I. What is JANIS?

A. Introduction

Nuclear data are fundamental to the development and application of nuclear science and technology. The knowledge of these data is required in all fields where radioactive materials and nuclear fuels are present. This represents a wide range of applications. Nuclear data are thus needed for a variety of users including reactor and fuel cycle physicists, engineers, biologists and physicians.

Nuclear data involve radioactive decay properties, fission yields and interaction data over a wide energy range and for different projectiles (cross-sections, resonance parameters, energy and angular distributions…). These data are structured into standardised formats to allow their exchange among users and their treatment with specialized computer codes. Specific formats exist for experimental data (EXFOR), evaluated data (ENDF, ENSDF) or processed data (PENDF, GENDF) and relational databases are used to store and disseminate the data. However, the quantity of data required is so large that it is not always easy for an end-user to access the information needed for his specific application.

Java-based Nuclear Information Software (JANIS) is a display program designed to facilitate the visualization and manipulation of nuclear data. Its objective is to allow its user to access numerical values and graphical representations without prior knowledge of the storage format. It offers maximum flexibility for the comparison of different nuclear data sets.

B. What’s new in version 3.2

This release introduces the following main changes:

Ø Display of evaluated covariance data (MF33)

Ø Support for additional NJOY covariances formats: COVFILS (ERRORR) and BOXER ( COVR)

Ø New highly compressed format. This new format is used to store data files on the DVD.

All evaluated libraries in the NEA remote database have been processed in a consistent way using NJOY. The following derived data are now available:

Ø Gas production cross sections (MF3/MT203-207)

Ø KERMA cross sections (MF3/MT301,443)

Ø Damage cross sections (MF3/MT444)

Ø Thermal scattering cross sections (MF3/MT221-250)

New libraries in NEA remote database:

Ø CENDL-3.1 (2009)

Ø RUSFOND (2010)

Ø TENDL-2009 TALYS evaluated nuclear data library

Corrected bugs and improved functionalities:

Ø Selection tree ergonomy: multiple selection, ‘*’ and ‘/’ keys to expand/collapse nodes and subnodes.

Ø Decreased memory usage when displaying EXFOR subentries with thousands of points.

Ø Comparison of EXFOR (x,3n) reaction was done with ENDF MT16 (x,2n) instead of MT17

C. History

JANIS is the successor to JEF-PC, a software developed in the eighties and nineties by the OECD Nuclear Energy Agency, the CSNSM-Orsay and the University of Birmingham. Basically, all the features available under JEF-PC were reproduced (cross-section display in pointwise and groupwise format, decay data and fission yield display) and several others were added (resonance parameters, energy and angle distributions, cross-section uncertainties…). Additionally, all the former limitations were removed (number of data sets displayed, etc.) and the new software is more flexible and ergonomic. JANIS users can view their own evaluated or processed data starting from any ENDF formatted file or from GENDF libraries. As JANIS is written in the Java language, it runs on almost all computer operating systems (UNIX, Windows and Macintosh).

The first version of JANIS (1.0), released in October 2001, was used by more than 700 users around the world.

Versions 2.0 and 2.1 have introduced:

Ø Management of the data through a relational database. One of the limitations of JANIS 1.0 was its structure of data. The basic data (contained in the original ENDF and EXFOR files) had to be converted into an internal structure (serialized Java objects). This option allowed a very quick access to the data. However, the data could not be easily updated and the structure was highly dependent on the classes used to generate the data. In particular, the structure of data became obsolete when these classes were updated. To solve this problem, a new strategy was implemented in versions JANIS-2.0 and above. The software accesses directly the text files (eventually zipped in order to reduce the required storage size) and the tables of contents of these files (the ENDF dictionary for instance) are contained in a relational database. This enables both quick access to the data and a better separation between the methods (classes) and the data itself.

Ø Access to the CINDA database and link between CINDA and EXFOR. Basically, the features of CD-CINDA were implemented in JANIS and a link to the EXFOR works was added.

Ø Access to NUBASE data.

Ø Generalization of the computational features available in conjunction with interaction data; these features (such as linear combinations, ratios of data) were restricted to cross-section data. It is now possible to perform more advanced combinations such as a product of cross sections with energy and angular distribution.

Ø Access to centralized data (available on the NEA server) through the widely used HTTP protocol. This allows most users to take advantage of NEA remote databases.

