A New Photographic Emulsion for the Detection of Fast Charged Particles

Powell, C. F.; Occhialini, G.; Livesey, D. L.; Chilton, L V

doi:10.1088/0950-7671/23/5/304

Cited by 64 publications

(7 citation statements)

References 5 publications

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“…The nuclear emulsion technique came to life in the years 1946–1947 with the Nobel Prize discovery of the short-lived π meson ( pion ) in an exposure at high altitude to particles generated in cosmic-ray interactions in the atmosphere 63,64 . A true re-birth nuclear emulsion technique occurred in 1990 by the with the development of emulsion analysis by automated microscopes 65,66 that opened the way to large scale applications.…”

Section: Methodsmentioning

confidence: 99%

First muography of Stromboli volcano

Tioukov

Alexandrov

Bozza

et al. 2019

Sci Rep

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Muography consists in observing the differential absorption of muons – elementary particles produced through cosmic-ray interactions in the Earth atmosphere – going through the volcano and can attain a spatial resolution of tens of meters. We present here the first experiment of nuclear emulsion muography at the Stromboli volcano. Muons have been recorded during a period of five months by a detector of 0.96 m 2 area. The emulsion films were prepared at the Gran Sasso underground laboratory and were analyzed at Napoli, Salerno and Tokyo scanning laboratories. Our results highlight a significant low-density zone at the summit of the volcano with density contrast of 30–40% with respect to bedrock. The structural setting of this part of the volcanic edifice controls the eruptive dynamics and the stability of the “Sciara del Fuoco” slope, which is affected by recurrent tsunamigenic landslides. Periodical imaging of the summit of the Stromboli volcano such as that provided by muography can become a useful method for studying the evolution of the internal structure of the volcanic edifice.

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Section: Methodsmentioning

confidence: 99%

First muography of Stromboli volcano

Tioukov

Alexandrov

Bozza

et al. 2019

Sci Rep

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“…The emulsion technique greatly improved during the 1930s and 1940s thanks to the group of Bristol University led by Powell. He developed electron-sensitive nuclear emulsions produced by ILFORD and KODAK [8]. Powell and his group had further developed and greatly extended the seminal work of Marietta Blau.…”

Section: Early Times Of the Technique And The Emulsion Cloud Chambermentioning

confidence: 99%

Nuclear Emulsions

Ariga¹,

Ariga²,

Lellis³

et al. 2020

Particle Physics Reference Library

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“…Emulsions have a long history. The first use of the detector dates to the pioneering work of Kinoshita [4] and later on by Powell et al [5] who got important results in the 1950's by profiting from the continuous progress in the production of gel with improved quality. The discovery of the pion in 1947 constituted an outstanding success of the technique [6].…”

Section: A Brief Historymentioning

confidence: 99%

The Study of Neutrino Oscillations with Emulsion Detectors

Ereditato

2013

Advances in High Energy Physics

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Particle detectors based on nuclear emulsions contributed to the history of physics with fundamental discoveries. The experiments benefited from the unsurpassed spatial and angular resolution of the devices in the measurement of ionizing particle tracks and in their identification. Despite the decline of the technique around the 1970’s caused by the development of the modern electronic particle detectors, emulsions are still alive today thanks to the vigorous rebirth of the technique that took place around the beginning of the 1990’s, in particular due to the needs of neutrino experiments. This progress involved both the emulsion detectors themselves and the automatic microscopes needed for their optical scanning. Nuclear emulsions have marked the study of neutrino physics, notably in relation to neutrino oscillation experiments and to the related first detection of tau-neutrinos. Relevant applications in this field are reviewed here with a focus on the main projects. An outlook is also given trying to address the main directions of the R&D effort currently in progress and the challenging applications to various fields.

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A New Photographic Emulsion for the Detection of Fast Charged Particles

Cited by 64 publications

References 5 publications

First muography of Stromboli volcano

First muography of Stromboli volcano

Nuclear Emulsions

The Study of Neutrino Oscillations with Emulsion Detectors

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