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Title An optimized prototype of electromagnetic calorimeter for the SoLID project at Jefferson Lab
Authors C. Shen, Y. Wang, D. Xiao, D. Han, Z. Zou, Y. Li, Xiaochao Zheng, Jian-Ping Chen
JLAB number JLAB-PHY-17-2643
LANL number (None)
Other number DOE/OR/23177-4558
Document Type(s) (Meeting) 
Associated with EIC: No
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)
 

Meeting
Paper compiled for CHEF 2017 (International Conference on Calorimetry for the High Energy Frontier)

Journal
Compiled for Journal of Instrumentation
Volume 13
Issue 02
Page(s) C02019
Refereed


Proceedings
Proceedings, International Conference on Calorimetry for the High Energy Frontier (CHEF 2017)
Edited By
IoP (2018) Refereed
Page(s) C02019
Publication Abstract: A shashlik-type electromagnetic calorimeter will be produced in Hall A of Jefferson Laboratory for the Solenoidal Large Intensity Device (SoLID). Wavelength-shifting (WLS) fibers and clear fibers will be used as the light guide part of the calorimeter. The blue light from scintillators is converted into green light by WLS fibers and is carried out to the back of the calorimeters for readout. Since the magnetic field of SoLID reaches about 1.5 T behind the calorimeters, the design is to use clear fibers to further guide the light out of the solenoid for readout by PMTs. Therefore, it is important to study the perfomance of WLS and clear fibers. This paper describes a comparative test of two different WLS fibers and a light attenuation test for a clear fiber. The results show that the performance of the two WLS fibers is the same under large curvature bending, and that the bending has no effect on the light transmission through the clear fiber. In addition, a comparison test for two fiber end-face reflective materials is also reported. It reveals that the use of silver ink as a reflective material can increase the light yield by 30%. Thereby, an optimized prototype based on the above experimental results was built and the basic performance was tested.
Experiment Numbers: other
Group: Hall A
Document: pdf
DOI: https://doi.org/10.1088/1748-0221/13/02/C02019
Accepted Manuscript:
Supporting Documents:
Supporting Datasets: