Neutron scattering has proven to be one of the most powerful methods for the investigation of structure and dynamics of condensed matter on atomic length and time scales. Neutron techniques have a broad range of applications in physics, chemistry, magnetism and superconductivity, material sciences, cultural heritage, biology, soft matter, health, and environmental and climate science. With the...
At LANSCE, we are developing a new technique for measuring our H- beam energy by examining the decay photon spectrum distribution following neutralization. The photons emitted during the decay have well-known discrete energies. Therefore, the Doppler shift of their wavelength reveals the speed of the particles they came from, which allows for the precise calculation of beam energy. This method...
Nuclear analytical techniques (NAT), and in particular accelerator-based techniques such as Ion Beam Analysis (IBA) for elemental and molecular analysis and Accelerator Mass Spectrometry (AMS) for radiocarbon dating, have long been applied to cultural heritage forensics, involving the characterization, authentication, and dating of artefacts. Nevertheless, there is still a considerable gap...
Brilliant x-ray sources including coherent free electron lasers at energies up to keVs, and incoherent monoenergetic Compton scattering sources at MeV energies and beyond have revolutionized a broad range of science from materials to nuclear signatures. Such sources require linacs at GeV to tens of GeV energies, and technologies to make such accelerators smaller have the potential to both...
At the European Organization for Nuclear Research (CERN), the Large Hadron Collider (LHC) pursues an unprecedented effort to push further the frontiers of physics. Both the accelerator and its four detectors (ALICE, ATLAS, CMS, LHCb) collectively form a one-of-a-kind advanced technological system capable of producing and recording the most energetic particle collisions ever achieved under...
A laser ion source is well-known as a high current and high charge state heavy ion source using laser ablation of solid materials. This is the only type of an ion source capable of producing ampere-class heavy ion beam using compact and simple ion source structure. However, it is difficult to transport and inject such a high current beam into the first stage accelerator, typically a radio...
Oak Ridge National Laboratory’s (ORNL) Second Target Station (STS) is designed to become the world’s highest peak-brightness spallation source of cold neutrons. Exceptionally bright cold neutron beams will provide transformative capabilities to examine novel materials for advanced technologies in the decades to come. Bright beams will enable new neutron scattering experiments using innovative...
We will present the design of a compact, highly efficient 9.3 GHz linac with pulse-to-pulse tunable output energy. This linac will produce of up to 500 W of 10 MeV electron beam power for medical and security applications. The novel feature of this linac is its patented traveling wave accelerating structure. This structure combines the benefits of high efficiency with the ability to vary the...
Achieving high accelerating gradient and the benefit of compactness, improved transport, and high brightness beams is limited by the onset of rf induced breakdown and reduced rf to beam efficiency. The operation of normal conducting accelerators at cryogenic temperatures provides a pathway to addressing both of these principle challenges by increasing material strength, reducing susceptibility...
A compact RF linac design has been developed for an Accelerator Driven System (ADS). The linac is about 150 meters long and comprises a radio-frequency quadrupole (RFQ) and 20 superconducting RF cryomodules. Three types of half-wave cavities and two types of elliptical cavities have been designed and optimized for high performance at the frequencies of 162.5, 325 and 650 MHz. The lattice was...
Now that superconducting RF accelerators have become the standard for discovery science facilities, it is time for them to be applied to applications in the industrial sector. As part of its REDUCE objective, the Office of Radiological Security of the National Nuclear Security Administration (NNSA) supports efforts to reduce reliance on radioisotopes through the development of alternative...
A novel neutron source concept, in which a deuterium beam (energy of about 100 keV) is to be injected into a tube filled with tritium gas or tritium plasma to generate D-T fusion reactions whose products are 14.06 MeV neutrons and 3.52 MeV alpha particles, is described. At the opposite end of the tube, the energy of deuterium ions that did not interact is recovered. Be walls of proper...
Abstracts for the AccelApp 2024 meeting will be assembled into an electronic booklet. Abstracts will need to be uploaded, as a Word file, to the conference website https://indico.jlab.org/event/722/abstracts/. LaTeX files will not be accepted. Abstracts must adhere to this Word template. This template provides a three-line header as shown above, a boldface title, and a comma-separated list of...
Accelerator driven neutron sources with high brilliance neutron provision present an attractive alternative to classical neutron sources of fission reactors and spallation sources to provide neutrons for science and indsutry. With the availability of high current proton accelerator systems, a novel class of such neutron facilities can be established termed High-Current Accelerator-driven...
The demand for high-power proton beams has steadily increased over the past few decades, with applications ranging from spallation neutron sources to accelerator-driven subcritical reactors. Driven by this remarkable momentum, significant technological developments have been achieved, and several machines are now capable or in the process of delivering beams in the MW range.
In this paper...
The negative hydrogen ion is the work horse ion in terms of medical radioisotope production world wide. This paper shall discuss latest developments in Penning ion source developments for cyclotrons utilizing internally produced H‾, largely for Positron Emission Tomography (PET) radioisotopes. In addition, evolution of the volume-cusp type ion source designs for H‾ production external to...
Due to their unique analytical and irradiation capabilities, ion beam accelerators play a major role in solving problems of modern society related to environmental pollution and monitoring, climate change, water and air quality, forensics, cultural heritage, agriculture, development of advanced materials for energy production via fission or fusion, and many other fields. Moreover, particle...
Chirped pulse amplification (CPA) laser systems, exemplified by the Advanced Titanium-Sapphire Laser (ATLAS) operated in the Centre for Advanced Laser Applications (CALA) at the Ludwig-Maximilians-University (LMU) Munich, are capable of generating laser pulses with Petawatt peak power and ~30 fs duration. When focused tightly onto targets, typically (sub-)micrometer thin foils, these pulses...
Madison Accelerator Laboratory (MAL) is a unique electron/bremsstrahlung facility on the campus of James Madison University. The facility features a medical electron linear accelerator (linac), an X-ray imaging system, and a suite of particle detection instrumentation. The Siemens Mevatron linac produces electron beams with energies from 6-15 MeV and bremsstrahlung photon beams with endpoint...
The Argonne Tandem Linear Accelerator System (ATLAS) at Argonne National Laboratory is a heavy ion linac that can accelerate beams of all stable ions from hydrogen to uranium and many radioactive isotopes. ATLAS has the flexibility to deliver accelerated beams to several end stations with a wide range of energies and beam currents, and it is now in the process of upgrading to a multi-user...
Niobium-tin has been identified as the most promising next-generation superconducting material for accelerator cavities. This is due to the higher critical temperature (Tc = 18 K) of Nb3Sn compared to niobium (TC = 9.2 K), which leads to greatly reduced RF losses in the cavity during 4.5 K operation. This allows two important changes during cavity and cryomodule design. First, the higher Tc...
The Second Target Station (STS) is currently under preliminary design at Oak Ridge National Laboratory (ORNL). STS will significantly expand the existing capabilities of the Spallation Neutron Source (SNS) at ORNL by constructing a second target station that utilizes the existing SNS accelerator and provides a world leading source of cold (long wavelength) neutrons. The Target System design...
There is a growing demand in industrial and research communities for a laboratory-scale high-brightness light sources, in a wide range of applications. At high average powers such sources are needed for industrial processing, at moderate powers – mostly for metrology, and at a lower power for qualification, inspection, testing, and R&D. Inverse Compton Scattering (ICS) is one very promising...
The replacement of radioactive sources with alternative technologies has been identified as a priority by international authorities, due to the risk of accidents and diversion by terrorists for use in Radiological Dispersal Devices. Many of these sources can be replaced with the X-rays produced by electron beams accelerated to MeV energies. However, the size, weight, and costs of electron...
Recent advancements in accelerator design, manufacturing technology, and supporting subsystems have ushered in a renaissance in compact accelerator-based electron, X-ray, and gamma sources. These sources have reduced size, weight, and power requirements with negligible or otherwise acceptable reduction in output performance. The use of frequencies above 9 GHz, and even >100 GHz, have allowed...
Since the introduction of particle accelerators in 1984, primarily employed in radiation therapy, industry, and security, Thailand has progressively utilized the advantages of accelerator technologies across various applications, expanding to agriculture, scientific research, and transportation. Notably, the “Siam Photon Source (SPS)”, a 1.2 GeV synchrotron light generator, was established in...
Staff at Pacific Northwest National Laboratory (PNNL), at the request of the Office of Radiological Security (ORS) within the U.S. National Nuclear Security Administration (NNSA), identified impediments for those companies desiring to transition from cobalt-60 to an accelerator technology for processing product. One of those impediments identified was a dose simulation software tool that was...
The Second Target Station (STS) project is an expansion to the existing Spallation Neutron Source (SNS) in Oak Ridge, TN. The project is currently in the preliminary design phase. STS seeks to provide world leading peak cold neutron brightness to a suite of new instruments, eight of which are included in the project scope. SNS is currently in the final stages of the Proton Power Upgrade...
Non-destructive analysis techniques became an important approach for the characterization of cultural heritage and conservation science. In this study, for the first time, Synchrotron-based X-ray Fluorescence (SRXRF) analysis, at the Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME), was utilized to examine and analyze three Byzantine plaster figurines...
TRIUMF’s 30 MeV electron linac is transitioning from a commissioning operation to a user operation. The machine’s main user is ARIEL, which will be ready to take beam in 2026. But as of today, more users are upcoming, giving the machine the possibility to support scientific and medical experiments. Those upcoming users require modifications to the existing machine in order to support the...
CNAO is one of the four centres in Europe, and six worldwide, offering treatment of tumours with both protons and carbon ions. Besides clinical activity, CNAO has also research and education as institutional purposes and for this reason in addition to the three treatment rooms, the CNAO center is equipped with an “experimental room” dedicated to experimental activities, which is also available...
With the development of radiation techniques, attempts were made to use both gamma radiation and electron beam radiation for the disinfection of various types of historical objects that were inhabited by microorganisms or insects, which ended up causing the objects' destruction. . However, these technologies suffer from some limits as total dose and dose rate can influence the efficient...
The IFMIF-DONES Facility will be a first-class scientific infrastructure situated in Granada, Spain. It will comprise an accelerator-driven neutron source capable of delivering ~1e17 n/s with a broad peak at 14 MeV. The neutron source will be generated by impinging a continuous wave 125 mA, 40 MeV deuteron beam into a liquid Li jet target, circulating at 15 m/s and evacuating the 5 MW power of...
For 50 years, TRIUMF has stood at the frontier of scientific understanding as Canada’s Particle Accelerator Centre. Driven by two made-in-Canada cutting edge accelerators - the world’s largest cyclotron, and our new high-power superconducting linear accelerator - we continue to ask the big questions about the origins of the universe and everything in it.
With over five decades of...
The recently evolved U4 upgrade of the single-pass RF linac driver for IFE [1] is based on Basko’s assessments of the requirements for stable compression, fast ignition, and high-gain fusion burn of large cylindrical fuel pellets [2]. Basko’s simulations use the beams of Koshkarev’s driver [3]: 100 GeV Bi for compression and eight, telescoping Pt beams for fast ignition: four Pt isotopes in...
A 5SDH Tandem Pelletron accelerator was commissioned at the Lebanese Atomic Energy Commission in 1999. It was to promote the use of ion beam analysis techniques (IBA) among the local scientific community for their research studies, as well as to perform collaborative projects with different potential users and collaborators from abroad. Many IBA applications have been done in cultural...
The high brilliance Variable Energy GAmma (VEGA) System under implementation at Extreme Light Infrastructure - Nuclear Physics (ELI-NP) in Romania, uses a storage ring as an Inverse Compton Scattering (ICS) source. The storage ring is filled by a warm linear accelerator with a maximum energy of 800 MeV. A laser system drives a high-finesse optical cavity to resonantly build-up pulsed laser...
