Journal of the Korean Magnetics Society (한국자기학회지)

The Korean Magnetics Society (한국자기학회)
권호 표지
DOI QR코드

DOI QR Code

Effects on the Gamma Rays Scattered Backward by the Gold Cylinder on the Nuclear Energy Level

실린더 금속판에 의해 뒤쪽산란된 감마선이 핵에너지 준위에 미치는 효과

  • Jeong, M.T. (Department of Radiological Science, Dongshin University) ;
  • Chol, N.G. (Department of Radiological Science, Dongshin University) ;
  • Cheoun, M.K. (Department of physics, Soongsil University)
  • Published : 2007.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

When the gamma-ray source, $^{133}Cs$, embedded in a solid is placed at the center of a gold cylinder, the width of 81 keV level is shown to become narrower. This result implies a prolongation of the lifetime of that energy level. With a 0.5-mm-thick, 5-cm-long, 2-mm-diameter platinum cylinder, we obtain a width narrower by 6.1 % at 4.2 K.

본 연구에서는 고체 안에 둘러쌓인 감마선 원천핵 $^{133}Cs$를 금판(gold plate)으로 된 실린더 안에 놓았을 때 첫 여기상태인 81 keV 에너지 준위폭이 더 좁아짐을 볼 수 있었다. 이러한 결과는 에너지 준위의 수명이 연장된 것을 의미한다. 두께 0.5 mm, 길이 5 cm, 반경 1 mm의 실린더를 사용했을 때 4.2 K에서 에너지 준위폭은 6.1 %정도 좁아지는 결과를 얻었다.

Keywords

References

  1. T. Ohtsuki, H. Yuki, M. Muto, J. Kasagi, and K. Ohno, Phys. Rev. Lett., 93, 112501 (2004) https://doi.org/10.1103/PhysRevLett.93.112501
  2. K. T. Bainbridge, Chem. Eng. News, 30, 654 (1952) https://doi.org/10.1021/cen-v030n007.p654
  3. D. H. Byers and R. Stump, Phys. Rev., 112, 77 (1958) https://doi.org/10.1103/PhysRev.112.77
  4. I.-T. Cheon, Phys. Rev., A7, 2785 (1988)
  5. I.-T. Cheon, Laser Physics, 4, 579 (1994)
  6. I.-T. Cheon, Hyperfine Interactions, 78, 231 (1993)
  7. I.-T. Cheon, J. Phys. Soc. Jpn., 63, 47 (1994)
  8. I.-T. Cheon, Z. Phys., D39, 3 (1997)
  9. I.-T. Cheon, Phys. Soc. Jpn., 44, 5 (1999)
  10. I.-T. Cheon, J. Phys. Soc. Jpn., 70, 3193 (2001)
  11. I.-T. Cheon and M. T. Jeong, J. Korean Phys. Soc., 43, S87 (2003)
  12. M. T. Jeong, Hyperfine Interactions, 156/157, 165 (2004) https://doi.org/10.1023/B:HYPE.0000043227.22012.29
  13. I.-T. Cheon and M. T. Jeong, J. Korean Phys. Soc., 46, 397 (2005)
  14. I.-T. Cheon, Europhys. Lett., 69, 900 (2005)
  15. E. U. Condon and H. Odishaw, Handbook of Physics, 2nd Ed., McGraw-Hill, pp. 9-190 (1967)
  16. Janos Kirz, X-ray data booklet, Lawrence Berkley National Laboratory, Sec. 3, 1 (2000)
  17. J. W. Strutt, XCOM Photon Cross Section Database, http://www.cxro.lbl.gov
  18. Y. V. Sergeenkov and V. M. Sigalov, Nucl. Data Sheets for A=133, 49, 639 (1986) https://doi.org/10.1016/0090-3752(86)80007-2
  19. H. Muramatsu et al., Phys. Rev., B58, 1313 (1998)
  20. K. Sidappa, N. Govinda Nayak, K. M. Balakrishna, N. Lingappa, and Shivaramu, Phys. Rev., A39, 5106 (1989)
  21. I. S. Elyaseery, A. Shukri, C. S. Chong, A. A. Tajuddin, and D. A. Bradley, Phys. Rev., 57, 3469 (1998) https://doi.org/10.1103/PhysRevA.57.3469
  22. V. I. Vzsotskii, Phys. Rev., C58, 337 (1998)
  23. J. Huennekens, H. P. Park, T. Colbert, and S. C. McClain, Phys. Rev., A35, 2892 (1987)