In-orbit performance of the EPIC-MOS detectors on XMM-Newton

Sembay, S.; Abbey, A. F.; Altiéri, B.; Ambrosi, Richard M.; Baskill, Darren; Ferrando, P.; Mukerjee, K.; Read, A. M.; Turner, Martin

doi:10.1117/12.553180

Cited by 11 publications

(7 citation statements)

References 15 publications

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“…An anomaly in the MOS2 spectral data below ∼ 0.8 keV, which probably is related to the MOS redistribution problem in which events from higher energies incorrectly are redistributed downwards (cf. Sembay et al 2004), required exclusion of those MOS2 spectral bins from the analysis.…”

Section: Psr B1929+10mentioning

confidence: 99%

A Multiwavelength Study of the Pulsar PSR B1929+10 and Its X‐Ray Trail

Becker

Krämer

Jessner

et al. 2006

ApJ

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Section: Psr B1929+10mentioning

confidence: 99%

A Multiwavelength Study of the Pulsar PSR B1929+10 and Its X‐Ray Trail

Becker

Krämer

Jessner

et al. 2006

ApJ

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“…The temperature dependence of the CTI of the damaged CCDs varies device to device [15,16]. Therefore, the understating of the temperature dependence allows us a flexible operation in space where the power available is quite limited.…”

Section: Discussionmentioning

confidence: 99%

“…Lowering operating temperature of CCDs also reduced the CTI in the case of the Chandra and XMM-Newton CCDs [15,16].…”

Section: Introductionmentioning

confidence: 96%

Proton radiation damage experiment on P-Channel CCD for an X-ray CCD camera onboard the ASTRO-H satellite

Mori

Nishioka

Ohura

et al. 2013

Nuclear Instruments and Methods in Physics Research Section A:

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24We report on a proton radiation damage experiment on P-channel CCD newly developed for an X-ray CCD camera onboard the Astro-H satellite.The device was exposed up to 10 9 protons cm −2 at 6.7 MeV. The charge transfer inefficiency (CTI) was measured as a function of radiation dose. In comparison with the CTI currently measured in the CCD camera onboard the Suzaku satellite for 6 years, we confirmed that the new type of P-channelPreprint submitted to Nuclear Physics B June 25, 2013 CCD is radiation tolerant enough for space use. We also confirmed that a charge-injection technique and lowering the operating temperature efficiently work to reduce the CTI for our device. A comparison with other P-channel CCD experiments is also discussed.

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“…Therefore, the charge transfer inefficiency (CTI), the fraction of charge loss per transfer, is an important measure in evaluating CCDs. In addition to trap populations and densities, the CTI generally depends on several operation parameters: transfer time [3], operating temperature [4,5,6], amount of transfer charge [7,8,9], and the existence of "sacrificial charge" [10,11,12,13,14,15]. In the case of a photoncounting X-ray CCD, which serves as a spectrometer as well as an imager, the charge loss during transfer results in misidentification of an incident photon energy.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on the charge transfer inefficiency of CCD developed for the soft X-ray imaging telescope Xtend aboard the XRISM satellite

Kanemaru,

Sato,

Takaki

et al. 2020

Preprint

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We present experimental studies on the charge transfer inefficiency (CTI) of charge-coupled device (CCD) developed for the soft X-ray imaging telescope, Xtend, aboard the XRISM satellite. The CCD is equipped with a charge injection (CI) capability, in which sacrificial charge is periodically injected to fill the charge traps. By evaluating the re-emission of the trapped charge observed behind the CI rows, we find that there are at least three trap populations with different time constants. The traps with the shortest time constant, which is equivalent to a transfer time of approximately one pixel, are mainly responsible for the trailing charge of an X-ray event seen in the following pixel. A comparison of the trailing charge in two clocking modes reveals that the CTI depends not only on the transfer time but also on the area, namely the imaging or storage area. We construct a new CTI model by taking into account both transfer-time and area dependence. This model reproduces the data obtained in both clocking modes consistently. We also examine apparent flux dependence of the CTI observed without the CI technique. The higher incident X-ray flux is, the lower the CTI value becomes. It is due to a sacrificial charge effect by another X-ray photon. This effect is found to be negligible when the CI technique is used.

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In-orbit performance of the EPIC-MOS detectors on XMM-Newton

Cited by 11 publications

References 15 publications

A Multiwavelength Study of the Pulsar PSR B1929+10 and Its X‐Ray Trail

A Multiwavelength Study of the Pulsar PSR B1929+10 and Its X‐Ray Trail

Proton radiation damage experiment on P-Channel CCD for an X-ray CCD camera onboard the ASTRO-H satellite

Experimental studies on the charge transfer inefficiency of CCD developed for the soft X-ray imaging telescope Xtend aboard the XRISM satellite

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