English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

An optical transceiver prototype for the future ATLAS pixel inner-b-layer (IBL) project housing a GaAs PiN-diode array coupled to a BPM-signal decoding ASIC, was exposed to 24 GeV/c proton beam. The 40 MHz clock and 40 Mbit/s data supplied optically to the transceiver board were restored directly on the board and transmitted back to the counting room for on-line checking of consistency. In the case of a data bit error or a missing clock state transition, indicating an occurrence of a SEU, a sequence of time aligned data bits along with the corresponding clock states were recorded for off-line analyses (Table 1). A compact DAQ system based on a FPGA processor was custom-developed for this task. We present results obtained from the 2009 measurement at the CERN irradiation facility, for input signals covering a certain range of optical power. The dependence of the SEU cross-section on the input optical amplitude is discussed in detail for various time-resolved conditions of transmitted data bits and recovered clock states. Table 1: Typical measured SEU incidents: 1) type-D (data), 2) type-C (clock) and 3), 4) type-B (both data and clock). A ‘+’ and ‘-’ indicate 0 →1 and 1→ 0 bit-flip errors respectively.

Time resolved studies of Single Event Upset in optical data receiver for the ATLAS pixel detector