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Title: Precision timing calorimeter for high energy physics

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1413391
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 824; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-12-14 19:17:30; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Anderson, Dustin, Apresyan, Artur, Bornheim, Adolf, Duarte, Javier, Peña, Cristián, Spiropulu, Maria, Trevor, Jason, Xie, Si, and Ronzhin, Anatoly. Precision timing calorimeter for high energy physics. Netherlands: N. p., 2016. Web. doi:10.1016/j.nima.2015.11.129.
Anderson, Dustin, Apresyan, Artur, Bornheim, Adolf, Duarte, Javier, Peña, Cristián, Spiropulu, Maria, Trevor, Jason, Xie, Si, & Ronzhin, Anatoly. Precision timing calorimeter for high energy physics. Netherlands. doi:10.1016/j.nima.2015.11.129.
Anderson, Dustin, Apresyan, Artur, Bornheim, Adolf, Duarte, Javier, Peña, Cristián, Spiropulu, Maria, Trevor, Jason, Xie, Si, and Ronzhin, Anatoly. 2016. "Precision timing calorimeter for high energy physics". Netherlands. doi:10.1016/j.nima.2015.11.129.
@article{osti_1413391,
title = {Precision timing calorimeter for high energy physics},
author = {Anderson, Dustin and Apresyan, Artur and Bornheim, Adolf and Duarte, Javier and Peña, Cristián and Spiropulu, Maria and Trevor, Jason and Xie, Si and Ronzhin, Anatoly},
abstractNote = {},
doi = {10.1016/j.nima.2015.11.129},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 824,
place = {Netherlands},
year = 2016,
month = 7
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.nima.2015.11.129

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  • Here, we present studies on the performance and characterization of the time resolution of LYSO-based calorimeters. Results for an LYSO sampling calorimeter and an LYSO-tungsten Shashlik calorimeter are presented. We also demonstrate that a time resolution of 30 ps is achievable for the LYSO sampling calorimeter. Timing calorimetry is described as a tool for mitigating the effects due to the large number of simultaneous interactions in the high luminosity environment foreseen for the Large Hadron Collider.
  • Particle colliders operating at high luminosities present challenging environments for high energy physics event reconstruction and analysis. We discuss how timing information, with a precision on the order of 10 ps, can aid in the reconstruction of physics events under such conditions. We present calorimeter based timing measurements from test beam experiments in which we explore the ultimate timing precision achievable for high energy photons or electrons of 10 GeV and above. Using a prototype calorimeter consisting of a 1.7×1.7×1.7 cm 3 lutetium–yttrium oxyortho-silicate (LYSO) crystal cube, read out by micro-channel plate photomultipliers, we demonstrate a time resolution of 33.5±2.1more » ps for an incoming beam energy of 32 GeV. In a second measurement, using a 2.5×2.5×20 cm 3 LYSO crystal placed perpendicularly to the electron beam, we achieve a time resolution of 59±11 ps using a beam energy of 4 GeV. We also present timing measurements made using a shashlik-style calorimeter cell made of LYSO and tungsten plates, and demonstrate that the apparatus achieves a time resolution of 54±5 ps for an incoming beam energy of 32 GeV.« less
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  • Scintillating crystals in future high energy physics experiments face a new challenge to maintain its performance in a hostile radiation environment. This paper discusses the effects of radiation damage in scintillating crystals. The importance of maintaining crystal{close_quote}s light response uniformity and the feasibility to build a precision crystal calorimeter under radiation are elaborated. The mechanism of radiation damage in scintillating crystals is also discussed. While the damage in alkali halides is found to be caused by the oxygen/hydroxyl contamination, it is the structure defects, such as oxygen vacancies, cause damage in oxides. Material analysis used to reach these conclusions aremore » presented in details. {copyright} {ital 1998 American Institute of Physics.}« less