Archive for the ‘Nucleonica’ Category

Nucleonica Newsletter 2018

January 1st, 2018

Dear Nucleonica Users,
Hopefully you had a successful 2017 and a good start into the new year. For the Nucleonica Team, a major focus during the past year was on the development of a new Nucleonica landing page. In addition, a new web page (App Portal) has been specifically designed to enhance the navigation through the ever-increasing number of Nucleonica applications and tools. These web pages are based on the principles of Responsive Web Design (RWD) and are optimised for easy navigation across devices (i.e. PCs, tablets and smartphones). Through the use of filters, the user can access all Nucleonica applications and tools (“show all”) or a subset of these applications and tools based on the most recently used (“last used”), most popular (“popular”), type (“applications”, “data”, “knowledge”), etc. enabling you to find your desired application more easily and quickly.
NN_2018Nucleonica Online Applications
Again, we have extensively upgraded and re-written a wide range of applications. In particular, the following new applications have been created: Reduced Decay Schemes, Coincidence Summing Corrections++, Beta Energy Spectra, Beta Dose Rates, App Portal, CoReT Concept Repository Temperatures. Pages 2-9 describe these new developments in more detail.

Dedicated Training Courses
Introductory and advanced courses provide expert training for our users. Specialist courses on nuclear security demonstrate the power of the Nucleonica applications in this area. For more information see pages 12-13.
To enquire about Nucleonica training courses, please send an email to

Karlsruhe Nuclide Chart, new 10th Edition 2018
The new 10th edition of the Karlsruhe Nuclide Chart is in the final stages of preparation. Publication is planned for early 2018 to coincide with the 60th anniversary of the Chart through collaboration with the European Commission’s Joint Research Centre. The new element names recently accepted by IUPAC have been included in the new edition. To order copies of the most recent version of the Chart, please click here. More information can be found on pages 10-11.

We Welcome your Feedback
We value the many suggestions and proposals which we received during 2017 from all our partners and users that helped us improve the platform. Three major new applications on Coincidence Summing Corrections, Beta Dose Rates, and Concept Repository Temperatures (CoReT) have been developed through collaboration with our colleagues from SCK·CEN, CERN, and the Interkantonales Labor (Switzerland), respectively.

On the following pages, this Newsletter informs you in more detail about the above developments.
I would like to thank you for your continued support and best wishes for 2018.
Sincerely yours,
Joseph Magill
Managing Director

More information…
Nucleonica Newsletter 2018
Previous Newsletters
Nucleonica Newsletter 2017
Nucleonica Newsletter 2016
Nucleonica Newsletter 2015
Nucleonica Newsletter 2014
Nucleonica Newsletter 2013
Nucleonica Newsletter 2012

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CoReT: Concept Repository Temperatures

December 18th, 2017

The disposal of high-level radioactive waste in deep geological repositories requires stable and foreseeable physical conditions over very long time scales. During this period, the chemical stability of both the natural and the engineered barriers is governed by thermally activated processes. These in turn are driven by the heat pulse generated by the nuclear decay of waste products. The technical concept to cap the temperature peak in the repository is thus an important aspect for the proof of safety of disposal facilities.
600px-CoReT0With the CoReT (Concept Repository Temperatures) application in Nucleonica, the user can specify the repository configuration (galleries and waste canisters), waste canister properties and thermal properties of surrounding environment and estimate the temperature evolution at various points in the repository as a function of time. Extensive validaiton of the new applicaiton is described in the wiki page.

More inoformation:
CoReT wiki page

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Nuclear Security training course at BfS

November 10th, 2017

Nucleonica Training on Nuclear Security, 7-8 November, BfS Berlin, 2017
This 1-day training course took place at the offices of the Federal Office for Radiation Protection (Bundesamt für Strahlenschutz BfS) in Berlin, during the 7-8 November 2017. This was an intermediate level training course which focused mainly on the Nucleonica core applications with emphasis on Case Studies. A detailed description of nuclear data with particular reference to the various Nucleonica nuclear databases was given. Core applications were demonstrated through the use of Nucleonica applications such as the Radiological Converter, Nuclide Mixtures, Decay Engine++, and Dosimetry and Shielding H*(10).
BetasinTissueStopping of 500 keV beta particels in 1 mm tissue.

The main differences between the
1. Radiological Converter vs. Mass Activity Converter and
2. Dosimetry & Shieldimg++ vs. Dosimetry & Shielding H*(10)
were described in detail. Nuclear security related case studies were given on the identification of suspected nuclear and radioactive materials using Cambio and WESPA++.
In total, 12 persons took part in the course from the various BfS locations in Germany.

More info…
Nucleonica Training Course Proceedings

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Fundamental Constants updated

November 6th, 2017

Nucleonica’s Physical Constants have been upgraded to account for recent 2016 values for fundanmental contacts. Based on state-of-the-art measurements, the updated values of the constants were prepared by the CODATA Task Group on Fundamental Constants. The recently updated constants including the Boltzmann constant, the Planck constant, the electron charge and the Avogadro constant will be included in the next 2018 CODATA publication.

