6 Matching Results

Search Results

Advanced search parameters have been applied.

in creator/contributor: "Erickson, R.A."

open access

Final focus systems for linear colliders

The final focus system of a linear collider must perform two primary functions, it must focus the two opposing beams so that their transverse dimensions at the interaction point are small enough to yield acceptable luminosity, and it must steer the beams together to maintain collisions. In addition, the final focus system must transport the outgoing beams to a location where they can be recycled or safely dumped. Elementary optical considerations for linear collider final focus systems are disc… more

Date: November 1, 1987

Creator: Erickson, R.A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Monitoring in future e/sup +/e/sup /minus// colliders

Study groups throughout the world have recently been examining possible parameter choices for a TeV-class linear collider. In all cases, they have concluded that in order to achieve useful luminosity within plausible cost constraints, the opposing beams of electrons and positrons must be focused to extraordinarily small spots and steered into collision with an unprecedented degree of accuracy. Some means of monitoring these beam parameters will be essential in order to guide the focusing and st… more

Date: May 1, 1989

Creator: Erickson, R.A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Single-bunch beams for BC-75

On June 8, 1983, a beam consisting of a single S-band bunch was transported through the linac into the beam switchyard (BSY) and analyzed in the C-line (Beamline 27) at 30 GeV. The C-line toroid 2712 measured an intensity of approximately 2 x 10/sup 9/e/sup -//pulse. The exact intensity was uncertain due to the limited response time of the toroid for fast, single-bunch beams. However, the linear Q intensity monitors (Lin Q) showed the transmission of the beam through the linac between Sectors 2… more

Date: June 1, 1983

Creator: Sodja, J.; Clendenin, J. E.; Erickson, R. A. & Miller, R. H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

The magnetic properties of the SLC intersection region superconducting quadrupole triplets

The measured magnetic field parameters of the quadrupoles which comprise the final triplet lens system for the SLAC Linear Collider intersection region are presented here. The minimum design gradient specifications for these quadrupoles are 1.7T/cm at 4.6K and 1.6T/cm at 4.6K in a 0.6T external solenoidal field. These gradients are about three times larger than those available with the conventional iron/copper quadrupoles now used in the SLC. Superconducting quadrupoles of two lengths have been… more

Date: September 25, 1987

Creator: McInturff, A. D.; Carson, J. A.; Fisk, H. E. & Erickson, R. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

FACET: SLAC’s New User Facility

FACET (Facility for Advanced Accelerator Experimental Tests) is a new User Facility at SLAC National Accelerator Laboratory. The first User Run started in spring 2012 with 20 GeV, 3 nC electron beams. The facility is designed to provide short (20 {micro}m) bunches and small (20 {micro}m wide) spot sizes, producing uniquely high power beams. FACET supports studies from many fields but in particular those of Plasma Wakefield Acceleration and Dielectric Wakefield Acceleration. The creation of driv… more

Date: May 16, 2012

Creator: Clarke, C. I.; Decker, F. -J.; England, R. J.; Erickson, R. A.; Hast, C.; Hogan, M. J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Performance of the PEP-II B-Factory Collider at SLAC

PEP-II is an e{sup +}e{sup -} asymmetric B-Factory Collider located at SLAC operating at the Upsilon 4S resonance (3.1 GeV x 9 GeV). It has reached a luminosity of 9.21 x 10{sup 33}/cm{sup 2}/s and has delivered an integrated luminosity of 710 pb{sup -1} in one day. PEP-II has delivered, over the past six years, an integrated luminosity to the BaBar detector of over 262 fb{sup -1}. PEP-II operates in continuous injection mode for both beams boosting the integrated luminosity. The peak positron … more

Date: March 3, 2006

Creator: Seeman, J.; Browne, M.; Cai, Y.; Colocho, W.; Decker, F. J.; Donald, M. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department