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Beyond the acceptance limit of DRAGON: The case of the 6Li(α,γ)10B reaction

Journal Article · · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
 [1];  [2];  [3];  [3];  [4];  [5];  [6];  [7];  [3];  [6];  [3];  [2];  [6];  [5];  [3];  [8];  [9]
  1. McMaster Univ., Hamilton, ON (Canada); Colorado School of Mines
  2. McMaster Univ., Hamilton, ON (Canada)
  3. TRIUMF, Vancouver, BC (Canada)
  4. Univ. of Notre Dame, IN (United States); CNRS/IN2P3 - Université de Bordeaux, Gradignan (France)
  5. Ohio Univ., Athens, OH (United States)
  6. Colorado School of Mines, Golden, CO (United States)
  7. TRIUMF, Vancouver, BC (Canada); Univ. of Northern British Columbia, Prince George, BC (Canada)
  8. Univ. of British Columbia, Vancouver, BC (Canada)
  9. TRIUMF, Vancouver, BC (Canada); Univ. of York (United Kingdom)
+ Show Author Affiliations
Radiative capture reactions play a pivotal role for our understanding of the origin of the elements in the cosmos. Recoil separators provide an effective way to study these reactions, in inverse kinematics, and take advantage of the use of radioactive ion beams. However, a limiting factor in the study of radiative capture reactions in inverse kinematics is the momentum spread of the product nuclei, which can result in an angular spread larger than the geometric acceptance of the separator. The DRAGON facility at TRIUMF is a versatile recoil separator, designed to study radiative capture reactions relevant to astrophysics in the A~10–30 region. In this work we present the first attempt to study with DRAGON a reaction, 6Li(α, γ)10B, for which the recoil angular spread exceeds DRAGON’s acceptance. Furthermore, our result is in good agreement with the literature value, showing that DRAGON can measure resonance strengths of astrophysically important reactions even when not all the recoils enter the separator.
Research Organization:
Colorado School of Mines, Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
FG02-93ER40789
OSTI ID:
1830736
Journal Information:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 987; ISSN 0168-9002
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
inverse kinematics
nuclear astrophysics
radiative capture
recoil separators
resonance strength