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Title: Energy Calibration of the JLab Bremsstrahlung Tagging System

Abstract

In this report, we present the energy calibration of the Hall B bremsstrahlung tagging system at the Thomas Jefferson National Accelerator Facility. The calibration was performed using a magnetic pair spectrometer. The tagged photon energy spectrum was measured in coincidence with e{sup +}e{sup -} pairs as a function of the pair spectrometer magnetic field. Taking advantage of the internal linearity of the pair spectrometer, the energy of the tagging system was calibrated at the level of {+-} 0.1% E{sub {gamma}}. The absolute energy scale was determined using the e{sup +}e{sup -} rate measurements close to the end-point of the photon spectrum. The energy variations across the full tagging range were found to be <3 MeV.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
890520
Report Number(s):
JLAB-PHY-06-535; DOE/ER/40150-4009
TRN: US0604598
DOE Contract Number:
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nucl.Instrum.Meth.A; Journal Volume: 572; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BREMSSTRAHLUNG; CALIBRATION; CEBAF ACCELERATOR; MAGNETIC FIELDS; PAIR SPECTROMETERS; PHOTONS

Citation Formats

Stepan Stepanyan, S. Boyarinov, H. Egiyan, D. Dale, L. Guo, M. Gabrielyan, L. Gan, Ashot Gasparian, Bernhard Mecking, A. Teymurazyan, I. Nakagawa, Oleksandr Glamazdin, and Michael Wood. Energy Calibration of the JLab Bremsstrahlung Tagging System. United States: N. p., 2007. Web. doi:10.1016/j.nima.2006.12.009.
Stepan Stepanyan, S. Boyarinov, H. Egiyan, D. Dale, L. Guo, M. Gabrielyan, L. Gan, Ashot Gasparian, Bernhard Mecking, A. Teymurazyan, I. Nakagawa, Oleksandr Glamazdin, & Michael Wood. Energy Calibration of the JLab Bremsstrahlung Tagging System. United States. doi:10.1016/j.nima.2006.12.009.
Stepan Stepanyan, S. Boyarinov, H. Egiyan, D. Dale, L. Guo, M. Gabrielyan, L. Gan, Ashot Gasparian, Bernhard Mecking, A. Teymurazyan, I. Nakagawa, Oleksandr Glamazdin, and Michael Wood. Thu . "Energy Calibration of the JLab Bremsstrahlung Tagging System". United States. doi:10.1016/j.nima.2006.12.009. https://www.osti.gov/servlets/purl/890520.
@article{osti_890520,
title = {Energy Calibration of the JLab Bremsstrahlung Tagging System},
author = {Stepan Stepanyan and S. Boyarinov and H. Egiyan and D. Dale and L. Guo and M. Gabrielyan and L. Gan and Ashot Gasparian and Bernhard Mecking and A. Teymurazyan and I. Nakagawa and Oleksandr Glamazdin and Michael Wood},
abstractNote = {In this report, we present the energy calibration of the Hall B bremsstrahlung tagging system at the Thomas Jefferson National Accelerator Facility. The calibration was performed using a magnetic pair spectrometer. The tagged photon energy spectrum was measured in coincidence with e{sup +}e{sup -} pairs as a function of the pair spectrometer magnetic field. Taking advantage of the internal linearity of the pair spectrometer, the energy of the tagging system was calibrated at the level of {+-} 0.1% E{sub {gamma}}. The absolute energy scale was determined using the e{sup +}e{sup -} rate measurements close to the end-point of the photon spectrum. The energy variations across the full tagging range were found to be <3 MeV.},
doi = {10.1016/j.nima.2006.12.009},
journal = {Nucl.Instrum.Meth.A},
number = 2,
volume = 572,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}