Nuclear Weapons Research Articles

Nuclear Weapons’ Illegality in International Law

Nuclear weapons are globally recognised as the most dangerous weapons in existence. Their destructive power is incalculable, not only harming the environment, but also affecting the survival and development of mankind and endangering global peace. This paper argues the illegitimacy of nuclear weapons in international law not only by talking about their adverse effects, but also by discussing their own characteristics, such as indistinguishability and overkill.

Rapacki Plan: Policy of Small States in Central and Eastern Europe in Second Half of 1950s

This article addresses the role of small states in addressing security issues in Central Europe. Through an examination of the development of the Rapacki Plan, the authors trace the distinctive features of the national interests of small states in both Western and Eastern Europe. These interests were oriented towards the advancement of European integration, the resolution of the German question, and the mitigation of political and economic dependence on the USSR. Special attention is given to the Federal Republic of Germany’s (FRG) membership in NATO and the roles played by the United States, the United Kingdom, and other alliance members in attempts to address European security issues at the level of small states. Although the Rapacki Plan was never fully realized, its objectives were partially achieved. First, the arming of the FRG with American nuclear weapons and the deployment of American intermediate-range missiles on its territory were prevented; second, economic cooperation expanded, initiating the erosion of the “Iron Curtain”; third, a “universal idea of nuclear-free zones” emerged; and fourth, concrete steps were taken to prevent nuclear war.

Impact of Partial Body Shielding from Very High Dose Rates on Untargeted Metabolomics in Biodosimetry.

A realistic exposure to ionizing radiation (IR) from an improvised nuclear device will likely include individuals who are partially shielded from the initial blast delivered at a very high dose rate (VHDR). As different tissues have varying levels of radiosensitivity, e.g., hematopoietic vs gastrointestinal tissues, the effects of shielding on radiation biomarkers need to be addressed. Here, we explore how biofluid (urine and serum) metabolite signatures from male and female C57BL/6 mice exposed to VHDR (5-10 Gy/s) total body irradiation (TBI, 0, 4, and 8 Gy) compare to individuals exposed to partial body irradiation (PBI) (lower body irradiated [LBI] or upper body irradiated [UBI] at an 8 Gy dose) using a data-independent acquisition untargeted metabolomics approach. Although sex differences were observed in the spatial groupings of urine signatures from TBI and PBI mice, a metabolite signature (N6,N6,N6-trimethyllysine, carnitine, propionylcarnitine, hexosamine-valine-isoleucine, taurine, and creatine) previously developed from variable dose rate experiments was able to identify individuals with high sensitivity and specificity, irrespective of radiation shielding. A panel of serum metabolites composed from previous untargeted studies on nonhuman primates had excellent performance for separating irradiated cohorts; however, a multiomic approach to complement the metabolome could increase dose estimation confidence intervals. Overall, these results support the inclusion of small-molecule markers in biodosimetry assays without substantial interference from the upper or lower body shielding.

Military Threats, International Pressure, and Public Opinion on the Nuclear Ban Treaty in Japan

ABSTRACT This study examines the effect of perceived military threat on Japanese people’s opinion about Japan’s accession to the Treaty on the Prohibition of Nuclear Weapons. While nuclear aversion has been historically strong and deep-rooted in Japan, we expected that people would hesitate to support the treaty when reminded of the deteriorating security environment, considering recent experimental evidence suggesting that nuclear aversion is conditional and tends to fluctuate often and that Japanese citizens tend to be apathetic towards international laws. Moreover, we examine the possibility that pressure from foreign countries and international organizations reinforces people’s support for the treaty. Our survey experiment reveals that Japanese people are less likely to support Japan’s accedence to the treaty when they are primed with security threats, although the difference is small, and that this negative effect is limited to centrist and conservative citizens. However, we find no evidence that international pressure has the power to promote people’s support for the treaty.

The Iranian-Israeli conflict is one of the main threats to international security

The article analyzes a brief history of the relationship between two regional powers — Iran and Israel, the roots and causes of their confrontation, and the features of waging the so-called “hybrid war” between them at the present stage. The author pays attention to describing the situation of the relatively small Jewish community of Iran, the activation of all Tehran's proxy forces in the Middle East (Palestinian Hamas, Yemen's Ansar Allah, Lebanese Hezbollah, etc. anti-Israel groups in the region). Particular attention is paid to the fi rst ever direct military confrontation between Iran and Israel, which resulted in an exchange of missile and drone attacks in April 2024. Restraint in the actions of Israel's allies represented by Washington and other Western countries during the Iran-Israeli confl ict and the mutual disinterest of Tehran and Tel Aviv in inciting large-scale hostilities are noted. The author believes that the level of confrontation between Iran and Israel could be signifi cantly reduced if the IDF military operation in the Gaza Strip were stopped and peace negotiations on a Middle East settlement were resumed. The article provides a comparative analysis of the military potentials of Iran and Israel and examines possible scenarios for further developments in the region. The author believes that Tehran has become the greatest beneficiary of the latest aggravation of the situation in the Middle East. The process of recognition of the State of Israel, which had been outlined in previous years, was practically thwarted; Iran strengthened its authority as a fi ghter for a just solution to the Palestinian problem in the Arab and Muslim world, and noticeably weakened Israel’s position in the region and in the international arena. In conclusion, the author concludes that the Iran-Israeli confl ict represents one of the main threats to regional and international security. This is explained by a number of factors, the most important of which is the presence of nuclear missile weapons in Israel and a triad of means of delivering them to targets, as well as the fact that Iran is armed with ballistic and cruise missiles, long-range drones and can also create nuclear weapon. The Iran-Israeli confl ict presents an equation with many unknowns. The threshold of tension between these countries could be reduced by the cessation of Israel's military operation in the Gaza Strip, the resumption of peace negotiations on resolving the Palestinian problem in various formats, and a return to the nuclear deal with Iran (JCPOA) by Washington.

Militarization of containment policy

The author makes an attempt to explore the interdependence between military and nonforce forms and methods of imposing one’s will on the enemy in the process of escalating military conflicts of our time. Important attention is paid to comparing the likely results of the use of tactical nuclear weapons as a tool of deterrence and hybrid warfare technologies as a new type of interstate confrontation. It is shown that hybrid warfare is a powerful means of infl uencing the enemy when solving complex problems of ensuring national security and turns into the most important factor in political and diplomatic influence and achieving national goals, without resorting to destructive nuclear influences. In the context of the transformation of the world order, new acute challenges and threats are emerging today, the response to which leads to powerful geopolitical shifts on all continents. In these conditions, the complexity of strategic forecasting and planning the actions of individual states and their coalitions requires serious collective eff orts to maintain stability and ensure sustainable development of the world, and the use of a full range of political, diplomatic, economic and information tools to influence the situation. An important condition for the successful solution of such a task is the coordination of national approaches to the development of philosophy and technologies for resolving modern military conflicts,the use for these purposes of the potential of international security organizations, the transformation of educational programs and the direction of scientific research. The primary tasks are to bring them into line with the realities of our time and improve the quality of Russia’s strategic planning documents, taking into account the experience of the Northern Military District.

DNA Damage and Repair in PBMCs after Internal Ex Vivo Irradiation with [223Ra]RaCl2 and [177Lu]LuCl3 Mixtures.

