Leadership and charisma: a desire that cannot speak its name?

Leadership has proved impossible to define, despite decades of research and a huge number of publications. This article explores managers’ accounts of leadership, and shows that they find it difficult to talk about the topic, offering brief definitions but very little narrative. That which was said/sayable provides insights into what was unsaid/ unsayable. Queer theory facilitates exploration of that which is difficult to talk about, and applying it to the managers’ talk allows articulation of their lay theory of leadership. This is that leaders evoke a homoerotic desire in followers such that followers are seduced into achieving organizational goals. The leader’s body, however, is absent from the scene of seduction, so organizational heteronormativity remains unchallenged. The article concludes by arguing that queer and critical leadership theorists together could turn leadership into a reverse discourse and towards a politics of pleasure at work

The ‘Colourful Tienen’: Who joins? Who learns?

Jos Motmans tells the story about a small scenario project he facilitated between October 2001 and March 2003 in Tienen a small Flemish town, dealing with prejudice and cultural diversity centred on the Roma people. The story is inspired by a mindmap he made one year after the end of the scenario project. The map represents a sunflower, (see figure 1), with a heart and seven petals. Each part stands for a theme and they are all interlinked. The heart symbolizes the project and its context. Each petal represents a role or position relevant to the project and its progress. They all have a name, the first name of the person who took this role in this scenario project. And the flower stem is the link to the fertile soil of the art of scenario thinking. As he states: ‘It is the story of synchronicity and meaning in the first scenario project I facilitated in a (living) (real) world with (living) (real) people.’Development (2004) 47, 110–114. doi:10.1057/palgrave.development.1100078

Correlation of H−^{-} beam properties to Cs-coverage

A caesiated RF driven source delivers H$^{-}$ ions that, after stripping at the end of the 160 MeV H$^{-}$ linear injector, provides protons to CERN's accelerator complex including LHC, where the protons reached a record energy of 6.8 TeV. In Caesiated RF sources, H$^{-}$ ions are produced via dissociative attachment of electrons onto roto-vibrationally excited H$_{2}$-molecules (volume) and re-emission as negative ions of protons or hydrogen atoms colliding on a low work function caesiated molybdenum plasma electrode (surface). During initial caesiation, the production mechanism evolves from the initial Cs-free volume production to a predominant surface production mode; the observed stunning reduction of co-extracted electrons is concomitant to an increase of the H$^{-}$ ion current to RF-power yield. This paper describes the evolution of the beam-profile at today's operational beam intensities of 35 mA for various ratios of volume and surface ion-origin. The presence of surface produced ions occurring on a conical plane is characterized by the electron to ion ratio and by measurement of the Cs-coverage of the molybdenum plasma electrode down to a fraction of a monolayer. Angular distributions are extracted from beam profile and Beam Emission Spectroscopy (BES) measurements. These experimental results provide an initial comparison to beam formation simulation that, at a later stage, could be coupled to beam transport software packages.The paper focuses on the caaesiation transient to present experimental evidence for 3D beam formation studies, it provides insight into the mixing of volume and surface production modes, reduction of co-extracted electrons and Cs-coverage. The paper also establishes magnetic field induced asymmetries in the beam's current density

Beam Formation Studies on the CERN IS03b H Source

An H- ion source is being operated at the new 160 MeV linear injector (Linac4) of the CERN accelerator complex. The source's plasma is of the Radio Frequency Inductively Coupled Plasma type (RF-ICP), without magnetic cusp and runs with Cs-loss compensation [1]. Vertical downward oriented filter- and electron dump-dipolar magnetic fields expand over the plasma chamber, beam-formation, beam-extraction and electron dump regions and generate horizontal asymmetry and beam angular deflection partially compensated by mechanical alignment of the front-end. The H- beam is generated via volume and caesiated plasma surface modes, the latter inducing a radial asymmetry characterized by an increased current density close to the plasma electrode surface [2]. Asymmetries affecting the meniscus shape, or its current density have to be simulated via 3D Particle In Cell Monte Carlo (PIC-MC) solvers, such as the Orsay Negative Ion eXtraction code (ONIX) [3]. Validation of these simulations require dedicated measurements. This contribution describes experimental methods newly implemented at CERN's ion source test stand and initial results for Optical and Beam Emission Spectroscopy (OES, BES), emittance and beam profile measurements. In a later stage, the gathered data sets can be compared to source plasma parameters and extracted beam parameters from PIC-MC simulations, once coupled to the Ion Beam Simulation (IBSimu) [4] beam transport code. The experimental parameter space includes RF-power, density of neutrals, position of the RF coil and extraction field. Beams of H-, D- and protons were produced; examples of measured data are presented in this contribution.peerReviewe