Julia Saleh-Natur, Ehud Behar, Omer Reich, Shlomit Tarem, Zvika Tarem, Alex Vdovin, Amir Feigenboim, Roi Rahin, Avner Kaidar, Hovhannes Agalarian, Alon Osovizky, Max Ghelman
{"title":"GALI -- A GAmma-ray burst Localizing Instrument: Results from Full Size Engineering Model","authors":"Julia Saleh-Natur, Ehud Behar, Omer Reich, Shlomit Tarem, Zvika Tarem, Alex Vdovin, Amir Feigenboim, Roi Rahin, Avner Kaidar, Hovhannes Agalarian, Alon Osovizky, Max Ghelman","doi":"arxiv-2408.02144","DOIUrl":null,"url":null,"abstract":"We present a full-size engineering model of GALI - The GAmma-ray burst\nLocalizing Instrument, composed of 362 CsI(Tl) small cubic scintillators,\ndistributed within a small volume of $\\sim2$l, and read out by silicon\nphoto-multipliers. GALI can provide directional information about GRBs with\nhigh angular accuracy from angle-dependent mutual obstruction between its\nscintillators. Here, we demonstrate GALI's laboratory experiments with an\n$^{241}$Am source, which achieved directional reconstruction of $<$3$^\\circ$\naccuracy, in agreement with our Monte-Carlo simulations. GALI has a wide field\nview of the unobstructed sky. With its current cubic configuration, GALI's\neffective area varies between 97 cm$^2$ (face on) and 138 cm$^2$ (from the\ncorners at 45$^\\circ$), which is verified in the current experiment.","PeriodicalId":501163,"journal":{"name":"arXiv - PHYS - Instrumentation and Methods for Astrophysics","volume":"63 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Instrumentation and Methods for Astrophysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2408.02144","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We present a full-size engineering model of GALI - The GAmma-ray burst
Localizing Instrument, composed of 362 CsI(Tl) small cubic scintillators,
distributed within a small volume of $\sim2$l, and read out by silicon
photo-multipliers. GALI can provide directional information about GRBs with
high angular accuracy from angle-dependent mutual obstruction between its
scintillators. Here, we demonstrate GALI's laboratory experiments with an
$^{241}$Am source, which achieved directional reconstruction of $<$3$^\circ$
accuracy, in agreement with our Monte-Carlo simulations. GALI has a wide field
view of the unobstructed sky. With its current cubic configuration, GALI's
effective area varies between 97 cm$^2$ (face on) and 138 cm$^2$ (from the
corners at 45$^\circ$), which is verified in the current experiment.
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