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2019年6月11日

Posters of “The World’s Nuclear Warheads Count” June 2019 were released. Please click on the thumbnail images below and download the pdf posters.
 

The World’s Nuclear Warheads Count

Japanese English Korean
June 2019 NuclearWH2019_JPN NuclearWH2019_ENG NuclearWH2019_KOR

>> Previous editions can be downloaded from here.
 

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2019年5月27日

Methods for Refining Estimates of Cumulative DRPK Uranium Production

David von Hippel
Nautilus Institute Senior Associate

PSNA Working Paper Series (PSNA-WP-8)

May 27, 2019

Summary

This paper summarizes the history of what is known about uranium mining in the DPRK; describes the major uncertainties regarding DPRK uranium production; notes some of the key techniques, as used in preparing estimates of nuclear sector activity in other nations, that might be available to assist in narrowing the range of estimates of DPRK uranium and processed fissile material production; summarizes estimates of enriched uranium and plutonium production prepared by other authors; describes existing estimates of the amounts of fissile materials used in nuclear weapons tests and exported; provides a demonstration of the potential impact of remote sensing methods and testing in the DPRK in reducing uncertainties in cumulative historical uranium production, and thus in fissile materials inventories; and, offers conclusions, resulting from the potential impacts of uncertainty reduction approaches, as to which verification procedures should be key targets during negotiations with the DPRK.
 

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2019年5月20日

Verification of DPRK Nuclear Disarmament: The Pros and Cons of Non-Nuclear-Weapon States (Specifically, the ROK) Participation in This Verification Program

John Carlson, A Member of Asia Pacific Leadership Network for Nuclear non-proliferation and Disarmament (APLN)

PSNA Working Paper Series (PSNA-WP-7)

May 20, 2019

Summary

In the expert and diplomatic communities, it is generally considered that disarmament verification should be undertaken as far as possible on a multilateral basis. Partly this reflects experience with the International Atomic Energy Agency’s safeguards system, and partly it reflects the view of non-nuclear-weapon states that international participation is required to ensure transparency and credibility in the disarmament process. The main argument against this is proliferation risk from the diffusion of proliferation-sensitive information. However, a number of aspects of disarmament verification will not involve sensitive information, and where sensitive information is involved there are ways of enabling effective verification while protecting such information.

As yet no specific details have been negotiated on how nuclear disarmament in the Democratic People’s Republic of Korea (DPRK) will proceed, and how this will be verified. Whatever is negotiated, the international community will certainly want assurance of the integrity of the verification process. In particular, the ROK has a very direct interest in what is happening across the DMZ and has every reason to be involved in the disarmament effort. This paper discusses how this can be possible consistent with non-proliferation principles.
 

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2019年4月10日


Reducing Nuclear Dangers on the Korean Peninsula:
Bilateral versus Multilateral Approaches

Thomas Graham, former US Ambassador,
Executive Chairman, Lightbridge Corporation

PSNA Working Paper Series (PSNA-WP-6)
April 9, 2019

Summary

This paper addresses the important issue of nuclear weapons on the Korean Peninsula. It reviews alternate solutions: an essentially bilateral solution with the United States as an associated party and a multilateral regime establishing a nuclear weapon free zone in a designated part of Northeast Asia which would include the militarily significant states in the region along with the NPT nuclear weapon states as associated parties. The effectiveness of a non-binding pledge versus a legally binding agreement and the possible availability of a nuclear assurance commitment itself a non-binding declaration or a legally binding obligation is analyzed. The verification requirements of a legally binding arrangement are outlined and associated issues such as transit through the zone established by an agreed arrangement are considered. The political salience of the two types of solutions, bilateral and multilateral is commented upon: for example what has the Democratic People’s Republic of Korea [DPRK] indicated it would accept and the likelihood that the DPRK is now prepared to be, or can be, persuaded to make the hard decision to eliminate weapons and accede to the vast verification requirements of a legally binding regime; and whether the United States would be willing to provide a negative nuclear assurance of any sort in a bilateral non-binding agreement situation as well as the level of verification it might demand in a legally binding agreement.

>> for details
 

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2019年4月1日

Prof. Fumihiko Yoshida has been appointed as the new director of RECNA. The former director, Prof. Tatsujiro Suzuki, will act as the vice director from April. We appreciate your continued support and cooperation.

New Director’s Greeting “OUR MISSION” was posted and “RECNA staff” page was renewed. Please see the following page for more information.

About RECNA
 

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