XSpect Controller
SpectroscopyAnalysis
A class to perform analysis on spectroscopy data.
Source code in XSpect/XSpect_Analysis.py
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bin_uniques(run, key)
Bins unique values for a given key within a run.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
key
|
str
|
The key for which unique values are to be binned. |
required |
Source code in XSpect/XSpect_Analysis.py
filter_detector_adu(run, detector, adu_threshold=3.0)
Filters is a misnomer compared to the other filter functions. This sets detector pixel values below a threshold to 0. Specifically, to remove 0-photon noise from detectors.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector
|
str
|
The key corresponding to the detector data. |
required |
adu_threshold
|
float or list of float
|
The ADU threshold for filtering. Can be a single value or a range (default is 3.0). |
3.0
|
Returns:
| Type | Description |
|---|---|
ndarray
|
The filtered detector data. |
Source code in XSpect/XSpect_Analysis.py
filter_nan(run, shot_mask_key, filter_key='ipm')
A specific filtering implementation for Nans due to various DAQ issues. Filters out shots with NaN values in the specified filter.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
shot_mask_key
|
str
|
The key corresponding to the shot mask. |
required |
filter_key
|
str
|
The key corresponding to the filter data (default is 'ipm'). |
'ipm'
|
Source code in XSpect/XSpect_Analysis.py
filter_shots(run, shot_mask_key, filter_key='ipm', threshold=10000.0)
Filters shots based on a given threshold. For example, if we filter: xray,ipm,1E4 then X-ray shots will be filtered out if the ipm is below 1E4.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
shot_mask_key
|
str
|
The key corresponding to the shot mask. An example being [xray,simultaneous,laser] for all x-ray shots |
required |
filter_key
|
str
|
The key corresponding to the filter data (default is 'ipm'). |
'ipm'
|
threshold
|
float
|
The threshold value for filtering (default is 1.0E4). |
10000.0
|
Source code in XSpect/XSpect_Analysis.py
patch_pixel(run, detector_key, pixel, mode='average', patch_range=4, deg=1, poly_range=6, axis=1)
EPIX detector pixel patching. TODO: extend to patch regions instead of per pixel.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
data
|
array_like
|
Array of shots |
required |
pixel
|
integer
|
Pixel point to be patched |
required |
mode
|
string
|
Determines which mode to use for patching the pixel. Averaging works well. |
'average'
|
patch_range
|
integer
|
Pixels away from the pixel to be patched to be used for patching. Needed if multiple pixels in a row are an issue. |
4
|
deg
|
integer
|
Degree of polynomial if polynomial patching is used. |
1
|
poly_range
|
integer
|
Number of pixels to include in the polynomial or interpolation fitting |
6
|
Returns:
| Type | Description |
|---|---|
float
|
The original data with the new patch values. |
Source code in XSpect/XSpect_Analysis.py
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patch_pixel_1d(run, detector_key, pixel, mode='average', patch_range=4, deg=1, poly_range=6)
EPIX detector pixel patching. TODO: extend to patch regions instead of per pixel.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
data
|
array_like
|
Array of shots |
required |
pixel
|
integer
|
Pixel point to be patched |
required |
mode
|
string
|
Determined which mode to use for patching the pixel. Averaging works well. |
'average'
|
patch_range
|
integer
|
pixels away from the pixel to be patched to be used for patching. Needed if multiple pixels in a row are an issue. |
4
|
deg
|
integer
|
Degree of polynomial if polynomial patching is used. |
1
|
poly_range
|
integer
|
Number of pixels to include in the polynomial or interpolation fitting |
6
|
Returns:
| Type | Description |
|---|---|
float
|
The original data with the new patch values. |
Source code in XSpect/XSpect_Analysis.py
patch_pixels(run, detector_key, mode='average', patch_range=4, deg=1, poly_range=6, axis=1)
Patches multiple pixels in detector data.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
mode
|
str
|
The mode of patching ('average', 'polynomial', or 'interpolate'). |
'average'
|
patch_range
|
int
|
The range around the pixel to use for patching (default is 4). |
4
|
deg
|
int
|
The degree of the polynomial for polynomial patching (default is 1). |
1
|
poly_range
|
int
|
The range of pixels to use for polynomial or interpolation patching (default is 6). |
6
|
axis
|
int
|
The axis along which to apply the patching (default is 1). |
1
|
Source code in XSpect/XSpect_Analysis.py
patch_pixels_1d(run, detector_key, mode='average', patch_range=4, deg=1, poly_range=6)