Version 3.0 has introduced:

Ø Access to original EXFOR data: previous versions of JANIS were using a simplified EXFOR format, named EXFOR Computational Format which was the result of a conversion of EXFOR content. This conversion was losing a great part of available experimental data, mainly because the Computational Format was limited to cross-sections, angular/energy distributions. By reading the original EXFOR format directly, experimental data available in EXFOR can now be displayed by JANIS (fission yields for example).

Ø Vectorial and customizable plots: the plotting component has been completely rewritten to be vectorial instead of rasterized. This means that previous plots were made by drawing pixels directly, whereas in version 3.0 plots are drawn with lines and shapes. This allows setting line style and width for continuous plots but also to increase quality of exported images and print. Rasterized plots (in pixels) were fine and fast for screen display but pixels were visible on prints because resolution of printers is much higher than resolution of screens. Vectorial plots also allow saving them in truly vectorial formats like Postscript (PS/EPS) and Windows Metafiles (WMF/EMF). These exported plots can be further scaled without losing quality, the Windows Metafile formats being especially interesting for inclusion in Microsoft Word documents.

Ø Tabular view of almost all data: it is now possible to obtain a tabular display of data like angular distributions or energy/angle distributions. This functionality has been requested for a long time. As JANIS tables are exportable in CSV text file some users take profit of JANIS nuclear formats parsing implementation to use the data in their own applications.

Version 3.1 has introduced:

Ø Display of photon production (MF12-15)

Ø Continuous Beta spectra (MF8/MT457); implementation of BTSPEC (A. Tobias et al.)

Ø Isobaric fission yields, i.e. distribution in terms of Z or N for a given A. Parent fission yields have been visually reorganized.

Ø New tool to compare EXFOR data with evaluated libraries or evaluated libraries between them. This tool replaces the old “Compare explorer”

II. First steps

A. Content of JANIS 3.2 DVD

The software and a selection of recent nuclear data were packaged to produce the new release JANIS-3.2. The selection of data includes:

Ø evaluated nuclear data libraries processed at 300 K (see detail below);

Ø experimental data (EXFOR);

Ø bibliographical data (CINDA);

Ø nuclear structure data NUBASE-97 and NUBASE-2003.

General purpose libraries (incident neutron)

Library	Version	Year	Description
JEF(F)	3.1.1	2009	381 materials with updated evaluations for Np-237, Pu-239, O-16, Zr-91, Zr-96, and fission products. More information is available in the JEFF Report 22.
	3.1	2005	381 materials (7 natural elements: C, V, Zn, Ga, Os, Pt, Tl). More information is available in JEFF Report 21.
	2.2	1993	313 materials (14 natural elements: C, Mg, Si, Cl, K, Ca, Ti, V, Cu, Ga, Zr, Mo, Cd, Pb). More information is available in the JEFF Report 17.
ENDF/B	VII.0	2006	393 materials (3 natural elements: C, V, Zn)
ENDF/B	VI.8	2001	329 materials (16 natural elements: C, Mg, Si, S, Cl, K, Ca, Ti, V, Ga, Zr, Mo, Cd, In, Hf, W)
JENDL	3.3	2002	337 materials (2 natural elements: C, V)
JENDL	4.0	2010	406 materials (1 natural element: C)
CENDL	3.1	2009	240 materials (14 natural elements: S, Cl, K, Ca, V, Cu, Zn, Ge, Ag, Cd, Sn, W, Hg, Tl)
BROND	2.2	1993	121 materials (17 natural elements: He, C, Si, Cl, Cr, Fe, Ni, Cu, Zn, Zr, Sn, Sm, Gd, Re, Os, Ir, Pb)
RUSFOND	2010	2010	686 materials (6 natural elements: C, V, Zn, Os, Pt, Tl)

Thermal scattering libraries (incident neutron)

Library	Version	Year	Description
JEF(F)	3.1	2005	9 bound-nuclei in compounds of hydrogen, beryllium, carbon, manganese. More information is available in JEFF Report 21.
JEF(F)	3.0	2002	5 bound-nuclei in compounds of hydrogen, beryllium, carbon
ENDF/B	VII.0	2006	20 bound-nuclei in compounds of hydrogen, beryllium, carbon, oxygen, aluminium, iron
ENDF/B	VI.8	2001	15 bound-nuclei in compounds of hydrogen, beryllium, carbon

Fission yields

Projectile	Library	Version	Year	Description
Neutron	JEF(F)	3.1.1	2009	19 actinides from Th (Z=90) to Cm (Z=96) with minor modifications compared to JEFF-3.1, more information is available in the JEFF Report 20.
		3.1	2005	19 actinides from Th (Z=90) to Cm (Z=96). More information is available in the JEFF Report 20.
		2.2	1993	19 actinides from Th (Z=90) to Cm (Z=96)
	ENDF/B	VII.0	2006	31 actinides from Th (Z=90) to Fm (Z=100)
		VI.8	2001	31 actinides from Th (Z=90) to Fm (Z=100)
	JENDL	3.3	2002	12 actinides from Th (Z=90) to Am (Z=95)
Spontaneous	JEF(F)	3.1.1	2009	This sub-library is part of the latest JEFF-3.1.1 distribution. However, the spontaneous fission yields data are the same in both JEFF-3.1/FY and JEFF-3.1.1/FY sublibraries.
		3.1	2005	3 actinides: Cm-242, Cm-244, Cf-252. More information is available in the JEFF Report 20.
		2.2	1993	2 actinides: Cm-242, Cf-252
	ENDF/B	VII.0	2006	9 actinides: U-238, Cm-244, Cm-246, Cm-248, Cf-250, Cf-252, Es-253, Fm-254, Fm-256
		VI.8	2001	9 actinides: U-238, Cm-244, Cm-246, Cm-248, Cf-250, Cf-252, Es-253, Fm-254, Fm-256

Activation libraries

Projectile	Library	Version	Year	Description
Neutron	JEFF	3.1	2005	Data up to 20 MeV for 774 materials (69 metastable states) from EAF-2003. More information is available in JEFF Report 21.
Neutron	EAF	2007	2007	Data up to 60 MeV for 816 materials (77 metastable states)
Proton	PADF	2007	2007	Data up to 150 MeV for 2355 materials (527 metastable states)

Other special purpose libraries

Projectile	Library	Version	Year	Description
Neutron	IRDF	2002	2005	50 materials for dosimetry application
	IRDF	2002-MG	2005	IRDF-2002 in groupwise ENDF-6 format
	FENDL	E-2.1	2004	71 materials for fusion application
	FENDL	E-2.1-MG	2004	FENDL/E-2.1 in groupwise GENDF format
	JENDL	AC-2008	2008	Data up to 20 MeV for 79 actinides from Ac (Z=89) to Fm (Z=100)
	JENDL	HE-2007	2007	Data up to 3 GeV for 106 nuclei
	TENDL	2009	2009	TALYS-based data up to 60 MeV (200 MeV when T_1/2 > 1000 s) for 2385 nuclei from Li (Z=3) to Ds (Z=110)
Photon	ENDF/B	VII.0	2006	Data up to 150 MeV for 163 nuclei from H (Z=1) to Am (Z=95)
	JENDL	PD-2004	2004	Data up to 140 MeV for 68 nuclei from H (Z=1) to Np (Z=93)
	TENDL	2009	2009	TALYS-based data up to 60 MeV or 200 MeV for 1165 nuclei from Li (Z=3) to Ds (Z=110)
Proton	JEFF	3.1	2005	Data up to 200 MeV for 26 nuclei. More information is available in JEFF Report 21.
	ENDF/B	VII.0	2006	Data up to 150 MeV for 48 nuclei
	ENDF/B	VI.8	2001	Data up to 150 MeV for 35 nuclei
	JENDL	HE-2007	2007	Data up to 3 GeV for 106 nuclei
	TENDL	2009	2009	TALYS-based data up to 60 MeV or 200 MeV for 1164 nuclei from Li (Z=3) to Hs (Z=108)
Deuteron (H-2)	ENDF/B	VII.0	2006	3 nuclei (He-3, Li-6 added)
	ENDF/B	VI.8	2001	1 nucleus: H-3
	TENDL	2009	2009	TALYS-based data up to 60 MeV or 200 MeV for 1122 nuclei from Li (Z=3) to Hs (Z=108)
Triton (H-3)	ENDF/B	VII.0	2006	3 nuclei (He-3, Li-6 added)
	ENDF/B	VI.8	2001	1 nucleus: H-3
	TENDL	2009	2009	TALYS-based data up to 60 MeV or 200 MeV for 1122 nuclei from Li (Z=3) to Hs (Z=108)
Helion (He-3)	ENDF/B	VII.0	2006	2 nuclei: He-3, Li-6
	TENDL	2009	2009	TALYS-based data up to 60 MeV or 200 MeV for 1127 nuclei from Li (Z=3) to Hs (Z=108)
Alpha (He-4)	JENDL	AN-2005	2005	17 isotopes of Li, Be, B, C, N, O, Na, Al, Si
	TENDL	2009	2009	TALYS-based data up to 60 MeV or 200 MeV for 1163 nuclei from Li (Z=3) to Hs (Z=108)

Radioactive decay

Library	Version	Year	Description
JEF(F)	3.1.1	2007	3852 nuclei (768 metastable states) with revised data for 145 nuclei. More information is available in the JEFF Report 20.
	3.1	2005	3852 nuclei (768 metastable states). More information is available in the JEFF Report 20.
	2.2	1993	2345 nuclei (505 metastable states)
ENDF/B	VII.0	2006	3838 nuclei (734 metastable states)
ENDF/B	VI.8	2001	979 nuclei (174 metastable states)
JENDL	FPDD-2000	2000	1087 fission products (197 metastable states)

Experimental data

Library	Version	Year	Description
EXFOR	2010-06-10	2010	Experimental nuclear reaction database compiled by the international network of Nuclear Reaction Data Centres (NRDC)

The DVD has the following structure:

Ø Directory “data”: contains the basic files, e.g. evaluated files, EXFOR works, etc.

Ø Directory “database” contains the relational databases: one for EXFOR, one for CINDA and a third for all other data libraries.

Ø Directory “groups” contains commonly used groups definitions that can be used for the weighting procedure.

Ø Directory “software” contains the JANIS and database executable jar files.

Ø Directory “java” contains the SUN Java runtime environment for Windows and Linux.

Ø Directory “mac_os_x” contains a bundle package for Mac OS X users.

Ø Files “janis.bat” for Microsoft Windows platform and “janis.sh” for UNIX and Linux platforms can be used to launch JANIS.

Ø File “readme.txt” contains the latest news.

Ø Directory “documentation” contains this users’ manual.

B. Requirements and compatibility

1. Java

A Java Runtime Environment, JRE, version 1.4 or higher is required. Versions 1.5 or 1.6 are strongly recommended to benefit from performance and usability improvements introduced by recent JRE versions. At time of writing we use mainly 1.5 and 1.6, but 1.4 is still supported.

For Windows, Linux or Solaris a JRE can be downloaded freely from Sun website: www.java.com.

For Mac OS X, see developer.apple.com/java/faq/.

For other UNIX brands, refer to their respective website.

JANIS is developed under Windows so is heavily tested for this platform. But we do frequent tests on Linux, and the server side part (the NEA remote database) is also run on this platform. Mac OS X support is fairly recent so may suffer from little integration problems due to the lack of tests. If you encounter such problems you can report them by mail (janisinfo@oecd-nea.org).

2. Hardware configuration

The minimum required hardware configuration is:

Ø 1 GHz processor.

Ø 200 Mbytes of RAM for JANIS (N.B. performances depend strongly on the available RAM, and you should keep in mind the RAM used by your OS and other applications you use, hence 512 Mbytes of RAM or more is preferable).

Ø Monitor with a resolution of 1024 x 768, 256 colours.

Ø DVD reader.

Ø Optionally 2 GB to copy the full DVD content on hard-drive (for better performances), 800 MB to install the software plus the databases and accessing data files from the DVD, or only 10 MB to copy the software and access the databases and data on the DVD.

Ø Optionally a printer for printing plots and tabular data.

C. Installation

To obtain optimal performances from JANIS you should install the software and the databases on your local hard drive. Simply copy the whole DVD content to your local hard drive in a folder of your convenience (C:\Janis-3.2 for example).

You can also run JANIS directly from your DVD drive and access packaged databases from the DVD, but performances will not be optimal.

D. Starting JANIS

1. Windows (all versions)

Double click on janis.bat file.

2. Linux/Unix

Type janis.sh in a command prompt (Terminal) at the root of the DVD after having mounted the DVD drive if necessary.

