Study of neutron focusing at the Texas Cold Neutron Source: Progress report

Technical Report · Thu Jan 28 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10133787· OSTI ID:10133787

Wehring, B W; Uenlue, K

The purpose of this three year study is to develop a neutron focusing system to be used with the Texas Cold Neutron Source (TCNS) to produce an intense beam of neutrons. A prompt gamma activation analysis (PGAA) facility will also be designed, setup, and tested under this DOE grant. During the first year of the DOE grant, a new procedure was developed and used to design a focusing converging guide consisting of truncated rectangular cone sections. Detailed calculations were performed using a 3-D Monte Carlo code which the authors wrote to trace neutrons through the existing curved guide of the TCNS into the proposed converging guide. Using realistic reflectivities for Ni-Ti supermirrors, they obtained gains of 4 to 5 for the neutron flux averaged over an area of 1 x 1 cm. Two graduate students were supported by the first year of the DOE grant. Both have passed the Nuclear Engineering qualifying examination and have been admitted to candidacy for the doctoral degree at The University of Texas at Austin. Their programs of study and dissertation projects have been approved by the appropriate committees.

• Research Organization: Texas Univ., Austin, TX (United States). Nuclear Engineering Teaching Lab.
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-92ER75711
• OSTI ID: 10133787
• Report Number(s): DOE/ER/75711--1; ON: DE94008349
• Country of Publication: United States
• Language: English

Related Subjects

663610
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLD NEUTRONS
FOCUSING
NEUTRON BEAMS
NEUTRON PHYSICS
NEUTRON SOURCE FACILITIES
PROGRESS REPORT