Patches multiple pixels in 1D detector data.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
mode
|
str
|
The mode of patching ('average', 'polynomial', or 'interpolate'). |
'average'
|
patch_range
|
int
|
The range around the pixel to use for patching (default is 4). |
4
|
deg
|
int
|
The degree of the polynomial for polynomial patching (default is 1). |
1
|
poly_range
|
int
|
The range of pixels to use for polynomial or interpolation patching (default is 6). |
6
|
Source code in XSpect/XSpect_Analysis.py
purge_keys(run, keys)
Purges specific keys from the run to save memory. This is specifically to remove the epix key immediately after processing it from the hdf5 file. To avoid OOM. This is different than the purge all keys method which is used to purge many of the larger analysis steps.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
keys
|
list of str
|
The list of keys to purge. |
required |
Source code in XSpect/XSpect_Analysis.py
reduce_detector_spatial(run, detector_key, shot_range=[0, None], rois=[[0, None]], reduction_function=np.sum, purge=True, combine=True)
Reduces the spatial dimension of detector data based on specified ROIs.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
shot_range
|
list
|
The range of shots to consider (default is [0, None]). |
[0, None]
|
rois
|
list of lists
|
The list of ROIs (regions of interest) as pixel ranges (default is [[0, None]]). |
[[0, None]]
|
reduction_function
|
function
|
The function to apply for reduction (default is np.sum). |
sum
|
purge
|
bool
|
Whether to purge the original detector data after reduction (default is True). |
True
|
combine
|
bool
|
Whether to combine ROIs (default is True). |
True
|
Source code in XSpect/XSpect_Analysis.py
reduce_detector_temporal(run, detector_key, timing_bin_key_indices, average=False)
Reduces the temporal dimension of detector data based on timing bins.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
timing_bin_key_indices
|
str
|
The key corresponding to the timing bin indices. |
required |
average
|
bool
|
Whether to average the data within each bin (default is False). |
False
|
Source code in XSpect/XSpect_Analysis.py
separate_shots(run, detector_key, filter_keys)
Separates shots into different datasets based on filters. separate_shots(f,'epix_ROI_1',['xray','laser']) means find me the epix_ROI_1 images in shots that were X-ray but NOT laser. If you wanted the inverse you would switch the order of the filter_keys.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
filter_keys
|
list of str
|
The list of filter keys to separate. |
required |
Source code in XSpect/XSpect_Analysis.py
time_binning(run, bins, lxt_key='lxt_ttc', fast_delay_key='encoder', tt_correction_key='time_tool_correction')
Bins data in time based on specified bins.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
bins
|
array - like
|
The bins to use for time binning. |
required |
lxt_key
|
str
|
The key for the laser time delay data (default is 'lxt_ttc'). |
'lxt_ttc'
|
fast_delay_key
|
str
|
The key for the fast delay data (default is 'encoder'). |
'encoder'
|
tt_correction_key
|
str
|
The key for the time tool correction data (default is 'time_tool_correction'). |
'time_tool_correction'
|
Source code in XSpect/XSpect_Analysis.py
union_shots(run, detector_key, filter_keys, new_key=True)
Combines shots across multiple filters into a single array. So union_shots(f,'timing_bin_indices',['simultaneous','laser']) means go through the timing_bin_indices and find the ones that correspond to X-rays and laser shots.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
spectroscopy_run
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
filter_keys
|
list of str
|
The list of filter keys to combine. |
required |
Source code in XSpect/XSpect_Analysis.py
XASAnalysis
Bases: SpectroscopyAnalysis
Source code in XSpect/XSpect_Analysis.py
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ccm_binning(run, ccm_bins_key, ccm_key='ccm')
Generate CCM bin indices from CCM data and bins.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
ccm_bins_key
|
str
|
The key corresponding to the CCM bins. |
required |
ccm_key
|
str
|
The key corresponding to the CCM data (default is 'ccm'). |
'ccm'
|
Source code in XSpect/XSpect_Analysis.py
make_ccm_axis(run, energies)
Generate CCM bins and centers from given energy values.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
energies
|
array - like
|
Array of energy values to be used for creating CCM bins. |
required |
Source code in XSpect/XSpect_Analysis.py
reduce_detector_ccm(run, detector_key, ccm_bin_key_indices, average=False, not_ccm=False)
