TTF Photocathodes Database

Photocathode # 11 .2 Datasheet

This is the 2nd cathode on plug number 11.

The cathode is a Cs2Te film, prepared in date 23/01/2001 .

Physical Measurements

and of dark current measurements 

History of the plug before deposition

History of the plug operation performed between last deposition (23/11/1998) and this cathode deposition (23/01/2001). 

 

History of the cathode during operation

The following operations are available.

Data for the cathode transfers

Cathode transfers from 23/01/2001 to 10/12/2010.

DateFromToShipmentBox
25/01/2001LASA DESY-HH-FLASH Go to3
26/03/2003DESY-HH-FLASH DESY-Zeuthen Go to3
10/02/2004DESY-Zeuthen LASA Go to3

Available pictures for this cathode

The following photographs are available.

\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto digitali\DSCN0369.jpg
Digital photo.
Cs2Te coated surface back from DESY Z, used in the gun. Ctahode is still in the transport chamber.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto digitali\DSCN0370.jpg
Digital photo.
Cs2Te coated surface. Cahode is still in the transport chamber.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto digitali\DSCN0371.jpg
Digital photo.
Cs2Te coated surface. Cahode is still in the transport chamber.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto digitali\DSCN0372.jpg
Digital photo.
Cs2Te coated surface. Cahode is still in the transport chamber.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto digitali\DSCN0374.jpg
Digital photo.
Cs2Te coated surface. Cahode is still in the transport chamber.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto scan\11_scan.JPG
Scanned photo.
Cs2Te coated surface. This cathode back from DESY Z and it was used in the gun.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto scan\11a_scan.JPG
Scanned photo.
Cs2Te coated surface.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto scan\11b_scan.JPG
Scanned photo.
Cs2Te coated surface.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2center ci probably copper particles.JPG
Microscope photo: 200x, int. contr.
Burning of Cs2Te coating with Cu particle in the middle.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2center ci  hole and burns.JPG
Microscope photo: 100x, int. contr
Big hole on the Cs2Te coating close to the center of the cathode.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2burns df bis.JPG
Microscope photo: 100x, dark field
Burnings on the Cs2Te coating border and Cs2Te coating exfoliation
O:\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2 border ci copper particles.JPG
Microscope photo: 100x, int. contr
Detail on the cathode border with squeezed Cu.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2 border ci.JPG
Microscope photo: 100x, int. contr
Detail on the cathode border with squeezed Cu.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2burns df.JPG
Microscope photo: 100x, dark field
Burnings on the Cs2Te coating border.
\\2klasa1\Catodi\TESLA\photo database\plug 11\11_2\dopo utilizzo\foto microscopio\11_2center ci probably copper particles bis.JPG
Microscope photo: 100x, int. contr
Exfoliation of Cs2Te near the coating border with Cu particle in the middle.

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Authored by Paolo Pierini, Daniele Sertore, and Laura Monaco LASA, 2002-2009.