Archive for November, 2018

ENDF/B-VIII.0 (2018) decay data now available in Nucleonica

November 30th, 2018

On February 2, 2018, CSEWG released its latest revision of the ENDF/B library, ENDF/B-VIII.0.
The ENDF/B-VIII.0 (2018) decay data sublibrary is now available in Nucleonica in addition to the previously used decay data library JEFF3.1, and EBDF/B-VII.1. It is now possible to compare and contrast the main European (JEFF3.1) and American (ENDF/BVII.1, ENDF/B-VIII.0) data libraries for differences in half-lives, branching ratios, energies and emission probabilities of the emitted radiations, etc. using Nucleonica’s user friendly tools. This data comparison can be accessed through the Options tab of the Nuclide Datasheets++ application.ENDFB8

More info…
ENDF/B-VIII.0
ENDF/B-VIII.0 Evaluated Nuclear Data Library

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Use of Concise Notation for Half-life Uncertainties

November 28th, 2018

The use of the concise notation is best demonstrated with an example. Research papers often publish half-lives in so-called ‘non-concise’ form. As an example, the half-life of the alpha emitter Gd-148 has been measured to be T1/2= 70.9 ± 1.0y. When this information is published in, for example, ENSDF, NDS etc. a more concise notation is used as shown in the diagram below for Gd-148 i.e. T1/2(y) = 70.9 10 where it understood that the number in italics is the numerical value of the standard uncertainty referred to the corresponding last digits of the quoted result.
Gd148 Extract from ENSDF for nuclear data on Gd-148.

As another example, the half-life of Po-209 is given in the original scientific paper as as T1/2(y) = (125.2 ± 3.3) a. In Nucleonica’s Nuclide Datasheets, however, the half-life is given as T1/2(y) = 125.2 (33) a. Notice the notation follows that of NIST which is slightly different from the ENSDF above (NIST has the uncertainty in brackets, non-italic e.g. (33); ENSDF has the uncertainty in italic withour brackets e.g. 33). Further examples of uncertainties notations are shown below.
NDS-Uncertainties For further information see the references below.

References
Use of concise notation for data uncertainties
Standard Uncertainty and Relative Standard Uncertainty
ENSDF manuel; Note on uncertainties is on page 104
NDS Notes on page 7

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How to add Nucleonica login to your smartphone/tablet homescreen

November 23rd, 2018

Launch the mobile browser and open the website or web page you want to pin to your home screen. Use https://nucleonica.com/?login to pin the login page for fast access (If you do not see the login page, clear the cache using Ctrl+F5). Tap the menu button and tap Add to homescreen. You’ll be able to enter a name for the shortcut and then Chrome will add it to your home screen.
More information

Mobile-Nuc2On the homescreen shown above, four Nucleonica pages have been added:
1. Nucleonica Login (click on this icon to get to the login page. Click again to enter the portal, assuming username and password have been saved).
2. NucleonicaBlog (click here to go directly to the latest information on the blog)
3. Nucleonica Faqs (Click here to go directly to the Frequently Asked Questions)
4. Nucleonica Wiki (Click here to go directly to the Nucleonica wiki)

See also Nucleonica for Smartphones

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Nuclear Security training course at BfS, Berlin 2018

November 9th, 2018

Nucleonica Training on Nuclear Security, 7-8 November, BfS Berlin, 2018
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 2018. 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 WESPA++. The new eLearning centre in Nucleonica was described.BetasinTissueSimulation of the Stopping of 500 keV beta particles in 1 mm tissue using Nucleonica’s Virtual Cloud Chamber.

A major focus of the course was on nuclear security related exercies on the identification of suspected nuclear and radioactive materials using Cambio and WESPA++.
In total, 10 persons took part in the course from the various BfS locations in Germany.

More info…
Nucleonica Training Course Proceedings

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Nucleonica Training Course, CERN, 29-30 Oct. 2018

November 5th, 2018

Introduction to Nucleonica: Core Applications and Tools, 29-30 Oct. CERN, Switzerland, 2018.
This 2-day course 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 the Radiological Converter, Nuclide Mixtures, Decay Engine++, and Dosimetry and Shielding H*(10). The new e-Learning centre to support the Nucleonica applications was described.
IMG_20180416_144805 A key lecture with exercises was given by Mr. P. Bertreix (CERN) on the e-Ship++ radiological transport assistant application in Nucleonica.
A special session was devoted to gamma spectrometry tools including the Gamma Spectrum Generator, Gamma Library, Cambio and WESPA. The latter tools (Cambio and WESPA) were used for the identification nuclear and radioactive materials.
Speakers included Mr. P. Bertreix (CERN) in addition to Dr. J. Magill and Mr. R. Dreher from the Nucleonica team.

Previous Training Courses

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