Friday - July 7, 2006

An aerial view of the SSRL SPEAR3 storage ring.

Keeping SPEAR3 Topped Off

by Brad Plummer

Over the course of a workday, synchrotrons—much like people—lose energy. When the current within the SPEAR3 storage ring falls below a certain level, accelerator operators must replenish that energy to keep beamline users happy and experiments running smoothly.

As it happens now, with SPEAR3 still operating at 100 mA, replenishing the current in the storage ring is a process that takes several minutes. Every 8 hours, when the current falls to around 85 mA, a loss of about 15 percent, users are required to shut their beamlines while current is pumped back into the storage ring. Each time these beamlines are closed, powerful x-rays are removed from the mirrors and other optical equipment used to focus and shape the x-ray beam. When the beamlines are reopened, these devices are walloped with the full current intensity, and the strain of going from zero to full power puts stress on these delicate instruments that upsets the precise beam stability needed by the users.  Read more....

ILC NewsLine: Town Hall Meeting at VLCW06

by Elizabeth Clements

Valery Telnov of BINP Novosibirsk and Tsunehiko Omori of KEK (in the background) during the town hall meeting held at Snowmass in 2005.

Do you have a question about the Reference Design Report for the International Linear Collider (ILC)? Or are you wondering about an ILC detector concept? Do you worry about how machine and detectors will work together? Or perhaps you have a question about the proposed timeline for building the ILC? At the Vancouver Linear Collider Workshop 2006, you will have the opportunity to ask your questions about the ILC on Thursday, July 20 at 7:30 p.m.

Organized by the American Linear Collider Physics Group (ALCPG) and the Global Design Effort (GDE), the purpose of this town hall meeting is to establish stronger communication between the accelerator and detector communities for the ILC. A panel comprised of GDE and ALCPG members will answer questions and moderate the discussion.

If you have a question for the panel, please submit it by Wednesday, July 12 to communicators@linearcollider.org. Attendees will also have the opportunity to ask additional questions during the meeting.

All submitted questions will be posted on the VLCW06 website prior to the town hall meeting. A program will be organized around the submitted questions for the first part of the meeting, and the second portion will be dedicated to open discussion. If you submit a question ahead of time, please plan to attend the town hall meeting to pose it directly to the panel. The ALCPG and GDE encourage all workshop participants to attend the town hall meeting and look forward to the evening's discussions.

North Side of Sector 20 Closed Next Monday

The north side of Klystron Gallery Road at Sector 20 will be closed on Monday, July 10, to allow for workers to install heavy equipment for the Linac Coherent Light Source (LCLS). Access should return to normal on Tuesday morning.

Stanford Jazz Festival
in Full Swing

This year's Stanford Jazz Festival program kicked off with a concert by Cyrus Chestnut.

The 2006 Stanford Jazz Festival began June 24 and continues through August 5, featuring more than 100 artists performing more than 30 mainstage concerts. Presented by See's Candies, the annual festival is renowned for offering a healthy dose of straight-ahead jazz, flavored with innovative modern stylings, traditional, blues, salsa, Brazilian, and other cross cultural approaches to improvised music.

Top performances for the 2006 Stanford Jazz Festival will include sets by master saxophonists Jimmy Heath and Phil Woods; acclaimed violinist Regina Carter; talented pianist Cedar Walton in a solo performance and a trio concert; rising saxophone stars Eric Alexander and Chris Potter; and a jazz tribute to Stevie Wonder featuring the Joe Gilman Trio.

Many Stanford Jazz Festival events will feature "Inside Jazz" presentations, a series of free pre-concert talks by prominent jazz artists and educators presented before selected concerts, providing context and insight into the art form. The 2006 Stanford Jazz Festival also features many free events and concerts for families and children. Learn more...

Events (see all | submit)

• July 9: (8:00 a.m.) 13th International Conference on X-ray Absorption Fine Structure (XAFS13)

Access (see all)

• A&E ADA Restroom Renovation
• Demolition of Bldg. 102 A/B, and Bldg. 113

Announcements
(see all | submit)

 Lab Announcements

• Summer T&OD Classes ~ some classes still have space
• Working Advantage - Your Employee Discount Program
• SLAC Summer Institute: Register Now!

Community Bulletin Board

• Employee Transportation Survey

News (see all | submit)

• Nuclear Weapons: The Next Nuke Nature
• Why a Large Hadron Collider? Seed
• Dark Matter Cloud Found Gobbling Nearby Gas New Scientist

• Flea Market
• Linear Café Menu
• Employee Milestones
  
  
• Search the Archives
• Subscribe non-SLAC e-mail
• Send Us Your Feedback

What's Cookin' at the Linear Cafe (see weekly menu)

Friday
Breakfast Boosters	Bacon, Mushroom and Cheese Frittata Served with Hash Brown Potatoes and Sausage	$4.73
Hot	Vegetable Minestrone or New England Clam Chowder	$2.35/$2.95
Taste	Roasted Turkey or Pork Loin with Apple or Mushroom Sauce	$5.65
Good Food For You	Eggplant Parmesan or Chicken Breast Parmesan on a Bed of Pasta with Salad	$5.95
Tossed	Southwestern Chicken Salad, Chicken, Corn and Black Beans with a Cilantro Vinaigrette	$5.45
Panini	Grilled Tuna Steak Sandwich with Spinach, Tomato and Pickled Red Onions	$5.95
Sandwich Favorite	Baja Fish Tacos with Spanish Rice and Beans	$5.85