First lasing with FELIX

Amersfoort, P.W. van; Bakker, R.J.; Bekkers, J.B.; Best, R.W.B.; Buuren, R. van; Delmee, P.F.M.; Faatz, B.; Geer, C.A.J. van der; Jaroszynski, D. A.; Manintveld, P.; Mastop, W.J.; Meddens, B.J.H.; Meer, A. F. G. van der; Nijman, Jint; Oepts, D.; Pluygers, J.; Wiel, M.J. van der; Gillespie, W. A.; Martín, Paula; Kimmitt, M.F.; Pidgeon, C. R.; Poole, M.W.; Saxon, G.

doi:10.1016/0168-9002(92)91021-z

Cited by 48 publications

(10 citation statements)

References 6 publications

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“…By 19 August 1991 first lasing was achieved on what was to become the first operational FEL user facility in Europe, called FELIX, and housed at the FOM Institute for Plasma Physics Rijnhuizen (near Utrecht) in The Netherlands. 20 The following spring, the FEL at the UVSOR storage ring Okazaki, in Japan, lased, further illustrating the hard-won global progress following the first FEL demonstration at Stanford in 1976. 21 Oxford FEL: OBELIX After funding for the UK FEL project had ceased, an application, headed by John Mulvey of the University of Oxford, for another FEL facility-the Oxford FEL OBELIX-based on the Oxford 10 MV Van de Graaff accelerator (see figure 11) was made in late 1989/1990.…”

Section: Global Context Of Early Uk Developmentsmentioning

confidence: 99%

The origins and development of free-electron lasers in the UK

Seddon

Poole

2023

Notes Rec.

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This review article covers close to 45 years of free-electron laser (FEL) activity in the UK from the mid 1970s until 2022. Technical details of the projects are given together with personal insights provided by those who worked on specific projects. Both funded and unfunded projects are included to highlight the breadth of ideas generated over the years; this approach also clearly reveals the evolution in FEL activities from the early imperative to reproduce and understand first results at long wavelength towards the development of ever-higher-quality FEL output at very short wavelengths. Also included are the longer-term and broader benefits of the early projects. One aspect of this is the many years of UK experience in the design, operation and use of FEL facilities (in the UK and abroad) which reveal the wider value, financial and intellectual, of much of the work that has been undertaken and that is often not apparent. Continuous development of the UK technological base in this area has led to innovative contributions on a global scale and considerable financial return.

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Section: Global Context Of Early Uk Developmentsmentioning

confidence: 99%

The origins and development of free-electron lasers in the UK

Seddon

Poole

2023

Notes Rec.

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“…64 However, these systems rely on linear electron accelerators to produce a relativistic beam to be injected into an undulator, and therefore are still very expensive and not easily implemented. 65 For this reason, there are effectively only three open FEL-IRMPD facilities in the world: CLIO in France, 66 FELIX in The Netherlands 67 and the FHI-FEL in Germany. 68,69 Here we report the development of an IRMPD system for the photoinduced fragmentation and fully automated spectra acquisition of mass-selected ions using both CO 2 and OPO/OPA sources for ion excitation.…”

Section: Introductionmentioning

confidence: 99%

Development of a photoinduced fragmentation ion trap for infrared multiple photon dissociation spectroscopy

Penna

Cervi

Rodrigues‐Oliveira

et al. 2020

Rapid Comm Mass Spectrometry

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Rationale Methods for isomer discrimination by mass spectroscopy are of increasing interest. Here we describe the development of a three‐dimensional ion trap for infrared multiple photon dissociation (IRMPD) spectroscopy that enables the acquisition of the infrared spectrum of selected ions in the gas phase. This system is suitable for the study of a myriad of chemical systems, including isomer mixtures. Methods A modified three‐dimensional ion trap was coupled to a CO2 laser and an optical parametric oscillator/optical parametric amplifier (OPO/OPA) system operating in the range 2300 to 4000 cm−1. Density functional theory vibrational frequency calculations were carried out to support spectral assignments. Results Detailed descriptions of the interface between the laser and the mass spectrometer, the hardware to control the laser systems, the automated system for IRMPD spectrum acquisition and data management are presented. The optimization of the crystal position of the OPO/OPA system to maximize the spectroscopic response under low‐power laser radiation is also discussed. Conclusions OPO/OPA and CO2 laser‐assisted dissociation of gas‐phase ions was successfully achieved. The system was validated by acquiring the IRMPD spectra of model species and comparing with literature data. Two isomeric alkaloids of high economic importance were characterized to demonstrate the potential of this technique, which is now available as an open IRMPD spectroscopy facility in Brazil.

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“…While the lasing wavelengths of conventional lasers are limited by the energy states of gain media, a free-electron laser (FEL), utilizing the electron beam as a broadband gain medium, is capable of delivering electromagnetic radiation ranging from the infrared to hard X-ray regions, depending on the electron beam energy and magnetic field strength of the undulator [1]. In the early stage, most of FELs operated as multi-pass low-gain oscillators, producing low-energy photons [2][3][4][5][6]. More recently, the successful operations of single-pass high-gain FEL user facilities [7][8][9][10][11][12] in the soft and hard x-ray regimes enable the simultaneous probing of both the ultra-small and ultra-fast worlds.…”

Section: Introductionmentioning

confidence: 99%

Gain cascading scheme of a free-electron-laser oscillator

Deng

2017

Phys. Rev. Accel. Beams

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The low-gain free-electron laser (FEL) oscillators are cutting-edge tools to produce fully coherent radiation in the spectral region from terahertz to vacuum ultraviolet, and potentially in hard X-ray. In this paper, it is proposed to utilize an FEL oscillator with multi-stage undulators to enable gain cascading in a single-pass, making it possible to achieve shorter single pulse lengths, higher peak power, and even higher pulse energy than classical FEL oscillator. Theoretical analysis and numerical simulations in the infrared and hard X-ray regions show that our proposal is effective.

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First lasing with FELIX

Cited by 48 publications

References 6 publications

The origins and development of free-electron lasers in the UK

The origins and development of free-electron lasers in the UK

Development of a photoinduced fragmentation ion trap for infrared multiple photon dissociation spectroscopy

Gain cascading scheme of a free-electron-laser oscillator

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