Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
25
pubmed:dateCreated
2002-9-4
pubmed:abstractText
A hard-x-ray telescope is successfully produced for balloon observations by making use of depth-graded multilayers, or so-called supermirrors, with platinum-carbon (Pt/C) layer pairs. It consists of four quadrant units assembled in an optical configuration with a diameter of 40 cm and a focal length of 8 m. Each quadrant is made of 510 pieces of coaxially and confocally aligned supermirrors that significantly enhance the sensitivity in an energy range of 20-40 keV. The configuration of the telescope is similar to the x-ray telescope onboard Astro-E, but with a longer focal length. The reflectivity of supermirrors is of the order of 40% in the energy range concerned at a grazing angle of 0.2 deg. The effective area of a fully assembled telescope is 50 cm2 at 30 keV. The angular resolution is 2.37 arc min at half-power diameter 8.0 keV. The field of view is 12.6 arc min in the hard-x-ray region, depending somewhat on x-ray energies. We discuss these characteristics, taking into account the figure errors of reflectors and their optical alignment in the telescope assembly. This hard-x-ray telescope is unanimously afforded in the International Focusing Optics Collaboration for muCrab Sensitivity balloon experiment.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Sep
pubmed:issn
0003-6935
pubmed:author
pubmed-author:AkimotoFumieF, pubmed-author:BerendseFred BFB, pubmed-author:ChanKai-WingKW, pubmed-author:FukudaShin'ichiS, pubmed-author:FuruzawaAkihiroA, pubmed-author:GotoArifumiA, pubmed-author:HabaYoshitoY, pubmed-author:HagaKazutoshiK, pubmed-author:HamadaNoriyukiN, pubmed-author:HudaverdiMuratM, pubmed-author:IchimaruSatoshiS, pubmed-author:ItohKeiK, pubmed-author:KamataYuichiY, pubmed-author:KatoSeimaS, pubmed-author:KitoHideoH, pubmed-author:KondoKazumasaK, pubmed-author:KuniedaHideyoH, pubmed-author:MisakiKazutamiK, pubmed-author:MoriHideyukiH, pubmed-author:NambaYoshiharuY, pubmed-author:NomotoKentaroK, pubmed-author:OgasakaYasushiY, pubmed-author:OkajimaTakashiT, pubmed-author:OwensScott MSM, pubmed-author:SatakeHiroyukiH, pubmed-author:SerlemitsosPeter JPJ, pubmed-author:ShibataRyoR, pubmed-author:SoongYangY, pubmed-author:TakahashiSeijiS, pubmed-author:TamuraKeisukeK, pubmed-author:TanakaTakeshiT, pubmed-author:TawaraYuzuruY, pubmed-author:TuellerJackJ, pubmed-author:WadaKeiichiK, pubmed-author:YamashitaKoujunK, pubmed-author:YoshiokaTsutomuT
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5417-26
pubmed:dateRevised
2003-11-3
pubmed:year
2002
pubmed:articleTitle
Characterization of the supermirror hard-x-ray telescope for the InFOCmuS balloon experiment.
pubmed:affiliation
Department of Physics, Nagoya University, Japan. okajima@u.phys.nagoya-u.ac.jp
pubmed:publicationType
Journal Article