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1.
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Target Development towards First Production of High-Molar- Activity $^{44g}$Sc and $^{47}$Sc by Mass Separation at CERN-MEDICIS
/ Mamis, Edgars (CERN ; Latvia U.) ; Duchemin, Charlotte (CERN) ; Berlin, Valentina (CERN) ; Bernerd, Cyril (CERN) ; Bovigny, Mathieu (CERN) ; Chevallay, Eric (CERN) ; Crepieux, Bernard (CERN) ; Gadelshin, Vadim Maratovich (Mainz U., Inst. Phys.) ; Heinke, Reinhard (CERN) ; Hernandez, Ronaldo Mendez (CERN ; Havana, ISCTN) et al.
The radionuclides 43Sc, 44g/mSc, and 47Sc can be produced cost-effectively in sufficient yield for medical research and applications by irradiating natTi and natV target materials with protons. Maximizing the production yield of the therapeutic 47Sc in the highest cross section energy range of 24–70 MeV results in the co-production of long-lived, high-γ-ray-energy 46Sc and 48Sc contaminants if one does not use enriched target materials. [...]
2024 - 28 p.
- Published in : Pharmaceuticals 17 (2024) 390
Fulltext: PDF;
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2.
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Labview-Based Template for Enhanced Accelerator Systems Control: Software Solutions for the CERN-ISOLDE Facilities
/ Charrondière, Cedric (CERN) ; Andreassen, Odd (CERN) ; Benoit, Antoine (Unlisted, CH) ; Boorman, Gary (Unlisted, CH) ; Galetti, Elena (CERN) ; Heinke, Reinhard (CERN) ; Le, Line (CERN) ; Marsh, Bruce (CERN) ; Rossel, Ralf (CERN) ; Rothe, Sebastian (CERN) et al.
ISOLDE is part of the experimental infrastructure with-in the CERN accelerator complex that provides radioac-tive ion beams for studies of fundamental nuclear phys-ics, astrophysics, condensed matter physics and medical applications. Complementing the available controls in-frastructure, an easy-to-use set of applications was devel-oped to allow operators to record and display signals from multiple sources, as well as to provide drivers for non-standard, custom-made instruments and specialized off-the-shelf components. [...]
2023 - 5 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP088
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP088
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3.
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Hot electron enhanced photoemission from laser fabricated plasmonic photocathodes
/ Martinez-Calderon, Miguel (CERN) ; Groussin, Baptiste (CERN) ; Bjelland, Victoria (CERN ; Norwegian U. Sci. Tech.) ; Chevallay, Eric (CERN) ; Fedosseev, Valentin N (CERN) ; Himmerlich, Marcel (CERN) ; Lorenz, Pierre ; Manjavacas, Alejandro ; Marsh, Bruce A (CERN) ; Neupert, Holger (CERN) et al.
Photocathodes are key elements in high-brightness electron sources and ubiquitous in the operation of large-scale accelerators, although their operation is often limited by their quantum efficiency and lifetime. Here, we propose to overcome these limitations by utilizing direct-laser nanostructuring techniques on copper substrates, improving their efficiency and robustness for next-generation electron photoinjectors. [...]
2023 - 9 p.
- Published in : 10.1515/nanoph-2023-0552
Fulltext: PDF;
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4.
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Evaluation of Timing and Synchronization Techniques on NI CompactRIO Platforms
/ Andreassen, Odd (CERN) ; Charrondière, Cedric (CERN) ; Develle, Kevin (CERN) ; Rossel, Ralf (CERN) ; Zilliox, Thomas (CERN)
For distributed data acquisition and control system, clock synchronization between devices is key. The internal CPU clock of a CompactRIO has an accuracy of 40 ppm at 25 degree Celsius, which can cause up to 3 sec of drift per day. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-ICALEPCS2019-WEPHA027
In : 17th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS), New York, United States, 5 - 11 Oct 2019, pp.WEPHA027
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5.
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Integrating COTS Equipment in the CERN Accelerator Domain
/ Andreassen, Odd (CERN) ; Charrondière, Cedric (CERN) ; Develle, Kevin (CERN) ; Rijllart, Adriaan (CERN) ; Rossel, Ralf (CERN) ; Steen, Joergen (CERN) ; Tagg, Joseph (CERN) ; Zilliox, Thomas (CERN)
Successful integration of industrial equipment in the CERN accelerator complex relies mainly on 3 key components. The first part is the Controls Middleware (CMW). [...]
2019 - 5 p.
- Published in : 10.18429/JACoW-ICALEPCS2019-WEPHA026
In : 17th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS), New York, United States, 5 - 11 Oct 2019, pp.WEPHA026
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6.
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The electron affinity of astatine
/ Leimbach, David (CERN ; U. Gothenburg (main) ; Mainz U., Inst. Phys.) ; Karls, Julia (U. Gothenburg (main)) ; Guo, Yangyang (U. Groningen, VSI) ; Ahmed, Rizwan (NCP, Islamabad) ; Ballof, Jochen (CERN ; Mainz U., Inst. Kernchem.) ; Bengtsson, Lars (U. Gothenburg (main)) ; Pamies, Ferran Boix (CERN) ; Borschevsky, Anastasia (U. Groningen, VSI) ; Chrysalidis, Katerina (CERN ; Mainz U., Inst. Phys.) ; Eliav, Ephraim (Tel Aviv U. (main)) et al.
One of the most important properties influencing the chemical behavior of an element is the electron affinity (EA). Among the remaining elements with unknown EA is astatine, where one of its isotopes, $^{211}$At, is remarkably well suited for targeted radionuclide therapy of cancer. [...]
arXiv:2002.11418.-
2020 - 9 p.
- Published in : Nature Commun. 11 (2020) 3824
Fulltext: PDF; Fulltext from publisher: PDF;
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In-source laser photoionization spectroscopy of Bi isotopes: accuracy of the technique and methods of data analysis
/ Seliverstov, Maxim (St. Petersburg, INP) ; Barzakh, Anatoly (St. Petersburg, INP) ; Ahmed, Rizwan (CERN ; NCP, Islamabad) ; Chrysalidis, Katerina (CERN) ; Goodacre, Thomas Day (CERN) ; Fedorov, Dmitry (St. Petersburg, INP) ; Fedoseev, Valentine (CERN) ; Granados, Camilo (CERN) ; Marsh, Bruce (CERN) ; Molkanov, Pavel (St. Petersburg, INP) et al.
/IS608
The in-source laser photoionization spectroscopy was applied to study neutron-deficient Bi isotopes. Data analysis and accuracy-related aspects of this technique are discussed. [...]
2020
- Published in : Hyperfine Interact. 241 (2020) 40
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8.
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Laser photodetachment of radioactive $^{128}$I$^−$
/ Rothe, Sebastian (CERN) ; Sundberg, Julia (CERN ; U. Gothenburg) ; Welander, Jakob (U. Gothenburg) ; Chrysalidis, Katerina (CERN ; Mainz U., Inst. Phys.) ; Goodacre, Thomas Day (CERN) ; Fedosseev, Valentin (CERN) ; Fiotakis, Spyridon (CERN) ; Forstner, Oliver (U. Jena) ; Heinke, Reinhard (Mainz U., Inst. Phys.) ; Johnston, Karl (CERN) et al.
The first experimental investigation of the electron affinity (EA) of a radioactive isotope has been conducted at the CERN-ISOLDE radioactive ion beam facility. The EA of the radioactive iodine isotope (128)I (t (1/2) = 25 min) was determined to be 3.059 052(38) eV. [...]
2017 - 10 p.
- Published in : J. Phys. G 44 (2017) 104003
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Coding Science Days 2017 edition
/ Rossel, Ralf Erik (speaker) (Johannes Gutenberg Universitaet Mainz (DE)) ; Copy, Brice (speaker) (CERN)
The CODING SCIENCE DAYS are an opportunity for STEM Teachers and students aged 12 to 18 to get familiar with programming using original scientific projects designed by educators, this year featuring exciting kits such as :
- Poppy Ergo Jr (a very fun robotic arm),
- Hepialight (an educational microcontroller designed at hepia, the Geneva engineering school)
- Muon Hunter (a DIY cosmic particle detector)
- Chiby (a programmable touchscreen based on Python pygamezero)
2017 - 293.
IT Lightning Talks (ITLT); IT Lightning Talks: session #14
External links: Talk details; Event details
In : IT Lightning Talks: session #14
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10.
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Laser photodetachment of radioactive ions: towards the determination of the electronegativity of astatine
Reference: Poster-2017-585
Created: 2017. -1 p
Creator(s): Rothe, Sebastian; Sundberg, Julia; Welander, Jakob Emanuel; Chrysalidis, Katerina; Day Goodacre, Thomas [...]
Negatively charged ions are mainly stabilized through the electron correlation effect. A measure of the stability of a negative ion is the electron affinity, which the energy gain by attaching an electron to a neutral atom. This fundamental quantity is, due to the almost general lack of bound excited states, the only atomic property that can be determined with high accuracy for negative ions. We will present the results of the first laser photodetachment studies of radioactive negative ions at CERN-ISOLDE. The photodetachment threshold for the radiogenic iodine isotope 128I was measured successfully, demonstrating the performance of the upgraded GANDALPH experimental beam line. The first detection of photo-detached astatine atoms marks a milestone towards the determination of the EA of this radioactive element.
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