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Title: Compact Electronic X-Ray Source for Borehole Logging

Abstract

In Phase II we have successfully designed the full KlyLac system to produce 1 MeV e-beam and energized by a novel sheet beam 24 keV, half-MW peak power, high perveance electron gun currently under test. Key developments we accomplished include a rugged, cross-bar type linac structure, wideband automatic frequency control, SmCo permanent magnet focusing elements and ultra-compact, planar, high aspect ratio klystron cavities. Reduced sensitivity to the harsh environmental conditions is achieved by using a) a regenerative RF feedback enabling stable self-oscillation and b) a wide bandwidth, easy-to-fabricate structure.The XCL would give its user an unprecedented ability to deliver extremely precise bursts of radiation to deep, small-diameter, directionally-drilled wells, while also being robust enough for the harsh environments found in geological wells (high temperature and vibration). The energy and intensity of the radiation can be controlled while logging, making improved measurements possible. Unlike the current 137Cs radioactive sources, the XCL produces no radiation when off and is safer (e.g. no accidental exposure) than traditional sources. The XCL solves the proliferation hazards posed by radioactive sources. In Phase II the prototype of XCL system has been designed and engineered for 1 MeV energy. Functionality of core elements has been validated towardsmore » production of a few Ci of Ir192. Flat beam gun has been tested. In Phase IIb, the complete system will be built and tested with participation of a Consultant with expertise in the well logging industry. This will set the stage for Phase III, in which we will act as an OEM supplier of the XCL source for integration into products of existing logging equipment suppliers. The goal of the Phase II project was to demonstrate design of a 1 MeV KlyLac-based tool prototype capable to produce up to 20 μA beam current and beam average power >20 W (corresponding to a few Ci activity).« less

Authors:
Publication Date:
Research Org.:
RadiaBeam Technologies, Santa Monica, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1582052
Report Number(s):
DOE-RBS-15721
DOE Contract Number:  
SC0015721
Type / Phase:
SBIR (Phase II)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Smirnov, Alexei. Compact Electronic X-Ray Source for Borehole Logging. United States: N. p., 2020. Web.
Smirnov, Alexei. Compact Electronic X-Ray Source for Borehole Logging. United States.
Smirnov, Alexei. Fri . "Compact Electronic X-Ray Source for Borehole Logging". United States.
@article{osti_1582052,
title = {Compact Electronic X-Ray Source for Borehole Logging},
author = {Smirnov, Alexei},
abstractNote = {In Phase II we have successfully designed the full KlyLac system to produce 1 MeV e-beam and energized by a novel sheet beam 24 keV, half-MW peak power, high perveance electron gun currently under test. Key developments we accomplished include a rugged, cross-bar type linac structure, wideband automatic frequency control, SmCo permanent magnet focusing elements and ultra-compact, planar, high aspect ratio klystron cavities. Reduced sensitivity to the harsh environmental conditions is achieved by using a) a regenerative RF feedback enabling stable self-oscillation and b) a wide bandwidth, easy-to-fabricate structure.The XCL would give its user an unprecedented ability to deliver extremely precise bursts of radiation to deep, small-diameter, directionally-drilled wells, while also being robust enough for the harsh environments found in geological wells (high temperature and vibration). The energy and intensity of the radiation can be controlled while logging, making improved measurements possible. Unlike the current 137Cs radioactive sources, the XCL produces no radiation when off and is safer (e.g. no accidental exposure) than traditional sources. The XCL solves the proliferation hazards posed by radioactive sources. In Phase II the prototype of XCL system has been designed and engineered for 1 MeV energy. Functionality of core elements has been validated towards production of a few Ci of Ir192. Flat beam gun has been tested. In Phase IIb, the complete system will be built and tested with participation of a Consultant with expertise in the well logging industry. This will set the stage for Phase III, in which we will act as an OEM supplier of the XCL source for integration into products of existing logging equipment suppliers. The goal of the Phase II project was to demonstrate design of a 1 MeV KlyLac-based tool prototype capable to produce up to 20 μA beam current and beam average power >20 W (corresponding to a few Ci activity).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {1}
}

Technical Report:
This technical report may be released as soon as January 10, 2024
Other availability
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