A new generation scanning system for the high-speed analysis of nuclear emulsions

Alexandrov, A.; Buonaura, A.; Consiglio, L.; D’Ambrosio, N.; Lellis, G. De; Crescenzo, A. Di; Galati, G.; Lauria, A.; Montesi, M.C.; Tioukov, V.; Vladymyrov, Mykhailo

doi:10.1088/1748-0221/11/06/p06002

Cited by 47 publications

(30 citation statements)

References 26 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A fast scanning is performed at first with an improved version of the optical microscope used for OPERA films [6]. An R&D program has achieved a speed of about 200 cm 2 /h [7,8]. Given the intrinsic resolution of the optical microscope (∼ 200 nm), the sequence of several grains making a track of a few hundred nanometers may appear as a single cluster.…”

Section: Optical Microscope Read-out Systemmentioning

confidence: 99%

Directional dark matter search with the NEWSdm experiment

Lellis

2019

EPJ Web Conf.

View full text Add to dashboard Cite

The nature of Dark Matter is one of the fundamental questions to be answered. Direct Dark Matter searches are focussed on the development, construction, and operation of detectors looking for the scattering of Weakly Interactive Massive Particles (WIMPs) with target nuclei. The measurement of the direction of WIMP-induced nuclear recoils is a challenging strategy to extend dark matter searches beyond the neutrino floor and provide an unambiguous signature of the detection of Galactic dark matter. Current directional experiments are based on the use of gas TPC whose sensitivity is strongly limited by the small achievable detector mass. NEWSdm is an innovative directional experiment proposal based on the use of a solid target made by newly developed nuclear emulsion films and read-out systems achieving a position accuracy of 10 nm.

show abstract

Section: Optical Microscope Read-out Systemmentioning

confidence: 99%

Directional dark matter search with the NEWSdm experiment

Lellis

2019

EPJ Web Conf.

View full text Add to dashboard Cite

show abstract

“…A 3D reconstruction with nanometric accuracy is currently feasible. Moreover, the R&D for a new scanning system is ongoing to enable the analysis of ton-scale detectors on a time scale comparable with the exposure time [27,28,29]. The challenging task of detecting track lengths shorter than the diffraction limit -∼ 200 nm -is achieved adopting a two-step approach: (i) candidate selection with elliptical shape analysis, (ii) candidate validation with polarised light analysis.…”

Section: Newsdm Detectormentioning

confidence: 99%

Supernova neutrino physics with a nuclear emulsion detector

Lellis

Crescenzo

Rosso

et al. 2018

J. Cosmol. Astropart. Phys.

Self Cite

View full text Add to dashboard Cite

The existence of the coherent neutrino-nucleus scattering reaction requires to evaluate, for any detector devoted to WIMP searches, the irreducible background due to conventional neutrino sources and at same time, it gives a unique chance to reveal supernova neutrinos. We report here a detailed study concerning a new directional detector, based on the nuclear emulsion technology. A Likelihood Ratio test shows that, in the first years of operations and with a detector mass of several tens of tons, the observation of the supernova signal can be achieved. The determination of the distance of the supernova from the neutrinos and the observation of 8 B neutrinos are also discussed.

show abstract

“…Owing to satisfactory data independence and collocation, image processing problem is an ideal task for a parallel processing on GPU. Having positive experience with GPU usage for high speed scanning systems for nuclear emulsions (Ariga and Ariga, 2014;Alexandrov et al, 2016), we decided to exploit GPU computing in the alignment procedure.…”

Section: Real-time Position Correction Using Gpu Computingmentioning

confidence: 99%

Real-time tissue offset correction system for intravital multiphoton microscopy

Vladymyrov

Abe

Moalli

et al. 2016

Journal of Immunological Methods

View full text Add to dashboard Cite

The development of multi-photon intravital microscopy, in particular two-photon microscopy (2PM), has been a breakthrough technique for deep-tissue imaging of dynamic cell behavior inside live organisms and has substantially advanced the field of immunology. However, intravital time-lapse imaging over prolonged time periods is complicated by slow tissue drifts caused by vital activity, leading to shifting fields of views and making the acquired image sequence partially or completely unanalyzable. To solve this issue, we have established a system that performs continuous drift offset correction in real time using fine pattern matching during 2PM acquisition. We incorporated an extensive use of graphical processing unit (GPU) for high-speed computing required for real time correction during data acquisition. This allowed us to perform prolonged acquisitions and increase the proportion of analyzable datasets to nearly 100% in lymphoid and non-lymphoid tissues. Considering the straightforward implementation of our newly developed system, we anticipate that it will be applicable for other users interested in improving the quality of live imaging data acquisition.

show abstract

A new generation scanning system for the high-speed analysis of nuclear emulsions

Cited by 47 publications

References 26 publications

Directional dark matter search with the NEWSdm experiment

Directional dark matter search with the NEWSdm experiment

Supernova neutrino physics with a nuclear emulsion detector

Real-time tissue offset correction system for intravital multiphoton microscopy

Contact Info

Product

Resources

About