Where do photons go When they come out

  • Slides: 35
Download presentation
Where do photons go When they come out of the beamline and hit my

Where do photons go When they come out of the beamline and hit my crystal

Elastic scattering

Elastic scattering

Elastic scattering

Elastic scattering

Inelastic scattering

Inelastic scattering

Photonuclear absorption

Photonuclear absorption

Photonuclear absorption

Photonuclear absorption

Photoelectric absorption

Photoelectric absorption

Photoelectric absorption e- +

Photoelectric absorption e- +

Fluorescence +

Fluorescence +

Fluorescence e- +

Fluorescence e- +

Photoelectric absorption

Photoelectric absorption

Photoelectric absorption e- +

Photoelectric absorption e- +

Secondary ionization e-

Secondary ionization e-

Secondary ionization e- + e-

Secondary ionization e- + e-

Secondary ionization

Secondary ionization

Secondary ionization

Secondary ionization

Secondary ionization + e-

Secondary ionization + e-

Secondary ionization e- e- + e- e-

Secondary ionization e- e- + e- e-

Secondary ionization e- e- + + + e- + + ee-

Secondary ionization e- e- + + + e- + + ee-

Secondary ionization e- e- + + + e- + + ee-

Secondary ionization e- e- + + + e- + + ee-

Secondary ionization e- e- e- + + + e- + + ee-

Secondary ionization e- e- e- + + + e- + + ee-

Where do photons go? Protein 1 A x-rays Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop inelastic scattering (7%)

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop inelastic scattering (7%) Re-emitted (99%) Absorbed (~0%)

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop inelastic scattering (7%) Re-emitted (99%) Absorbed (~0%) Photoelectric (87%)

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop inelastic scattering (7%) Re-emitted (99%) Absorbed (~0%) Photoelectric (87%) Re-emitted (~0%) Absorbed (99%)

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop

Where do photons go? Protein 1 A x-rays elastic scattering (6%) Transmitted (98%) beamstop inelastic scattering (7%) Re-emitted (99%) Absorbed (~0%) Photoelectric (87%) Re-emitted (~0%) useful/absorbed energy: 7. 3% Absorbed (99%)

Where do photons go? Seleno. Protein 1 A x-rays elastic scattering (6%) Transmitted (97%)

Where do photons go? Seleno. Protein 1 A x-rays elastic scattering (6%) Transmitted (97%) beamstop inelastic scattering (5%) Re-emitted (99%) Absorbed (~0%) Photoelectric (88%) Re-emitted (~0%) useful/absorbed energy: 7. 6% Absorbed (99%)

Where do photons go? Seleno. Protein 0. 92 A x-rays just above the edge

Where do photons go? Seleno. Protein 0. 92 A x-rays just above the edge elastic scattering (2%) Transmitted (91%) beamstop inelastic scattering (2%) Re-emitted (99%) Absorbed (~0%) Photoelectric (96%) Re-emitted (57%) useful/absorbed energy: 5. 1% Absorbed (44%)

Where do photons go? Seleno. Protein 0. 97 A x-rays far above the edge

Where do photons go? Seleno. Protein 0. 97 A x-rays far above the edge elastic scattering (2%) Transmitted (90%) beamstop inelastic scattering (2%) Re-emitted (99%) Absorbed (~0%) Photoelectric (96%) Re-emitted (60%) useful/absorbed energy: 5. 1% Absorbed (40%)

Background scattering 14 16 The form-factor of the cryostream 12 4 6 8 10

Background scattering 14 16 The form-factor of the cryostream 12 4 6 8 10 theoretical 2 0 Electron equivalents measured 20 10 5 4 3 2. 5 2 1. 8 1. 6 Resolution (Ǻ) 1. 4 1. 2 1

Background scattering Photons/s/pixel Se edge with detector at 100 mm 7. 5 3. 8

Background scattering Photons/s/pixel Se edge with detector at 100 mm 7. 5 3. 8 2. 5 1. 9 Resolution (Ǻ) 1. 5 1. 2 1. 1

PHOTONS IN CHEMISTRY OUT PHOTONS IN CHEMISTRY OUTPHOTONS IN CHEMISTRY OUT PHOTONS IN CHEMISTRY OUT
XRay Emission Spectroscopy Photons in and Photons outXRay Emission Spectroscopy Photons in and Photons out
Come scrivi Come parli Come pensi Come SMSCome scrivi Come parli Come pensi Come SMS
Come Come Is 55 1 9 Come ComeCome Come Is 55 1 9 Come Come
They come to DISCOVER They come to BEThey come to DISCOVER They come to BE
EMCal PPR Photons section 070309 EMCal PPR PhotonsEMCal PPR Photons section 070309 EMCal PPR Photons
Detection of photons and electrons in EMCAL PhotonsDetection of photons and electrons in EMCAL Photons
Bose systems photons phonons magnons Photons and PlancksBose systems photons phonons magnons Photons and Plancks
Interaction of xray photons and gamma ray photonsInteraction of xray photons and gamma ray photons
Photons in the universe HansJrgen Wollersheim 2020 PhotonsPhotons in the universe HansJrgen Wollersheim 2020 Photons
Photons Quantum Physics Photons Mr Nesbo Learning ObjectivesPhotons Quantum Physics Photons Mr Nesbo Learning Objectives
Robert Frost Out Out Out Out This isRobert Frost Out Out Out Out This is
The Chaparral Come one come all come toThe Chaparral Come one come all come to
Come rico come sano come pescado y mariscosCome rico come sano come pescado y mariscos
Come Thou Fount Come Thou King Come ThouCome Thou Fount Come Thou King Come Thou
Come ti chiami Mi chiamo Come stai ComeCome ti chiami Mi chiamo Come stai Come
248 COME LORD IN THY SPIRIT COME Come248 COME LORD IN THY SPIRIT COME Come
Come Two Invitations Come Two Invitations 1 ComeCome Two Invitations Come Two Invitations 1 Come
248 COME LORD IN THY SPIRIT COME Come248 COME LORD IN THY SPIRIT COME Come
COME CAMBIANO I LICEI COME ERANO COME SARANNOCOME CAMBIANO I LICEI COME ERANO COME SARANNO
248 COME LORD IN THY SPIRIT COME Come248 COME LORD IN THY SPIRIT COME Come
Oh Come All Ye O Come O ComeOh Come All Ye O Come O Come
Come Thou Fount Come Thou King Come ThouCome Thou Fount Come Thou King Come Thou
1 Come Ye Thankful People Come 1 Come1 Come Ye Thankful People Come 1 Come