TiCkS: A Flexible White-Rabbit Based Time-Stamping Board

Champion, C.; Punch, M.; Oger, R.; Colonges, S.; Moudden, Y.

doi:10.18429/jacow-icalepcs2017-tupha090

Cited by 3 publications

(5 citation statements)

References 1 publication

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“…The UCTS module contains primarily a timing and clock stamping (TiCkS) board [16], a node of a White Rabbit timing system [17], in order to provide an absolute time-stamp for the camera triggers. The White Rabbit system, developed initially at CERN, is an "Open Hardware" development for subnanosecond accuracy time-transfer, along with data transfer, by extending Synchronous ethernet with PTP (Precision Time Protocol) [18].…”

Section: Camera Absolute Time-stamping Systemmentioning

confidence: 99%

“…generated by the laser source. Since the measurement is performed in internal trigger mode 16 , the ∆t TOM calculation already takes into account the difference in distances travelled by the light before reaching any two pixels pair in the whole camera, no matter the position of the pixels in the camera. This is because the laser light source which has travel time differences between pixels is also used to perform the L1A calibration.…”

Section: Global Camera Timing Precisionmentioning

confidence: 99%

“…The camera events are timestamped in the TiCkS board of the UCTS module. The timestamp will then be used by the 16 The internal trigger mode is the standard trigger for cosmic data taking. CTA central trigger process to correlate the triggers of the different telescopes of the CTA array.…”

Section: Camera Trigger Timing Accuracymentioning

confidence: 99%

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The NectarCAM timing system

Rueda

Barrio

et al. 2023

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Camera Absolute Time-stamping Systemmentioning

confidence: 99%

Section: Global Camera Timing Precisionmentioning

confidence: 99%

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The NectarCAM timing system

Rueda

Barrio

et al. 2023

Nuclear Instruments and Methods in Physics Research Section A:

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“…The UCTS module contains primarily a timing and clock stamping (TiCkS) board [13], a node of a White Rabbit timing system [14], in order to give an absolute time-stamp for the camera triggers. The White Rabbit system, developed initially at CERN, is an "Open Hardware" development for subnanosecond accuracy time-transfer, along with data transfer, by extending Synchronous ethernet with PTP (Precision Time Protocol).…”

Section: Camera Absolute Time-stamping Systemmentioning

confidence: 99%

The NectarCAM Timing System

Bradascio,

Rueda,

Barrio

et al. 2023

Preprint

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NectarCAM is a Cherenkov camera which is going to equip the Medium-Sized Telescopes (MST) of the northern site of the Cherenkov Telescope Array Observatory (CTAO). NectarCAM is equipped with 265 modules, each consisting of 7 photo-multiplier tubes (PMTs), a Front-End Board and a local camera trigger system used for data acquisition. This paper addresses the timing performances of NectarCAM which are crucial to reduce the noise in shower images and improve image cleaning as well as to discriminate between gamma-ray photons and cosmic-ray background and finally to allow coincidence identification with neighbouring telescopes for stereoscopic operations. Verification tests of the system have been performed in a dark room using various light sources to illuminate the first NectarCAM unit. The resulting timing precision and accuracy of the trigger arrival relative to a laser source, of individual and multiple pixel signals have been studied and are shown to comply to CTAO requirements.

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“…The clock and the PPS signals are delivered from the UCTS to the TIB continuously via an RJ45 interface, and the TIB controls when they should be delivered to the TCDS depending on the camera state. In addition, the UCTS timestamps the camera trigger signals delivered by the TIB, also with nanosecond accuracy [16,17]. Besides providing the camera triggers, the TIB assigns a bitmask encoding the actual trigger source (mono, stereo, calibration, pedestal, etc.…”

Section: The Tib In the Cameramentioning

confidence: 99%