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Title: Status and Performance of New Silicon Stripixel Detector for the PHENIX Experiment at RHIC: Beta Source, Cosmic-rays and Proton Beam at 120 GeV

Abstract

We are constructing a Silicon Vertex Tracker detector (VTX) for the PHENIX experiment at RHIC. Our main motivation is to enable measurements of heavy flavor production (charm and beauty) in p+p, p+d and A+A collisions. Such data will illuminate the properties of the matter created in high-energy heavy-ion collisions. The measurements also will reveal the distribution of gluons in protons from p+p collisions. The VTX detector consists of four layers of barrel detectors and covers |{eta}|<1.2, and almost a 2{pi} in azimuth. The inner two silicon barrels consist of silicon pixel sensors; their technology accords with that of the ALICE1LHCB sensor-readout hybrid. The outer two barrels are silicon stripixel detectors with a new 'spiral' design, and a single-sided sensor with 2-dimensional (X, U) readout. In this paper, we describe the silicon stripixel detector and discuss its performance, including its response to electrons from a beta source ({sup 90}Sr), muons from cosmic-rays, and a 120 GeV proton beam. The results from the proton beam demonstrate that the principle of two-dimensional position sensitivity based on charge sharing works; the signal-to-noise value is 10.4, the position resolution is 33.6 {micro}m for X-stripixel (35.2 {micro}m for U-stripixel), and the tracking efficiencies in the X-more » and U-stripixels are, over 98.9 {+-} 0.2%. The stripixel detector within the VTX project is in the pre-production phase.« less

Authors:
 [1];  [2];  [3];  [2];  [2];  [2];  [2];  [4];  [2]
  1. Brookhaven National Laboratory (BNL)
  2. ORNL
  3. Oak Ridge National Laboratory (ORNL)
  4. University of Tennessee, Knoxville (UTK)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
951296
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 4; Journal ID: ISSN 1748-0221
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BETA SOURCES; DESIGN; DISTRIBUTION; ELECTRONS; GLUONS; MUONS; PERFORMANCE; PRODUCTION; PROTON BEAMS; PROTONS; RESOLUTION; SENSITIVITY; SILICON

Citation Formats

Nouicer, R., Cianciolo, Vince, Enokizono, Akitomo, Awes, Terry C, Read, Jr, Kenneth F, Silvermyr, David O, Stankus, Paul W, Sorensen, Soren P, Young, Glenn R, and PHENIX, Collaboration. Status and Performance of New Silicon Stripixel Detector for the PHENIX Experiment at RHIC: Beta Source, Cosmic-rays and Proton Beam at 120 GeV. United States: N. p., 2009. Web. doi:10.1088/1748-0221/4/04/P04011.
Nouicer, R., Cianciolo, Vince, Enokizono, Akitomo, Awes, Terry C, Read, Jr, Kenneth F, Silvermyr, David O, Stankus, Paul W, Sorensen, Soren P, Young, Glenn R, & PHENIX, Collaboration. Status and Performance of New Silicon Stripixel Detector for the PHENIX Experiment at RHIC: Beta Source, Cosmic-rays and Proton Beam at 120 GeV. United States. https://doi.org/10.1088/1748-0221/4/04/P04011
Nouicer, R., Cianciolo, Vince, Enokizono, Akitomo, Awes, Terry C, Read, Jr, Kenneth F, Silvermyr, David O, Stankus, Paul W, Sorensen, Soren P, Young, Glenn R, and PHENIX, Collaboration. 2009. "Status and Performance of New Silicon Stripixel Detector for the PHENIX Experiment at RHIC: Beta Source, Cosmic-rays and Proton Beam at 120 GeV". United States. https://doi.org/10.1088/1748-0221/4/04/P04011.
@article{osti_951296,
title = {Status and Performance of New Silicon Stripixel Detector for the PHENIX Experiment at RHIC: Beta Source, Cosmic-rays and Proton Beam at 120 GeV},
author = {Nouicer, R. and Cianciolo, Vince and Enokizono, Akitomo and Awes, Terry C and Read, Jr, Kenneth F and Silvermyr, David O and Stankus, Paul W and Sorensen, Soren P and Young, Glenn R and PHENIX, Collaboration},
abstractNote = {We are constructing a Silicon Vertex Tracker detector (VTX) for the PHENIX experiment at RHIC. Our main motivation is to enable measurements of heavy flavor production (charm and beauty) in p+p, p+d and A+A collisions. Such data will illuminate the properties of the matter created in high-energy heavy-ion collisions. The measurements also will reveal the distribution of gluons in protons from p+p collisions. The VTX detector consists of four layers of barrel detectors and covers |{eta}|<1.2, and almost a 2{pi} in azimuth. The inner two silicon barrels consist of silicon pixel sensors; their technology accords with that of the ALICE1LHCB sensor-readout hybrid. The outer two barrels are silicon stripixel detectors with a new 'spiral' design, and a single-sided sensor with 2-dimensional (X, U) readout. In this paper, we describe the silicon stripixel detector and discuss its performance, including its response to electrons from a beta source ({sup 90}Sr), muons from cosmic-rays, and a 120 GeV proton beam. The results from the proton beam demonstrate that the principle of two-dimensional position sensitivity based on charge sharing works; the signal-to-noise value is 10.4, the position resolution is 33.6 {micro}m for X-stripixel (35.2 {micro}m for U-stripixel), and the tracking efficiencies in the X- and U-stripixels are, over 98.9 {+-} 0.2%. The stripixel detector within the VTX project is in the pre-production phase.},
doi = {10.1088/1748-0221/4/04/P04011},
url = {https://www.osti.gov/biblio/951296}, journal = {Journal of Instrumentation},
issn = {1748-0221},
number = ,
volume = 4,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}