ICALEPCS2013 - List of Authors (Korolczuk, S.)

Paper

Title

Page

MTCA Upgrade of the Readout Electronics for the Bunch Arrival Time Monitor at FLASH

1380

J. Szewiński, G. Boltruczyk, S. Korolczuk
NCBJ, Świerk/Otwock, Poland
S. Bou Habib, J. Dobosz, D. Sikora
Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
C. Gerth, H. Schlarb
DESY, Hamburg, Germany

Bunch Arrival time Monitor (BAM) is an electro-optical device used at FLASH accelerator in DESY for the high precision, femtosecond scale, measurements of the moment when electron bunch arrives at the reference point in the machine. The arrival time is proportional to the average bunch energy, and is used to calculate the amplitude correction for RF field control. Correction is sent to the LLRF system in less than 10 us, and this creates a secondary feedback loop (over the regular LLRF one), which is focused on beam energy stabilization - beam feedback. This paper presents new uTCA BAM readout electronics design based on the uTCA.4 – “uTCA for Physics” and FMC mezzanine boards standards. Presented solution is a replacement for existing, VME based BAM readout devices. It provides higher efficiency by using new measurement techniques, better components (such as ADCs, FPGAs etc.), and high bandwidth uTCA backplane. uTCA provides also different topology for data transfers in the crate, which all together opens new opportunities for the improvement of the overall system performance.

Poster THPPC140 [14.281 MB]

Paper	Title	Page
THPPC140	MTCA Upgrade of the Readout Electronics for the Bunch Arrival Time Monitor at FLASH	1380
	J. Szewiński, G. Boltruczyk, S. Korolczuk NCBJ, Świerk/Otwock, Poland S. Bou Habib, J. Dobosz, D. Sikora Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland C. Gerth, H. Schlarb DESY, Hamburg, Germany
	Bunch Arrival time Monitor (BAM) is an electro-optical device used at FLASH accelerator in DESY for the high precision, femtosecond scale, measurements of the moment when electron bunch arrives at the reference point in the machine. The arrival time is proportional to the average bunch energy, and is used to calculate the amplitude correction for RF field control. Correction is sent to the LLRF system in less than 10 us, and this creates a secondary feedback loop (over the regular LLRF one), which is focused on beam energy stabilization - beam feedback. This paper presents new uTCA BAM readout electronics design based on the uTCA.4 – “uTCA for Physics” and FMC mezzanine boards standards. Presented solution is a replacement for existing, VME based BAM readout devices. It provides higher efficiency by using new measurement techniques, better components (such as ADCs, FPGAs etc.), and high bandwidth uTCA backplane. uTCA provides also different topology for data transfers in the crate, which all together opens new opportunities for the improvement of the overall system performance.
	Poster THPPC140 [14.281 MB]