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VI/72 Atomic Transition Probabilities, Sc-Ni (NIST 1993)
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Atomic Transition Probabilities, Scandium through Manganese
Fuhr J.R., Martin G.A., Wiese W.L.
<J. Phys. Chem. Ref. Data, Vol. 17, Suppl. 3 (1988)>
=1988atps.book.....F
Atomic Transition Probabilities, Iron through Nickel
Fuhr J.R., Martin G.A., Wiese W.L.
<J. Phys. Chem. Ref. Data, Vol. 17, Suppl. 4 (1988)>
=1988atpi.book.....F
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ADC_Keywords: Atomic physics
Keywords: NIST, atomic transition probabilities
Description:
Atomic transition probabilities for Scandium (Z = 21) through Ni (Z =
28) for about 18,300 spectral lines are critically compiled, based on
all available literature sources. The transition probability data,
oscillator strengths, and line shape data were collected, catalogued
and evaluated by the Data Center on Atomic Transition Probabilities at
the National Institute of Standards and Technology, USA (NIST).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
TrProb.dat 181 20018 Transition probabilities
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Note:
The following table shows which ionization stages are included in the
data base.
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Element Allowed transitions Forbidden transitions
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Sc I-V, VII-XX II, V-IX, XI, XIII-XVIII, XX
Ti I-XXI III, VI-X, XII-XIX, XXI
V I-XXII IV, VII-XI, XIII, XV-XXII
Cr I-II,V-XXIII II, IV-V, VIII-XII, XIV, XVI-XXIII
Mn I-II, IV-XXIV I, V-VI, IX-XIII, XV, XVII-XXIV
Fe I-III, VII-XXV I-VIII, X-XXIII, XXV
Co I-II, VIII-XXVI III, VIII, XI-XV, XVII, XIX-XXIV, XXVI
Ni I-III, IX, XI-XXVII I-V, VII, IX, XII-XXV, XXVII
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The data in the columns in the table are all left-justified except
for ionization stage (Spect_No).
Byte-by-byte Description of file: TrProb.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- At_sym ! Element
4- 5 A2 --- Spect_No ? Stage of Ionization
7 A1 --- Allowed [AF]! Transition type - Allowed or Forbidden
9- 11 A3 --- ATP_mult ? Multiplet Number
13- 14 A2 --- Seq_No *? Sequence number within Multiplet
16- 36 A21 --- Lo_conf Lower energy level configuration
38- 56 A19 --- Up_conf Upper energy level configuration
58- 67 A10 --- Lo_term Lower energy level term
69- 80 A12 --- Up_term Upper energy level term
82- 89 A8 --- Mult_No *Multiplet Table Number
91 A1 --- Pre_Wave *Wavelength Prefix
92- 99 A8 0.1nm Wave ? Wavelength
101-108 A8 cm-1 ELo ? Lower Energy Level
110-118 A9 cm-1 EUp ? Upper Energy Level
120-121 I2 --- Gi ? g(i) statistical weight lower level
123-124 I2 --- Gk ? g(k) statistical weight upper level
126-133 A8 0.1GHz Aki ? A(k,i)transition probability (in 10^8 s-1)
135-142 A8 --- fik ? f(i,k) oscillator strength
144-150 A7 --- S *? line strength (atomic units)
152-157 F6.3 --- log(gf) ? log gf
159-165 A7 --- Type *Forbidden transition type
167-170 A4 --- Acc *accuracy rating - uncertainties
172-181 A10 --- NIST_ref *NIST Data Center literature reference code
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Note on Seq_No:
0 refers to weighted averages of line values.
Note on Mult_No:
The Multiplet Table Number Refers to Multiplet Tables by Charlotte
Moore.
Note on Pre_Wave:
A square bracket "[" indicates approximate calculated or
extrapolated values
Note on S:
The line strength is given in atomic units. A cross reference table
for converting between S, f(i,k), A(i,k) is given in the source
reference. Some authors have used a definition of the line strength
for E2 transitions which yields a 50% higher value than employed here
and in earlier NBS transition-probability compilations.
Note on Type:
Type indicates the forbidden transition types.
E1 = electric dipole transition
E2 = electric quadrupole transition
M1 = magnetic dipole transition
M2 = magnetic quadrupole transition
Note on Acc:
The ratings for the uncertainties are:
A = within 3%
B = within 10%
C = within 25%
D = within 50%
E = greater than 50%
+,- = often a further distinction in the uncertainty labels was
made by assigning a plus or minus to indicate the lines are
estimated to be somewhat better or worse than similar lines.
c, 1, 2 = undefined
Note on NIST_ref:
Abbreviations appearing are:
ls : LS coupling rules applied
n : normalized to a scale different from that of the author
interp.: derived by an interpolation technique rather than taken
directly from the literature
The NIST reference source code list is not available in electronic
form as part of this data set.
Modifications:
The following errors were found and corrected after checking the
printed version: (1) in record 7967 an underscore in the exponent was
replaced by a minus sign; (2) a comma in the A(k,i) field number was
replaced by a dot; (3) the S field in records 9840 and 14850 was
replaced by the printed value; (4) the bar sign in record 211 was
found to be spurious. In addition to these changes, the opening and
closing brackets around the exponent in the Aki, fik, and S fields
were replaced by the "E" for the exponent followed by the exponent
value. The notes "a" following the closing bracket were found to be
unnecessary and removed. The format for the Aki, fik and S fields
could not be specified as an F format, nor could the values be aligned
since many values were found to be integer, but all non-numeric
characters have now been removed from those fields.
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(End) N.P.M. Kuin [NSSDC/ADC] 09-NOV-1994