Revision as of 01:55, 24 June 2007

Theory of Dopler Broadening

where $E_{photon}$ is the measured Doppler-shifted $\gamma$ -ray energy

$cos\theta_{photon1}$ =- $cos\theta_{1}$ for an excited fragment in det-1
$cos\theta_{photon2}$ =- $cos\theta_{2}$ for an excited fragment in det-2

$\theta_i$ is the polar emission angle of excited fragment and $\beta$ the fragment velocity

@@ Line 3: / Line 3: @@
 <math>E_{shift} = E_{photon} \frac{1-\beta \cos(\theta_{photon})}{\sqrt{1-\beta_i^2}}</math>
-<math>cos\theta_{photon1}</math>
+where <math>E_{photon}</math> is the measured Doppler-shifted <math>\gamma</math>-ray energy<br>
+<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>\theta_i</math> is the polar emission angle of excited fragment and <math>\beta</math> the fragment velocity<br>
 == Photon emission off fission fragment velocity axis==