Improved Spatial Resolution in Thick, Fully-Depleted CCDs withEnhanced Red Sensitivity

PDF Version Also Available for Download.

Description

The point spread function (PSF) is an important measure ofspatial resolution in CCDs for point-like objects, since it can affectuse in imaging and spectroscopic applications. We present new data andtheoretical developments in the study of lateral charge diffusion inthick, fully-depleted charge-coupled devices (CCDs) developed at LawrenceBerkeley National Laboratory (LBNL). Because they are fully depleted, theLBNL devices have no field-free region, and diffusion can be controlledthrough the application of an external bias voltage. We give results fora 3512x3512 format, 10.5 ?m pixel back-illuminated p-channel CCDdeveloped for the SuperNova/ Acceleration Probe (SNAP), a proposedsatellite-based experiment designed to study dark energy. The PSF ... continued below

Creation Information

Fairfield, Jessamyn A. November 10, 2005.

Context

This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Description

The point spread function (PSF) is an important measure ofspatial resolution in CCDs for point-like objects, since it can affectuse in imaging and spectroscopic applications. We present new data andtheoretical developments in the study of lateral charge diffusion inthick, fully-depleted charge-coupled devices (CCDs) developed at LawrenceBerkeley National Laboratory (LBNL). Because they are fully depleted, theLBNL devices have no field-free region, and diffusion can be controlledthrough the application of an external bias voltage. We give results fora 3512x3512 format, 10.5 ?m pixel back-illuminated p-channel CCDdeveloped for the SuperNova/ Acceleration Probe (SNAP), a proposedsatellite-based experiment designed to study dark energy. The PSF wasmeasured at substrate bias voltages between 3 V and 115 V. At a biasvoltage of 115V, we measure an rms diffusion of 3.7 +- 0.2 ?m. Lateralcharge diffusion in LBNL CCDs is thus expected to meet the SNAPrequirements.

Source

  • IEEE Nuclear Science Symposium and MedicalImaging Conference, Puerto Rico,10/23/2005-10/29/2005

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

  • Report No.: LBNL--59107
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 901815
  • Archival Resource Key: ark:/67531/metadc891184

Collections

This article is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • November 10, 2005

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

Description Last Updated

  • Sept. 29, 2016, 2:53 p.m.

Usage Statistics

When was this article last used?

Congratulations! It looks like you are the first person to view this item online.

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Fairfield, Jessamyn A. Improved Spatial Resolution in Thick, Fully-Depleted CCDs withEnhanced Red Sensitivity, article, November 10, 2005; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc891184/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.