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Search for Darkonium in $e^+e^-$ Collisions
/ BABAR Collaboration
Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dark sector structures unexplored. In particular, the existence of dark matter bound states (darkonia) remains to be investigated. [...]
arXiv:2106.08529; BABAR-PUB-21/002; SLAC-PUB-17608.-
2022-01-11 - 10 p.
- Published in : Phys. Rev. Lett. 128 (2022) 021802
Fulltext: PDF;
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A High-Resolution PET Demonstrator using a Silicon “Magnifying Glass”
/ Clinthorne, Neal ; Cochran, Eric ; Chesi, Enrico (CERN) ; Grkovski, Milan ; Grošičar, Borut ; Honscheid, Klaus ; Huh, Sam S ; Kagan, Harris ; Lacasta, Carlos ; Brzezinski, Karol et al.
To assist ongoing investigations of the limits of the tradeoff between spatial resolution and noise in PET imaging, several PET instruments based on silicon-pad detectors have been developed. The latest is a segment of a dual-ring device to demonstrate that excellent reconstructed image resolution can be achieved with a scanner that uses highresolution detectors placed close to the object of interest or surrounding a small field-of-view in combination with detectors having modest resolution at larger radius. [...]
2012 - 9 p.
- Published in : Phys. Procedia 37 (2012) 1488-1496
Elsevier Open Access article: PDF;
In : 2nd International Conference on Technology and Instrumentation in Particle Physics, Chicago, IL, USA, 9 - 14 Jun 2011, pp.1488-1496
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Silicon as an unconventional detector in positron emission tomography
/ Clinthorne, Neal (Michigan U.) ; Brzezinski, Karol (Valencia U., IFIC) ; Chesi, Enrico (CERN) ; Cochran, Eric (Ohio State U.) ; Grkovski, Milan (Stefan Inst., Ljubljana) ; Grosicar, Borut (Stefan Inst., Ljubljana) ; Honscheid, Klaus (Ohio State U.) ; Huh, Sam (Michigan U.) ; Kagan, Harris (Ohio State U.) ; Lacasta, Carlos (Valencia U., IFIC) et al.
Positron emission tomography (PET) is a widely used technique in medical imaging and in studying small animal models of human disease. In the conventional approach, the 511keV annihilation photons emitted from a patient or small animal are detected by a ring of scintillators such as LYSO read out by arrays of photodetectors. [...]
2013 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 699 (2013) 216-220
In : The 8th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Taipei, Taiwan, 5 - 8 Dec 2011, pp.216-220
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Construction and tests of demonstrator modules for a 3-D axial PET system for brain or small animal imaging
/ Chesi, E (Ohio State U.) ; Nappi, E (INFN, Bari) ; Clinthorne, N (Michigan U.) ; Pauss, P (Zurich, ETH) ; Meddi, F (Rome U.) ; Beltrame, P (CERN) ; Kagan, H (Ohio State U.) ; Braem, A (CERN) ; Casella, C (Zurich, ETH) ; Djambazov, G (Zurich, ETH) et al.
The design and construction of a PET camera module with high sensitivity, full 3-D spatial reconstruction and very good energy resolution is presented. The basic principle consists of an axial arrangement of long scintillation crystals around the Field Of View (FOV), providing a measurement of the transverse coordinates of the interacting 511 keV gamma ray. [...]
2011
- Published in : Nucl. Instrum. Methods Phys. Res., A 636 (2011) S226-S230
In : 7th International Symposium on the Development and Application of Semiconductor Tracking Detectors, Hiroshima, Japan, 29 Aug - 01 Sep 2009, pp.S226-S230
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The AX-PET project : Demonstration of a high resolution axial 3D PET
/ Bolle, E (Oslo U.) ; Braem, A (CERN) ; Casella, C (Zurich, ETH) ; Chesi, E (Ohio State U.) ; Clinthorne, N (Michigan U.) ; Cochran, E (Ohio State U.) ; De Leo, R (INFN, Bari) ; Dissertori, G (Zurich, ETH) ; Djambazov, G (Zurich, ETH) ; Fanti, V (CERN) et al.
The AX-PET is a new geometrical concept for a high resolution 3D PET scanner, based on matrices of axially oriented LYSO crystals interleaved by stacks of WLS, both individually read out by G-APDs. A PET demonstrator, based on two detector modules used in coincidence, is currently under construction..
2010
- Published in : Nucl. Instrum. Methods Phys. Res., A 623 (2010) 214-216
In : 11th Pisa Meeting on Advanced Detectors on Frontier Detectors For Frontier Physics, La Biodola, Italy, 24 - 30 May 2009, pp.214-216
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A device to measure the effects of strong magnetic fields on the image resolution of PET scanners
/ Burdette, D (Ohio State U.) ; Albani, D (Ohio State U.) ; Chesi, E (CERN) ; Clinthorne, N H (Michigan U.) ; Cochran, E (Ohio State U.) ; Honscheid, K (Ohio State U.) ; Huh, S S (Michigan U.) ; Kagan, H (Ohio State U.) ; Knopp, M (Ohio State U.) ; Lacasta, C (Valencia U., IFIC) et al.
Very high resolution images can be achieved in small animal PET systems utilizing solid state silicon pad detectors. As these systems approach sub-millimeter resolutions, the range of the positron is becoming the dominant contribution to image blur. [...]
2009
- Published in : Nucl. Instrum. Methods Phys. Res., A 609 (2009) 263-271
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AX-PET : A novel PET detector concept with full 3D reconstruction
/ Braem, A (CERN) ; Joram, C (CERN) ; Séguinot, J (CERN) ; Dissertori, G (Zurich, ETH) ; Djambazov, L (Zurich, ETH) ; Lustermann, W (Zurich, ETH) ; Nessi-Tedaldi, F (Zurich, ETH) ; Pauss, F (Zurich, ETH) ; Schinzel, D (Zurich, ETH) ; Solevi, P (Zurich, ETH) et al.
We describe the concept and first experimental tests of a novel 3D axial Positron Emission Tomography (PET) geometry. It allows for a new way of measuring the interaction point in the detector with very high precision. [...]
2009
- Published in : Nucl. Instrum. Methods Phys. Res., A 610 (2009) 192-195
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10.
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Development of a High Precision Axial 3-D PET for Brain Imaging
/ Bolle, E (Oslo U.) ; Braem, A (CERN) ; Casella, C (Zurich, ETH) ; Chesi, E (Ohio State U.) ; Clinthorne, N (Michigan U.) ; Cochran, E (Ohio State U.) ; De Leo, R (INFN, Bari) ; Dissertori, G (Zurich, ETH) ; Djambazov, L (Zurich, ETH) ; Honscheid, K (Ohio State U.) et al.
We describe a PET device based on a novel method to extract the coordinates of the interaction point of the 511 keV γ rays from 100 mm long and thin LYSO (Lutetium Yttrium OxyorthoSilicate) scintillator bars, positioned axially in the tomograph. The coordinate along the hit crystal is measured by using a hodoscope of Wave Length Shifting (WLS) plastic strips mounted perpendicularly to each plane of scintillators. [...]
2009
- Published in : Nucl. Phys. B, Proc. Suppl. 197 (2009) 19-23
In : 11th Topical Seminar on Innovative Particle and Radiation Detectors, Sienna, Italy, 01 Oct - 04 Oct 2008, pp.19-23
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