3. Mac OS X

Double click on JANIS bundle package in mac_os_x folder.

III. General overview

A. The “Browser” window

When the software is started the main window named “Browser” displays the components shown in Figure 1.

browser_numbers

Figure 1: Browser

This window contains the following components:

1. Chart of Nuclides: provides access to nuclides, the displayed chart depends on your selection in the “Database Tree” (component #5)

2. Legend for the Chart of Nuclides: depends on the category of chart displayed, it enables to customize the “Chart of Nuclides”. The drop-down contains the available nuclear properties that can be used to filter nuclides. Furthermore, you can change the colour associated with each property by clicking on the colour button.

3. Parity filter: this drop-down allows to display all isotopes on Chart or the ones with odd/even Z/N values

4. Nuclide Explorer: elements available in database for the selected category of data are listed by ascending Z number. Expand one element to see the list of isotopes.

5. Database Tree: all loaded databases are displayed here. This tree allows selection of one database, evaluation or library, and category of data. The “Chart of Nuclides” is updated to reflect the node selected in this component

6. Zoom controls: the drop down list and the slider allows zooming the Chart of Nuclides

The menu is made of the following items:

Ø File;

Ø Database;

Ø Search;

Ø Chart;

Ø Help.

The status bar displays:

Ø the name of the currently selected nuclide (along with symbol, Z, N and A number) on the left

Ø the name of the nuclide under the mouse cursor in the middle

Ø the Chart of Nuclides zoom level on the right

1. Database Tree

databasetree

Figure 2: Database Tree

This tree lists all loaded databases with the following icons:

Ø : the database is connected; you can expand this node to see the database content

Ø : the database if disconnected; clicking the expand icon (a plus sign on Windows) will launch the connection

Ø : database connection is in progress, wait for the final state

Ø : the last database connection attempt has failed

By expanding nodes you can select a Datatype, a Dataset and a Category.

Selecting a Category will display its Chart of Nuclides and the list of elements, isotopes or compounds in the Nuclide Explorer component.

Right-clicking on a Database node will show this popup menu:

databasetree_popup

Figure 3: Database Tree popup menu

This popup up menu gives you access to:

Ø Load: display the Database Load dialog (which can also be found in menu File), see chapter VIII.A

Ø Connect: try to connect to the selected database (an alternative way of doing this is by expanding a database node which is in disconnected state () or in error state ()

Ø Disconnect: disconnect a connected database

Ø Remove: remove this database from the tree.

If you have inadvertently removed a database provided in initial settings of JANIS refer to chapter IX.D.1 to load the missing database.

2. Chart of Nuclides

The Chart of Nuclides shows the available nuclei in terms of their atomic number, Z, and neutron number, N. Each box represents a nuclide.

chartview

Figure 4: Chart of Nuclides

a) Navigation

The chart of Nuclides can be navigated using the following means:

Ø Keyboard arrows, first click on the Chart to give it the keyboard focus

Ø Horizontal and vertical scrollbars

Ø Buttons in the upper-right and lower-left corners to move the chart diagonally

Ø Mouse dragging: select any position on the chart and move the mouse while holding down the left button.

Ø The Goto dialog: see chapter III.A.2.c)

A zoom of the chart centred on ¹⁰⁴Ag is shown in Figure 5. The zoom level can be increased further with the Zoom Drop-down or with the Zoom Slider.

chartview_zoom

Figure 5: Browser with Chart of Nuclides centred on ¹⁰⁴Ag

The “Chart” menu allows customizing the Chart:

Ø Grid: to toggle the visibility of the grid ;

Ø Magic lines: to toggle the “magic lines”. These are defined for stables nuclei with even N and Z values of 2, 8, 20, 28, 50, 82 and 126 ;

Ø Headers: to toggle the visibility of the Z and N legends.

b) Nuclides properties displayed

For highest zoom levels, depending on the category of data selected, some nuclear properties are displayed for each nuclide, see Table 1. The levels are:

Ø 1-10: only the background colour is drawn

Ø 11-25: adds the first metastable state square

Ø 26-40: adds the symbol

Ø 40-100: adds the atomic number

Ø Greater than 100: adds the charge and the nuclear properties

Table 1: Nuclear properties displayed by category

Category	Nuclear properties displayed
Cross Sections	Cross section measured at 2200m/s Resonances integral
Radioactive decay data	Half-life, spin/parity Decay modes Branching ratio
Fission yields data	Half-life, spin/parity Decay modes Branching ratio
NUBASE Basic properties	Half-life, spin/parity Mass excess (excitation energy for metastables) Decay modes Branching ratio
EXFOR	Number of experimental reactions (approximate value)

