Gerda Pfennig, “Mother” of the Karlsruhe Nuclide Chart, died on 16 February 2017 aged 86.
Born on 8 Dec. 1930, Gerda Pfennig received her training in chemistry at the Fachschule Fresenius, Wiesbaden. In 1958, she joined the Institut für Radiochemie (Institute of Radiochemistry) of the Kernreaktor Bau- und Betriebsgesellschaft mbH (Nuclear Reactor Building and Operating Company) in Karlsruhe. The first edition of the Karlsruhe Nuclide Chart, printed in 1958 in the form of a wall chart, was created by Walter Seelmann-Eggebert and his assistant Gerda Pfennig. Since this first edition, Frau Pfennig has co-authored all editions of the Chart until the 9th Edition in 2015. During the period 2006-2012 Frau Pfennig was working at the European Commission’s Institute for Transuranium Elements on the 7th (2006) and 8th (2012) editions of the Chart. From 2012-2015 she was actively involved with Nucleonica GmbH on the 9th edition of the Chart. Her life was marked with a passion for music, tennis and the nuclide chart.
In the field of nuclear data Frau Pfennig was both conscientious and dedicated and an inspiration to her colleagues. We will always keep her in our memories.
Archive for the ‘Karlsruhe Nuclide Chart’ Category
Gerda Pfennig, “Mother” of the Karlsruhe Nuclide Chart, died on 16 February 2017 aged 86.
The Reduced Decay Schemes is a new application for displaying the reduced decay schemes of selected nuclides.
The nuclear data contained in the nuclide boxes (in the Karlsruhe Nuclide Chart for example) is concise due to the very limited space available. In order to obtain maximum benefit from the nuclide chart, it is important to know how to interpret the box contents correctly. In the new application, the contents of the nuclide boxes are explained in detail by making reference to the nuclide reduced decay scheme in order to relate the box contents with information on energies of emitted particles with the energy levels in the nucleus in the decay scheme diagram. Additional data has been taken from the Nuclear Data Sheets and Nucleonica’s Datasheets.
To improve understanding, some transitions not mentioned in the box are added and indicated as dotted lines. Corresponding data is also indicated in grey. Radiations with a low emission probability indicated by dots or brackets in the nuclide box are also drawn with dotted lines.
Additionally a gamma spectrum of the particular nuclide is shown (generated by Nucleonica’s Gamma Spectrum Generator application).
Dear Nucleonica Users,
In 2016, we continued with our mission to build the most innovative technical resource for knowledge creation & competence preservation for the worldwide nuclear science community. Our vision is to provide scientists, engineers and technical personnel in the field the best software solutions and, in addition, create a sustainable home for the nuclear science community on the web.
Nucleonica Online Applications:
During the past year, we have again extensively upgraded and re-written a wide range of applications. In particular the following new applications have been created: Photon Dose Rate Constants, Radiological Converter, and Dosimetry & Shielding, H*(10). Pages 2-4 describe these new developments in more detail.
Nucleonica Dedicated Training Courses:
In the area of training, 2016 has been a busy year for the Nucleonica team. In May there was a 2-day training course in CERN. This was followed by 3 training courses at the WAK / KIT in Karlsruhe and a course at JEN mbH on the Fz-Juelich site. In November, a training course was held at the BfS premises in Berlin with emphasis on nuclear security and nuclear material identification. For more information see pages 11-13.
If you would like to book a dedicated training course for your organisation 2017, please make sure to register your interest as soon as possible. To enquire about Nucleonica training courses, please send an email to firstname.lastname@example.org.
Karlsruhe Nuclide Chart:
We continue to provide updates to the Karlsruhe Nuclide Chart through a collaboration with the EC’s DG Joint Research Centre. The new element names recently accepted by IUPAC have been included in the Karlsruhe Nuclide Chart Online. To order copies of the most recent version of the Chart, please place your order here. More information can be found on page 10.
We Welcome your Feedback:
Finally, thanks to all our partners and users for the many suggestions and proposals which we received during 2016. Many of these have been discussed in our Forum and where possible the relevant application has been updated. A particular example here was the request to update the Dosimetry & Shielding and related applications to include the internationally standarised ambient dose equivalent H*(10).
On the following pages, this Newsletter informs you in more detail about the above developments. Hopefully you find this of interest.
Finally, thanks for your continued support and best wishes for 2017.
Nucleonica Newsletter 2017
Nucleonica Newsletter 2016
Nucleonica Newsletter 2015
Nucleonica Newsletter 2014
Nucleonica Newsletter 2013
Nucleonica Newsletter 2012
They are nihonium (with the symbol Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og). Until now, the quartet have been referred to simply by the number of protons in each atom – 113, 115, 117 and 118, respectively. The new names and symbols have been updated in the Karlsruhe Nuclide Chart.
Excerpt from the Karlsruhe Nuclide Chart, showing the location of the recently named nuclides (Elements 113, 115, 117, and 118).
Nihonium references the Japanese name for Japan. The atom was discovered at the RIKEN Nishina Center for Accelerator Science.
Moscovium was named after the Moscow region, the location of the Joint Institute for Nuclear Research in Dubna.
Tennessine recognises the US state of Tennessee and the local contributions made to the discovery by the Oak Ridge National Laboratory and Vanderbilt University.
Oganesson honours the nuclear physicist Yuri Oganessian, who has played a leading role in the search for new elements including the one that will now bear his name.
– IUPAC Press Release
– Article in Nature
– IUPAC is Naming the four new Elements Nihonium, Moscovium, Tennessine, and Oganesson
– Discovery and Assignment of Elements with Atomic Numbers 113, 115, 117 and 118
– Karlsruhe Nuclide Chart
Nucleonica turns 5!
Dear Nucleonica Users,
5 years ago, we set out on a mission to build the most innovative technical resource for knowledge creation and competence preservation for the worldwide nuclear science community. Our vision was to not only to provide scientists, engineers and technical personnel in the field with the best software solutions available, but also to create a sustainable home for the nuclear science community on the web.
Here are some highlights from the past 5 years:
– We have established the leading nuclear science portal with thousands of users worldwide from universities, government research organizations and private companies and thereby created a truly global community.
– We developed over 40 state of the art nuclear science software solutions, which have delivered almost 4 million calculations over the past five years.
– Since we started back in 2011, all Nucleonica applications have undergone major upgrades with a view to improving user-friendliness and calculation response times.
– In 2015, we have also released the new 9th print Edition of the Karlsruhe Nuclide Chart, containing 147 new nuclides and 1497 nuclide updates compared to the 2012 edition.
Still working hard to make Nucleonica even better, in 2016 we plan to introduce new web applications. Since we are constantly looking to extend the scope of Nucleonica, new application proposals from our users are very welcome. So, if you have an idea for an innovative nuclear science software application, please do not hesitate to contact us at email@example.com.
We would also like to encourage our users who are currently not making full use of our range of applications to upgrade to Premium in order to obtain the full potential of Nucleonica.
On the following pages, this Newsletter informs you in more detail about our recent Nucleonica developments, the new 9th print Edition (2015) of the Karlsruhe Nuclide Chart, and the 2015 Nucleonica Training Courses. Hopefully you find this of interest.
Finally, thanks to all our partners and customers for their continued support and best wishes for 2016.
Many of the Nucleonica applications show a nuclide icon at the top left of the application indicating which nuclide has been selected. These nuclide icons have now been updated to be consistent with the nuclide box structure used in the Nuclide Explorer++ and the Karlsruhe Nuclide Chart. In future versions of the applications, the box structure will also depend on the database selected (i.e. currently JEFF3.1 or ENDF/B-VII.1). To date this feature has been implemented in the Gamma Library++ application.
Nuclide icon box structure in the Nuclide Explorer++ and the Karlsruhe Nuclide Chart
Through a joint collaboration between Nucleonica GmbH and the JRC, the new 9th Edition of the Karlsruhe Nuclide Chart has been published. The 9th edition contains new and updated radioactive decay data on 1644 nuclides not found in the previous 2012 edition. In total, nuclear data on 3992 experimentally observed nuclides are presented.
