Simulation of the secondary electrons energy deposition produced by proton beams in PMMA: influence of the target electronic excitation description

We have studied the radial dependence of the energy deposition of the secondary electron generated by swift proton beams incident with energies T = 50 keV–5 MeV on poly(methylmethacrylate) (PMMA). Two different approaches have been used to model the electronic excitation spectrum of PMMA through its energy loss function (ELF), namely the extended-Drude ELF and the Mermin ELF. The singly differential cross section and the total cross section for ionization, as well as the average energy of the generated secondary electrons, show sizeable differences at T ⩽ 0.1 MeV when evaluated with these two ELF models. In order to know the radial distribution around the proton track of the energy deposited by the cascade of secondary electrons, a simulation has been performed that follows the motion of the electrons through the target taking into account both the inelastic interactions (via electronic ionizations and excitations as well as electron-phonon and electron trapping by polaron creation) and the elastic interactions. The radial distribution of the energy deposited by the secondary electrons around the proton track shows notable differences between the simulations performed with the extended-Drude ELF or the Mermin ELF, being the former more spread out (and, therefore, less peaked) than the latter. The highest intensity and sharpness of the deposited energy distributions takes place for proton beams incident with T ~ 0.1–1 MeV. We have also studied the influence in the radial distribution of deposited energy of using a full energy distribution of secondary electrons generated by proton impact or using a single value (namely, the average value of the distribution); our results show that differences between both simulations become important for proton energies larger than ~0.1 MeV. The results presented in this work have potential applications in materials science, as well as hadron therapy (due to the use of PMMA as a tissue phantom) in order to properly consider the generation of electrons by proton beams and their subsequent transport and energy deposition through the target in nanometric scales.

Impact of the Decarbonisation of the Energy System on Employment in Europe. CEPS Special Report No. 82, February 2014

This paper presents a methodology for calculating the potential impact of the new socio-ecological transition away from fossil fuels on employment in EU energy supply. The methodology is based on “employment factors” (i.e. labour intensities) of different energy technologies. These employment factors are applied to changing energy mixes as projected by the decarbonisation scenarios of the European Commission’s Energy Roadmap 2050. In particular, we analyse quantitative (number of jobs) and qualitative (qualification levels) impacts on employment in extraction and processing of primary (fossil) fuels and in the power sector for the years 2020, 2030 and 2050. The results show that the energy sector will provide not only more jobs as the new socio-ecological transition unfolds, but also jobs requiring higher-level qualifications when compared with the current energy sector.

Exploring a Regional Approach to EU Energy Policies. CEPS Special Report No. 84, 15 April 2014

Regional approaches to EU energy policies have been termed the ‘Schengenisation’ of energy, making reference to the Schengen Convention eliminating intra-European border controls. They aim to hone the effectiveness of EU energy policy objectives through enhanced policy coordination at the regional scale. Typically, this includes energy market integration while accounting for member states’ continued deployment of national-level policy instruments regarding the appropriate energy mix and the security of energy supply, which is foreseen in the EU Treaty. This report explores the potential for such regional approaches. It assesses lessons from existing initiatives, regional energy arrangements such as the Danube Energy Forum, the Mediterranean Energy Forum, the Pentalateral Energy Forum, the North Seas Countries’ Offshore Grid Initiative and the Nordic Co-operation partnership, to determine whether regional energy initiatives are an efficient, effective and politically acceptable approach toward reaching three EU energy policy objectives: competitiveness, supply security and sustainability. Regional approaches could possibly play an important role for governing EU renewables policy, which the European Commission has identified in the 2030 climate and energy framework as an important element for governance.

Exploring a Regional Approach to EU Energy Policies. CEPS Special Report No. 84, April 2014

Regional approaches to EU energy policies have been termed the ‘Schengenisation’ of energy, making reference to the Schengen Convention eliminating intra-European border controls. They aim to hone the effectiveness of EU energy policy objectives through enhanced policy coordination at the regional scale. Typically, this includes energy market integration while accounting for member states’ continuing deployment of national-level policy instruments regarding the appropriate energy mix and the security of energy supply, which is foreseen in the EU Treaty. This report explores the potential for such regional approaches. It assesses lessons from existing initiatives, regional energy arrangements such as the Danube Energy Forum, the Mediterranean Energy Forum, the Pentalateral Energy Forum, the North Seas Countries’ Offshore Grid Initiative and the Nordic Co-operation partnership, to determine whether regional energy initiatives are an efficient, effective and politically acceptable approach toward reaching three EU energy policy objectives: competitiveness, supply security and sustainability. Regional approaches could possibly play an important role for governing EU renewables policy, which the European Commission has identified in the 2030 climate and energy framework as an important element for governance.