More Information
Nucleonica Physical Constants wiki page
The CODATA 2017 Values of h, e, k, and NA for the Revision of the SI
P.J. Mohr, D.B. Newell, and B. N. Taylor (2016), CODATA recommended values of the fundamental physical constants: 2014, Rev. Mod. Phys. 88, 035009.

Posted in Karlsruhe Nuclide Chart, Nucleonica | Comments (0)

New App Portal

October 25th, 2017

A new web page has been specifically designed to enhance the navigation through the ever-increasing number of Nucleonica applications and tools. The web page “App Portal” is based on the principles of Responsive Web Design (RWD) and Flat Design and is optimised for easy navigation on a variety of devices and window or screen size (e.g. tablets and smartphones). The new page has the following main features:
– Through the use of filters, the user can access all Nucleonica applications and tools (show all) or a subset of these applications and tools based on the most recently used (last used), most popular (popular), type (applications, data, knowledge), etc.
AppPortal-RWD– Icons are colour coded according to the categories: nuclear science applications (blue), data visualisation (green) and knowledge tools (violet). The last used nuclides (brown) have their own catergory (last nuclides).
– Each icon has the form of a box with header (similar to nuclide boxes in a nuclide chart). In the header part, a short name for the application/tool is given (e.g. DE++). In the central part of the icon, the full name of the application/tool is given (e.g. Decay Engine++).
– There is a “Classic” icon which allows users to access the previous version of the App Portal i.e. Nucleonica Classic applications page. This will be supported for a limited period to allow users to become familiar with the new App Portal page.

More information…
App Portal wiki page

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Karlsruhe Nuclide Chart Online (KNCO++) Revisited

August 22nd, 2017

The Karlsruhe Nuclide Chart Online (KNCO++) has been upgraded to provide the following new features:
– The colours used in the KNCO++ have been historically based on the modes of decay. A new colour scheme has been introduced which shows, in addition, the half-lives of the nuclides. The user can toggle between the decay modes and half-lives charts to obtain the complimentary Chart views.
KNCO_BG2Karlsruhe Nuclide Chart Online, KNCO++, with new features.
– The user can now select various pre-defined background colours to enhance the visual impact of the Chart.
– When the mouse cursor is placed over a nuclide, the nuclide box is highlighted and magnified (see example of U-238 above). On clicking on the highlighted nuclide, the Chart is zoomed to the nuclide selected thus provided a useful navigation tool.
– Literature references for the nuclide data are now availabe. A mouse right click on a nuclide opens a context menu from which a link to the references can be selected.

More info…
Karlsruhe Nuclide Chart Online wiki page

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Virtual Cloud Chamber revisited

August 7th, 2017

The Virtual Cloud Chamber has been updated. The previously used Cortona VRML plugin viewer used to view the GEANT4 3D simulations is no longer supported by modern browsers and has been discarded. In its place, the VMRL WRL files are now converted from WRL to X3D HTML format using a tool from InstantReality. A major advantage is that the converted files can now be shown directly in the browser – without the use of a plugin.
VCC-IR10 MeV photons incident on a lead target showing the production of electron -positron pairs in the presence of a magnetic field.

Animations can also be generated by the Virtual Cloud Chamber but these cannot currently be shown directly in the browser. To view the 3d animations, the user should download the Instant Reality player (instantplayer) for this purpose.

More info…
Virtual Coud Chamber wiki page
InstantReality downloads

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Nucleonica Get a Quote

August 3rd, 2017

It is now possible for new users to obtain a quote for a Nucleonica licence directly from the Nucleonica landing page. The new application allows the user to select the product (Nucleonica portal, Karlsruhe Nuclide Chart Online), their organisation type (academic, government, commercial) and the number of licences being requested.
GaQAdditionally, after entering some personal details, a pdf quote can be downloaded for the user’s purchasing / finance department. After issuing a purchase order (PO) the requested product will be invoiced.

More information
Get a Quote wiki page

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Problem with the decay chain of Pu-244 and the JEFF database

July 25th, 2017

Qu.(from M.R. KTE Karlsruhe): We encountered a problem while reproducing the decay chain of Pu-244.
The first decay is an α-decay to U-240 followed by a β-decay to Np-240. The question is if U-240 decays to the metastable or directly to the ground state of Np-240. In the universal nuclide chart application in Nucleonica it shows a difference between the JEFF (Np-240) and ENDF (Np-240m) databases.
When using the Decay Engine++ application only the Np240 ground state is shown. The (more like a juristical) problem is that our regulations only include the metastable state.
Do you have additional information about the decay of U-240? Which one is the physical correct daughter?

Ans.(Nucleonica Team): Indeed there is an error in the JEFF3.1 database. You can also see this clearly in the KNCO application where you see that U-240 decays to Np-240m only. In view of this, we have changed the data in JEFF3.1 for U-240 – allowing only the decay to Np-240m. This you can see in the Nuclide Datasheets.
If you now redo the decay calculation for Pu-244, you will see the Np240m is much more important than Np240.
Thanks again for pointing this out and hopefully it did not cause to much inconvenience. It just shows once again how important it is to have a number of databases for comparison purposes.

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New Blog category for Forum and FAQ posts

July 18th, 2017

From 2017, Forum and FAQ posts will be hosted together in a new Blog category FAQs.
Pre-2017 Forum and FAQ posts have been moved to Wiki page FAQs.

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