Abstract
The Gravity and Extreme Magnetism Small Explorer (GEMS) will realize its scientific objectives through high sensitivity linear X-ray polarization measurements in the 2-10 keV band. The GEMS X-ray polarimeters, based on the photoelectric effect, provide a strong polarization response with high quantum efficiency over a broad band-pass by a novel implementation of the time projection chamber (TPC). This paper will discuss the basic principles of the TPC polarimeter and describe the details of the mechanical and electrical design of the GEMS flight polarimeter. We will present performance measurements from two GEMS engineering test units in response to polarized and unpolarized X-rays and before and after thermal and vibration tests performed to demonstrate that the design is at a technology readiness level 6 (TRL-6).
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 8443 |
| DOIs | |
| State | Published - 2012 |
| Externally published | Yes |
| Event | Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam, Netherlands Duration: Jul 1 2012 → Jul 6 2012 |
Other
| Other | Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray |
|---|---|
| Country | Netherlands |
| City | Amsterdam |
| Period | 7/1/12 → 7/6/12 |
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Keywords
- Di-methyl Ether
- Gas Electron Multiplier
- GEM
- Gravity and Extreme Magnetism SMEX
- Time-projection Chamber Polarimeter
- X-ray Polarization
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
The design and qualification of the GEMS X-ray polarimeters. / Hill, J. E.; Bakera, R. G.; Blacka, J. K.; Brownea, M. J.; Baumgartner, W. H.; E.M. Caldwell, Caldwell; Cantwell, J. D.; Davies, A.; Desai, A. B.; Dickens, P. L.; Dobson, N. K.; Foxwell, R. L.; Francomacaro, A. S.; Gall, D.; Gregory, K. J.; Griffiths, S.; Hayato, A.; Hampshire, R. O.; Hwang, T.; Jhabvala, M. D.; Jahoda, K.; Kaaret, P.; Lehtonen, S. J.; Martin, N. F.; Mohammed, J. S.; De Garcia, K. Montt; Morell, A.; Nolan, David S; Russell, R. E.; Sampson, M. A.; Sanders, J. A.; Simms, K.; Singer, M. J.; Swank, J. H.; Tamagawa, T.; Weaver, A.; Yerushalmi, S. N.; Xu, J. J.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8443 2012. 84431Q.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - The design and qualification of the GEMS X-ray polarimeters
AU - Hill, J. E.
AU - Bakera, R. G.
AU - Blacka, J. K.
AU - Brownea, M. J.
AU - Baumgartner, W. H.
AU - E.M. Caldwell, Caldwell
AU - Cantwell, J. D.
AU - Davies, A.
AU - Desai, A. B.
AU - Dickens, P. L.
AU - Dobson, N. K.
AU - Foxwell, R. L.
AU - Francomacaro, A. S.
AU - Gall, D.
AU - Gregory, K. J.
AU - Griffiths, S.
AU - Hayato, A.
AU - Hampshire, R. O.
AU - Hwang, T.
AU - Jhabvala, M. D.
AU - Jahoda, K.
AU - Kaaret, P.
AU - Lehtonen, S. J.
AU - Martin, N. F.
AU - Mohammed, J. S.
AU - De Garcia, K. Montt
AU - Morell, A.
AU - Nolan, David S
AU - Russell, R. E.
AU - Sampson, M. A.
AU - Sanders, J. A.
AU - Simms, K.
AU - Singer, M. J.
AU - Swank, J. H.
AU - Tamagawa, T.
AU - Weaver, A.
AU - Yerushalmi, S. N.
AU - Xu, J. J.
PY - 2012
Y1 - 2012
N2 - The Gravity and Extreme Magnetism Small Explorer (GEMS) will realize its scientific objectives through high sensitivity linear X-ray polarization measurements in the 2-10 keV band. The GEMS X-ray polarimeters, based on the photoelectric effect, provide a strong polarization response with high quantum efficiency over a broad band-pass by a novel implementation of the time projection chamber (TPC). This paper will discuss the basic principles of the TPC polarimeter and describe the details of the mechanical and electrical design of the GEMS flight polarimeter. We will present performance measurements from two GEMS engineering test units in response to polarized and unpolarized X-rays and before and after thermal and vibration tests performed to demonstrate that the design is at a technology readiness level 6 (TRL-6).
AB - The Gravity and Extreme Magnetism Small Explorer (GEMS) will realize its scientific objectives through high sensitivity linear X-ray polarization measurements in the 2-10 keV band. The GEMS X-ray polarimeters, based on the photoelectric effect, provide a strong polarization response with high quantum efficiency over a broad band-pass by a novel implementation of the time projection chamber (TPC). This paper will discuss the basic principles of the TPC polarimeter and describe the details of the mechanical and electrical design of the GEMS flight polarimeter. We will present performance measurements from two GEMS engineering test units in response to polarized and unpolarized X-rays and before and after thermal and vibration tests performed to demonstrate that the design is at a technology readiness level 6 (TRL-6).
KW - Di-methyl Ether
KW - Gas Electron Multiplier
KW - GEM
KW - Gravity and Extreme Magnetism SMEX
KW - Time-projection Chamber Polarimeter
KW - X-ray Polarization
UR - http://www.scopus.com/inward/record.url?scp=84871748307&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871748307&partnerID=8YFLogxK
U2 - 10.1117/12.928435
DO - 10.1117/12.928435
M3 - Conference contribution
AN - SCOPUS:84871748307
SN - 9780819491442
VL - 8443
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -