SANS: allow gui to load time sliced event data directly

[Anders Markvardsen]

Add the right of the the Multi-period tick box a input text box for a user to specify time slicing.

If this input text box is filled, and a user has specified an event data set, time-slice the event data

Report from meeting with sans inst scientists.

Until told otherwise time slicing must only be applied to data specified in the Scattering-Sample input box (top left hand corner input file)

Suggest is on the 'Run Numbers' tab to have the interface

Have a tick box called 'Time slicing' to the right of 'Multi-period' tick box, which if clicked allows the following lines on the 'Run Numbers' tab

From (sec) to (sec) Events (muA)

Whole file: 0.0 246.0 46

Input time range: 3.0 12.0 1.32

If slice range selected so small that either over less than one frame of data or less than 0.01 muA of neutrons counted then pop up a warning window telling the user about this, and ignore this reduction, but otherwise continue as normal. The latter is important when processing a batch file.

When time slicing is used add to the end of the workspace name _t3.0_12.0, where in this example 3.0 is the from time and 12.0 is the to time

Richard offered his scripts being used to slice and rebin event data. And pointed the trick used (around line 47) to avoid losing precision on the values of the time since the start of the run.

[Gesner Passos]

Add EventSlicing widget to deal with ISIS SANS event slicing

re #6530

Changeset: 9c0d158b8c04596ea6eacc701403f0b74aead4c7

[Gesner Passos]

Extend SANSRunWindow to deal with EventSlicing widget

re #6530

Changeset: bd29f62c975e4b33a23e028f13684eef10e5dd3a

[Gesner Passos]

Extend SANS Batch mode to support slicing events

re #6530

Changeset: d3acb83353d00d4f0a4c2da8bff9f8d9d81fc771

[Gesner Passos]

Extend SANSRunWindow to support event slicing for Batch Mode

re #6530

Changeset: 8189e75ff3d4dceaa22cacada376ab7f1cb332fd

[Gesner Passos]

Extend SANSRunWindow to support Event Slices for SingleMode

re #6530

Changeset: b8281f65a09aba315723246763e7bd3430e26264

[Gesner Passos]

user file

[Gesner Passos]

input for testing

[Gesner Passos]

The result given by the scientist

[Gesner Passos]

Tester:

To test the default procedure, do the following:

• Open SANS INTERFACE (Menu->Interfaces->SANS ISIS)
• Change the instrument to SANS2D
• Load the MaskFile: Masksans2d_125O_4m_12mm_Brooks
• Change to BatchMode
• Load the ​event_mode.csv file
• Under the EventSlicing groupbox, write the following at the lineEdit: 0-30,5000-10000
• Run 1D Reduce
• As a result, you will have: 17523_batch_t0.0_t30.0_rear, 17523_batch_t5000.0_t10000.0_rear
• The same result you should see changing to SingleMode and executing Run 1D Reduce, but the names will be: 17523rear_1D_1.75_16.5_t0_t30, 17523rear_1D_1.75_16.5_t5000_t10000
• The files are found at cycle_12_5 (SANS2D instrument)

Plot both results (with errors), and change the axes to log(x)/log(y). You will see the same result reported from the scientist:

The attached plot shows that as time increases the intensity of the curve should 
decrease and a ‘bump’ should appear at high Q (the black line is the 1st 30 
seconds and the red line 5000 to 10000 seconds).

[Gesner Passos]

Correct the issue of applying slice to Batch mode

re #6530

Changeset: 84cb0527006ddd465d60689b9d05b6dd7e38dac0

[Gesner Passos]

Disable temporarily the test to reload to allow the Batch mode

re #6530

Changeset: 0e415b95da1d1304a8457948f9ff48a1bf8e41dc

[Gesner Passos]

Disable Event Slicing for LOQ data

currently, LOQ does not have event mode data. It is useless (and may confuse) let the widget available to users.

re #6530

Changeset: 75d49bc76c2bfd806723c0ed76004f505382db49

[Nick Draper]

Moved to r2.6 at the end of r2.5

[Nick Draper]

Moved to the Backlog after R2.6

[Nick Draper]

Moved out to backlog as not enough time in R3.0

[Gesner Passos]

Richard offered his scripts being used to slice and rebin event data.

[Gesner Passos]

8545

[Roman Tolchenov]

It is a duplicate of 8545. This ticket's branch was deleted without merging.

[Stuart Campbell]

This ticket has been transferred to github issue ​7376