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Title: Superconducting gamma and fast-neutron spectrometers with high energy resolution

Abstract

Superconducting Gamma-ray and fast-neutron spectrometers with very high energy resolution operated at very low temperatures are provided. The sensor consists of a bulk absorber and a superconducting thermometer weakly coupled to a cold reservoir, and determines the energy of the incident particle from the rise in temperature upon absorption. A superconducting film operated at the transition between its superconducting and its normal state is used as the thermometer, and sensor operation at reservoir temperatures around 0.1 K reduces thermal fluctuations and thus enables very high energy resolution. Depending on the choice of absorber material, the spectrometer can be configured either as a Gamma-spectrometer or as a fast-neutron spectrometer.

Inventors:
 [1];  [2];  [3]
  1. (San Jose, CA)
  2. (Oakland, CA)
  3. (Berkeley, CA)
Publication Date:
Research Org.:
LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
986189
Patent Number(s):
7,446,314
Application Number:
11/240,675; TRN: US201017%%29
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ENERGY ABSORPTION; GAMMA DETECTION; NEUTRON DETECTION; FAST NEUTRONS; ENERGY RESOLUTION; SPECTROMETERS; SUPERCONDUCTING FILMS; THERMOMETERS; TEMPERATURE RANGE 0000-0013 K

Citation Formats

Friedrich, Stephan, , Niedermayr, Thomas R., and Labov, Simon E. Superconducting gamma and fast-neutron spectrometers with high energy resolution. United States: N. p., 2008. Web.
Friedrich, Stephan, , Niedermayr, Thomas R., & Labov, Simon E. Superconducting gamma and fast-neutron spectrometers with high energy resolution. United States.
Friedrich, Stephan, , Niedermayr, Thomas R., and Labov, Simon E. Tue . "Superconducting gamma and fast-neutron spectrometers with high energy resolution". United States. https://www.osti.gov/servlets/purl/986189.
@article{osti_986189,
title = {Superconducting gamma and fast-neutron spectrometers with high energy resolution},
author = {Friedrich, Stephan and , Niedermayr, Thomas R. and Labov, Simon E.},
abstractNote = {Superconducting Gamma-ray and fast-neutron spectrometers with very high energy resolution operated at very low temperatures are provided. The sensor consists of a bulk absorber and a superconducting thermometer weakly coupled to a cold reservoir, and determines the energy of the incident particle from the rise in temperature upon absorption. A superconducting film operated at the transition between its superconducting and its normal state is used as the thermometer, and sensor operation at reservoir temperatures around 0.1 K reduces thermal fluctuations and thus enables very high energy resolution. Depending on the choice of absorber material, the spectrometer can be configured either as a Gamma-spectrometer or as a fast-neutron spectrometer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 04 00:00:00 EST 2008},
month = {Tue Nov 04 00:00:00 EST 2008}
}

Patent:

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