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Application of probabilistic modelling for the uncertainty evaluation of alignment measurements of large accelerator magnets assemblies
/ Doytchinov, Iordan Petrov (CERN ; Cranfield U.) ; Tonnellier, Xavier (Cranfield U.) ; Shore, Paul (Teddington, Natl. Phys. Lab ; Cranfield U.) ; Nicquevert, Bertrand (CERN) ; Modena, Michele (CERN) ; Mainaud Durand, Helene (CERN)
Micrometric assembly and alignment requirements for future particle accelerators, and especially large assemblies, create the need for accurate uncertainty budgeting of alignment measurements. Measurements and uncertainties have to be accurately stated and traceable, to international standards, for metre-long sized assemblies, in the range of tens of µm. [...]
2018 - 15 p.
- Published in : Meas. Sci. Technol. 29 (2018) 054001
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Challenges in dosimetry of particle beams with ultra-high pulse dose rates
/ Romano, F (INFN, Catania ; Teddington, Natl. Phys. Lab) ; Subiel, A (Teddington, Natl. Phys. Lab) ; McManus, M (Teddington, Natl. Phys. Lab) ; Lee, N D (Teddington, Natl. Phys. Lab) ; Palmans, H (Teddington, Natl. Phys. Lab ; Unlisted, AT) ; Thomas, R (Teddington, Natl. Phys. Lab) ; McCallum, S (Teddington, Natl. Phys. Lab ; Queen's U., Belfast) ; Milluzzo, G (Queen's U., Belfast) ; Borghesi, M (Queen's U., Belfast) ; McIlvenny, A (Queen's U., Belfast) et al.
Recent results from pre-clinical studies investigating the so-called FLASH effect suggest that the ultrahigh pulse dose rates (UHPDR) of this modality reduces normal tissue damage whilst preserving tumour response, when compared with conventional radiotherapy (RT). FLASH-RT is characterized by average dose rates of dozens of Gy/s instead of only a few Gy/min. [...]
2020 - 5 p.
- Published in : J. Phys.: Conf. Ser. 1662 (2020) 012028
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Form measurement of a 0.1 mm diameter wire with a chromatic confocal sensor, with associated uncertainty evaluation
/ Sanz, Claude (CERN) ; Giusca, Claudiu (Cranfield U.) ; Morantz, Paul (Teddington, Natl. Phys. Lab) ; Marin, Antonio (CERN) ; Chérif, Ahmed (CERN) ; Schneider, Jürgen (Hexagon Metrology, Wetzlar) ; Mainaud-Durand, Hélène (CERN) ; Shore, Paul (Teddington, Natl. Phys. Lab) ; Steffens, Norbert (Hexagon Metrology, Wetzlar)
The accurate characterisation of a copper–beryllium wire with a diameter of 0.1 mm is one of the steps to increase the precision of future accelerators’ pre-alignment. Novelties in measuring the wire properties were found in order to overcome the difficulties brought by its small size. [...]
2018 - 6 p.
- Published in : Meas. Sci. Technol. 29 (2018) 074010
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Spectroscopy of Neutron Induced Reactions with the $\nu $-ball Spectrometer
/ Jovančević, N (Orsay, IPN ; U. Paris-Saclay) ; Lebois, M (Orsay, IPN ; U. Paris-Saclay) ; Wilson, J N (Orsay, IPN ; U. Paris-Saclay) ; Thisse, D (Orsay, IPN ; U. Paris-Saclay) ; Qi, L (Orsay, IPN ; U. Paris-Saclay) ; Matea, I (Orsay, IPN ; U. Paris-Saclay) ; Ibrahim, F (Orsay, IPN ; U. Paris-Saclay) ; Verney, D (Orsay, IPN ; U. Paris-Saclay) ; Babo, M (Orsay, IPN ; U. Paris-Saclay) ; Delafosse, C (Orsay, IPN ; U. Paris-Saclay) et al.
The $\nu$-ball is a high-efficiency hybrid spectrometer which consists of both germanium (Ge) detectors and associated anti-Compton BGO shields, coupled to lanthanum bromide (LaBr$_3$) detectors. The hybrid configuration provides a combination of both excellent energy and timing resolutions. [...]
Acta Physica Polonica B Editorial Office, 2019 - 8 p.
- Published in : Acta Phys. Pol. B 50 (2019) 297
In : Zakopane Conference on Nuclear Physics : Extremes of the Nuclear Landscape, Zakopane, Poland, 26 Aug - 2 Sep 2018, pp.297
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The challenge of ionisation chamber dosimetry in ultra-short pulsed high dose-rate Very High Energy Electron beams
/ McManus, M (Teddington, Natl. Phys. Lab ; U. Coll. London) ; Romano, F (INFN, Catania ; Teddington, Natl. Phys. Lab) ; Lee, N D (Teddington, Natl. Phys. Lab) ; Farabolini, W (CERN ; IRFU, Saclay) ; Gilardi, A (CERN) ; Royle, G (U. Coll. London) ; Palmans, H (Medaustron, Vienna ; Teddington, Natl. Phys. Lab) ; Subiel, A (Teddington, Natl. Phys. Lab)
High dose-rate radiotherapy, known as FLASH, has been shown to increase the differential response between healthy and tumour tissue. Moreover, Very High Energy Electrons (VHEEs) provide more favourable dose distributions than conventional radiotherapy electron and photon beams. [...]
2020 - 11 p.
- Published in : Sci. Rep. 10 (2020) 9089
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Evaluation of the performance variation of porous air pads on discontinuous surfaces
/ Sanz, C (Cranfield U. ; CERN) ; Morantz, P (Cranfield U. ; Teddington, Natl. Phys. Lab) ; Lunt, A J G (Bath U.) ; Shore, P (Cranfield U. ; Teddington, Natl. Phys. Lab) ; Chérif, A (CERN) ; Schneider, J (Unlisted, DE) ; Mainaud-Durand, H (CERN) ; Steffens, N (Unlisted, DE)
A new high accuracy position measurement system has been developed. It measures the position of a 0.1 mm diameter copper-beryllium wire that informs alignment of energy beams in advanced particle accelerators. [...]
2020 - 7 p.
- Published in : Prec. Eng. 62 (2020) 16-22
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