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LCLS Detector Development Plans. John Arthur. The Problem. LCLS experiments are expensive and pulsed Data comes all at once Want to collect all the data Current x-ray area detectors are not good enough Too slow, too noisy, etc Getting money for detector development is hard.
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LCLS Detector Development Plans John Arthur
The Problem • LCLS experiments are expensive and pulsed • Data comes all at once • Want to collect all the data • Current x-ray area detectors are not good enough • Too slow, too noisy, etc • Getting money for detector development is hard
How can the LCLS project help? • Use project funding for some detector development • PIXEL project can also fund detector development
The Plan • LCLS project has allocated about $3.5M for development of a prototype 2-d x-ray detector • PIXEL project intends to fund detector development at a comparable level
Recent Developments • LCLS Detector Advisory Committee formed • LCLS and PIXEL agree to coordinate, specify detectors for specific experiments
Detector Advisory Committee • Gareth Derbyshire (Rutherford Appleton), chair • Yoshiyuki Amemiya (Univ. Tokyo) • Eric Eikenberry (PSI) • Erik Heijne (CERN) • Lothar Strueder (Univ. Munich) • Albert Walenta (Univ. Siegen)
Detector Development within PIXEL • PIXEL anticipates funding a 2-d detector • Groups that proposed detector development to the LCLS SAC were invited to submit expanded proposals to the LDAC last winter • LDAC met in February to discuss the proposals • Based on LDAC report, PIXEL plans to initiate a collaboration with BNL to develop a 2-d detector in the 2005-2008 time frame
The LDAC and LCLS • LCLS asked LDAC to also consider the proposed 2-d detector collaboration with Cornell • Based on their report, LCLS will continue with the Cornell collaboration, and also initiate a collaboration with LBNL to develop a fast x-ray streak camera
Two technologies • Cornell detector • Si diode pixel array detector • Detector array is bump-bonded to individual electronics for each pixel • BNL detector • Si diode array with transistor gating • Read out row by row to electronics • Wire bonding between detector and electronics
Other detectors in LCLS • Several less ambitious projects • Streak camera (LBNL) • Beam imaging cameras (LLNL) • Intensity monitors (LLNL)
Summary • LCLS and PIXEL will fund parallel efforts to develop high-performance 2-d x-ray detectors, using different technologies • LCLS will also fund less ambitious detector development projects • Streak camera • Beam imaging cameras • LDAC will continue to provide guidance