Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)

L. Alha; J. Huovelin; K. Nygard; H. Andersson; E. Esko; C. J. Howe; B. J. Kellett; S. Narendranath; B. J. Maddison; I. A. Crawford; M. Grande; P. Shreekumar

doi:10.1016/j.nima.2009.06.049

Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)

L. Alha, J. Huovelin, K. Nygard, H. Andersson, E. Esko, C. J. Howe, B. J. Kellett, S. Narendranath, B. J. Maddison, I. A. Crawford, M. Grande, P. Shreekumar

Department of Physics

Research output: Contribution to journal › Article

17 Citations (Scopus)

Abstract

The Chandrayaan-1 XSM ground calibrations are introduced. The aim of these calibrations was to characterize the performance of XSM, which enables a reliable spectral analysis with the solar X-ray data. The calibrations followed an improved procedure based on our experience from the SMART-1 XSM. The most important tasks in the calibrations were determination of the energy resolution as a function of the photon energy and mapping of the detector sensitivity over the FoV (Field of View) of the sensor. The FoV map was needed to determine the obscuration factor corresponding to various pointings with respect to the Sun. We made also a sensitivity comparison test between the Chandrayaan-1 XSM FM (Flight Model) and SMART-1 XSM FS (Flight Spare). The aim of this test was to link the new XSM performance to a performance of an already known and tested former instrument. We also performed a simple test to determine the pile up performance, and one specific test tailored for the operation of the new version of XSM. Also the first experiences on the in-flight operation are briefly described.

Original language	English
Article number	A07106
Pages (from-to)	544-553
Number of pages	10
Journal	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	607
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2009.06.049
Publication status	Published - 21 Aug 2009

Keywords

X-ray detectors
Calibration

Access to Document

10.1016/j.nima.2009.06.049

Permanent link

Persistent link

Cite this

Alha, L., Huovelin, J., Nygard, K., Andersson, H., Esko, E., Howe, C. J., Kellett, B. J., Narendranath, S., Maddison, B. J., Crawford, I. A., Grande, M., & Shreekumar, P. (2009). Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM). Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 607(3), 544-553. Article A07106. https://doi.org/10.1016/j.nima.2009.06.049

@article{4884f2805b9e49bbbfedae06863ed7c0,

title = "Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)",

abstract = "The Chandrayaan-1 XSM ground calibrations are introduced. The aim of these calibrations was to characterize the performance of XSM, which enables a reliable spectral analysis with the solar X-ray data. The calibrations followed an improved procedure based on our experience from the SMART-1 XSM. The most important tasks in the calibrations were determination of the energy resolution as a function of the photon energy and mapping of the detector sensitivity over the FoV (Field of View) of the sensor. The FoV map was needed to determine the obscuration factor corresponding to various pointings with respect to the Sun. We made also a sensitivity comparison test between the Chandrayaan-1 XSM FM (Flight Model) and SMART-1 XSM FS (Flight Spare). The aim of this test was to link the new XSM performance to a performance of an already known and tested former instrument. We also performed a simple test to determine the pile up performance, and one specific test tailored for the operation of the new version of XSM. Also the first experiences on the in-flight operation are briefly described.",

keywords = "X-ray detectors, Calibration",

author = "L. Alha and J. Huovelin and K. Nygard and H. Andersson and E. Esko and Howe, {C. J.} and Kellett, {B. J.} and S. Narendranath and Maddison, {B. J.} and Crawford, {I. A.} and M. Grande and P. Shreekumar",

year = "2009",

month = aug,

day = "21",

doi = "10.1016/j.nima.2009.06.049",

language = "English",

volume = "607",

pages = "544--553",

journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

number = "3",

}

Alha, L, Huovelin, J, Nygard, K, Andersson, H, Esko, E, Howe, CJ, Kellett, BJ, Narendranath, S, Maddison, BJ, Crawford, IA, Grande, M & Shreekumar, P 2009, 'Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 607, no. 3, A07106, pp. 544-553. https://doi.org/10.1016/j.nima.2009.06.049

TY - JOUR

T1 - Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)

AU - Alha, L.

AU - Huovelin, J.

AU - Nygard, K.

AU - Andersson, H.

AU - Esko, E.

AU - Howe, C. J.

AU - Kellett, B. J.

AU - Narendranath, S.

AU - Maddison, B. J.

AU - Crawford, I. A.

AU - Grande, M.

AU - Shreekumar, P.

PY - 2009/8/21

Y1 - 2009/8/21

N2 - The Chandrayaan-1 XSM ground calibrations are introduced. The aim of these calibrations was to characterize the performance of XSM, which enables a reliable spectral analysis with the solar X-ray data. The calibrations followed an improved procedure based on our experience from the SMART-1 XSM. The most important tasks in the calibrations were determination of the energy resolution as a function of the photon energy and mapping of the detector sensitivity over the FoV (Field of View) of the sensor. The FoV map was needed to determine the obscuration factor corresponding to various pointings with respect to the Sun. We made also a sensitivity comparison test between the Chandrayaan-1 XSM FM (Flight Model) and SMART-1 XSM FS (Flight Spare). The aim of this test was to link the new XSM performance to a performance of an already known and tested former instrument. We also performed a simple test to determine the pile up performance, and one specific test tailored for the operation of the new version of XSM. Also the first experiences on the in-flight operation are briefly described.

AB - The Chandrayaan-1 XSM ground calibrations are introduced. The aim of these calibrations was to characterize the performance of XSM, which enables a reliable spectral analysis with the solar X-ray data. The calibrations followed an improved procedure based on our experience from the SMART-1 XSM. The most important tasks in the calibrations were determination of the energy resolution as a function of the photon energy and mapping of the detector sensitivity over the FoV (Field of View) of the sensor. The FoV map was needed to determine the obscuration factor corresponding to various pointings with respect to the Sun. We made also a sensitivity comparison test between the Chandrayaan-1 XSM FM (Flight Model) and SMART-1 XSM FS (Flight Spare). The aim of this test was to link the new XSM performance to a performance of an already known and tested former instrument. We also performed a simple test to determine the pile up performance, and one specific test tailored for the operation of the new version of XSM. Also the first experiences on the in-flight operation are briefly described.

KW - X-ray detectors

KW - Calibration

UR - http://hdl.handle.net/2160/8338

U2 - 10.1016/j.nima.2009.06.049

DO - 10.1016/j.nima.2009.06.049

M3 - Article

SN - 0168-9002

VL - 607

SP - 544

EP - 553

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 3

M1 - A07106

ER -

Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)

Abstract

Keywords

Access to Document

Permanent link

Other files and links

Fingerprint

Cite this