TITLE

Electron scattering experiments with polarized hydrogen/deuterium internal targets

AUTHOR(S)
van Buuren, L. D.
PUB. DATE
June 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 512 Issue 1, p356
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A high-density polarized hydrogen/deuterium internal gas target is presented. The target is based on a setup previously used in electron scattering experiments with tensor-polarized deuterium [1]. To increase the target thickness, new state-of-the-art permanent sextupole magnets and a more powerful pumping system were installed together with a longer (60 cm) and colder (∼70 K) cylindrical storage cell. Electro-nuclear spin observables were measured by scattering longitudinally polarized electrons stored in the AmPS ring (NIKHEF) from the target gas. The product of electron beam and target polarization was determined from the known e[sup ′]p (quasi) elastic asymmetries. We achieved a target thickness of 1.1×10[sup 14] atoms/cm[sup 2] which with typical beam currents of 110 mA corresponds to a luminosity of about 7.5×10[sup 31] cm[sup -2] s[sup -1]. Target and beam polarizations up to 0.7 and 0.65 respectively were obtained. © 2000 American Institute of Physics.
ACCESSION #
6028167

 

Related Articles

  • Recent results from the internal polarized deuterium target experiment at the electron storage ring VEPP-3. Rachek, I. A.; Arenhoevel, H.; Barkov, L. M.; Dmitriev, V. F.; Dyug, M. V.; Belostotsky, S. L.; Gilman, R.; Holt, R. J.; Isaeva, L. G.; de Jager, C. W.; Kinney, E. R.; Kowalczyk, R. S.; Lazarenko, B. A.; Loginov, A. Yu.; Mishnev, S. I.; Nelyubin, V. V.; Nikolenko, D. M.; Osipov, A. V.; Potterveld, D. H.; Shestakov, Yu. V. // AIP Conference Proceedings;2000, Vol. 512 Issue 1, p362 

    © 2000 American Institute of Physics.

  • A Precision Lamb-shift Polarimeter for the Polarized Gas Target at ANKE/COSY. Engels, R.; Emmerich, R.; Ley, J.; Mikirtytchiants, M.; gen. Schieck, H. Paetz; Rathman, F.; Seyfarth, H.; Vassiliev, A. // AIP Conference Proceedings;2003, Vol. 675 Issue 1, p897 

    The Lamb-shift polarimeter [1], described here, allows the polarization measurement of a beam of hydrogen (deuterium) atoms, or of a slow proton (deuteron) beam (500 – 2000 eV) with an absolute precision better than 1% within a few s. For a hydrogen beam of 3 · 1016 atoms/s, 3 · 106...

  • Polarization Effects in Inelastic Deuteron Scattering in the Region of Baryon-Resonance Excitation. Ladygin, V. P.; Ladygina, N. B. // Physics of Atomic Nuclei;Jan2002, Vol. 65 Issue 1, p182 

    Within the impulse approximation, polarization effects in inelastic deuteron scattering on nuclei are investigated in the region around the resonance of mass about 2190 MeV/c². It is shown that the spin-dependent part of the NN → NN[sup *] (2190) amplitude plays a significant role at...

  • Polarized nuclei in plastic scintillators: a new class of polarized targets. van den Brandt, B.; Bunyatova, E. I.; Hautle, P.; Konter, J. A.; Mango, S.; Nemchonok, I. B. // AIP Conference Proceedings;2001, Vol. 570 Issue 1, p866 

    Polarized scintillating targets are now routinely available: protons, deuterons or other nuclei in blocks of scintillating organic polymer, doped with the free radical TEMPO, are polarized dynamically in a field of 2.5 T in a vertical ³He-&sup4;He dilution refrigerator. A 19 mm diameter...

  • Beam induced depolarizing resonances in the HERMES hydrogen/deuterium target. Reggiani, D. // AIP Conference Proceedings;2003, Vol. 675 Issue 1, p944 

    Nuclear polarized hydrogen and deuterium gas targets employed in high-energy storage rings have become an important tool in the study of spin dependent processes in nuclear and particle physics. A severe problem in the use of this type of targets in bunched beams is the nucleon depolarization...

  • D- Charge Exchange Ionizer for the JINR Polarized Ion Source POLARIS. Ershov, V.P.; Fimushkin, V.V.; Gai, G.I.; Kutuzova, L.V.; Pilipenko, Yu. K.; Vadeev, V.P.; Valevich, A.I.; Belov, A.S. // AIP Conference Proceedings;2003, Vol. 675 Issue 1, p892 

    The spin physics program is an important part of the LHE JINR scientific program. An intensive study of polarization phenomena was carried out at the Dubna 4.5 Gev/nucl. synchrophasotron, using cryogenic source of polarized deuterons (↑D+) POLARIS. There is a proposal to make a polarized...

  • Brute Force with a Gentle Touch: Vibration Isolation Techniques Used to Increase HD Target Polarization. Bade, Christopher M.; Caracappa, Anthony; Kageya, Tsuneo; Lincoln, Frank C.; Lowry, Michael M.; Mahon, John C.; Miceli, Lino; Sandorfi, Andrew M.; Thorn, Craig E.; Xiangdong Wei; Whisnant, C. Steven // AIP Conference Proceedings;2003, Vol. 675 Issue 1, p862 

    The performance of statically polarized high-field/low-temperature targets is a strong function of the base temperature during polarization. At the Laser-Electron Gamma Source (LEGS) facility, highly polarized Hydrogen Deuteride targets are created in a dilution refrigerator/15 tesla...

  • Incident energy dependence of the polarization observables in deuteron elastic scattering at E[sub d]=50∼700 MeV. Iseri, Yasunori; Tanifuji, Makoto // AIP Conference Proceedings;2001, Vol. 570 Issue 1, p887 

    In ³He(d,p)[sup 4]He reactions, contributions of P waves and 1/2[sup +] states to the 430keV resonance are investigated by the invariant amplitude method.

  • Polarized structure functions of the deuteron. Kumano, S. // AIP Conference Proceedings;2001, Vol. 570 Issue 1, p397 

    Physics of spin-1 hadron is an unexplored topic in the high-energy region although spin-1/2 physics has been well investigated in the last decade. It is important to test our knowledge of hadron spin structure in a quite different field of spin physics. We discuss tensor structure functions,...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics