To specify the search criteria, fill in any combination of the input fields in the search form.
The search criteria defined by the different input fields are combined by the logical AND operator.
It means, for example, if you specify the spectrum and the broadening Mechanism, you will receive the list of papers referring to this
spectrum AND the selected broadening mechanism.
The input fields that are represented by scrollable menus allow multiple selections.
If you select multiple entries from a scrollable menu, these individual entries are combined by the logical OR operator.
It means, for example, if you select the capitalized JOURNALS and BOOKS entries from the Publication Source list (by holding down the Ctrl key
and clicking with the mouse on these entries), you will receive the list of papers published either in any journal OR in any book.
An exception is made for the Mechanisms list, where you can change this default behavior
as described below in the help for this input field.
Any blank field or a menu with no highlighted selection is ignored in the search. (Menu items can be de-selected by holding down the Ctrl key
and clicking with the mouse on these entries.)
The output list of references can be sorted by the publication year (in descending order) or by the first author's last name.
The sorting mode can be selected using the radio buttons at the bottom of the form, above the Search for References button.
The text below contains directions on the use of individual input fields in the search form.
- The spectra are specified using the commonly used spectroscopic designations. For example, the second spectrum
of iron (which is singly ionized iron) is designated as Fe II. Alternatively, the same spectrum can be designated as Fe+.
The third spectrum of iron can be specified either as Fe III, or Fe2+, or Fe Cr-like. Deuterium can be specified by symbol D.
Multiple spectra of different elements can be specified in one input line. For example, the string Al I-III,V; Mg II
will result in a list of papers where Al I, Al II, Al III, Al V, or Mg II are investigated.
Note that the parts of the input string relevant to different elements must be separated by semicolon. A range of ionization stages
of a certain element can be specified by a pair of roman numbers separated by a dash. Alternatively, a range of isoelectronic
sequences can be specified as in this example: C H-like-Li-like (this is equivalent to C IV-VI).
A range of elements having consecutive atomic numbers in the Periodic Table can be given by the first and last element symbols
separated by dash. For example the string La-Lu I-IV means "any of the first four spectra of the lanthanides".
Element symbols should be specified as given in the
NIST's Periodic Table of the Elements.
Deuterium and tritium can be specified by symbols D and T, respectively.
Specific isotopes of the elements can be specified by an atomic number of the isotope before the element symbol, e.g. 87Rb I.
Note: This input field is case-insensitive.
- Word/Pattern in Title:
- Specify any fragment of the article title to search for. Those who are familiar with UNIX-style regular expressions can use them to a
limited extent. For example, to search for titles that contain either ATOMIC or IONIC, one can use a string ATOMIC|IONIC. To search for
titles in which the letter A is immediately followed by any number, one can use the string A[0-9].
Note: This input field is case-insensitive.
- Usually, it is sufficient to specify the author(s) last name(s) delimited by comma. If more than one author name is given,
they are combined by the logical AND operator. That is, the returned list will contain the papers that have ALL specified
authors in any order. If there are more than one author with the same last name, you can narrow your search by specifying the author's initials
before the last name. If the author's name has a postfix (e.g. Jr. or Sr.), this postfix may be specified after the last name, e.g.
Haynes Jr. The author names having accented letters or other special characters should be given using similar Latin letters without accents,
e.g. Träbert or Weiß should be given as Trabert or Weiss, respectively. A fragment of the author's last name can be used in the search.
For example, a search for "Lamb" will select all papers of authors whouse last name comtains "lamb", e.g. "Lamb Jr.", "Flambaum", "Lambert", etc.
To restrict the search to author names that start with the given fragment, include the hat symbol (^) before the name fragment, e.g. "^Lamb".
To restrict the search to author names that end with the given fragment, include the dollar symbol ($) after the name fragment, e.g. "Ho$".
Note: This input field is case-insensitive.
- Publication Year From/To:
- If you are searching for papers published within just one year, it is sufficient to specify this year only once in the From field.
All four digits of the year must be given.
- Publication Source:
- This scrollable menu consists of several sections given in the following order: Journals, Collections, Books, Reports, Theses.
In each section, the publication names are in alphabetical order. For convenience, the section names are given in capital letters
at the top of the menu. They are also repeated at the top of each section. If the capitalized name of the section is selected, the search
will include all publications in this section. For journals, the list has abbreviated journal names. For books and collections, the book
title is given. For reports and theses, the list contains the names of the institutions that published these reports and theses. The list of
publication sources allows for multiple selections. If multiple entries are selected, they are combined by the logical OR operator.
For example, if Phys. Lett. A and Phys. Rev. A are selected, the search will include papers published in Phys. Lett. A OR Phys. Rev. A.
- Method Type:
- This section has two independent groups of check boxes: Experiment/Theory/Both and Comment/Compilation. If the Experiment box is checked
(and the Theory and Both boxes are empty), the search will include only experimental papers. If the Theory box is checked
(and the Experiment and Both boxes are empty), the search will include only theoretical papers. If the Both box is checked, then the search
will include only papers that discuss both experiment and theory, regardless of the state of the Experiment and Theory boxes.
In combination with the above, if the Comment box is checked, then the search will include the papers that contain comments (the subject of the
comments can be indicated by a selection in the Mechanism or General Interest Category menus). Similarly, if the Compilation box is checked, the
search will include the papers that contain compilations. If both Comment and Compilation boxes are checked, the search will include papers
that contain either comments OR compilations. (Comments are additions or suggested revisions to data in previously published articles,
comments on particular theoretical or experimental methods, etc.)
- Select one or more broadening mechanisms from the list. For the van der Waals broadening, you can specify one or more perturbers from the
indented perturbers list under the van der Waals entry. If the van der Waals mechanism is selected, but no perturbers are specified, the search
will include van der Waals broadening by any perturber. If more than one entry is selected in the list of mechanisms, by default they are
combined by the logical OR operator. That is, for example, if you select Stark and Zeeman broadening mechanisms, the search will include
papers dealing with either Stark OR Zeeman effects. You can change this default behavior by selecting the AND radio button
located on the right from the Mechanism menu. This is useful for the search of papers on combined Stark/Zeeman effect (Stark broadening in the
presence of magnetic fields). Similarly, to search for van der Waals broadening by air, you can select the perturbers O2 and N2 from the Mechanism
menu and check the AND radio button.
- General Interest Category:
- This part of the search form should be used to search for the papers that do not have numerical data on any particular spectrum
(the Spectra input box should be empty). The topics listed in the selection menu are divided into several topics and sub-topics.
The highest-level categories are given in capital letters. The search for these highest-level categories will include all sub-topics
that are listed with indent under the capital-letter category name. For example, if PRESSURE BROADENING is selected, the search will include
papers on Stark broadening and shifts, van der Waals broadening, and Resonance broadening. Similarly, the lower-level topics are divided into
sub-topics, which are given with larger indent in the list. If the Stark broadening topic is selected, the search will include all sub-topics
such as Hydrogen and hydrogen-like (overlapping) lines, Isolated lines of neutral spectra, Isolated lines of ionic spectra, and
Topics of particular interest. You can make multiple selections of General Interest Categories by holding down the Ctrl key while
clicking with the mouse on the individual topics from the list. If you select multiple topics, they are combined by logical OR.
For example, if both REVIEW ARTICLES and LINE BROADENING TABLES AND BIBLIOGRAPHIES are selected, the search will include papers that are
relevant to either the first OR the second of these categories. The search can be narrowed by specifying other search terms such as
Author(s), Publication Year, Experiment/Theory, etc.
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