A Mono-Energetic Gamma-Ray (MEGa-Ray) Compton scattering light source is being developed at LLNL in collaboration with SLAC National Accelerator Laboratory. The electron beam for the Compton scattering interaction will be generated by a X-band RF gun and a X-band LINAC at the frequency of 11.424 GHz. High power RF in excess of 500 MW is needed to accelerate the electrons to energy of 250 MeV or greater for the interaction. Two high power klystron amplifiers, each capable of generating 50 MW, 1.5 msec pulses, will be the main high power RF sources for the system. These klystrons will be powered by state of the art solid-state high voltage modulators. A RF pulse compressor, similar to the SLED II pulse compressor, will compress the klystron output pulse with a power gain factor of five. For compactness consideration, we are looking at a folded waveguide setup. This will give us 500 MW at output of the compressor. The compressed pulse will then be distributed to the RF gun and to six traveling wave accelerator sections. Phase and amplitude control are located at the RF gun input and additional control points along the LINAC to allow for parameter control during operation. This high …

This presentation is a webinar to discuss eligibility, application and submission requirements, evaluation criteria, and Review and Selection Process for the paid leave analysis grants.

Bill introduced by the Texas House of Representatives relating to the designation of a portion of U.S. Highway 81 as the Corporal David Slaton Memorial Highway.

Bill introduced by the Texas House of Representatives relating to the designation of State Highway 121 in Tarrant and Johnson Counties as the Chisholm Trail Parkway.

Bill introduced by the Texas House of Representatives relating to membership of the state continuing advisory committee for special education services.

Bill introduced by the Texas House of Representatives relating to the designation of a segment of State Highway 243 in Van Zandt County as the Veterans Memorial Parkway.

Bill introduced by the Texas House of Representatives relating to the regulation of manufactured housing.

Concurrent resolution introduced by the Texas House of Representatives and Senate in memory of Jean Glaze of Gilmer.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Dr. Kitty Harris Wilkes on her selection as a 2011 YWCA of Lubbock Woman of Excellence.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Beth Lawson on her selection as a 2011 YWCA of Lubbock Woman of Excellence.

Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Aimee Doane on being named a 2011 Lubbock YWCA Woman of Excellence.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Dr. Kamlesh Varma on her selection as a 2011 YWCA of Lubbock Woman of Excellence.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Dr. Kelly Overley on her selection as a 2011 Woman of Excellence by the YWCA of Lubbock.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Yvonne Racz Key on her selection as a 2011 YWCA of Lubbock Woman of Excellence.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Sarah Jo Lambert on her selection as a 2011 YWCA of Lubbock Woman of Excellence.

Concurrent resolution introduced by the Texas House of Representatives and Senate congratulating Kay Cross on her receipt of the Jane O.Burns Award from the YWCA of Lubbock.

Concurrent resolution introduced by the Texas House of Representatives and Senate commemorating the 70th anniversary of MD Anderson Cancer Center.

Bill introduced by the Texas Senate relating to the name and powers of the Red River Redevelopment Authority.

Bill introduced by the Texas Senate relating to health insurance coverage and financial assistance for eligible survivors of certain public servants killed in the line of duty.

Bill introduced by the Texas Senate relating to transportation, lodging, and meals offered to and accepted by public servants.

Joint resolution introduced by the Texas House of Representatives and Senate proposing a constitutional amendment authorizing the legislature to permit professional sports team charitable foundations to conduct charitable raffles.

Bill introduced by the Texas Senate relating to increasing the punishment for the offense of fraudulent or fictitious military record.

A letter report issued by the Government Accountability Office with an abstract that begins "Abusive tax avoidance transactions (ATAT) range from frivolous tax schemes to highly technical and abusive tax shelters marketed to taxpayers by promoters selling tax advice. ATATs threaten the U.S. tax system's integrity if honest taxpayers believe that others do not pay their fair share of taxes. GAO was asked to (1) describe what is known about trends in ATAT usage; (2) describe results of IRS's ATAT enforcement efforts; and (3) evaluate IRS's implementation of the ATAT provisions in the American Jobs Creation Act of 2004. Using criteria from the act, GAO analyzed statistics and other documents on trends and results and interviewed IRS and other tax experts."

In support of Compton scattering gamma-ray source efforts at LLNL, a multi-bunch test stand is being developed to investigate accelerator optimization for future upgrades. This test stand will enable work to explore the science and technology paths required to boost the current 10 Hz monoenergetic gamma-ray (MEGa-Ray) technology to an effective repetition rate exceeding 1 kHz, potentially increasing the average gamma-ray brightness by two orders of magnitude. Multiple bunches must be of exceedingly high quality to produce narrow-bandwidth gamma-rays. Modeling efforts will be presented, along with plans for a multi-bunch test stand at LLNL. The test stand will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. The photoinjector will be a high gradient standing wave structure, featuring a dual feed racetrack coupler. The accelerator will increase the electron energy so that the emittance can be measured using quadrupole scanning techniques. Multi-bunch diagnostics will be developed so that the beam quality can be measured and compared with theory. Design will be presented with modeling simulations, and layout plans.