[List of Quartermaster's Stores, January 29, 1866]

[List of Quartermaster's Stores, January 29, 1866]

Date: January 29, 1866
Creator: Powell, James
Description: Form for transferring items from the quartermaster's stores, in this case, one field desk in serviceable condition delivered by James Powell to Redway, stationed at De Valls Bluff, Arkansas.
Contributing Partner: UNT Libraries Special Collections
[List of Quartermaster's Stores, January 29, 1866]

[List of Quartermaster's Stores, January 29, 1866]

Date: January 29, 1866
Creator: Powell, James
Description: Form for transferring items from the quartermaster's stores, in this case, one field desk in serviceable condition delivered by James Powell to Redway, stationed at De Valls Bluff, Arkansas.
Contributing Partner: UNT Libraries Special Collections
Reducing Our Carbon Footprint through Ridesharing

Reducing Our Carbon Footprint through Ridesharing

Date: 2012
Creator: Garrett, Kim; Bell, Jesse; Huang, Yan & Powell, James
Description: This report discusses research on reducing our carbon footprint through ridesharing. The focus of this research project was to analyze and collect travel trajectories to calculate carbon footprints under different travel modes and identify ways to reduce it.
Contributing Partner: UNT College of Engineering
Shared Ride: Transportation, Carbon Footprint and Ridesharing

Shared Ride: Transportation, Carbon Footprint and Ridesharing

Date: 2012
Creator: Garrett, Kim; Bell, Jesse; Huang, Yan & Powell, James
Description: This poster discusses research on transportation, carbon footprinting and ridesharing. The focus of this research project was to analyze and collect travel trajectories to calculate carbon footprints under different travel modes and identify ways to reduce it.
Contributing Partner: UNT College of Engineering
Production of an Accelerated Oxygen-14 Beam

Production of an Accelerated Oxygen-14 Beam

Date: May 3, 2002
Creator: Powell, James; O'Neil, James P. & Cerny, Joseph
Description: BEARS is an ongoing project to provide a light-ion radioactive-beam capability at the 88-Inch Cyclotron at LBNL. Light radioactive isotopes are produced at a 10 MeV proton medical cyclotron, transported 350 m via a high-speed gas transport capillary, cryogenically separated, and injected into the 88-Inch Cyclotron's ion source. The first radioactive beam successfully accelerated was Carbon-11 and beams of intensity more than 108 ions/sec have been utilized for experiments. Development of Oxygen-14 as the second BEARS beam presented considerable technical challenges, both due to its short half-life of 71 seconds and the radiation chemistry of oxygen in the target. The usual techniques developed for medical uses of Oxygen-15 involve the addition of significant amounts of carrier oxygen, something that would overload the ion source. As a solution, Oxygen-14 is produced as water in a carrier-free form, and is chemically converted in two steps to carbon dioxide, a form readily usable by the BEARS. This system has been built and is operational, and initial tests of accelerating an Oxygen-14 beam have been performed.
Contributing Partner: UNT Libraries Government Documents Department