Difference between revisions of "Doppler Broadening"
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| − | <math>cos\theta_{photon1}</math>=-<math>cos\theta_{ | + | <math>cos\theta_{photon1}</math>=-<math>cos\theta_{1}</math> for an excited fragment in det-1<br> |
<math>cos\theta_{photon2}</math>=-<math>cos\theta_{2}</math> for an excited fragment in det-2<br> | <math>cos\theta_{photon2}</math>=-<math>cos\theta_{2}</math> for an excited fragment in det-2<br> | ||
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<math>\theta_i</math> is the polar emission angle of excited fragment and <math>\beta_i</math> the fragment velocity<br> | <math>\theta_i</math> is the polar emission angle of excited fragment and <math>\beta_i</math> the fragment velocity<br> | ||
| − | <math>\sqrt{E_i[MeV]}</math> | + | <math>\frac{\sqrt{E_i[MeV]}}{A_i[u]}</math> |
== Photon emission off fission fragment velocity axis== | == Photon emission off fission fragment velocity axis== | ||
Revision as of 04:29, 24 June 2007
Theory of Dopler Broadening
Photon emmision along direction of fission fragment velocit
= amount of energy the gamma ray was shifted by
where is the Doppler-shifted -ray energy which was measured
=- for an excited fragment in det-1
=- for an excited fragment in det-2
is the polar emission angle of excited fragment and the fragment velocity
Photon emission off fission fragment velocity axis
Cf-252 Fission
Photon Spectra from Cf-252
Measurements in the Beam test lab with HpGe and BC408
June 15,2007 Cf-252 measurements with HpGe & neutron sensitive scintillators in coincidence
June 19,2007 Cf-252 measurements with HpGe & neutron sensitive scintillators in coincidence
June 19,2007 Cf-252 measurements of gamma-spectrum using HpGe ungated