THERMAL CALORIMETERS FOR HIGH-RESOLUTION X-RAY SPECTROSCOPY

被引:62
作者
MCCAMMON, D [1 ]
CUI, W [1 ]
JUDA, M [1 ]
MORGENTHALER, J [1 ]
ZHANG, J [1 ]
KELLEY, RL [1 ]
HOLT, SS [1 ]
MADEJSKI, GM [1 ]
MOSELEY, SH [1 ]
SZYMKOWIAK, AE [1 ]
机构
[1] NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771
关键词
D O I
10.1016/0168-9002(93)90346-J
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Thermal detection of individual X-ray photons by small (0.5 x 0.5 mm) calorimeters has been used to achieve an energy resolution as good as 7.5 eV FWHM for 6 keV X-rays. Such detectors should have interesting applications in X-ray astronomy as well as laboratory spectroscopy, and they promise a high tolerance for embedded sources. Ideally, it should be possible to improve the resolution greatly by making smaller detectors or operating them at lower temperatures than the 50-100 mK currently used. However, there appear to be fairly fundamental limitations when semiconductor thermistors are used as the thermometer. When trying to achieve energy resolution of 0.1% or better, fluctuations in the thermalization efficiency of the detector must also be considered, and this places additional restrictions on suitable detector materials.
引用
收藏
页码:157 / 165
页数:9
相关论文
共 17 条
  • [11] NIINIKOSKI TO, 1975, LIQUID SOLID HELIUM, P145
  • [12] REIF F, 1965, FUNDAMENTALS STATIST, P213
  • [13] SADOULET B, 1988, IEEE T NUCL SCI, V36, P543
  • [14] THEORY OF 1-F NOISE FOR HOPPING CONDUCTION
    SHKLOVSKII, BI
    [J]. SOLID STATE COMMUNICATIONS, 1980, 33 (03) : 273 - 276
  • [15] A NEW MICROCALORIMETER CONCEPT FOR PHOTON-COUNTING X-RAY SPECTROSCOPY
    SILVER, EH
    LABOV, SE
    GOULDING, F
    MADDEN, N
    LANDIS, D
    BEEMAN, J
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 277 (2-3) : 657 - 663
  • [16] SIMON F, 1935, NATURE, V135, P673
  • [17] STAHLE CK, 1991, THESIS STANFORD U