Reduce detector data by CCM bins.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
ccm_bin_key_indices
|
str
|
The key corresponding to the CCM bin indices. |
required |
average
|
bool
|
Whether to average the reduced data (default is False). |
False
|
not_ccm
|
bool
|
Whether to indicate that CCM is not being used (default is False). |
False
|
Source code in XSpect/XSpect_Analysis.py
reduce_detector_ccm_temporal(run, detector_key, timing_bin_key_indices, ccm_bin_key_indices, average=True)
Reduce detector data temporally and by CCM bins.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
timing_bin_key_indices
|
str
|
The key corresponding to the timing bin indices. |
required |
ccm_bin_key_indices
|
str
|
The key corresponding to the CCM bin indices. |
required |
average
|
bool
|
Whether to average the reduced data (default is True). |
True
|
Source code in XSpect/XSpect_Analysis.py
reduce_detector_temporal(run, detector_key, timing_bin_key_indices, average=False)
Reduce detector data temporally. Specifically the 1d detector output for XAS data.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
timing_bin_key_indices
|
str
|
The key corresponding to the timing bin indices. |
required |
average
|
bool
|
Whether to average the reduced data (default is False). |
False
|
Source code in XSpect/XSpect_Analysis.py
trim_ccm(run, threshold=120)
Trim CCM values to remove bins with fewer shots than a specified threshold.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
threshold
|
int
|
The minimum number of shots required to keep a CCM value (default is 120). |
120
|
Source code in XSpect/XSpect_Analysis.py
XESAnalysis
Bases: SpectroscopyAnalysis
Source code in XSpect/XSpect_Analysis.py
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make_energy_axis(run, energy_axis_length, A, R, mm_per_pixel=0.05, d=0.895)
Determination of energy axis by pixels and crystal configuration
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
A
|
float
|
The detector to vH distance (mm) and can roughly float. This will affect the spectral offset. |
required |
R
|
float
|
The vH crystal radii (mm) and should not float. This will affect the spectral stretch. |
required |
pixel_array
|
array - like
|
Array of pixels to determine the energy of. |
required |
d
|
float
|
Crystal d-spacing. To calculate, visit: spectra.tools/bin/controller.pl?body=Bragg_Angle_Calculator |
0.895
|
Source code in XSpect/XSpect_Analysis.py
normalize_xes(run, detector_key, pixel_range=[300, 550])
Normalize XES data by summing the signal over a specified pixel range.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data. |
required |
pixel_range
|
list of int
|
The pixel range to sum over for normalization (default is [300, 550]). |
[300, 550]
|
Source code in XSpect/XSpect_Analysis.py
reduce_det_scanvar(run, detector_key, scanvar_key, scanvar_bins_key)
Reduce detector data by binning according to an arbitrary scan variable.
This method bins the detector data based on a specified scan variable and its corresponding bins.
The result is stored in the run object under a new attribute.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
run
|
object
|
The spectroscopy run instance. |
required |
detector_key
|
str
|
The key corresponding to the detector data within the run object. |
required |
scanvar_key
|
str
|
The key corresponding to the scan variable indices. |
required |
scanvar_bins_key
|
str
|
The key corresponding to the scan variable bins. |
required |
Returns:
| Type | Description |
|---|---|
None
|
The reduced data is stored in the |
Source code in XSpect/XSpect_Analysis.py
experiment
Source code in XSpect/XSpect_Analysis.py
__init__(lcls_run, hutch, experiment_id)
Initializes an experiment instance.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
lcls_run
|
str
|
LCLS run identifier. The LCLS run not the scan/run. Example: 21 |
required |
hutch
|
str
|
Hutch name. Example: xcs |
required |
experiment_id
|
str
|
Experiment identifier. Example: xcsl1004021 |
required |
Source code in XSpect/XSpect_Analysis.py
get_experiment_directory()
Determines and returns the directory of the experiment based on the hutch and experiment ID. It attempts the various paths LCLS has had over the years with recent S3DF paths being the first attempt.
Returns:
| Type | Description |
|---|---|
str
|
The directory of the experiment. |
Raises:
| Type | Description |
|---|---|
Exception
|
If the directory cannot be found. |
Source code in XSpect/XSpect_Analysis.py
spectroscopy_experiment
Bases: experiment
A class to represent a spectroscopy experiment. Trying to integrate methods that incorporate meta parameters of the experiment but did not follow through.