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Use of microparticles as internal targets for nuclear physics with storage rings

Abstract

We report on the development of ultrathin (10/sup 14/ to 10/sup 16/ at/cm/sup 2/) internal targets for storage rings using microparticles. A ''dust beam'' is created by a gas-particle mixture flowing through a capillary into vacuum. In a laminar flow, the viscous drag accelerates the particles in the direction of the gas flow, while the Bernoulli force concentrates them near the axis of the tube. At the exist of the tube the gas diffuses, but the particles, due to their inertia, continue with small divergence. This property will allow us to differentially pump the carrier gas along the dust beam axis before the microparticles enter the high vacuum of the storage ring. (orig.).
Publication Date:
Apr 01, 1989
Product Type:
Conference
Report Number:
CONF-881151-
Reference Number:
NLN-89-003317; EDB-89-137820
Resource Relation:
Journal Name: Nucl. Instrum. Methods Phys. Res., Sect. B; (Netherlands); Journal Volume: 40/41:pt.1; Conference: 10. international conference on the application of accelerators in research and industry, Denton, TX, USA, 7-9 Nov 1988
Subject:
43 PARTICLE ACCELERATORS; STORAGE RINGS; PARTICLES; TARGETS; DRAG; LAMINAR FLOW; SUSPENSIONS; THICKNESS; VISCOUS FLOW; DIMENSIONS; DISPERSIONS; FLUID FLOW; 430303* - Particle Accelerators- Experimental Facilities & Equipment
OSTI ID:
5704841
Research Organizations:
Indiana Univ., Bloomington (USA). Cyclotron Facility
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NIMBE
Submitting Site:
NLN
Size:
Pages: 455-458
Announcement Date:

Citation Formats

Berdoz, A, Heinz, A, Meyer, H O, Pancella, P, Rinckel, T, Ross, A, Sperisen, F, and Young, D. Use of microparticles as internal targets for nuclear physics with storage rings. Netherlands: N. p., 1989. Web.
Berdoz, A, Heinz, A, Meyer, H O, Pancella, P, Rinckel, T, Ross, A, Sperisen, F, & Young, D. Use of microparticles as internal targets for nuclear physics with storage rings. Netherlands.
Berdoz, A, Heinz, A, Meyer, H O, Pancella, P, Rinckel, T, Ross, A, Sperisen, F, and Young, D. 1989. "Use of microparticles as internal targets for nuclear physics with storage rings." Netherlands.
@misc{etde_5704841,
title = {Use of microparticles as internal targets for nuclear physics with storage rings}
author = {Berdoz, A, Heinz, A, Meyer, H O, Pancella, P, Rinckel, T, Ross, A, Sperisen, F, and Young, D}
abstractNote = {We report on the development of ultrathin (10/sup 14/ to 10/sup 16/ at/cm/sup 2/) internal targets for storage rings using microparticles. A ''dust beam'' is created by a gas-particle mixture flowing through a capillary into vacuum. In a laminar flow, the viscous drag accelerates the particles in the direction of the gas flow, while the Bernoulli force concentrates them near the axis of the tube. At the exist of the tube the gas diffuses, but the particles, due to their inertia, continue with small divergence. This property will allow us to differentially pump the carrier gas along the dust beam axis before the microparticles enter the high vacuum of the storage ring. (orig.).}
journal = {Nucl. Instrum. Methods Phys. Res., Sect. B; (Netherlands)}
volume = {40/41:pt.1}
place = {Netherlands}
year = {1989}
month = {Apr}
}