Abstract
We report the performance of a bolometric system designed to measure the anisotropy of the cosmic microwave background (CMB) radiation on angular scales from 0:°3 to 3°. The system represents a collaborative effort combining a low-background l m diameter balloon-borne telescope with new multimode feed optics, a beam modulation mechanism with high stability, and a four-channel bolometric receiver with passbands centered near frequencies of 3 (90), 6 (180), 9 (270), and 12 (360) cm-1 (GHz). The telescope has been flown three times with the bolometric receiver and has demonstrated detector noise limited performance capable of reaching sensitivity levels of ΔT/TCMB ≈ 10-5 with detectors operated at T = 0.3 K.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 242-252 |
| Number of pages | 11 |
| Journal | Astrophysical Journal |
| Volume | 388 |
| Issue number | 2 |
| State | Published - Apr 1 1992 |
| Externally published | Yes |
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Keywords
- Cosmic microwave background
- Instrumentation: photometers
ASJC Scopus subject areas
- Space and Planetary Science
- Nuclear and High Energy Physics
Cite this
A bolometric millimeter-wave system for observations of anisotropy in the cosmic microwave background radiation on medium angular scales. / Fischer, M. L.; Alsop, D. C.; Cheng, E. S.; Clapp, A. C.; Cottingham, D. A.; Gundersen, Joshua; Koch, T. C.; Kreysa, E.; Meinhold, P. R.; Lange, A. E.; Lubin, P. M.; Richards, P. L.; Smoot, G. F.
In: Astrophysical Journal, Vol. 388, No. 2, 01.04.1992, p. 242-252.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A bolometric millimeter-wave system for observations of anisotropy in the cosmic microwave background radiation on medium angular scales
AU - Fischer, M. L.
AU - Alsop, D. C.
AU - Cheng, E. S.
AU - Clapp, A. C.
AU - Cottingham, D. A.
AU - Gundersen, Joshua
AU - Koch, T. C.
AU - Kreysa, E.
AU - Meinhold, P. R.
AU - Lange, A. E.
AU - Lubin, P. M.
AU - Richards, P. L.
AU - Smoot, G. F.
PY - 1992/4/1
Y1 - 1992/4/1
N2 - We report the performance of a bolometric system designed to measure the anisotropy of the cosmic microwave background (CMB) radiation on angular scales from 0:°3 to 3°. The system represents a collaborative effort combining a low-background l m diameter balloon-borne telescope with new multimode feed optics, a beam modulation mechanism with high stability, and a four-channel bolometric receiver with passbands centered near frequencies of 3 (90), 6 (180), 9 (270), and 12 (360) cm-1 (GHz). The telescope has been flown three times with the bolometric receiver and has demonstrated detector noise limited performance capable of reaching sensitivity levels of ΔT/TCMB ≈ 10-5 with detectors operated at T = 0.3 K.
AB - We report the performance of a bolometric system designed to measure the anisotropy of the cosmic microwave background (CMB) radiation on angular scales from 0:°3 to 3°. The system represents a collaborative effort combining a low-background l m diameter balloon-borne telescope with new multimode feed optics, a beam modulation mechanism with high stability, and a four-channel bolometric receiver with passbands centered near frequencies of 3 (90), 6 (180), 9 (270), and 12 (360) cm-1 (GHz). The telescope has been flown three times with the bolometric receiver and has demonstrated detector noise limited performance capable of reaching sensitivity levels of ΔT/TCMB ≈ 10-5 with detectors operated at T = 0.3 K.
KW - Cosmic microwave background
KW - Instrumentation: photometers
UR - http://www.scopus.com/inward/record.url?scp=0001181933&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001181933&partnerID=8YFLogxK
M3 - Article
VL - 388
SP - 242
EP - 252
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
ER -