The combination of high and low LET radionuclides has been tested in several patient studies to improve treatment response. Radionuclide mixtures can also be released in nuclear power plant accidents or nuclear bomb deployment. This study investigated the DNA damage response and DNA double-strand break (DSB) repair in peripheral blood mononuclear cells (PBMCs) after internal exposure of blood samples of 10 healthy volunteers to either no radiation (baseline) or different radionuclide mixtures of the α- and β-emitters [223Ra]RaCl2 and [177Lu]LuCl3, i.e., 25 mGy/75 mGy, 50 mGy/50 mGy and 75 mGy/25 mGy, respectively. DSB foci and γ-H2AX α-track enumeration directly after 1 h of exposure or after 4 h or 24 h of repair revealed that radiation-induced foci (RIF) and α-track induction in 100 cells was similar for mixed α/β and pure internal α- or β-irradiation, as were the repair rates for all radiation qualities. In contrast, the fraction of unrepaired RIF (Qβ) in PBMCs after mixed α/β-irradiation (50% 223Ra & 50% 177Lu: Qβ = 0.23 ± 0.10) was significantly elevated relative to pure β-irradiation (50 mGy: Qβ, pure = 0.06 ± 0.02), with a similar trend being noted for all mixtures. This α-dose-dependent increase in persistent foci likely relates to the formation of complex DNA damage that remains difficult to repair.

A ‘Nuclear Bomb’ or Just ‘a Joke’? Groundwater Models May Help Communicate Nuanced Risks to the Great Salt Lake

The Great Salt Lake entered the zeitgeist of environmental concern in 2022 when a coalition of scientists and activists warned in a highly publicized report that the lake might be just five years away from complete desiccation, a possibility one state official warned was tantamount to an “environmental nuclear bomb”. Shortly thereafter, an unpredicted and unprecedented pluvial winter resulted in an increase in inflow, temporarily halting the lake’s decline and prompting Utah’s governor to mock the dire prediction as “a joke”, an outcome that speaks to the tension between agenda-setting and trust-building that researchers face when sharing worst-case warnings, particularly those based on short-term variability. Here, we describe a robust relationship between the lake and groundwater in the surrounding region and demonstrate how coupled models can thus be used to improve lake elevation predictions, suggesting that while the situation may not be as dire as some have warned, the lake remains at long-term risk as a result of climate warming. We further suggest that efforts to communicate the risk of future desiccation should be informed by stochastic variability and guided by long-term fluctuations in the total water storage of the endorheic lake’s watershed.

Beyond Orientalism: The Islamic Republic of Iran’s Strategic Preferences Regarding Nuclear Weapons

When studying the issue of nuclear weapons proliferation, Iran is often presented as a rogue state driven by a volatile Islamic belief system. Such accounts present Iran as perpetually seeking nuclear weapons due to its foreign and defense policy, which is conceived by irrational Muslim clerics. This article deconstructs such consistent Orientalist discourses across Western academia, think-tanks, lobbying, and governments concerning the rogue and irrational pursuit of nuclear weapons by the Islamic Republic of Iran. Departing from them, the article moves to peruse a range of views held by some prominent Iranian clerics about nuclear weapons and demonstrates the rationales that bring Iran’s clerics to socially construct external threats, dangers, and other strategic concerns from within the Islamic Republic. In doing so, a new framework for understanding Iran’s strategic preferences—unbridled by the limitations of Orientalist discourse, as well as the biases of secular and state-based realist thinking—is offered.

Contested Nuclear Sharing in Belgium: Domestic Political Dynamic for the Nuclear Weapons Ban

ABSTRACT The successful conclusion of the Treaty on the Prohibition of Nuclear Weapons (TPNW) has challenged the global nuclear order, but was dependent on bypassing the nuclear weapon states (NWS) and their allies. This has led critics to dismiss its practical value for nuclear disarmament. Proponents of the ban treaty, however, hope for a “transformative political dynamic” that delegitimizes nuclear weapons and leads to NWS and their allies joining the TPNW. This article contributes both conceptually and empirically to the discussion of this “transformative political dynamic”. It deals with the role of nuclear weapons for NATO membership and the strategies for legitimizing and delegitimizing nuclear weapons. The case study on Belgium analyzes the processes of coalition building and the discursive strategies related to Belgium’s nuclear role in NATO. The study shows that the exchange of symbolic arms control and disarmament initiatives for the approval of military budgets and the acquiescence to the claimed nuclear obligations of NATO membership stands on shaky ground.

Logic (or Illogic?) of Japan’s Aversion to TPNW and Charting a Path Forward

ABSTRACT Japan, the only country to have experienced atomic bombs during wartime, is the only one among the US allies to have positively evaluated the Treaty on the Prohibition of Nuclear Weapons (TPNW) at the highest political level, with Prime Minister Kishida saying that as “a very important treaty that can serve an exit as we seek to realize a world without nuclear weapons”. Yet Japan has distanced itself from the TPNW, not participating even as an observer in the TPNW’s Meeting of States Parties. This paper attempts to explain Japan’s stance toward the TPNW process, before and after the formation of the treaty, based on a hypothesis that Japan’s nuclear policy is formed by a balancing act between two factors: humanitarian and security concerns. It then attempts to chart a path forward for any possible engagement between Japan and the TPNW. It argues that a substance-over-formality approach, not sticking to the TPNW formalities but in a framework separate from the TPNW, may open a window of opportunity for cooperation. Japan can also flexibly consider security benefits in engaging with the TPNW and comprehensively calculate possible security benefits and drawbacks without a predetermined conclusion. Since the NPT may not be sustainable unless there is a significant progress in nuclear disarmament, which itself is unlikely, like it or not, the TPNW cannot be ignored indefinitely and the time may come in the not-too-distant future when Japan will eventually have to consider engagement with the TPNW.

Depth-resolved deuterium retention analysis in displacement-damaged tungsten using laser-induced breakdown spectroscopy

Fuel retention in plasma-facing components (PFCs) is a critical issue in future nuclear fusion reactors operating with Deuterium-Tritium (DT) regarding nuclear safety and fulfillment of the T cycle. However, during DT plasma operation, highly energetic neutrons will induce damage in the lattice of W PFCs causing enhanced fuel retention in defects or traps. Laser-Induced Breakdown Spectroscopy (LIBS) is a potential tool to monitor the T-content in situ in PFCs of future nuclear fusion devices. This article presents an ex situ study on pre-damaged W material after D plasma exposure to qualify the method and mimic conditions expected in a reactor. ITER grade W samples were displacement-damaged by 10.8 MeV W ions to a damage dose of 0.23 dpa and exposed to low temperature deuterium plasma at low energy in PlaQ. The resulting deuterium concentration was analyzed by using 3He Nuclear Reaction Analysis (depth resolution of ≈150 nm) as a well-established method, and LIBS (picosecond laser pulses, depth resolution of 15 nm). The sample with the highest deuterium concentration showed a deuterium-rich zone up to a depth of 1.13 μm using both techniques. This is close to the expected W ion-induced damage depth of ≈1 μm. The results imply that LIBS as an in situ technique for tritium monitoring could be a viable option for a reactor.

Role of radiation re-absorption in the thermal helium beam diagnostic.

The Thermal Helium Beam (THB) is a diagnostic for simultaneously measuring the electron temperature and density profiles of the plasma edge and scrape off layer (SOL). It exploits the line ratio technique of selected He line intensities, emitted by He gas puffed inside the plasma, to locally estimate the plasma properties through a dedicated collisional radiative model (CRM). Standard THB diagnostics used in nuclear fusion devices measure three HeI emission lines: 667.8, 706.5, and 728.1nm. For the RFP experiment RFX-mod2, a new THB is designed and tested for the first time at the TCV tokamak. It acquires an additional emission line at 501.6nm, which is exploited to estimate the radiation re-absorption, which is not negligible in regions of large neutral He densities (leading to high re-absorption) and simultaneously low electron density and temperature (lack of other excitation channels). It affects the measurements most strongly at the far SOL, while the significance of re-absorption decreases as it approaches the separatrix. In this paper, plasma density and temperature profiles of the plasma edge at the outboard midplane of TCV, measured with this newly designed THB, are presented. For the first time, the effect of radiation re-absorption on the estimation of electron temperature and density profiles is experimentally measured in a tokamak using the 501nm line emission intensity. Different CRMs are compared with and without radiation re-absorption, showing good agreement when re-absorption is included and demonstrating how it plays an important role in the far SOL, as expected.

Making Sense of European Disunity on Nuclear Weapon Questions

Making Sense of European Disunity on Nuclear Weapon Questions

Strengthening Global Security: Critique on the NPT and NSG Mechanisms of Nuclear Export Control Regime

An export control regime plays a vital tool in the effort to counter the proliferation of traditional weapons and weapons of mass destruction. However, there are new and fundamental challenges with this system. The article emphasizes the importance of understanding and implementing nuclear export control mechanisms to advance international security and prevent the spread of nuclear weapons. The research will apply descriptive analysis of the mechanisms of nuclear export controls. Critical analysis of the nuclear export control apparatuses will be applied as a technique to review the loopholes in the enforcement mechanisms of these initiatives. The debate covers key aspects of nuclear export control, including legislative frameworks, industry compliance, licensing and authorization procedures, verification and monitoring systems and control scope. Understanding these elements will enable stakeholders to support responsible and peaceful transfers of nuclear technology while ensuring compliance with international commitments and nonproliferation standards. The paper further delves into the context of these regimes, which are constructed in a way that provides cushion to the international community led by the Western states. The article emphasizes the critical role of the mechanisms of nuclear export control in preserving international security by preventing the unauthorized transfer of sensitive nuclear materials and technology. It also emphasizes the need for industry and national collaboration in this regard.

Girlhood in <em>What Use Are Flowers?</em>: Lorraine Hansberry, the Postapocalyptic Earth, Nurturing

The earliest date ascribed to the manuscript of Lorraine Hansberry’s posthumously published play What Use Are Flowers? is December 19, 1961. However, there is no conclusive evidence showing when Hansberry first conceived the idea of what became Flowers, a play about child survivors of an unnamed (but obviously) nuclear holocaust. Yet, given the context of President John F. Kennedy’s speech during the Berlin Crisis, which became a flashpoint for the national debate on nuclear war, shelters, and the survivability of the ideas of home and family, attributing it to 1961 would be unsurprising. In Flowers, an aging hermit, the only remaining adult survivor, plays the role of father and teacher, creating the simulacrum of a patriarchal family without a woman (mother) to care for the children of postapocalyptic Earth. Through readings of Flowers and its precursor text “Gedachtnis,” both of which feature the female child survivor named after a wild plant that is neither edible nor useful to human survival, I examine the question of girlhood and its human–plant conditions as a contested terrain through which patriarchy is both nurtured and challenged. What ultimately explodes in Flowers may not be a technological atomic bomb, but rather a nuclear device in human history, which has been fueling sustainable, renewable energy in a male-dominated world, namely, girls’ use by, and value to, men.

Neutron spectroscopy of plutonium using a handheld detection system

The ability to distinguish multiple forms of plutonium from one another, such as oxide and metal, is paramount in areas of nuclear nonproliferation and international safeguards. In its metal form, plutonium can be readily used in a nuclear weapon, while oxide forms are associated with nuclear reactor fuel. Oxide-based plutonium forms emit neutrons with an energy spectrum that is significantly different from the fission neutrons that are emitted from plutonium metal. Organic scintillation detectors output pulses that are proportional to the neutron energy deposited, and therefore present a means of distinguishing these plutonium forms based on their energy spectra. In this work, metal and oxide forms of plutonium were measured using a handheld detection system based on an organic glass scintillator. Monte Carlo modeling of these experiments was performed to provide insight into the origin of the features in the observed light output spectra. Through analysis of multiple regions of these spectra, in a matter of minutes we were able to unambiguously discriminate oxide and metal plutonium forms from one another and from a plutonium-beryllium neutron source, which was considered for comparison because these sources are commonly used in industrial applications. The ability to discriminate weapons-usable material from nuclear reactor fuel has applications in nuclear treaty verification and safeguards.