Russian belligerence and Europe's energy security. EPC Commentary, 19 March 2014

Recent Russian actions have unequivocally underlined that it does not play by the rules. This provides a wake-up call and should alert not only the countries of the former Soviet Union, but the EU as a whole. For the EU, this has one clear implication: it cannot continue to depend on an unreliable energy supplier, which is prone to use energy as a political tool. Luckily for the EU, summer is approaching and Europeans will need less Russian gas for heating. However, potential gas supply disruptions remind Europe of its energy vulnerabilities, and of the 2006 and 2009 winters, when Russia’s decision to stop the flow of gas to Ukraine led to supply crises in a number of EU Member States. As the EU’s heads of states and governments gather in the European Council on 20 and 21 March, the developments in Ukraine and the possible Russian illegal annexation of Crimea will undoubtedly dominate the discussions. Securing energy supply will figure on the agenda, but energy should also be seen as a means to pressure Russia. It is important that the Member States use the occasion to commit to working together on energy security. If this is addressed in a holistic way, it can also support European industry and climate policy – the other issues on the Council agenda that run the risk of being forgotten.

Russian sanctions against Moldova. Minor effects, major potential. OSW COMMENTARY No. 152, 2014-11-06

Russia has been Moldova’s main trade partner and Russian capital has accounted for a large part of its foreign investments, dominating in the energy and the banking sectors. Moreover, Russia has been a key job market for Moldovan expatriate workers. In the economic sphere, this is making Moldova unilaterally dependent on Russia. Moscow has been attempting to exploit this situation to put pressure on the authorities in Chișinău for quite some time. In recent months Russia has increasingly used instruments for exerting economic pressure on Moldova, as a means of responding to the current authorities’ pro-Western policy. A key element of this policy was Moldova’s signing on 27 June 2014 of the Association Agreement with the EU (which came into force on 1 September 2014). Over the last year, Russia has implemented a number of import restrictions on Moldovan goods. The aim of the Russian actions is to fuel social disappointment, and ultimately – to prevent the pro-European coalition currently in power from winning the parliamentary elections scheduled for 30 November 2014. Another aim might be to convince the Moldovan authorities to suspend the implementation of the Association Agreement – a plan openly put forward by Vladimir Putin during the CIS summit in Minsk on 10 October 2014. So far, however, the Russian economic sanctions have failed to produce the expected results. Support for the pro-European parties has been high, and there is little chance that the pro-Russian groups might achieve a parliamentary majority. It is not inconceivable, then, that in the upcoming months Moscow might decide to resort to other, more potent instruments of economic pressure such as speculation on the financial market, carried out as part of its de facto control over the banking sector. Another possibility is further tightening of trade restrictions, issuing expatriate workers from Russia or using Moldova’s dependence on Russian energy.

A New Euro-Mediterranean Energy Roadmap for a Sustainable Energy Transition in the Region. MEDPRO Policy Paper No. 3, February 2013

This paper addresses the urgent need for a sustainable energy transition in the southern and eastern Mediterranean region. It analyses the unsustainable burden of universal energy subsidies and calls for new development paths unlocking the huge potential for low-cost energy efficiency and demand-side management as well as for renewable energy. It argues that a new structure of regional and interconnected energy markets is needed. It then proposes some original approaches regarding the financing of this sustainable energy transition and finally calls for an ambitious, Euro-Mediterranean Energy Roadmap, which should contribute not only to the economic and environmental development of the region, but also to its social and political stability.

The Relationship between Energy and Socio-Economic Development in the Southern and Eastern Mediterranean. MEDPRO Technical Report No. 27/February 2013

This report aims to identify, explain and detail the links and interactions in southern and eastern Mediterranean countries (SEMCs) between energy supply and demand and socio-economic development, as well as the potential role of energy supply and demand policies on both. Another related aim is to identify and analyse, in a quantitative and qualitative way, the changing role of energy (both demand and supply) in southern Mediterranean economies, focusing on its positive and negative impact on socio-economic development. This report investigates in particular: o The most important channels through which resource wealth can contribute to or hamper economic and social development in the analysed region; o Mechanisms and channels of relations between energy supply and demand policies and economic and social development. The burdens of energy subsidies and ‘oil syndrome’ are of particular relevance for the region. An integrated socio-economic development and energy policy scenario approach showing the potential benefits and synergies within countries and the region is developed in the final part of the report.

