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Title: Development of Active Absorbers Using a Matrix of Tungsten Powder and Epoxy for Particle Detection in Nuclear Physics. Final Technical Report SBIR Award No. DE-SC0015185

Abstract

Electromagnetic calorimeters (EMCal) are widely used in high energy and nuclear physics experiments worldwide. The EMCal tower design consists of scintillating fibers embedded in the absorber material, which traditionally consisted of lead. The principal mechanical constraint for the EMCal is that it must be compact, which makes lead, besides its toxicity, not an ideal candidate to meet the physics requirement. Tungsten appears to be a much better choice to build a compact calorimeter due to its high density. Tungsten will not only meet the physics requirements of the EMCal, but will also provide better radiation protection. Tungsten Heavy Powder, Inc. (“THP”) has extensive experience and manufacturing capabilities for a wide variety of Tungsten products. The general purpose of this grant is to develop cost effective technologies for producing active absorber materials consisting of Tungsten powder and epoxy, which in turn will be used with embedded scintillating fibers to build compact calorimeters. This compact calorimeter is a key part of the sPHENIX calorimeter system. THP built prototype EMCal blocks using six (6) different production casting methods. THP also investigated new tooling and new procedures that may lead to efficient industrialized mass production of such absorber blocks.

Authors:
 [1]
  1. Tungsten Heavy Powder, Inc., San Diego, CA (United States)
Publication Date:
Research Org.:
Tungsten Heavy Powder, Inc., San Diego, CA (United States)
Sponsoring Org.:
USDOE Office of Science (Shttps://www.osti.gov/elink/F2413instructC.jsp#abstractC)
OSTI Identifier:
1491479
Report Number(s):
DOE-THP-15185
DOE Contract Number:  
SC0015185
Type / Phase:
SBIR (Phase I)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sery, Joseph. Development of Active Absorbers Using a Matrix of Tungsten Powder and Epoxy for Particle Detection in Nuclear Physics. Final Technical Report SBIR Award No. DE-SC0015185. United States: N. p., 2019. Web. doi:10.2172/1491479.
Sery, Joseph. Development of Active Absorbers Using a Matrix of Tungsten Powder and Epoxy for Particle Detection in Nuclear Physics. Final Technical Report SBIR Award No. DE-SC0015185. United States. doi:10.2172/1491479.
Sery, Joseph. Thu . "Development of Active Absorbers Using a Matrix of Tungsten Powder and Epoxy for Particle Detection in Nuclear Physics. Final Technical Report SBIR Award No. DE-SC0015185". United States. doi:10.2172/1491479. https://www.osti.gov/servlets/purl/1491479.
@article{osti_1491479,
title = {Development of Active Absorbers Using a Matrix of Tungsten Powder and Epoxy for Particle Detection in Nuclear Physics. Final Technical Report SBIR Award No. DE-SC0015185},
author = {Sery, Joseph},
abstractNote = {Electromagnetic calorimeters (EMCal) are widely used in high energy and nuclear physics experiments worldwide. The EMCal tower design consists of scintillating fibers embedded in the absorber material, which traditionally consisted of lead. The principal mechanical constraint for the EMCal is that it must be compact, which makes lead, besides its toxicity, not an ideal candidate to meet the physics requirement. Tungsten appears to be a much better choice to build a compact calorimeter due to its high density. Tungsten will not only meet the physics requirements of the EMCal, but will also provide better radiation protection. Tungsten Heavy Powder, Inc. (“THP”) has extensive experience and manufacturing capabilities for a wide variety of Tungsten products. The general purpose of this grant is to develop cost effective technologies for producing active absorber materials consisting of Tungsten powder and epoxy, which in turn will be used with embedded scintillating fibers to build compact calorimeters. This compact calorimeter is a key part of the sPHENIX calorimeter system. THP built prototype EMCal blocks using six (6) different production casting methods. THP also investigated new tooling and new procedures that may lead to efficient industrialized mass production of such absorber blocks.},
doi = {10.2172/1491479},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}