Julien de Troullioud

Assistant Professor @hkust, Nuclear Engineer PhD @Princeton, MSc @Tsinghua_Uni | Science, Technology, and Geopolitics | US-China rivalry

[Julien de Troullioud @JTroullioud]

I am glad to announce the release of ONIX, the first open-source software to estimate the production of weapon-usable materials in countries' nuclear programs. More about our new software here (https://t.co/1AX3LnAdY3) and in this thread:

[Julien de Troullioud @JTroullioud]

My view on the Ukrainian attack on Russian bombers: cheap drones not only change modern warfare, they can also upset global security https://t.co/Hq19xSX8D9

[Julien de Troullioud @JTroullioud]

@MyLordBebo FYI, the man on the video speaks mandarin Chinese, with a typical Chinese accent. The misnaming was probably a mistake from Ukrainian soldiers who were unable to distinguish North Korean from Chinese and who assumed he was Korean since many NK soldiers have joined the war

[Bulletin of the Atomic Scientists @BulletinAtomic]

"New confidence-building measures can reduce tensions around subcritical tests," by @JTroullioud and @CFichtlscherer.

Available as part of our premium magazine's March issue on nuclear testing.
https://t.co/jh4xPAC9hl

[David Fishman @pretentiouswhat]

HUGE

Xinhua is officially reporting China's First of a Kind 4th Gen nuclear reactor - the pebble-bed High Temperature Gas Reactor, (HTGR) in Shidaowan, Shandong - has finally formally entered commercial service.

It has now completed 168 hours (7 days) of continuous operation.

[Julien de Troullioud @JTroullioud]

I appreciate @LiuXininBeijing efforts to bring diverse voices on her show to discuss important hot topics like this one.

[Julien de Troullioud @JTroullioud]

My views on Fukushima water with @LiuXininBeijing @CGTNOfficial. Japan so far has shown convincing lvl of transparency via collaboration with IAEA & other countries which leads majority of the scientific community to think the water discharge plan is safe
https://t.co/5NRPZSxNJh

[Arms Control Assoc @ArmsControlNow]

"Reducing Tensions Over Nuclear Testing at Very Low Yield," in the Nov. issue of Arms Control Today, by @JTroullioud (Julien de Troullioud de Lanversin), @CFichtlscherer (Christopher Fichtlscherer), and Frank N. von Hippel. Open access at: https://t.co/w8XqYbcWc3 #CTBT

[Julien de Troullioud @JTroullioud]

Our new piece in ACT @ArmsControlNow. Amisdt growing tensions between nuclear powers, US suspicions that Russia/China violated their test moratorium is adding fuel to the fire. We need new transparency and verification measures to reduce these suspicions:
https://t.co/iQJHEPbkOJ

[Gérard Araud @GerardAraud]

Pour tous ceux qui ont perdu la mémoire, c’est Chirac et Villepin, les paladins de gaullisme, qui, en 2002, ont entamé le rapprochement de la France d’Israël. Ce sont eux qui m’y ont nommé ambassadeur avec cet objectif affirmé haut et fort dans mes instructions.

[Julien de Troullioud @JTroullioud]

@dominictsz Your tweet and image are misguiding: the US does not ban the import of Japan's seafood.

[Julien de Troullioud @JTroullioud]

@taro_taylor Fukushima nuclear disaster is of course a concern for environment and people. Japan is now showing that 1 step of its plan is safe (discharge of water). Major challenge ahead for handling cores and spent fuel but you can't blame Japan for these before they even propose a solution

[Julien de Troullioud @JTroullioud]

The Global Times is manipulating information on Fukushima water provoking unjustified fears of radioactive contamination and anti-Japanese sentiments among its readers.

[Julien de Troullioud @JTroullioud]

@taro_taylor 3. You are confusing more things. Cooling pool is for spent fuel (not core debris). Neither are accumulating by the day (water is). Once again, IAEA was solely asked to review discharge of treated water. Final handling of the spent fuel and melted cores has not yet been decided.

[Julien de Troullioud @JTroullioud]

@taro_taylor 3. You are confused. The treated water does not contain debris of the core. If it would, the radiation detectors used by TEPCO and IAEA would go off charts

4. Not sure what copyright has to do with our issue, but IAEA was not leading the International Chernobyl Project

[Julien de Troullioud @JTroullioud]

@taro_taylor 3. You are changing topic. IAEA was asked to review treated water, not the melted core. Your initial point is on the safety of the water discharged

4. This project nor the report were led neither written by the IAEA (tho its experts participated). It was just printed by the IAEA

[Julien de Troullioud @JTroullioud]

@taro_taylor I am not aware of experts questioning results of the report. There is a minority of experts questioning Japan's plan overall, and it is completely normal and a sign of a healthy community of experts.

[Julien de Troullioud @JTroullioud]

@taro_taylor The International Chernobyl Project was not an IAEA review but a project comprising various intl. orgs. (including IAEA) with a mandate to make recommendations. For Fukushima, IAEA was invited to verify safety standards as it is its role and expertise.

[Julien de Troullioud @JTroullioud]

@taro_taylor 3. There is no debris in the treated water, just trace elements of some radionuclides
4. The International Chernobyl Project was not an IAEA review but a project comprising various intl. orgs. (including IAEA) with a mandate to make recommendations. The comparison is not relevant

[Julien de Troullioud @JTroullioud]

@taro_taylor Then I would welcome said expert to further detail his concerns since it is vital to have trusted and accurate monitoring by the IAEA. I also note that he seems to be the only one to have issues with the IAEA report.

[Julien de Troullioud @JTroullioud]

@taro_taylor 3. Safety is ensured by TEPCO with continuous monitoring by NRA (Japan's nuclear regulatory agency) and IAEA. Presence of IAEA is not obligatory but was an invitation of Japan
4. I am not aware of IAEA endorsing a plan as would a national nuclear regulatory agency do