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Title: First e⁻/γ Commissioning Results for the GlueX Experiment/Hall D at CEBAF

Abstract

Experimental Hall D, with flagship experiment GlueX, was constructed as part of the 12 GeV CEBAF upgrade. A new magnetically extracted electron beam line was installed to support this hall. Bremsstrahlung photons from retractable radiators are delivered to the experiment through a series of collimators following a long drift to allow for beam convergence. Coherent Bremsstrahlung generated by interaction with a diamond radiator will achieve a nominal 40% linear polarization and photon energies between 8.5 and 9 GeV from 12.1 GeV electrons, which are then tagged or diverted to a medium power 60kW electron dump. The expected photon flux is 107-108 Hz. This paper discusses the experimental line design, commissioning experience gained since first beam in spring 2014, and the present results of beam commissioning by the experiment.

Authors:
 [1];  [1];  [1];  [1]
  1. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1223478
Report Number(s):
JLAB-ACC-15-2026; DOE/OR/23177-3540
TRN: US1601444
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Conference
Resource Relation:
Conference: IPAC 2015, Richmond, VA (United States), 3-8 May 2015
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ELECTRON BEAMS; ELECTRONS; PHOTONS; GEV RANGE 01-10; BREMSSTRAHLUNG; COMMISSIONING; DIAMONDS; COLLIMATORS; DESIGN; SPIN ORIENTATION; CEBAF ACCELERATOR; ACCELERATOR FACILITIES; BEAM TRANSPORT

Citation Formats

McCaughan, Michael D., Satogata, Todd J., Roblin, Yves R., and Benesch, Jay F. First e⁻/γ Commissioning Results for the GlueX Experiment/Hall D at CEBAF. United States: N. p., 2015. Web.
McCaughan, Michael D., Satogata, Todd J., Roblin, Yves R., & Benesch, Jay F. First e⁻/γ Commissioning Results for the GlueX Experiment/Hall D at CEBAF. United States.
McCaughan, Michael D., Satogata, Todd J., Roblin, Yves R., and Benesch, Jay F. 2015. "First e⁻/γ Commissioning Results for the GlueX Experiment/Hall D at CEBAF". United States. https://www.osti.gov/servlets/purl/1223478.
@article{osti_1223478,
title = {First e⁻/γ Commissioning Results for the GlueX Experiment/Hall D at CEBAF},
author = {McCaughan, Michael D. and Satogata, Todd J. and Roblin, Yves R. and Benesch, Jay F.},
abstractNote = {Experimental Hall D, with flagship experiment GlueX, was constructed as part of the 12 GeV CEBAF upgrade. A new magnetically extracted electron beam line was installed to support this hall. Bremsstrahlung photons from retractable radiators are delivered to the experiment through a series of collimators following a long drift to allow for beam convergence. Coherent Bremsstrahlung generated by interaction with a diamond radiator will achieve a nominal 40% linear polarization and photon energies between 8.5 and 9 GeV from 12.1 GeV electrons, which are then tagged or diverted to a medium power 60kW electron dump. The expected photon flux is 107-108 Hz. This paper discusses the experimental line design, commissioning experience gained since first beam in spring 2014, and the present results of beam commissioning by the experiment.},
doi = {},
url = {https://www.osti.gov/biblio/1223478}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 2015},
month = {Tue Sep 01 00:00:00 EDT 2015}
}

Conference:
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