An automated system to measure the quantum efficiency of CCDs for astronomy

Journal Article · Tue Apr 18 00:00:00 EDT 2017 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/12/04/C04014· OSTI ID:1361243

Coles, R. ^[1]; Chiang, J. ^[2]; Cinabro, D. ^[3]; Haupt, J. ^[1]; Neal, H. ^[2]; Nomerotski, A. ^[1]; Takacs, P. ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)
2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
3. Wayne State Univ., Detroit, MI (United States). Dept. of Physics

We describe a system to measure the Quantum Efficiency in the wavelength range of 300 nm to 1100 nm of 40 × 40 mm n-channel CCD sensors for the construction of the 3.2 gigapixel LSST focal plane. The technique uses a series of instrument to create a very uniform flux of photons of controllable intensity in the wavelength range of interest across the face the sensor. This allows the absolute Quantum Efficiency to be measured with an accuracy in the 1% range. Finally, this system will be part of a production facility at Brookhaven National Lab for the basic component of the LSST camera.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE; USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• Grant/Contract Number: AC02-76SF00515; SC0012704
• OSTI ID: 1361243
• Alternate ID(s): OSTI ID: 22681981; OSTI ID: 1373199
• Report Number(s): BNL--113862-2017-JA
• Journal Information: Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 04 Vol. 12; ISSN 1748-0221
• Publisher: Institute of Physics (IOP)
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Instrument optimisation
Photon detectors for UV
visible and IR photons (solid-state) (PIN diodes
APDs
Si-PMTs
G-APDs
CCDs
EBCCDs
EMCCDs etc)