If several isotopic states are available for a given isotope, then ground state properties are displayed on the right and first metastable state properties are displayed on the left. Note that if more than one metastable state is available then the Chart of Nuclides will only display the first one but the Nuclide Explorer will list all available states. Double clicking on such isotope will open all available states in a Renderer window, while double clicking in Nuclide Explorer tree will open only the selected state.

Without changing the Chart zoom level you have access to these properties by right clicking on any nuclide. This will bring a popup window displaying all available properties for the selected nuclide.

Figure 6: Chart of Nuclides popup

c) Goto dialog

The Goto dialog (Menu Chart>Goto… or CTRL-G keyword shortcut) allows positioning quickly the Chart of Nuclides on any displayed isotope.

goto

Figure 7: Goto dialog

You do not need to specify all parameters at once (Z, A, N number, name or symbol), anyone alone is sufficient.

Note that the message “No nucleus matches parameters” is displayed when there is no data for the selected parameters.

d) Saving Chart of Nuclides

Menu Chart>Save as… allows you to save the currently displayed Chart of Nuclides as a picture file, at the current zoom level, with the current parity filter and colour settings.

Note that due to Chart size, high zoom level will produce very big picture files so you will probably have to consider using a vectorial format like EMF (Windows Enhanced Metafile). Trying to generate a too big PNG file will cause an Out Of Memory error.

See chapter C.4 for image saving options.

3. Nuclide Explorer

The Nuclide Explorer component lists all isotopes displayed on the Chart of Nuclides. Isotopes are grouped by Elements, sorted against Z and A number.

Compounds, which cannot be displayed by the Chart of Nuclides, can be found at the end of each elements list.

Double clicking on one isotope will open the Renderer window. (Almost equivalent to double clicking on the matching isotope on the Chart of Nuclides, see remark on metastable states in chapter III.A.2.b)).

When selection node changes in the Database Tree, the Nuclide Explorer is refreshed

B. The “Renderer” window

The “Renderer” window is the major window for data displaying in JANIS. One and only one Browser window is displayed but you can open more than one Renderer window at a given time.

renderer_numbers

Figure 8: Renderer

This window is composed of the following components:

1. Display panels

2. Selection Tree

3. Display panel parameters

4. Data parameters

The menu of the Renderer offers the following items:

Ø File

Ø Tools

Ø Selected

Ø Help

1. Display panels

This area contains all displayed data. Each type of display will be contained in one tab, comparable data being displayed in the same tab.

Right-clicking on a tab title will bring a popup menu which allows closing the selected tab (“Close” menu), others tab (“Close Others” menu) or all tabs (“Close All” menu).

tabbed_pane_popup

Figure 9: tabbed panel popup menu

2. Selection Tree

This tree-table displays all data that can be displayed in this Renderer window.

Ø First column: contains tree nodes for these data

Ø Second column: not empty if the corresponding plot is displayed, and is a button that links to another panel enabling the modification of the data display settings.

Ø Third column: contains checkboxes allowing to choose which data to display

There are currently five types of display available:

Ø [P]: graphical plots: cross-sections, energy and angular distributions, fission yields, decay spectra…;

Ø [T]: tabular data: resonance parameters, X, Y representation of cross-sections or discrete decay spectra…;

Ø [t]: simple tabular data, like tabular data but with less options;

Ø [I]: for information text (decay data constants, general information, EXFOR subentries, …)

Ø [D]: decay paths.

Each line in selection tree provides zero or more types of display, select a checkbox to display data in the display panes area. Alternatively, press the corresponding key when there is a selection (single or multiple).

When multiple variable graphs are drawn and more than one variable value is set, the colour button is made of several colours: one for each plot.

When you right-click on a line in the Selection Tree, a popup menu offering the following options is shown:

selectiontree_popup

Figure 10: Selection Tree popup

Ø “Compare with Evaluated data” to open the Compare with Evaluated data dialog see below;

Ø “Searches” to launch a pre filled search on available databases;