Energy Efficiency: Trends and Perspectives in the Southern Mediterranean. MEDPRO Technical Report No. 21/December 2012

This paper has two objectives. First, it attempts to establish the potential of policies on energy efficiency and energy demand-side management in the southern Mediterranean region. Second, by examining past trends in energy intensity and trends up to 2030, it analyses the prospects and costs of such policies, compared with expected developments in the price of energy resources. Based on both analyses (MEDPRO WP4) and on prospects for growth (MEDPRO WP8), it seems that energy intensity in the Mediterranean should fall perceptibly by approximately 13% in the next 20 years. But given the programmed energy mix, this will not limit emissions of CO2, which are likely to increase by more than 90%. The paper first presents the rationale for demand-side management (DSM) policies. After a general discussion of concepts, it tackles the question of instruments and measures for implementing such policies, before posing the question of the cost-efficiency approach for monitoring the measures the authorities introduce. Secondly, the paper assesses energy consumption and energy efficiency in the countries of the southern Mediterranean and the ways in which their main economic sectors have changed in recent decades. The third section outlines the demand management measures introduced and, taking Tunisia and Egypt as examples, estimates the cost of such policies. The fourth and last section offers a forecast analysis of energy consumption in the Mediterranean up to 2030, highlighting probable trends in terms of final consumption, energy intensity, energy mix and emissions of CO2. The section concludes with estimates in terms of cost, comparing objectives for lower intensity, results in terms of resource savings and the types of costs this approach represents.

EU 2020 Renewable Energy Goals Insufficient. IES Policy Brief Issue 2012/01/January 2012

Summary. It is clear that any action to combat climate change must involve extensive efforts in reducing the greenhouse gas (GHG) emissions from the energy sector. In the EU, nearly 80% of total GHG emissions come from the energy sector (European Commission, 2011, p. 21). Any credible action within the EU on combating climate change therefore requires deep shifts in the way we produce and use our energy. This paper highlights that renewable energy policies to 2020 are insufficient to meet the EU’s long-term climate policy objectives of reducing GHG emissions by between 80 and 95% by 2050, and thereby aiming to avoid an increase in global temperatures of more than 2°C. Such an ambition would likely require a very high share of renewable energy (in the range of 80 to 100%) in the overall energy mix of the EU, given current uncertainties about the feasibility of potential technological developments (e.g. carbon capture and storage technology).

The Role of Civil Society Dialogue in the EU-China Cooperation on Renewable Energy. IES Policy Brief Issue 2012/05/December 2012

Summary. Expanding EU-China institutional cooperation in the energy sector has been matched by a parallel process of stronger economic ties between European and Chinese companies in the renewable energy (RE) sector (particularly wind and photovoltaics). While the foundation of early EU-China institutional relations was based primarily on trade cooperation, international efforts to mitigate climate change and the common challenge of decreasing energy dependence in a sustainable manner brought a new dimension to their partnership in the energy sector in the mid 90s. Although the role of EU-China energy cooperation has grown tremendously in the context of EU external trade policy and EU strategy to boost its energy independence and international climate policy, the potential of civil society collaboration in this partnership has remained rather unexploited. Based on major civil society initiatives in the RE field that have been developed in recent years, this policy brief argues that civil society dialogue between China and EU could be an important driving force in deepening EU-China cooperation on RE and a bridge towards a more sustainable future.

Effective Regional Energy Policy Cooperation in South East Europe: A Proposal. CEPS Background Briefing Paper, 2 July 2015

Key Points. The implementation of regional energy policy cooperation initiatives is a priority of both the Energy Union and the so-called 2030 Energy and Climate Framework. The Energy Union proposal has singled out south east Europe as one area in which to act. This report identifies the seven key elements that need to be addressed to bring existing and planned regional energy policy cooperation initiatives in south east Europe to life: i) a sound geographical definition, ii) a governance structure, iii) voluntary participation, iv) exchange of information and best practice, v) the development of an external dimension, vi) regional infrastructure planning and development and vii) streamlining the financing instruments across the region. The study finds that significant progress has been made in many areas, and makes concrete proposals to unlock the full potential of coordination in those areas where there is limited progress. These proposals have been tested in discussions in the region.

Workshop on unregulated diesel emissions and their potential health effects - edited transcript of proceedings.

National Highway Traffic Safety Administration, Technology Assessment Division, Washington, D.C.

Small car driver inflatable restraint system evaluation. Volume III: investigation of potential crash survivability of a current production subcompact vehicle equipped with an advanced driver restraint system. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

MIS silicon solar cells : potential advantages /

"Work Performed Under Contract No. EG-77-C-01-4042."