&lt;title&gt;MCP readout for the AXAF-I grating spectrometer&lt;/title&gt;

Kenter, A.; Goddard, Richard E.; Gomes, Joaquim J.; Lessing, Joshua; Murray, Stephen S.; Moore, Randall W.; Roll, Rachel K.; Valenza, M.; Zombeck, Martin V.

doi:10.1117/12.164748

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The LETGS is primarily used in conjunction with the spectroscopic array, the HRC-S. 4 The HRC-S consists of 3 MCPs, with 1513 wires along the dispersion direction (the V -axis) and 121 wires along the cross-dispersion direction (the U -axis) with a wire pitch of 0.2057 mm. An amplifier taps into this crossed grid at every eighth wire, with the result that there are 190 and 16 "taps" along the V and U axes respectively.…”

Section: Introductionmentioning

confidence: 99%

Chandra HRC-S degapping corrections

Kashyap

Drake

Chung

2004

UV and Gamma-Ray Space Telescope Systems

View full text Add to dashboard Cite

The HRC-S is a microchannel plate detector on board Chandra and is primarily used for spectroscopic observations with the Low Energy Transmission Grating Spectrometer (LETGS) in place. Photons are detected via signals read out from evenly spaced wires underneath the plates and positions are computed by centroiding around the strongest amplifier signals. This process leads to gaps in between the taps where no events are placed. A deterministic correction is then made during ground processing to these event locations to remove the gaps. We have now developed a new, empirical degap corrections from flight data. We describe the procedure we use, present comparisons between the new degap and lab-data based degap, and investigate the temporal stability of the degap corrections.

show abstract

Section: Introductionmentioning

confidence: 99%

Chandra HRC-S degapping corrections

Kashyap

Drake

Chung

2004

UV and Gamma-Ray Space Telescope Systems

View full text Add to dashboard Cite

show abstract

“…More in-depth descriptions of the HRC-S and its use for the LETG readout can be found elsewhere. 4,10,11 Focal Plane Layout …”

Section: The High Resolution Camera (Hrc)mentioning

confidence: 99%

<title>In-flight performance and calibration of the Chandra high-resolution camera imager (HRC-I)</title>

et al. 2000

Self Cite

View full text Add to dashboard Cite

The High Resolution Camera (HRC) is one of the two focal plane instruments on the NASA Chandra X-ray Observatory (CXO) which was successfully launched on July 23, 1999. The CXO performs high resolution spectroscopy and imaging in the X-ray band of 0.07 to 10 keV. The HRC instrument consists of two detectors, HRC-I for imaging and HRC-S for spectroscopy. The other focal plane instrument is the Chandra CCD Imaging Spectrometer (ACTS).Each HRC detector consists of a thin aluminized polyimide window, a chevron pair of microchannel plates (MCPs) and a crossed grid charge readout. The HRC..I is an ' 100 x 100 mm detector optimized for high resolution imaging and timing, the HRC-S is an '-20 x 300 mm detector optimized to function as the readout for the Low Energy Transmission Grating (LETG).In this paper we present and compare flight results with the latest results of the ground calibration for the HRC-I detector. In particular we will compare ground and in flight data on detector background, effective area, quantum efficiency and point spread response function.The development of the HRC is a collaborative effort between The Smithsonian Astrophysical Observatory,

show abstract

“…'Y 'YM'''-'IJ[6] Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx 'Y 'YM'''-'IJ[6] Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx…”

mentioning

confidence: 99%

<title>Calibration program for the Advanced X-ray Astrophysics Facility (AXAF) high-resolution camera</title>

Flanagan

Barbera²,

Murray

et al. 1994

SPIE Proceedings

Self Cite

View full text Add to dashboard Cite

The High Resolution Camera, or HRC, is a set of microchannel plate based detectors designed to fly aboard the Advanced X-Ray Astrophysics Facility (AXAF), a major NASA space observatory. It will undergo a series of calibration tests before launch in September 1998. The overall calibration is planned in three phases: tests performed before delivery, end-to-end testing at Marshall Space Flight Center, and post launch calibration observations. In this paper, we examine the planned calibration program for the HRC, focusing on laboratory and synchrotron tests to be made before delivery.

show abstract

<title>MCP readout for the AXAF-I grating spectrometer</title>

Cited by 3 publications

References 0 publications

Chandra HRC-S degapping corrections

Chandra HRC-S degapping corrections

<title>In-flight performance and calibration of the Chandra high-resolution camera imager (HRC-I)</title>

<title>Calibration program for the Advanced X-ray Astrophysics Facility (AXAF) high-resolution camera</title>

Contact Info

Product

Resources

About