DETECTION OF SOFT X-RAYS WITH NEA-III-V PHOTO-CATHODES

被引：8

作者：

BARDAS, D ^{[1
]}

KELLOGG, E ^{[1
]}

MURRAY, S ^{[1
]}

ENCK, R ^{[1
]}

机构：

[1] VARIAN ASSOC,DIV LIGHT SENSING & EMMITTING,PALO ALTO,CA 94303

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1978年 / 49卷 / 09期

关键词：

D O I：

10.1063/1.1135593

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe the experimental energy response of a negative electron affinity (NEA) III-V photocathode to x rays with energies from ∼0.8 to ∼3 keV. Energy resolutions, E/ΔE, from ∼1 to ∼3 are obtained, together with ∼100% quantum efficiency. Theoretical calculations based on an electron diffusion model are shown to be in good agreement with the experimental results. The use of NEA III-V photocathodes as efficient soft x-ray detectors with good energy and spatial resolution is discussed for imaging applications in x-ray astronomy.

引用

页码：1273 / 1278

页数：6

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