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Advanced experiment Tran Thien Thanh Tran Duy Tap

A primer course of experimental particle and nuclear physics . Advanced experiment Tran Thien Thanh Tran Duy Tap. OSAKA UNIVERSITY - 2009. OUTLINE. 1. Background. 2. Experiment. 3. Discussion. 1.Background. Purpose. A life time of the first excited state of 57 Fe

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Advanced experiment Tran Thien Thanh Tran Duy Tap

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  1. A primer course of experimental particle and nuclear physics  Advanced experiment Tran Thien Thanh Tran Duy Tap OSAKA UNIVERSITY - 2009

  2. OUTLINE 1. Background 2. Experiment 3. Discussion

  3. 1.Background Purpose • A life time of the first excited state of 57Fe • Calibration of time and channel relation • Measurement of the first excited state of 57Fe

  4. 1.Background

  5. 2. Experiment Procedures Stage 1: Energy calibration Stage 2:Calibration of time – channel relation Stage 3:Measurement of a life time of first excited state of 57Fe

  6. Amplifier NaI(Tl) and PMT HV power supply MCA 2. Experiment • Stage 1: Energy calibration 57Co

  7. 14,4KeV 122KeV 2. Experiment

  8. HV Amplifier Delay Amp Start TAC Stop MCA NaI(Tl) 57Co PMT SCA 2. Experiment • Stage 2: Calibration of time and channel relation Diagram of the time – channel relation

  9. 2. Experiment • Stage 2: Calibration of time and channel relation

  10. 2. Experiment • Stage 2: Calibration of time and channel relation A= -0,06667  0,22874 B = 0,26388  0,00074

  11. HV - A AMP SCA Discrimator 57Co Start TAC Stop MCA AMP SCA Discrimator HV - B 2. Experiment Stage 3:Measurement of a life time of first excited state of 57Fe

  12. 2. Experiment • Stage 3: Measurement of a life time of first excited state of 57Fe

  13. 2. Experiment • Stage 3: Measurement of a life time of first excited state of 57Fe A= 2,19815  0,02432 B = -0,02734  0,00020

  14. 3. Discussion Reference T1/2r = 98ns

  15. Thank a lot for your attention! Wellcome to HCM City

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