Infrasound station IS25 of the International Monitoring System of the Comprehensive Test Ban Treaty : from design to certification

<p>CEA is operating the French segment of the International Monitoring System of the Comprehensive Test Ban Treaty (CTBT). Construction of IMS stations was started on the late 90’ and one last station was pending before completing commitment of France.</p><p>Taking into account experience learned over the years, design was thought to combine enhanced detection capability and robustness. It gives also the opportunity to improve out monitoring tools and technics.</p><p>Station run 9 sensors spread out on a deep forest in Guadeloupe; power is distributed with buried cable while data are received with optical fibre to a central facility from which frames are sent to the International Data Center to the CTBTO. Constructiion was carried out in 2019.</p><p>IS25 was certified by the PTS of the CTBTO in November 2020</p>

Part II Predominant Security Challenges and International Law, International Security, Ch.18 Nuclear Non-proliferation and Disarmament under International Law

This chapter traces the history of attempts and achievements in regulating the use of nuclear energy and material, focusing on nuclear non-proliferation and disarmament. Ever since its invention, the nuclear weapon has occupied a special place in the global security order, both militarily and politically, due to its extraordinary destructive power. This picture is further complicated by the fact that nuclear material has both military and civilian uses. Civilian use of nuclear material includes generating electricity through nuclear reactors. Nuclear material also has medical, agricultural, and other peaceful applications, such as its use in the treatment of cancer. The chapter assesses in detail such treaties as the Partial Test Ban Treaty, the Treaty on the Non-Proliferation of Nuclear Weapons, the Comprehensive Nuclear-Test-Ban Treaty, and the Treaty on the Prohibition of Nuclear Weapons. It also looks at the current challenges involving the Democratic People’s Republic of Korea and Iran.