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Fig. 3.1 Energieverlust durch Ionisation:

Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

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Page 1: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 3.1

Energieverlust durch Ionisation:

Page 2: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 3.2

hadronischer Schauer:

elektromagnetischer Schauer:

Page 3: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 3.3

Wechselwirkung von Photonen:

kohärente Streuung am ganzen Atom, weder Ionisation noch Anregung, nicht wichtig als Energieverlustmechanismus

Page 4: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.1

Vorwärtsspektrometer

Ablenkung in x,z-Ebene: Messung von mindestens 2 Punkten or dem B-Feld und 2 danach

Page 5: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.2

solenoidales B­Feld

z

Messung von mindestens 3 Punktendefiniert p

Page 6: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.3

Vieldrahtproportionalkammer

typische Gasverstärkung: 2000-10000

Page 7: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.4

Halbleiterdetektor

Streifendetektor

Pixeldetektor

Page 8: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.5

ATLAS Pixel Detektor: 3 Lagen, 1.8 m3, 80 Millionen Auslesekanäle 

Page 9: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.6

szintilierende optische Fasern

Länge: einige Meter

Page 10: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.7

Prinzip eines Sampling Kalorimeters

Photon-induced shower in a cloud chamber;The intermediate black parts are lead blocks; in addition, there is a magnetic field perpendicular to the figure plane

Page 11: Energieverlust durch Ionisation · ATLAS Pixel Detektor: ... Photon-induced shower in a cloud chamber; The intermediate black parts are lead blocks; in addition, there is a magnetic

Fig. 4.8

Elektromagnetisches Kalorimeter aus Kristallen

ALICE am LHC