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Fusion Science and Technology
August 2024
Latest News
QSA Global, Niowave to collaborate on Ac-225 production using Ra-226
QSA Global, a provider of radioisotope products, and Niowave, a Michigan-based producer of medical radioisotopes, announced that the companies will codevelop a scalable radium purification process using Niowave’s radium-226 processing technology to meet the demand for actinium-225, an alpha-emitter used in the treatment of cancer. According to the companies, the strategic partnership marks a significant advancement in the field of radiopharmaceutical technology, enhancing the supply chain for critical radioisotopes, including Ac-225.
Niowave uses a closed-loop cycle to produce high-purity Ac-225 and other alpha emitters from Ra-226 using a superconducting electron linear accelerator. According to the company’s website, the electron beam impinges on a photon converter to irradiate the Ra-226, inducing a photon-neutron reaction to Ra-225, which decays to Ac-225.
A. Wojenski, K. Pozniak, G. Kasprowicz, W. Zabolotny, A. Byszuk, P. Zienkiewicz, M. Chernyshova, T. Czarski
Fusion Science and Technology | Volume 69 | Number 3 | May 2016 | Pages 595-604
Technical Paper | doi.org/10.13182/FST15-189
Articles are hosted by Taylor and Francis Online.
This work refers to the measurement system for soft-X-ray radiation (SXR) diagnostics using gaseous electron multiplier (GEM) detectors. In terms of tokamak plasma parameter control and optimization, it is important to determine the level of SXR generated by plasma. This work describes the whole system including the GEM detector, electronic modules, and data acquisition (DAQ) path. The structure of the DAQ system is presented in terms of hardware, firmware, and software architecture. The currently developed hardware allows sampling of the GEM detector signals with 125-MHz frequency and real-time field-programmable gate array (FPGA) processing. It enables processing of all events generated by the highest possible photon flux for the GEM detector. The developed FPGA firmware registers digitized GEM detector signals with a global trigger up to 625 kHz with all 64 channels sampling simultaneously and stores them in the local memory. Therefore, it makes it possible to obtain the photon energy spectra at high photon flux (105 to 106 counts · mm−2 · s−1) in online acquisition mode. The software block performs a DAQ system start-up configuration and provides the user interface. The first preliminary results of laboratory tests are also presented.