Development of nuclear emulsions with 1 μm spatial resolution for the AEgIS experiment

Kimura, Mitsuhiro; Aghion, S.; Ahlén, O.; Amsler, Claude; Ariga, Akitaka; Ariga, Tomoko; Belov, A.S.; Bonomi, G.; Bräunig, P.; Bremer, J.; Brusa, R.S.; Burghart, G.; Cabaret, L.; Canali, C.; Caravita, R.; Castelli, F.; Cerchiari, G.; Cialdi, S.; Comparat, D.; Consolati, G.; ... (2013). Development of nuclear emulsions with 1 μm spatial resolution for the AEgIS experiment. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 732(732), pp. 325-329. North-Holland 10.1016/j.nima.2013.04.082

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The main goal of the AEgIS experiment at CERN is to test the weak equivalence principle for antimatter. We will measure the Earth ' s gravitational acceleration g with antihydrogen atoms being launched in a horizontal vacuum tube and traversing a moiré de fl ectometer. We intend to use a position sensitive device made of nuclear emulsions (combined with a time-of- fl ight detector such as silicon μ strips) to measure precisely their annihilation points at the end of the tube. The goal is to determine g with a 1% relative accuracy. In 2012 we tested emulsion fi lms in vacuum and at room temperature with low energy antiprotons from the CERN antiproton decelerator. First results on the expected performance for AEgIS are presented

Item Type:

Conference or Workshop Item (Paper)


08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
10 Strategic Research Centers > Center for Space and Habitability (CSH)

UniBE Contributor:

Kimura, Mitsuhiro, Amsler, Claude, Ariga, Akitaka, Ariga, Tomoko, Ereditato, Antonio, Kawada, Jiro, Pistillo, Ciro, Scampoli, Paola, Storey, James William


500 Science > 530 Physics








Elena Kirillova

Date Deposited:

16 Sep 2014 07:49

Last Modified:

05 Dec 2022 14:32

Publisher DOI:



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