Investigation of the distribution of transuranic radionuclides in marine sediment at the Montebello Islands, Western Australia

Three nuclear weapons tests were conducted in the 1950s at the Montebello Islands, Western Australia. The detonations were of different yields and configurations (two tower tests, one ship test), and led to substantial radionuclide contamination within the surrounding terrestrial and marine ecosystems. The region possesses great ecological and recreational significance, particularly within the marine environment. However, studies conducted so far have largely neglected the marine ecosystem which makes up the majority of the Montebello Island Marine Park and in which most test fallout would have deposited. Here we investigated the distribution of the transuranic radionuclides 238Pu, 239,240Pu and 241Am in marine sediment from the Montebello Islands. Marine sediment samples near Operation Mosaic G2 and Operation Hurricane were collected and analysed by gamma and alpha spectrometry. Activity concentrations of 239,240Pu across both series ranged from 45 to 2900 Bq kg−1, while 241Am levels ranged from 2.8 to 70 Bq kg−1. Higher activity concentrations were observed in sediment near the land-based, higher yield Mosaic G2 test, compared with the ship-based, lower yield Hurricane test. Sediment samples located closer to the detonation site were also observed to have higher activity concentrations. Radioactive particles of 0.94 mm and 1.5 mm in diameter were identified by analysis of size-fractioned sediment via investigation of 152Eu levels, photostimulated autoradiography and point gamma spectroscopy. Particles were confirmed to have transuranic radionuclide interiors, with surface coatings which were dominated by vitrified CaCO3. Their long-term resistance to weathering and subsequent persistence in the marine environment can therefore be attributed to their coated structural form. Our study confirms the persistence of transuranic radionuclides in Montebello Island marine sediment and highlights the need for additional studies to improve our understanding of the nuclear legacy in this region.

Carbon Cycles Through Plants More Quickly Than Expected

A radioactive isotope produced by nuclear weapons reveals that plants take up more carbon—but hold on to it for less time—than current climate models suggest.

Modeling Plutonium Decorporation in a Female Nuclear Worker Treated with Ca-DTPA after Inhalation Intake.

The present work models plutonium (Pu) biokinetics in a female former nuclear worker. Her bioassay measurements are available at the US Transuranium and Uranium Registries. The worker was internally exposed to a plutonium-americium mixture via acute inhalation at a nuclear weapons facility. She was medically treated with injections of 1 g Ca-DTPA on days 0, 5, and 14 after the intake. Between days 0 and 20, fecal and urine samples were collected and analyzed for 239Pu and 241Am. Subsequently, she was followed up for bioassay monitoring over 14 y, with additional post-treatment urine samples collected and analyzed for 239Pu. The uniqueness of this dataset is due to the availability of: (1) both early and long-term bioassay data from a female with plutonium intake; (2) data on chelation therapy for a female; and (3) fecal measurement results. Chelation therapy with Ca- and/or Zn-salts of DTPA is known to aid in reducing the internal radiation dose by enhancing the excretion of plutonium and americium from the body. Such enhancement affects plutonium biokinetics in the human body, posing a challenge to the internal dose assessment. The current radiation dose assessment practice is to exclude the data affected by Ca-DTPA from the analysis. The present analysis is the first to explicitly model the chelation-affected bioassay data in a female by using a newly developed chelation model. Thus, the bioassay data collected during and after the Ca-DTPA administrations were used for biokinetic modeling and dose assessment. The Markov Chain Monte Carlo method was used to investigate model parameter uncertainty, based on the bioassay data and assumed prior probability distributions. A χ2/nData (number of data points) ≈ 1 was observed in this study, which indicates self-consistency of the data with the model. Results of this study show that the worker's 239Pu intake was 12 Bq, with a committed effective dose to the whole-body of 1.2 mSv and a committed equivalent dose to the bone surfaces, liver, and lungs of 37.8, 9.1, and 0.8 mSv, respectively. This study also discusses the worker's dose reduction due to chelation treatment.