Use of generator produced neutrons in coal analysis: Quarterly report, March 15, 1986-June 15, 1986. [Around a borehole]

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6483495

Thorpe, A N; Senftle, F E; Mikesell, J L

To study the use of a D-D neutron generator as a neutron source for gamma-ray spectroscopy in coal, we must place a D-D generator in service as soon as possible. Because of various administrative delays in purchasing a D-D TTA, it appears it will be some months before a D-D TTA assembly can be delivered. In the meantime, a D-D TTA has been borrowed from Sandia National Laboratory. Work is currently being done to recover a transformer from an old TTA to use with this tube. This arrangement will be useful for limited tests. In the meantime, measurements have been made in coal with 14-MeV neutrons using a D-T neutron generator. Certain limitations such as neutron burst repetition rate are evident. However, to increase the rate, a rapid technique to measure the relative neutron flux is required. A method using the gamma rays from the /sup 16/O(n,p)/sup 16/N reaction looks promising. Tests show that this method can be used if SnO/sub 2/ is used as an oxygen source. As soon as the neutron counter is finished, work can proceed to increase the neutron burst repetition rate using this new method to measure the relative neutron flux as the electronics are adjusted.

• Research Organization: Howard Univ., Washington, DC (USA). School of Engineering; Geological Survey, Reston, VA (USA)
• DOE Contract Number: FG22-85PC80537
• OSTI ID: 6483495
• Report Number(s): DOE/PC/80537-T6; ON: DE87010856
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ACTIVATION ANALYSIS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COAL
DEUTERIUM
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAMMA SPECTRA
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATERIALS
NATIONAL ORGANIZATIONS
NEUTRON SOURCES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARTICLE SOURCES
PULSE TECHNIQUES
RADIATION SOURCES
RADIOISOTOPES
SPECTRA
STABLE ISOTOPES
TRITIUM
US DOI
US GS
US ORGANIZATIONS
YEARS LIVING RADIOISOTOPES