Level scheme mode

In level scheme mode a level scheme is drawn like in the example below:

The arrows at the bottom can be pulled horizontally by the arrow-cursor to adjust the width of the different areas of the level scheme - the spin/parity label, the gammas area and the energy label.

If the decay scheme contains many gammas, it would become too crowded if they were all displayed at once. Therefore, the program displays only one row of gammas (called 'layer') across the gammas area, and other transitions are hinted with a 'v' at the initial level. The Toolbar buttons are provided to facilitate browsing through these layers.

The Menu bar in drawing mode has the following entries:

Explanation of the menus (if an equivalent item in the toolbar is available, this will be displayed with the explanation):

File

Get Reference

Decode NSR Keynumber, search for NSR Authors

Select Nucleus

Get nuclide data

Open local file...

Open a local data file

Save

Not yet implemented

Save as...

Not yet implemented

Close

Close the active window

Print

Print current view

Print preview

Print preview current view

Printer setup

Change printer or properties of current printer

file1.enx

.....

Open recently used files

Exit

Exit VuENSDF

Edit

Undo

Undo the last operation

Set Scale...

Set vertical scale

Set Layer...

Set layer for gamma display

Operation

Coincidence

Display coincidences with selected gamma(s)

Set Energy Gate...

Set energy gate for coincidences

Logical operations...

Perform logical operations with spectra

Data

Data set...

Select data set

Band...

Select band in current data set (clicking on the right mouse button gives the same result)

AddView

Level Scheme

Display level scheme of current selection

Table

Display table of current selection

Plot

Not yet implemented

Editor

Edit current selection

Configuration

Save the size of the current view

Save font sizes, width etc. to the VUENSDF.INI file

Set level font size

Set font size of energy and spin/parity labels

Set gamma font size

Set font size of gamma labels

Set decay font size

Set font size of T1/2 and other information primarily for decay data

Reset to default settings

Reset all options above to the default values

Nuclear data source >

Select: Internet database/local database. On selecting local database the user has to locate it on the disk

Reference data source >

Select: Internet database/local database. On selecting local database the user has to locate it on the disk

Debug mode

Debug mode on/off (in debug mode all operations performed are logged in the file LOG)

Window

Cascade

Make windows overlapping

Tile

Tile all windows side by side

Arrange Icons

Arrange icons of iconized windows at the bottom of the main window

Close All

Close all open windows

Data set (or band) 1

.....

List of currently opened windows

Help

About

VuENSDF version information, authors etc.

Report problem

Requires network connection. Allows the user to report problems with VuENSDF or the databases directly to the Berkeley server

VuENSDF news

Requires network connection. Latest news about the program and databases

Help

VuENSDF Help function

Access to the most frequently used commands have been collected in a row buttons with symbols, the Toolbar. Meaning, from left to right:

Get nuclide data

Undo last operation

Show no gammas

Show all gammas

Show next higher layer of gammas

Show next lower layer of gammas

Automatic scaling (vertical)

Increase vertical scale

Decrease vertical scale

Select arrow cursor (for selecting objects)

Select hand cursor (for moving display)

Show parent data (for decay data sets)

Show data legend (for decay data sets)

Display coincidences with selected gamma(s)

Get literature reference

About VuENSDF (version information)

VuENSDF help

With a complex decay scheme, it may be difficult to see which gammas populate and depopulate a level. In order to facilitate this, there is a level selection option: control-click on the level energy with the arrow-cursor:

The level is then shown in blue, and only transitions feeding or depopulating the level are shown.

Just clicking a level (without pressing the control key) will select a level (this feature will be used in later implementations). Gammas can be selected in the same way, i.e. by clicking on them with the arrow cursor. Selecting gammas in this way may be used for examining coincidence relations.

Selected gammas or levels are deselected by clicking them again. Any selection is reset by clicking on an area of the level scheme drawing that is neither a level or a gamma. The previous state can always be obtained with the Undo button ( ).

All supported commands are available as entries in the Menu bar, and some of the most used commands are available in the Toolbar. In addition, there are some useful mouse-shortcuts, of which some have been described above:

Click on a gamma

Gamma is selected and shown in purple

Click on a level

Level is selected and shown in blue

Ctrl-click on a level

Highlight level in blue and show only populating and depopulating gammas

Click on selected gamma or level

Deselect gamma/level

Click on empty part of drawing area

Deselect all gammas/levels

Click anywhere with right mouse button

Open the band-selection panel

Shift-click anywhere with right mouse button

Open the data set selection panel

Shift-click on an item in a data set list or band list

The data set or band is selected, but a panel for selecting the desired view (level scheme, table, edit) is displayed

Comments to: F Chu (program), P Ekström (manual)

All contents copyright © 1996, Isotopes Project, Berkeley Lab. All rights reserved.
Revised: