BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:High-precision ion irradiation of materials and devices for protot yping and applications to microelectronics\, photovoltaics\, and space DTSTART;VALUE=DATE-TIME:20240417T080000Z DTEND;VALUE=DATE-TIME:20240417T082000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-209@indico.nsrrc.org.tw DESCRIPTION:Speakers: Zeljko Pastuovic (CAS-ANSTO)\nThis work presents rec ent achievements in development and applications of ANSTO’s ANTARES [1] and SIRIUS [2] microprobe systems for the high-precision irradiation of ma terials and devices for prototyping and applications to microelectronics\, photovoltaics and space. The ANSTO systems can be optimized to deliver a required combination of linear energy transfer\, ion range\, scanning size and speed and uniform ion flux or dose rate of proton (1-10 MeV/u) and me dium - heavy ion (1-3 MeV/u) microbeams produced by the 10 MV tandem Van d e Graaff accelerator and focusing ion microprobe (EM/q2=120)\, and thus me et custom demand for testing. The ANSTO testing capability offers 1) the 3 D precision targeting of ions in user preselected region of interest in a device\, 2) the rapid scanning microbeam irradiation with customized sweep time (pixel dwell time and pixel size)\, the slower\, but larger in dimen sion\, sample scanning with adjustable micromanipulator stage velocity or the hybrid-scanning (combining benefits of two) [3]\, 3) the optimized ion microbeam parameters (LET\, energy(E)\, range(R)\, flux\, and particle ra te) and 4) irradiation in vacuum or in ambient [4]. For testing on the mic rometer and microsecond scale we currently provide focused microbeams of: 1) protons (up to E=12MeV\, LET(Si)≈ 0.03MeVcm2/mg\, R(Si)≈800 micron) \, carbon ions (up to E=36 MeV\, LET≈3 MeVcm2/mg\, R≈40 micron)\, sili con ions (42 MeV\, 14 MeVcm2/mg\, 15 micron)\, chlorine (54 MeV\, 17 MeVcm 2/mg\, 16 micron)\, iron (55 MeV\, 28 MeVcm2/mg\, 13 micron) and nickel io ns (62 MeV\, 28 MeVcm2/mg\, 13 micron)\, but other ions with different E\, LET and R values can also be arranged. As examples\, we show case studies of 1) the Ion Beam Induced Charge – IBIC imaging of SOI and CVD diamond microdosimeters [5]\, 2) the PEEK material radiation hardness [6]\, 3) th e effectiveness of prototyped magnetic shielding against ions in LEO for s mall cube satellites [7]\, 4) the radiation hardness and thermal recovery of proton irradiated Perovskite solar cells [8]\, and 5) the SEU and TID e valuation of SRAM chips [4]. \n\n[1] R. Siegele et al\, Nucl. Instr. Meth. in Phys. Res. B 158\, 31 (1999).\n[2] Z. Pastuovic et al\, Nucl. Instr. M eth. in Phys. Res. B 404\, 1 (2017).\n[3] S. Peracchi et al.\, Proc. 22nd Eur. Conf. on Radiat. Effects Compon. Syst. (RADECS)\, Venice\, Italy\, 20 22.\n[4] S. Peracchi et al.\, IEEE Trans Nucl. Sci. (In Press). \n[5] V. Pan et al.\, IEEE Trans. Nucl. Sci. 70(4)\, 568 (2023).\n[6] K. Rasheed et al.\, Polymer Testing 132\, 108354 (2024).\n[7] Under review.\n[8] S. Tan g et al.\, Adv. Energy Materials 13\, 2300506 (2023).\n\nhttps://indico.ns rrc.org.tw/event/16/contributions/209/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/209/ END:VEVENT BEGIN:VEVENT SUMMARY:MOSkin dosimetry for very high-energy electron FLASH at Australian Synchrotron PEER DTSTART;VALUE=DATE-TIME:20240417T071000Z DTEND;VALUE=DATE-TIME:20240417T073000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-195@indico.nsrrc.org.tw DESCRIPTION:Speakers: James Cayley (Centre for Medical Radiation Physics - University of Wollongong)\nFLASH radiotherapy (RT) is an emerging cancer treatment modality that utilises much higher dose rates than conventional RT. Delivering radiation with ultra-high dose rates (UHDR) has been shown to spare healthy tissue while providing an equal or greater dose to the tu mour. Current research suggests the use of very high-energy electrons can provide further benefits\, such as treatment of deep seated tumours. Linac s have been used to deliver ultra-high dose rate electrons\, with current dosimetry utilising radiochromic film. However\, film does not provide the real-time results required in a clinical setting. The MOSkin detector\, d esigned at the Centre For Medical Radiation Physics at University of Wollo ngong is used in conventional radiotherapy and considered dose-rate indepe ndent over a limited range. This study aims to show that dose-rate indepen dence continues to exist when exposed to a UHDR\, very high energy electro n (VHEE) beam.\n\nThe Australian Synchrotron uses a linac to inject 100 Me V electrons\, capable of delivering pulses with expected dose rates of $10 ^7$ Gy/s. The linac lacks beam scanning or positioning equipment so an arr ay of five detectors was designed\, built and manually positioned with the assistance of a portable laser. An x-ray intensifier screen was positione d behind the array and imaged with a camera\, to collect spatial data and relative beam intensity between pulses. 13 beam currents were used to deli ver 300 pC pulses from 20 ns to 400 ns in length.\n\nThe detector with the highest response was assumed to be closest to the beam centre and an aver age response for each beam current was calculated. Dose rates for each pul se were estimated using a standard MOSkin calibration factor and range fro m approximately $7x10^5$ – $2.5x10^7$ Gy/s. A steep drop off in response was observed at beam currents below 2 mA. Beam profiles were created usin g the camera data\, with a Moffat distribution fitted to determine relativ e intensity between pulses at the detector's estimated location. The ampli tude was extracted from the distributions and normalised to 1\, which enab led plotting against normalised MOSkin data to evaluate detector response against the charge delivered. The MOSkin response is consistent with the x -ray intensifier screen and indicates pulses are being delivered to the ex perimental stage at lower beam current than that measured by the linac dia gnostics. \n\nWhile the imaging equipment cannot provide an estimate of do se\, it explains the variance in detector behaviour between pulses\, espec ially at lower dose rates. While uncertainty is large due to manual positi oning\, the experiment has shown that further investigation is justified a s the MOSkin appears suitable for dosimetry in UHDR VHEE FLASH environment s. Future experiments will be conducted to gain better spatial information as well as an independent measurement of dose.\n\nhttps://indico.nsrrc.or g.tw/event/16/contributions/195/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/195/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of High-power 4K Nb3Sn Superconducting RF Electron L inac for Production of Medical Radioisotopes DTSTART;VALUE=DATE-TIME:20240417T063000Z DTEND;VALUE=DATE-TIME:20240417T065000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-168@indico.nsrrc.org.tw DESCRIPTION:Speakers: Shigeru Kashiwagi (ELPH\, Tohoku University)\nVariou s types of radioisotopes (RIs) are used in the field of nuclear medicine f or diagnosis\, such as PET and SPECT. In recent years\, RIs are applied to therapy of cancer and the Ac-225 has been confirmed to be effective in th e treatment of advanced cancer. One of the promising RI production methods for medical application is the use of high-intensity beam in accelerators . In the case of an electron accelerator\, a photonuclear reaction is used in the RI production process. We have started research and development of a 4K niobium-tin (Nb3Sn) superconducting RF (SRF) electron accelerator sy stem for RI production\, which can be operated with a compact conduction c ooling system and does not require a large-scale cooling system. As a firs t step\, we plan to develop a single-cell Nb3Sn superconducting cavity and a cryomodule to cool it\, and to demonstrate its performance by beam acce leration experiments. In this presentation\, we report the basic design of the SRF electron linac and R&D schedule of the 35 MeV SRF linac for the R I production.\n\nhttps://indico.nsrrc.org.tw/event/16/contributions/168/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/168/ END:VEVENT BEGIN:VEVENT SUMMARY:Flexible organic semiconductors and amorphous silicon detectors fo r synchrotron microbeam radiation therapy dosimetry DTSTART;VALUE=DATE-TIME:20240417T065000Z DTEND;VALUE=DATE-TIME:20240417T071000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-214@indico.nsrrc.org.tw DESCRIPTION:Speakers: Marco Petasecca (University of Wollongong - Centre f or Medical Radiation Physics)\nIntroduction: Detectors that can provide ac curate dosimetry for microbeam radiation therapy (MRT) must satisfy a numb er of challenging criteria including having intrinsic radiation hardness\, a high dynamic range\, energy and dose rate independence\, and a spatial resolution able to resolve x-ray microbeam spacings on the order of hundr eds of microns.\nAt the Centre for Medical Radiation Physics\, several sol utions using electronics grade silicon devices have been explored in the l ast decade to measure dose in MRT. The limitations of silicon-based device s includes a small dose rate dependence and energy dependence\, but most s ignificantly\, a large radiation beam distortion caused by the silicon sub strate. Even in thinned devices\, this distortion has dimensions comparab le with the primary radiation field\, resulting in a measurable distortion of the dose profiles and in the under-estimation of the peak-to-valley do se ratios. In recent years\, detector architectures based on amorphous mat erials as sensitive volumes have been explored due to their possibility to be deposited in the form of films on flexible substrates such as Polyimid e (Kapton). Two examples of these technologies are hydrogenated amorphous silicon (a-Si:H) planar diodes and solution processable organic semiconduc tor bulk heterojunctions (OSC). The dosimetric performance of these detect ors are reported for both broad beam and microbeam modalities\, and over a range of beam filtrations with experiments performed at the Australian Sy nchrotron in Melbourne. \nResults: The synchrotron x-rays were spatially fractionated into an array of 50 microbeams with a Full-Width-Half-Max of 50 µm and a peak-to-peak distance of 400 µm to explore the potential to use amorphous thin film detectors for MRT dosimetry. The sensitivity and e nergy dependence of the aSi:H detectors fabricated with a combination of N \, P and intrinsic a-Si:H showed a high sensitivity and an energy dependen ce matching closely to the attenuation coefficient ratio of Silicon agains t Water\, despite the substrate being only 0.8 µm thick. The radiation da mage of a-Si:H detectors out to 40 kGy is limited and stabilises at approx imately -17% of the response in pristine conditions. Percentage depth dose profiles from the a-Si:H detector matched those from a PTW microDiamond d etector to within ± 5 % for all beam filtrations\, except in 3T Al-Al due to the energy dependence of the material. The microbeam field profile was reconstructed with a high spatial resolution and returned microbeam width s and peak-to-peak distances of (51 ± 1) µm and (405 ± 5) µm\, respect ively. The peak-to-valley dose ratio was measured as a function of depth a nd agrees within error to the values obtained with the PTW microDiamond. R egarding organic (OSC) detectors\, the highest sensitivity of the flexible 250 nm thick film under the broad beam was determined to be (1958 ± 31) pC Gy-1cm-2 under 0 V bias. The organic x-ray sensor measured a FWHM of (5 1.6 ± 1.9) µm averaged across 3 beam filter conditions. The radiation to lerance of the organic detector was explored by exposing the organic detec tor to continuous irradiation at a 4.5 kGy/s dose-rate. The direct respons e decreased by 35% after a total irradiation dose of 45 kGy. The dosimetri c performance of the OSC sensor with Kapton packaging was compared to an i dentical sample with PET packaging. Broad beam measurements of the PET sam ple demonstrated an additional signal from the PET fluorescence incident o n the OSC active layer generating an opposing negative charge that signifi cantly reduced the sensitivity and reliability of the output for sensitivi ty measurements.\nConclusions: The a-Si:H detectors proved to be comparabl e to commercially available dosimeters employed for quality assurance in M RT. OSCs devices show a high radiation hardness\, no energy dependence\, a nd extreme spatial resolution. The results demonstrate the need for additi onal considerations that must be given to the device packaging when design ing flexible and low-cost radiation detectors for real-world applications. This work proves that amorphous materials are interesting alternatives fo r dosimetry in synchrotron-based radiotherapy modalities.\n\nhttps://indic o.nsrrc.org.tw/event/16/contributions/214/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/214/ END:VEVENT BEGIN:VEVENT SUMMARY:Present status of a compact superconducting accelerator for heavy- ion therapy. DTSTART;VALUE=DATE-TIME:20240417T032000Z DTEND;VALUE=DATE-TIME:20240417T034000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-185@indico.nsrrc.org.tw DESCRIPTION:Speakers: Shunya Matsuba (National Institutes for Quantum Scie nce)\nNational Institutes for Quantum Science and Technology (QST\, succes sor organization of National Institutes for Radiological Science) started carbon ion particle therapy in 1994. \n Based on positive clinical results \, carbon-ion radiotherapy was authorized as a Highly Advanced Medical Tec hnology by Japanese government from 2003 and treatment for some kinds of c ancers was applied to Japanese National Health Insurance system from 2016. \n In addition\, developments of compact accelerator for widespread use of carbon-ion radiotherapy was conducted from 2004. As a results\, five faci lities based on these studies were constructed in Japan and several abroad .\n However\, construction is limited to universities and large hospitals\ , and downsizing of accelerator is needed for more widespread use. Therefo re\, a new project\, so called “Quantum Scalpel”\, has been launched f or development of more compact accelerator. In this project\, a synchrotro n will be downsized using combined-function superconducting magnets for ma in dipoles. At present\, construction of a compact superconducting synchro tron is currently underway. In this presentation\, the outline and present status of the project and R&D results of the superconducting synchrotron are presented.\n\nhttps://indico.nsrrc.org.tw/event/16/contributions/185/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/185/ END:VEVENT BEGIN:VEVENT SUMMARY:Design study of a high-current Q/A=1/2 K100 compact cyclotron for multi-disciplinary utilization DTSTART;VALUE=DATE-TIME:20240417T055000Z DTEND;VALUE=DATE-TIME:20240417T061000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-163@indico.nsrrc.org.tw DESCRIPTION:Speakers: Jong-Won Kim (Institute for Basic Science (IBS))\nMa gnetic design and beam optics studies have been carried out for a K100 cyc lotron\, which can accelerate Q/A=1/2 ions to the maximum energy of 25 MeV /u. Since proton acceleration using H2+ instead of H+ or H- can double the maximum beam current primarily limited by space charge effects at the inj ection energy of compact cyclotron\, we expect a maximum current of over 2 mA can be achieved by existent cyclotron technology. In addition\, D+\, H e2+ can be accelerated with slight adjustments of rf frequency so as to pr oduce fast neutrons and medical isotopes such as 211At for advanced cancer therapy. Also\, we consider employing a charge stripping method to extrac t H2+ at an energy of around 10 MeV to produce low-energy neutrons more op timally. I will present major features of the cyclotron design.\n\nhttps:/ /indico.nsrrc.org.tw/event/16/contributions/163/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/163/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of silicon radiation detectors for therapeutic and spa ce applications DTSTART;VALUE=DATE-TIME:20240417T034000Z DTEND;VALUE=DATE-TIME:20240417T040000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-216@indico.nsrrc.org.tw DESCRIPTION:Speakers: Anatoly Rosenfeld (CMRP\, School of Physics\, Univer sity of Wollongong\, Australia)\nCentre for Medical Radiation Physics at U niversity of Wollongong has long history of development of the silicon rad iation detectors for dosimetry in X-ray and particle radiation therapy. Ov erview of the developed pixelated Si detectors and their applications for high spatial and temporal resolution dosimetry on medical linac and on pro ton and heavy ion therapy will be presented.\n\nProgress in development of SOI detectors for microdosimetry and their application for RBE study of t he proton and heavy ions therapeutic beams in clinical setting will be dem onstrated. \n\nAnother application of SOI microdosimeter is for evaluatio n of radiation shielding and radiation protection of astronauts in radiati on environment typical for SPE and GCR. We demonstrated that SOI microdosi meters are suitable for in situ evaluation of radiation shielding efficien cy of multi-layered space craft and astronaut shelter walls in radiation f ields on accelerators mimicking SPE and GCR. Comparison of SOI microdosime ters with Timepix detector for biologically relevant dosimetry for astrona uts radiation protection in GCR environment will be presented.\n\nSOI mic rodosimeters have found application for wide range LET verification of ion s on accelerators for Single Even Effect (SEE) studies in microelectronics including at CERN for high LET ions like 1GeV/u Pb. Development of Si sen sors for displacement damage monitoring of space electronics will be discu ssed.\n\nhttps://indico.nsrrc.org.tw/event/16/contributions/216/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/216/ END:VEVENT BEGIN:VEVENT SUMMARY:Design and Implementation of accelerator control system for D-BNCT DTSTART;VALUE=DATE-TIME:20240417T082000Z DTEND;VALUE=DATE-TIME:20240417T084000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-210@indico.nsrrc.org.tw DESCRIPTION:Speakers: Xuan Wu (IHEP\, CAS)\nIn recent years\, Boron Neutro n Capture Therapy (BNCT) has seen vigorous development\, and the BNCT faci lity (D-BNCT) at the People's Hospital of Dongguan City\, Guangdong Provin ce\, is also under construction. This report introduces the design and imp lementation of the accelerator control system for D-BNCT\, which utilizes the Experimental Physics and Industrial Control System (EPICS) as the soft ware platform. has achieved remote control and status monitoring of the ac celerator equipment\, as well as interfaces with the treatment control sys tem. The system has been installed and is currently undergoing joint commi ssioning with the treatment control system.\n\nhttps://indico.nsrrc.org.tw /event/16/contributions/210/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/210/ END:VEVENT BEGIN:VEVENT SUMMARY:Linac-based Intense Coherent THz Sources Developed for User Applic ations DTSTART;VALUE=DATE-TIME:20240417T090000Z DTEND;VALUE=DATE-TIME:20240417T092000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-213@indico.nsrrc.org.tw DESCRIPTION:Speakers: Ming-Chang Chou (NSRRC)\nLinac-based coherent THz ra diation sources are being developed with the NSRRC high brightness photoin jector which has been installed in the Accelerator Test Area (ATA). The in jector is equipped with a laser-driven photocathode rf gun and a 5.2-m lon g S-band traveling-wave linac for beam acceleration. A 25 MeV beam of bunc h length as short as 240 fs has been produced from this injector by the so -called velocity bunching technique. Narrow-band superradiant THz radiatio n of pulse energy as high as 20 μJ and tunable central frequency from 0.6 to 1.4 THz can be generated by injecting such ultrashort beam into a U100 planar undulator. The intense THz light source will be a useful tool for applications such as material science and biomedical imaging. A THz user b eamline is under designed and construction and expected to open for users by the end of 2025.\n\nhttps://indico.nsrrc.org.tw/event/16/contributions/ 213/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/213/ END:VEVENT BEGIN:VEVENT SUMMARY:The application for accelerator based radiation therapy Overview o f the development in Taiwan DTSTART;VALUE=DATE-TIME:20240417T053000Z DTEND;VALUE=DATE-TIME:20240417T055000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-215@indico.nsrrc.org.tw DESCRIPTION:Speakers: YUNG-FA LU (Taichung Veterans General Hospital)\nAcc ording to the data and analysis of the Cancer Registry Annual Report in Ta iwan\, it can be seen from the trends in the past 10 years in 2020 that th e growth in the incidence of major cancers is approximately 3.32% in the n umber of patients per year. The first new case of aggressive cancer findin g in Taiwan is 116\,131 and there are 30\,796 patients received radiation therapy during the first course of treatment in 2018. It means around 28% of new case of aggressive cancer finding will receive radiotherapy. \nThe trends in emerging accelerator based radiation therapy in Taiwan has range d from 3D CRT in 1996 to IMRT in 2001 and even the vigorous development of particle therapy since 2015. Not only the development of particle therap y\, but the application of images guidance during treatment will become in creasingly widespread and in-depth\, creating a need for clinical applicat ion of offline and online adaptive radiotherapy. \nThere are four particle therapy center in operation including three proton center and one heavy i on center in Taiwan. We are expect having eight particle center and sevent een treatment rooms in operation by the end of 2025.\n\nhttps://indico.nsr rc.org.tw/event/16/contributions/215/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/215/ END:VEVENT BEGIN:VEVENT SUMMARY:DIRAMS C-band LINACs for preclinical FLASH electron beam irradiati on DTSTART;VALUE=DATE-TIME:20240417T061000Z DTEND;VALUE=DATE-TIME:20240417T063000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-208@indico.nsrrc.org.tw DESCRIPTION:Speakers: Heuijin Lim (Dongnam Institute of Radiological & Med ical Sciences)\nThe 6-MeV and 9-MeV electron linear accelerators (LINACs) were designed and constructed in 2015 and in 2018 at the Dongnam Institute of Radiological & Medical Sciences (DIRAMS)\, Busan\, Korea. Their C-band accelerating columns were chosen as a bi-periodic on-axis coupled structu re and operated in the π/2 standing-wave mode. They are used for preclini cal irradiators for in vitro studies of cells and small animals\, and the development & test of LINAC components. Preclinical studies have shown tha t irradiation with ultra-high dose-rate beam known as FLASH kills cancer c ells with minimal damage to normal cells. The DIRAMS LINACs provide the co nventional dose rate beam ( 40 Gy/s) by the precise control of the pulse m odulator combined with a single-board computer. For the real-time monitori ng of FLASH beams\, the delivered dose was estimated by the measured charg e by the transmission-type ionization-chamber. In this talk\, we present t he status of DIRAMS LINACs and also the preclinical results.\n\nhttps://in dico.nsrrc.org.tw/event/16/contributions/208/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/208/ END:VEVENT BEGIN:VEVENT SUMMARY:Industrial Applications at NSRRC –Taiwan’s Experiences DTSTART;VALUE=DATE-TIME:20240417T092000Z DTEND;VALUE=DATE-TIME:20240417T094000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-217@indico.nsrrc.org.tw DESCRIPTION:Speakers: Bor-Yuan Shew (NSRRC)\nAs echoing to the national de manding for industry development\, the Industry Application Division (IAD) in the National Synchrotron Radiation Research Center (NSRRC) in Taiwan w as established and launching its mission since 2008. Serving as the acting window in NSRRC\, the IAD bridges the synchrotron-radiation (SR) analytic al tools mainly to key domestic industries with practical and critical res olutions to boosting added-up values for genuine industrial concerns.\n\nA fter years of promotion\, the IAD of NSRRC has cultivated analysis capacit ies for several targeting industrial needs with fruitful results\, includi ng the high-tech semiconductors\, green energy and batteries\, advanced po lymers and carbon fibers\, steels and iron metallurgy\, pharmaceuticals\, and micro-devices as well\, which will be briefed in the presentation.\n\n https://indico.nsrrc.org.tw/event/16/contributions/217/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/217/ END:VEVENT BEGIN:VEVENT SUMMARY:Speeding up proton therapy: progress towards beam delivery using F ixed Field Accelerator technology” DTSTART;VALUE=DATE-TIME:20240417T084000Z DTEND;VALUE=DATE-TIME:20240417T090000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-212@indico.nsrrc.org.tw DESCRIPTION:Speakers: Suzie Sheehy (University of Melbourne)\nAccess to pr oton therapy is limited by both facility cost and existing technological l imitations. The beam delivery system (BDS) has been identified as a bottle neck\, particularly for new and emerging methodologies such as FLASH\, Arc \, and multi-ion therapies. This talk will discuss a new collaborative pro ject between Harvard/MGH\, University of Melbourne and Pyramid technologie s for a compact\, fast proton therapy system. We will focus on the 'TURBO' ‘Technology for Ultra Rapid Beam Operation’ project: a novel proof of principle BDS in development in Melbourne\, utilising novel Fixed Field A lternating Gradient optics. This system will increase the BDS energy accep tance to allow multiple beam energies to be transported\, reducing the dea d time between energy layers and enabling rapid beam delivery across the w hole tumour depth. We discuss the potential and clinical benefits of TURBO as a fixed-beamline BDS with fast energy switching for CPT.\n\nhttps://in dico.nsrrc.org.tw/event/16/contributions/212/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/212/ END:VEVENT BEGIN:VEVENT SUMMARY:The introduction of the proton FLASH experiment beam line in CGMH DTSTART;VALUE=DATE-TIME:20240417T040000Z DTEND;VALUE=DATE-TIME:20240417T042000Z DTSTAMP;VALUE=DATE-TIME:20260907T003646Z UID:indico-contribution-445-211@indico.nsrrc.org.tw DESCRIPTION:Speakers: Jyun-Wei Jheng (Radiation Research Core Laboratory\, Chang Gung Memorial Hospital Linkou Branch)\, I-Chun Cho (Chang Gung Univ ersity)\nJyun-Wei Jheng1\, Shih-Yao\, Chiou1\, Tsz-Yui Chan2\, Sen-Hao Lee 3\, Tsi-Chian Chao1\,2\,3\,4\,5\, I-Chun Cho1\,5\n1 Radiation Research Cor e Laboratory\, Chang Gung Memorial Hospital Linkou Branch\, Taoyuan\, Taiw an.\n2 Department of Medical Imaging and Radiological Sciences\, Chang Gun g University\, Taoyuan\, Taiwan.\n3 Department of Radiation Oncology\, Cha ng Gung Memorial Hospital Linkou Branch\, Taoyuan\, Taiwan.\n4 Department of Radiation Oncology\, New Taipei Municipal Tucheng Hospital\, New Taipei City\, 236\, Taiwan\n5 Medical Physics Research Center\, Institute for Ra diological Research\, Chang Gung University\, Taoyuan\, Taiwan.\n\nE-mail: afsgf65445550@gmail.com\n\nObjective: The aim of this study was to develo p an irradiation system for small-field ( 40 Gy/s)\, presents unique chall enges in ensuring dose accuracy\, maintaining consistent subject positioni ng\, and achieving homogenous dose distribution within the target area.\n\ nMethods: To ensure accurate real-time dose monitoring\, a Transmission Io nization Chamber (TIC) was employed\, meticulously calibrated with a PTW P inpoint Ionization Chamber for precision. To precisely target the designat ed area on the mouse model\, the irradiation field was defined using four secondary brass collimators—two circular\, with diameters of 1 cm and 2 cm\, and two square\, with dimensions of 1 cm and 2 cm—positioned subseq uent to a lead scatter and a primary brass collimator. The beam's energy c onsistency and qualitative integrity were verified through Integrator Dept h Dose (IDD) measurements utilizing a chamber and water tank configuration \, complemented by the application of EBT3 film to evaluate the dose distr ibution at the mouse immobilization site.\n\nResults: The TIC\, crucial fo r the FLASH application\, showed significant stability and accuracy with a dose monitoring uncertainty of less than 3%. The average proton energy wa s measured at 231.7 MeV\, with the R80d depth in water—indicative of the proton dose's penetration—recorded at 315.57 mm.\n\nConclusions: The ir radiation platform developed in this study reliably produces a 1cm x 1cm s quare proton beam for FLASH irradiation experiments\, with dose monitoring effectively managed by a specially designed TIC. This advancement provide s a robust foundation for precise and controlled small-field irradiation r esearch\, with potential implications for the future of radiobiological an d oncological studies.\n\nKeyword\nProton\, FLASH\, irradiation platform\, dosimetry\n\nhttps://indico.nsrrc.org.tw/event/16/contributions/211/ LOCATION: Research Building L100 URL:https://indico.nsrrc.org.tw/event/16/contributions/211/ END:VEVENT END:VCALENDAR