首页   按字顺浏览 期刊浏览 卷期浏览 A new multichannel soft x‐ray framing camera for fusion experiments
A new multichannel soft x‐ray framing camera for fusion experiments

 

作者: F. Ze,   R. L. Kauffman,   J. D. Kilkenny,   J. Wielwald,   P. M. Bell,   R. Hanks,   J. Stewart,   D. Dean,   J. Bower,   R. Wallace,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1992)
卷期: Volume 63, issue 10  

页码: 5124-5126

 

ISSN:0034-6748

 

年代: 1992

 

DOI:10.1063/1.1143460

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Two‐dimensional, time resolved x‐ray imaging is a principal technique used to study hot plasmas produced in laser heated targets. It can be used to study laser energy deposition within the irradiation spot, the spatial and temporal dependence of laser to x‐ray conversion efficiency, electron transport and density profiles, mass ablation rates as well as x‐ray driven implosions in inertial confinement fusion experiments. We have successfully developed a new soft x‐ray framing camera which will allow us to record two‐dimensional images at different times almost simultaneously. It is a broadband diagnostic (100 eV≤&Dgr;h&ngr;≤400 eV) having three channels which can obtain x‐ray images at four different times from laser driven targets. Its current configuration includes one 500 eV, one 1.0 keV, and one ∼2.5 keV channels. The two low energy channels resulted from pairing transmission filters to grazing x‐ray mirrors. Other channel options can be implemented easily to measure other x‐ray energies. Four different striplines coated on a microchannel plate are gated at different times. Each strip records three different images taken nearly simultaneously, one image per channel. The result is 12 x‐ray images on film, four images per channel taken at four different times, with a nominal resolution of approximately 100 ps per image. The diagnostic’s spatial resolution is approximately 10 &mgr;m. We have already fielded this new instrument during x‐ray conversion experiments, using both low and highZtargets driven by 1–2 ns, ‘‘flattop’’ laser pulses. We will show the details of the instrument design and sample results from conversion experiments.

 

点击下载:  PDF (429KB)



返 回