The accompanying booklet contains the multi-lingual “Explanation of the Chart of Nuclides” in English, German, French, Spanish, Chinese and Russian. The booklet has been substantially expanded to include the reduced nuclide decay schemes with a total of 50 examples.
New 9th Edition (2015) of the Karlsruhe Nuclide Chart
Since its first edition in 1958, the Karlsruhe Nuclide Chart has provided scientists and students with structured and accurate information on the half-lives and decay modes of radionuclides, as well as the energies of emitted radiation. Beyond the more traditional physical sciences such as health physics and radiation protection, nuclear radiochemistry and astrophysics, the chart is now in common use in life and earth sciences such as biology, medicine, agriculture and geology. An important characteristic of the chart is its great didactic value for education and training in nuclear sciences. It has been used in training programmes worldwide and is a valuable addition to many books on nuclear science including school physics books.
Nucleonica’s Universal Nuclide Chart (UNC) has been rewritten as a standard Nucleonica application to replace the Java applet version. In addition to providing a nuclide chart viewer, radioactive decay chains and neutron reaction paths can be simulated using the latest internationally evaluated nuclear data. The new application, Universal Nuclide Chart, UNC++, has the following new and updated features:
– the UNC++ application is no longer a Java applet and it is therefore not necessary to install the Java runtime environment.
– the application runs directly is most modern browsers, in particular Chrome, Firefox, Internet Explorer, Safari etc.
Universal Nuclide Chart showing a simulation of the radioactive decay of U-238.
– the nuclide box structure showing ground and metastable states is now similar to that used in the Nuclide Explorer++ and the Karlsruhe Nuclide Chart Online, KNCO++.
– nuclear data from different international datafiles can be selected. Currently JEF2.2, JEFF3.1 and ENDF/B-VII.1 are available.
– more detailed nuclear data is given for each nuclide consisting of: cross section data and branching ratios for decay, capture, and fission; most important gammas and X-rays and emission probabilities; decay modes, daughter products and branching ratios; independent, cumulative and mass chain thermal fission yields for the fission parents U235 and Pu239.
Universal Nuclide Chart, UNC++ wiki page
The main advantages of this new version are:
– The main user interface has been re-designed to provide access to a greater usable area of the nuclide chart and more intuitive use.
– It is no longer required to install the Microsoft Silverlight plugin.
– The new version of the KNCO++ has been tested on Firefox, Chrome and Internet Explorer browsers. We strongly advise using Firefox or Chrome to view this Chart.
– The new KNCO++ can also be used on mobile devices
KNCO++ wiki page
2014 in Review…
Dear Nucleonica Users,
We thank you for your support during 2014 and look forward to your continued
feedback on our updated applications. As we enter our 5th year of operations, our major applications upgrade programme continues. Almost 80% of the Nucleonica applications have already been systematically upgraded with a view to improving user-friendliness and calculation response times. In this newsletter we summarise the latest key developments and describe the new features available.
The Newsletter is divided into the following three sections:
A. What’s New in Nucleonica: In 2014, the applications Nuclide Mixtures++, Gamma Library++, Range & Stopping Power++, Nuclide Search / Radiation Search++, webGraph++, Cambio++, and WESPA++ have all undergone major revision. The use of the “++” following the application name denotes the new version. A new application for the calculation of Beta Dose Rates was launched in November 2014. See more on the following pages.
B. Karlsruhe Nuclide Chart Online (KNCO): The new Karlsruhe Nuclide Chart Online (KNCO) has now been available since January 2014. The main advantage of the new online version is that through regular (almost daily) updates the KNCO is always up to date with the latest half-lives and energies of the most important emitted radiations. For more information see pages 10-11.
C. Training Courses: We provide a short summary of the various courses held in the past year. The next Nucleonica training course will be held on 15-16 April 2015 in Karlsruhe. Early registration is encouraged. In 2015, Nucleonica again provides dedicated training courses for your organisation on request. We hope you will find this Newsletter helpful and informative.
Very best wishes for 2015