[Theory-seminars] Fwd: Physics Colloquium Friday, November 13, 2015 "Development of a Polarized Helium-3 Ion Source for an Electron Ion Collider" - by Dr. James Maxwell

[Mary Fox]

-------- Original Message --------
Subject: 	Physics Colloquium Friday, November 13, 2015 "Development of a 
Polarized Helium-3 Ion Source for an Electron Ion Collider" - by Dr. 
James Maxwell
Date: 	Mon, 9 Nov 2015 21:36:46 +0000
From: 	Wilkinson, Eleonor V <evwilk at wm.edu>
To: 	physics0607 at physics.wm.edu <physics0607 at physics.wm.edu>
CC: 	undergrads0607 at physics.wm.edu <undergrads0607 at physics.wm.edu>



*_PHYSICS COLLOQUIUM_*

Friday, November 13, 2015

4:00 PM

Small Hall, Room 111

*Dr. James Maxwell***[Host: W. Deconinck]**

Massachusetts Institute of Technology

Jefferson Lab**

**

**

**

**

* Title of Talk:*

*/"Development of a Polarized Helium-3 Ion Source for an Electron Ion 
Collider"/*

**

*Abstract:*

Spin polarization of targets and beams has been a crucial tool in 
scattering experiment probes of nuclear structure. While the properties 
of the proton have allowed successful polarized proton targets and 
beams, neutrons are more difficult to manipulate in a particle 
accelerator beam. Fortunately, other materials, such as 3He, offer 
surrogates of the neutron to allow the creation of "effective" neutron 
beams to allow the study of neutron in an accelerator. We are developing 
a beam source of polarized 3He ions for use at the Relativistic Heavy 
Ion Collider (RHIC) at Brookhaven National Lab (BNL), and at the 
proposed Electron Ion Collider. This source combines two existing 
technologies to create polarized ions which can be injected into a 
beamline: the technique of metastability exchange optical pumping (MEOP) 
is a decades old process allowing the polarization of 3He via laser 
pumping at low pressure in a small magnetic field; and the electron beam 
ion source (EBIS) currently in use at BNL can ionize and extract nearly 
any gas for injection into RHIC. A successful polarized 3He beam which 
would become a cornerstone of neutron study at RHIC and at a future 
electron-ion collider facility.*//*

*//*

*/*Cookies & coffee will be served in Room 122 at 3:30 PM/*

******

*Eleonor V. Wilkinson*

Administrative & Office Specialist

The College of William & Mary-Physics
Small Hall, Room 123
300 Ukrop Way
Williamsburg, VA 23185

Telephone: 757-221-3503

Fax: 757-221-3540



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