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Various analyses have been performed recently to estimate the performance of the air conditioning (HVAC) system planned for the Undulator Hall. This reports summarizes the results and provides an upgrade plan to be used if new requirements are needed in the future. The estimates predict that with the planned loads the tunnel air temperature will be well within the allowed tolerance during normal operation.

The LCLS injector and linac systems utilize a series of quadrupole magnets with a beam position monitor (BPM) captured in the magnet pole tips. The BPM measures the electron beam position by comparing the electrical signal from 4 electrodes and interpolating beam position from these signals. The manufacturing tolerances of the magnet and BPM are critical in determining the mechanical precision of the electrodes relative to the nominal electron beam Z-axis. This study evaluates the statistical uncertainty of the electrodes center axis relative to the nominal electron beam axis.

Roller Cam Positioners could support the LCLS undulator sections allowing micron sized alignment adjustment of each undulator in 5 degrees of freedom. The supports are kinematic with the number of degrees of freedom matched to the number of constraints. Ton loads are supported on simple ball bearings. Motion is intrinsically bounded. Positioning mechanisms are based on pure rolling motion with sub-micron hysteresis and micron resolution. This note describes a general purpose positioning mechanism suitable for undulator support.

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The SSRL Gun Test Facility (GTF) was built to develop a high brightness electron injector for the LCLS and has been operational since 1996. Measurements at the GTF include quadrupole scan transverse emittance measurements and linac phase scan longitudinal emittance measurements. Typically the beam size is measured on a screen as a function of a quadrupole current or linac phase and the beam matrix is then fit to the measured data. Often the emittance which is the final result of the measurement is the only number reported. However, the method used to reduce the data to the final emittance value can have a significant effect on the result. This paper describes in painful detail the methods used to analyze the transverse and longitudinal emittance data collected at the GTF.

The Wire Position Monitoring System (WPM) will track changes in the transverse position of LCLS Beam Position Monitors (BPMs) to 1{micro}m over several weeks. This position information will be used between applications of beam based alignment to correct for changes in component alignment. The WPM system has several requirements. The sensor range must be large enough so that precision sensor positioning is not required. The resolution needs to be small enough so that the signal can be used to monitor motion to 1{micro}m. The system must be stable enough so that system drift does not mimic motion of the component being monitored. The WPM sensor assembly consists of two parts, the magnetic sensor and an integrated lock-in amplifier. The magnetic sensor picks up a signal from the alternating current in a stretched wire. The voltage v induced in the sensor is proportional to the wire displacement from the center of the sensor. The integrated lock-in amplifier provides a DC output whose magnitude is proportional to the AC signal from the magnetic sensor. The DC output is either read on a digital voltmeter or digitized locally and communicated over a computer interface.

A gas attenuator is an important element of the LCLS facility. The attenuator must operate in a broad range of x-ray energies, provide attenuation coefficient between 1 and 10{sup 4} with the accuracy of 1% and, at the same time, be reliable and allow for many months of un-interrupted operation. S. Shen has recently carried out a detailed design study of the attenuator based on the use of nitrogen as a working gas. In this note we assess the features of the attenuator based on the use of argon. We concentrate on the physics issues, not the design features.

The National Museum of the Pacific War presents an oral interview with Ray Boone. Boone joined the Navy in 1937. He was assigned to the USS Blue (DD-387) and initially served in the deck division. Boone was also a pointer on one of the 5-inch guns. He eventually joined the engineering division and worked in the boiler room and details how the boiler room operated. Boone describes his experiences during the attack on Pearl Harbor. He witnessed the Utah capsize and the Arizona explode. Boone describes traveling to several areas of the ship and trying to access ammunition for the main guns as well as the efforts to get underway. He also mentions dropping depth charges on a Japanese submarine. The Blue traveled to Guadalcanal and rescued crewmembers of HMAS Canberra. Boone details his ship being critically damaged by a torpedo off Guadalcanal. He was sent back to the States on leave and then joined the USS McCook (DD-496), participating in convoy duty to North Africa and Sicily. Boone was then sent to Steam Turbine school and subsequently joined the crew of Auxiliary Rescue Tug 64 (ATR-64). He travelled to Mindanao, Philippines as his tug towed a drydock. Boone was …

The National Museum of the Pacific War presents an oral interview with Uros Roessman. Roessmann was born in Vevce, Slovenia 9 September 1925 and graduated from high school in 1943. As the country was occupied by German and Italian forces, he joined the Slovene Home Guard (Domobranci), a home defenders group. The group, led by General Rupnik fought the communist group called the Partisans led by Marshall Tito. Roessmann tells of treating an American pilot for burns after being shot down by the Germans. Although the pilot was hidden from the Germans, he along with other Americans were betrayed and ultimately sent to a prisoner of war camp. At the end of the war, Rosessman and a group of anti-communists found their way to Austria where they were placed into a refugee camp. He and his family migrated to the United States in 1949.

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

The National Museum of the Pacific War presents an oral interview with Ray Boone. Boone joined the Navy in 1937. He was assigned to the USS Blue (DD-387) and initially served in the deck division. Boone was also a pointer on one of the 5-inch guns. He eventually joined the engineering division and worked in the boiler room and details how the boiler room operated. Boone describes his experiences during the attack on Pearl Harbor. He witnessed the Utah capsize and the Arizona explode. Boone describes traveling to several areas of the ship and trying to access ammunition for the main guns as well as the efforts to get underway. He also mentions dropping depth charges on a Japanese submarine. The Blue traveled to Guadalcanal and rescued crewmembers of HMAS Canberra. Boone details his ship being critically damaged by a torpedo off Guadalcanal. He was sent back to the States on leave and then joined the USS McCook (DD-496), participating in convoy duty to North Africa and Sicily. Boone was then sent to Steam Turbine school and subsequently joined the crew of Auxiliary Rescue Tug 64 (ATR-64). He travelled to Mindanao, Philippines as his tug towed a drydock. Boone was …

The National Museum of the Pacific War presents an oral interview with Uros Roessman. Roessmann was born in Vevce, Slovenia 9 September 1925 and graduated from high school in 1943. As the country was occupied by German and Italian forces, he joined the Slovene Home Guard (Domobranci), a home defenders group. The group, led by General Rupnik fought the communist group called the Partisans led by Marshall Tito. Roessmann tells of treating an American pilot for burns after being shot down by the Germans. Although the pilot was hidden from the Germans, he along with other Americans were betrayed and ultimately sent to a prisoner of war camp. At the end of the war, Rosessman and a group of anti-communists found their way to Austria where they were placed into a refugee camp. He and his family migrated to the United States in 1949.

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.

Congress has linked adjustments in federal pay to the ECI so that wages for federal employees will remain competitive with wages paid by firms in the private sector. Under the terms of the Federal Employees' Pay Comparability Act of 1990 (P.L. 101-509), pay for civilian federal employees is adjusted each year to keep the salaries of federal workers competitive with comparable occupations in the private sector. These annual adjustments in federal employee pay-which are distinct from any pay raises associated with within-grade step increases or promotions to a higher pay grade-are based on changes in the cash compensation paid to workers in the private sector, as measured by the ECI. Under certain circumstances, the President may limit the annual increase in federal pay by executive order.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.

This article discusses temperature-dependent structural heterogeneity in calcium silicate liquids.

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.

This report discusses the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which bans all nuclear explosion and was in 1996 adopted by the U.N. General Assembly but rejected by the U.S. Senate in 1997. This report discusses the Obama Administration's stated goal of pursuing U.S. ratification of the CTBT, although the Administration has mainly focused on securing Senate consent to ratification of the New Strategic Arms Reduction Treaty (New START). This report also discusses other nuclear weapons-related issues as well as the long history of nuclear testing.

This report describes homegrown violent jihadists and the plots and attacks that have occurred since 9/11. "Homegrown" and "domestic" are terms that describe terrorist activity or plots perpetrated within the United States or abroad by American citizens, legal permanent residents, or visitors radicalized largely within the United States. The report also discusses the radicalization process and the forces driving violent extremist activity. It analyzes post-9/11 domestic jihadist terrorism and describes law enforcement and intelligence efforts to combat terrorism and the challenges associated with those efforts.

The annual State, Foreign Operations, and Related Agencies appropriations bill has been the primary legislative vehicle through which Congress reviews the U.S. international affairs budget and influences executive branch foreign policy making in recent years, as Congress has not regularly considered these issues through a complete authorization process for State Department diplomatic activities since 2003 and for foreign aid programs since 1985. This report analyzes the FY2011 request, recent-year funding trends, and congressional action related to FY2011 State-Foreign Operations legislation.

This report summarizes the FY2011 budget request for research & development (R&D) funding, including comparisons to R&D funding requests in the FY2010 budget. Congress will play a central role in defining the nation's R&D priorities, especially with respect to two overarching issues: the extent to which the Federal R&D investment can grow in the context of increased pressure on discretionary spending and how available funding will be prioritized and allocated. This report breaks down in detail the various aspects of the President's FY2011 R&D funding request.

This report provides background and rationale on collaborative R&D, and discusses federal initiative in cooperative R&D.