放不下
私信我获得全部数据叭
