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核データ研究グループから1976年より4年おきに冊子体「核図表」が発行されている。そのデータをウェブ上からも利用できるよう1999年にWWW(World Wide Web)用核図表作成プログラムの開発が行われた。しかし当時のインターネット技術に比べ現在は回線スピード、ブラウザ機能、JavaScriptライブラリなどが進歩している。2014年度版核図表の発行に伴い、より利便性を図るため、新しいインターネット技術を導入し、WWW核図表の作成方法・インターフェースの改良を行った。インターフェースにはスクロール画面を導入し、マップの画面移動が容易にすると共に、ドラッグスクロール機能も追加した。さらにスマートフォンなどモバイル端末からのアクセスも想定し、軽量版を用意して自動切り替えの処置も行った。これらの技術の導入によりアクセスタイムの軽減や、外出時での利用も可能なシステムとなった。また2014年度版の核図表にはあらたに崩壊図が追加されたため、図の作成方法を再検討した。そこで容易に図形を作成するためにSVG(Scalable Vector Graphics)を採用した。今回の改良により従来に比べてWWW核図表の利便性が大幅に増した。, The booklet "chart of the nuclides" is issued every 4 years since 1976 from Nuclear Data Center, JAEA. The chart of the nuclides for WWW (World Wide Web) was developed in 1999 in order to be available from internet browser. Internet connection speeds, browser functions and JavaScript libraries has, however, progressed at present compared with the internet technology in those days. In connection with the release of the 2014 edition of the chart of the nuclides, the interface of the WWW chart of the nuclides has been improved by introducing new internet technologies aiming at enhancing convenience on accessibilities via browsers. We introduced a scrolling screen that would make capabilities of easy screen movement on a map with the addition of the drag scrolling function. Considering smart phone access, the light-weight edition which introduced automatic switch was prepared. The new system results in reduction in access time and usefulness in mobile environment. The method of making figures of the chart was reconsidered due to addition of new decay schemes to the 2014 edition. SVG (Scalable Vector Graphics) was adopted so as to make figures easily. It is concluded that the accessibilities of WWW chart of the nuclides are substantially improved from the previous version by introducing the new technologies., 著者所属: 日本原子力研究開発機構(JAEA), JAEA-Data/Code 2015-029

JENDL Decay Data File 2015 (JENDL/DDF-2015) has been produced. The decay data of nuclides with mass numbers from 1 to 260 are included. The nuclides with unknown gamma- and/or beta-emission are also included in order to keep decay chains. The data of 1,284 fission product nuclides with mass from 66 to 172 remain unchanged from JENDL/FPD-2011 except several corrections which had been claimed by users, and those of the newly added 1,953 nuclides are taken from ENSDF. Finally, the decay data of 3,237 nuclides including 244 stable nuclides were compiled as JENDL/DDF-2015 file., JENDL Decay Data File 2015 (JENDL/DDF-2015) has been produced. The decay data of nuclides with mass numbers from 1 to 260 are included. The nuclides with unknown gamma- and/or beta-emission are also included in order to keep decay chains. The data of 1,284 fission product nuclides with mass from 66 to 172 remain unchanged from JENDL/FPD-2011 except several corrections which had been claimed by users, and those of the newly added 1,953 nuclides are taken from ENSDF. Finally, the decay data of 3,237 nuclides including 244 stable nuclides were compiled as JENDL/DDF-2015 file., 著者所属: 日本原子力研究開発機構(JAEA), JAEA-Data/Code 2015-030