The SMC polarized target

J. Kyynäräinen

doi:10.1016/0168-9002(94)01442-6

The SMC polarized target

J. Kyynäräinen^*

^*Corresponding author for this work

Not published at VTT

European Organization for Nuclear Research (CERN)

Research output: Contribution to journal › Article › Scientific › peer-review

20 Citations (Scopus)

Abstract

The Spin Muon Collaboration (SMC) at CERN uses the largest solid polarized target in operation to measure the spin-dependent structure functions of the nucleons. The target is made of butanol, doped with EHBA-Cr(V), and has a volume of 2 × 1280 cm³. The target halves are dynamically polarized to opposite directions to minimize many systematic errors, and the spin orientation can be reversed by rotating the magnetic field in the frozen spin mode without losses. Frequency modulation of the microwaves is used to increase the maximum polarization and the growth rate. The polarization is measured with 10 series Q-meters with an accuracy of 3-5%.

Original language	English
Pages (from-to)	47-52
Journal	Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	356
Issue number	1
DOIs	https://doi.org/10.1016/0168-9002(94)01442-6
Publication status	Published - 1 Mar 1995
MoE publication type	A1 Journal article-refereed

Access to Document

10.1016/0168-9002(94)01442-6

Cite this

@article{23b3e0f360fd4b67ae47e39e59d90332,

title = "The SMC polarized target",

abstract = "The Spin Muon Collaboration (SMC) at CERN uses the largest solid polarized target in operation to measure the spin-dependent structure functions of the nucleons. The target is made of butanol, doped with EHBA-Cr(V), and has a volume of 2 × 1280 cm3. The target halves are dynamically polarized to opposite directions to minimize many systematic errors, and the spin orientation can be reversed by rotating the magnetic field in the frozen spin mode without losses. Frequency modulation of the microwaves is used to increase the maximum polarization and the growth rate. The polarization is measured with 10 series Q-meters with an accuracy of 3-5\%.",

author = "J. Kyyn{\"a}r{\"a}inen",

year = "1995",

month = mar,

day = "1",

doi = "10.1016/0168-9002(94)01442-6",

language = "English",

volume = "356",

pages = "47--52",

journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - The SMC polarized target

AU - Kyynäräinen, J.

PY - 1995/3/1

Y1 - 1995/3/1

N2 - The Spin Muon Collaboration (SMC) at CERN uses the largest solid polarized target in operation to measure the spin-dependent structure functions of the nucleons. The target is made of butanol, doped with EHBA-Cr(V), and has a volume of 2 × 1280 cm3. The target halves are dynamically polarized to opposite directions to minimize many systematic errors, and the spin orientation can be reversed by rotating the magnetic field in the frozen spin mode without losses. Frequency modulation of the microwaves is used to increase the maximum polarization and the growth rate. The polarization is measured with 10 series Q-meters with an accuracy of 3-5%.

AB - The Spin Muon Collaboration (SMC) at CERN uses the largest solid polarized target in operation to measure the spin-dependent structure functions of the nucleons. The target is made of butanol, doped with EHBA-Cr(V), and has a volume of 2 × 1280 cm3. The target halves are dynamically polarized to opposite directions to minimize many systematic errors, and the spin orientation can be reversed by rotating the magnetic field in the frozen spin mode without losses. Frequency modulation of the microwaves is used to increase the maximum polarization and the growth rate. The polarization is measured with 10 series Q-meters with an accuracy of 3-5%.

UR - https://www.scopus.com/pages/publications/0002425410

U2 - 10.1016/0168-9002(94)01442-6

DO - 10.1016/0168-9002(94)01442-6

M3 - Article

AN - SCOPUS:0002425410

SN - 0168-9002

VL - 356

SP - 47

EP - 52

JO - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1

ER -

The SMC polarized target

Abstract

Access to Document

Other files and links

Fingerprint

Cite this