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Primary yields of protons measured using CR-39 in laser-induced deuteron–deuteron fusion reactions

Journal Article · · Nuclear Science and Techniques
 [1];  [2];  [2];  [3];  [4];  [2];  [5];  [6];  [2];  [2];  [2];  [2];  [2];  [2];  [7];  [8];  [5];  [9];  [9];  [9] more »;  [10];  [2];  [11] « less
  1. Chinese Academy of Sciences (CAS), Beijing (China); Chinese Academy of Sciences (CAS), Shanghai (China); Cyclotron Institute, Texas A&M University, TX (United States)
  2. Chinese Academy of Sciences (CAS), Shanghai (China)
  3. Chinese Academy of Sciences (CAS), Shanghai (China); Chinese Academy of Sciences (CAS), Beijing (China); Fudan Univ., Shanghai (China)
  4. Chinese Academy of Sciences (CAS), Shanghai (China); Shanghai Normal Univ. (China)
  5. Inner Mongolia Univ. for Nationalities, Tongliao (China)
  6. Texas A & M Univ., College Station, TX (United States); National Inst. of Nuclear Physics (INFN), Catania (Italy)
  7. Beijing Normal Univ. (China)
  8. Shanghai Univ. (China)
  9. Chinese Academy of Sciences (CAS), Beijing (China); Chinese Academy of Sciences (CAS), Shanghai (China)
  10. Chinese Academy of Sciences (CAS), Shanghai (China); ShanghaiTech Univ. (China)
  11. Chinese Academy of Sciences (CAS), Shanghai (China); Shanghai Univ. (China)
+ Show Author Affiliations
The deuteron and deuteron (DD) fusion reactions is the most crucial reaction in the nuclear astrophysics and inertial confinement fusion, which is responsible for synthesizing chemical elements, and for powering the stellar evolution. The plasma environment generated by the high-intensity laser used in a DD fusion reaction is similar to the early stage of the Big Bang. Therefore, it is important to study laser-induced DD fusion reactions. Recently, we experimentally investigated such reactions using eight laser beams with the third harmonic impact on a deuterated polyethylene target at the ShenGuang-II Upgrade facility. In this work, we focused on the application of range-filter spectrometers assembled from a 70 μm aluminum filter and two CR-39 nuclear track detectors to measure the yields of primary DD protons. Based on the track diameter calibration results of 3 MeV protons used to diagnose the tracks on the range- filter spectrometers, we measured a primary DD proton yield of approximately (8:52 ± 1:7) × 106, consistent with the yields from similar laser facilities worldwide, indicating that range-filter spectrometry is an effective way to measure primary DD protons. Furthermore, using other accurate detectors may help to measure the rare events of D3He protons.
Research Organization:
Cyclotron Institute, Texas A&M University, TX (United States)
Sponsoring Organization:
Chinese Academy of Sciences; National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC)
Grant/Contract Number:
FG02-93ER40773
OSTI ID:
1779712
Journal Information:
Nuclear Science and Techniques, Journal Name: Nuclear Science and Techniques Journal Issue: 6 Vol. 31; ISSN 1001-8042
Publisher:
Shanghai Institute of Applied PhysicsCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CR-39
DD fusion
DD proton
range-fi lter spectrometers