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package Demeter::Plugins::Beamlines::BL8;
use File::Basename;
use File::Spec;
my %months = (Jan=>1, Feb=>2, Mar=>3, Apr=>4, May=>5, Jun=>6, Jul=>7, Aug=>8, Sep=>9, Oct=>10, Nov=>11, Dec=>12);
sub is {
my ($class, $data, $file) = @_;
return 0 if not ($INC{'Xray/XDI.pm'});
open(my $fh, '<', $file);
my $first = <$fh>;
## this IS an XDAC file
if ($first =~ m{BL8: X-ray Absorption Spectroscopy}) {
$data->xdi(Xray::XDI->new()) if not $data->xdi;
$data->xdi->extra_version("SLRI/1");
$data->xdi->set_item('Facility', 'name', 'SLRI');
$data->xdi->set_item('Facility', 'xray_source', 'bend magnet');
$data->xdi->set_item('Facility', 'energy', '1.2 GeV');
$data->xdi->set_item('Beamline', 'collimation', 'none');
$data->xdi->set_item('Beamline', 'focusing', 'none');
$data->xdi->set_item('Beamline', 'harmonic_rejection', 'none');
$data->xdi->set_item('Beamline', 'name', 'BL8');
$data->xdi->set_item('Detector', 'i0', 'ionization chamber, N2+He');
my $date;
my ($elem, $edge);
FILE: foreach my $line (<$fh>) {
chomp $line;
$line =~ tr{\r}{}d; # frickin' CRLF
SWITCH: {
($line =~ m{Siam Photon}) and do {
last SWITCH;
};
($line =~ m{\A\#?\s*Energy} ) and do {
my @list = split(" ", $line);
my $col = 1;
foreach my $item (@list) {
next if ($item =~ m{\#});
next if ($item =~ m{\(});
$data->xdi->set_item('Column', $col, lc($item));
++$col;
};
last FILE;
};
($line =~ m{Experiment date}) and do {
my @list = split(/[, ]+/, $line);
my $month = $list[3];
$month = $months{ucfirst(substr($month,0,3))};
my $day = $list[4];
my $year = $list[5];
$date = sprintf("%4.4d-%2.2d-%2.2d", $year, $month, $day);
last SWITCH;
};
($line =~ m{Duration: (\d+:\d+:\d+) - (\d+:\d+:\d+)}) and do {
$data->xdi->set_item('Scan', 'start_time', sprintf("%sT%s", $date, $1));
$data->xdi->set_item('Scan', 'end_time', sprintf("%sT%s", $date, $2));
last SWITCH;
};
($line =~ m{E0 \(eV\) = (\d+)}) and do {
$data->xdi->set_item('Scan', 'edge_energy', $1 . ' eV');
($elem, $edge) = $data->find_edge($1);
last SWITCH;
};
($line =~ m{Photon Energy Scan}) and do {
my @list = split(/\s+=\s+/, $line);
$data->xdi->set_item(q{SLRI}, 'scan', $list[1]);
last SWITCH;
};
($line =~ m{Photon Energy Step}) and do {
my @list = split(/\s+=\s+/, $line);
$data->xdi->set_item('SLRI', 'step', $list[1]);
last SWITCH;
};
($line =~ m{Time Step}) and do {
my @list = split(/\s+=\s+/, $line);
$data->xdi->set_item('SLRI', 'time', $list[1]);
last SWITCH;
};
($line =~ m{Gain}) and do {
my @list = split(/\s+=\s+/, $line);
$data->xdi->set_item('SLRI', 'gains', $list[1]);
last SWITCH;
};
($line =~ m{Points/scan}) and do {
my @list = split(/\s+=\s+/, $line);
$data->xdi->set_item('SLRI', 'points', $list[1]);
last SWITCH;
};
($line =~ m{Ar K edge step size}) and do {
my @list = split(/\s+=\s+/, $line);
$data->xdi->set_item('SLRI', 'arstep', $list[1]);
last SWITCH;
};
($line =~ m{Transmission-mode}) and do {
$data->xdi->set_item('Detector', 'it', 'ionization chamber, N2+He');
last SWITCH;
};
($line =~ m{Si Drift}i) and do {
$data->xdi->set_item('Detector', 'if', '4 element silicon drift');
last SWITCH;
};
($line =~ m{Ge 13-array}i) and do {
$data->xdi->set_item('Detector', 'if', '13 element Ge');
last SWITCH;
};
};
};
if (($ENV{XDIBL8} eq 'KTP') or (lc($elem) eq 'al')) {
$data->xdi->set_item('Mono', 'name', 'KTP(011)');
$data->xdi->set_item('Mono', 'd_spacing', 10.955/2);
} elsif (($ENV{XDIBL8} eq 'InSb') or (lc($elem) eq 'si')) {
$data->xdi->set_item('Mono', 'name', 'InSb(111)');
$data->xdi->set_item('Mono', 'd_spacing', 7.481/2);
} elsif ($ENV{XDIBL8} eq 'Si') {
$data->xdi->set_item('Mono', 'name', 'Si(111)');
$data->xdi->set_item('Mono', 'd_spacing', 6.271/2);
} elsif ($ENV{XDIBL8} eq 'Ge') {
$data->xdi->set_item('Mono', 'name', 'Ge(220)');
$data->xdi->set_item('Mono', 'd_spacing', 4.001/2);
} elsif (lc($elem) eq 'mg') {
$data->xdi->set_item('Mono', 'name', 'Beryl(1010)');
$data->xdi->set_item('Mono', 'd_spacing', 15.954/2);
} else {
$data->xdi->set_item('Mono', 'name', 'Ge(220)');
$data->xdi->set_item('Mono', 'd_spacing', 4.001/2);
};
close $fh;
$data->clear_ifeffit_titles; # if ($remove_ifeffit_comments);
$data->beamline_identified(1);
return 1;
## this IS NOT an BL8 file
} else {
close $fh;
return 0;
};
};
1;
=head1 NAME
Demeter::Plugin::Beamlines::BL8 - beamline recognition plugin for files from SLRI BL8
=head1 VERSION
This documentation refers to Demeter version 0.9.26.
=head1 SYNOPSIS
This plugin recognizes files measured at SLRI BL8.
For details about Demeter beamline recognition plugins, see
L<Demeter::Data::Beamlines>.
For information about the XAS Data Interchange format, see
L<https://github.com/XraySpectroscopy/XAS-Data-Interchange>
=head1 SHORTCOMINGS
Since the mono crystal is not noted in the file header, this uses a
simple-minded heuristic to guess which mono crystal was used. Since
this plugin was developed by Bruce for a measurement of Mg, Al, and Si
edges, it will fill in the C<Mono.d_spacing> and C<Mono.name> items
once the line in the data file specifying the E0 value is found.
Failing that, it will look for an environment variable C<XDIBL8> with
a value of C<beryl>, C<InSb>, C<KTP>, C<Si>, or C<Ge> and set the
<Mono.> items accordingly. Failing that, it presumes the Ge crystals
were used.
=head1 AUTHOR
Bruce Ravel, L<http://bruceravel.github.io/home>
http://bruceravel.github.io/demeter
=cut
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