Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session Y14: Detector R&D III
1:30 PM–3:18 PM,
Tuesday, April 16, 2019
Sheraton
Room: Plaza Court 3
Sponsoring
Unit:
DPF
Chair: Young-Kee Kim
Abstract: Y14.00002 : Wavelength Shifting Liquid-Filled Capillaries for Compact Optical Electromagnetic Calorimetry Applications*
1:42 PM–1:54 PM
View Presentation Abstract
Presenter:
Randal C Ruchti
(University of Notre Dame, National Science Foundation)
Authors:
Randal C Ruchti
(University of Notre Dame, National Science Foundation)
Mark Vigneault
(University of Notre Dame)
Daniel Smith
(University of Notre Dame)
John Taylor
(University of Notre Dame)
Kiva Ford
(University of Notre Dame)
Wavelength Shifting (WLS) Capillaries are being developed for optical calorimetry applications, and particularly for sampling calorimetry configurations. The WLS dyes can be tailored appropriately to provide wave shifting for various scintillation materials. Fabricated from radiation hard quartz, the capillaries are capable of withstanding high radiation doses and could be used broadly for EM applications in fixed target and colliding beam experiments.
Our initial focus has been on the optical readout of Shashlik-style modules consisting of alternating layers of dense absorber plates, interspersed with crystal scintillation plates of identical cross sectional area. Such materials afford a dense, compact design, with small Moliere Radius, short physical length and substantial depth in radiation lengths sufficient to contain EM showers. Scintillation light from the crystal tiles is wave shifted in the liquid core of the thick-wall capillaries which penetrate through the Shashlik structure and is then transmitted to photosensors such as SiPM located at their ends. Details of the quartz capillary manufacture, optical characteristics and efficiency and radiation hardness will be presented.
*US National Science Foundation US Department of Energy Grant DE-SC0017810
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