Öffnet in neuem Fenster Opens in a new window Öffnet externe Seite Opens an external site Öffnet externe Seite in neuem Fenster Opens an external site in a new window

Research Overview

MiniBEE (MiniBEamline Experiment)

Type: Research Cooperation

Supported by: Universität der Bundeswehr München

Time Frame: 2023-2028

Point of Contact: Prof. Dr. Andrea Denker

Department:  BE-APT

Device: Zyklotron

 

At this innovative beamline it will be possible to perform groundbreaking pre-clinical research in particle therapy, which has the potential to revolutionize the application of particles in cancer therapy using new application techniques, such as the use of ultra short pulses in FLASH therapy or of tiny beamlets in particle minibeam therapy (PMBT). All this aims in the protection of healthy tissue and increased tumor control.

 An dieser innovativen Beamline wird es möglich, bahnbrechende präklinische Forschung in der Teilchentherapie durchzuführen, die das Potenzial hat, die Anwendung von Teilchen in der Krebstherapie durch neue Anwendungstechniken, wie den Einsatz ultrakurzer Pulse in der FLASH-Therapie oder von winzigen Beamlets in der Partikel-Minibeam-Therapie (PMBT), zu revolutionieren. All dies zielt auf den Schutz von gesundem Gewebe und eine bessere Tumorkontrolle ab.

 

Rousseti, A.; Dollinger, G.; Neubauer, J.; Reindl, J.; Mayerhofer, M.; Dittwald, A.; Denker, A.; Kourkafas, G.; Bundesmann, J.: Current status of MINIBEE: minibeam beamline for preclinical experiments on spatial fractionation in the FLASH regime. In: Editorial Board: Fulvia Pilat ... [Ed.] : Proceedings of the 15th International Particle Accelerator Conference (IPAC'24) : Nashville, TN, 19-24 May 2024Genieve: JACoW, 2024. - ISBN 978-3-95450-24, p. THPR62/3663-3666
doi: 10.18429/JACoW-IPAC2024-THPR62

Rousseti, A.; Dollinger, G.; Mayerhofer, M.; Neubauer, J.; Reindl, J.; Bundesmann, J.; Denker, A.; Kourkafas, G.: Preclinical proton minibeam radiotherapy facility for small animal irradiation. In: Ralph Assmann [Ed.] : IPAC'23 : Proceedings of the 14th International Particle Accelerator Conference ; Venice, Italy from 7 to 12 May 2023Geneve: JACoW, 2023. - ISBN 978-3-95450-231-8, p. THPL043/1-3
doi: 10.18429/JACoW-IPAC2023-THPM065

SuperSurfer

Superconducting and Sustainable RF for Efficient acceleratoRs: SuperSurfer

Type:  Funded project

Supported by: BMBF Verbundforschung: ErUM Teilchen

Time Frame:  2024 – 2027

Point of Contact:  Jens Knobloch

Department:   BE-IAS

Abstract: 

Superconducting accelerators play a pivotal role in scientific research, enabling advancements in particle physics, nuclear physics, materials science, and a number of other fields. As society increasingly emphasizes sustainability and energy efficiency, the importance of implementing these concepts in accelerator technologies is evident. Presently, superconducting radiofrequency (SRF) technology is the most efficient method for particle acceleration available. Yet even for SRF systems, cryogenics for needed for cooling to 2 K is inherently very inefficient and can require multi-MW electrical power, dependending on the accelerator application. Were one to realize operation at 4.5 K, the efficiency improves by roughly a factor of three.

 

To achieve the goal of 4.5 K operation, bulk niobium must be replaced by another material with considerably lower surface resistance at this temperature. The most promising approach is to coat the inner surface of copper cavities (rather than Nb cavities) with an Nb3Sn layer, with a higher critical temperature than niobium. High-thermal conductivity copper is an ideal substrate, since Nb3Sn has a very poor thermal conductivity. The SuperSurfer project aims at a thorough investigation of a new, simpler approach based on the “Bronze Route” to implement such layers on copper cavities. Importantly, the use of a copper substrate also benefits conduction cooling (as opposed to liquid-helium cooling) of the dissipated heat, an essential aspect for the future implementation of cryocoolers. SuperSurfer explores new methods of Nb3Sn production, using state-of-the-art materials characterization techniques and innovative RF characterization systems developed in previous BMBF calls.

 

 

 

NOVALIS

Novel Accelerator Technology for Efficient LIght Sources

Type: Funded project

Supported by:  BMBF Verbundforschung: ErUM Pro

Time Frame:  2022 – 2025

Point of Contact:  Oliver Kugeler

Department:   BE-IAS

Abstract: 

NOVALIS aims at significantly reducing the operational power losses of superconducting radio-frequency (SRF) cavities, while also increasing the accelerating field to the range of 50-100MV/m, inaccessible with currently available resonators made from bulk Niobium (Nb). The envisaged performance increase will be achieved by coating the cavity’s inner surface with thin layers of new SRF materials capable of outperforming Nb, thus leading to higher fields and a lower surface resistance. The benefit of this approach will be twofold: First lower power losses would enable to increase the duty cycle of pulsed machines and allow for high-field continuous-wave operation with tolerable power losses, and second higher accelerating fields would increase the energy reach for existing machines and reduce the cost for novel light sources to be build. To characterize the suitability of superconductors for RF cavities, it is essential that the RF surface resistance is measured. HZB operates a very powerful system, the QPR, which can do so over an extensive parameter range. However, the tests are time consuming. To rapidly pre-select promising samples for in-depth characterization, a new system is being developed (RaSTA = Rapid Sample Testing Apparatus) which is fully compatible with the QPR.

Learn more: https://www.helmholtz-berlin.de/forschung/oe/be/science-technology-accelerating-systems/projects/novalis_en.html