A new type of X-ray area detector utilizing laser stimulated luminescence

Miyahara, Junji; Kamiya, Nobuo; Satow, Yoshinori; Amemiya, Yoshihito; Takahashi, Kenji

doi:10.1016/0168-9002(86)90156-7

Cited by 352 publications

(100 citation statements)

References 17 publications

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“…A flat highly oriented pyrolytic graphite ͑HOPG͒ crystal in 002 orientation 16 coupled to a Fujifilm image plate detector 17 viewed front emission from the target in the 4 -5 keV region. The image plate was covered by 5 mo f aluminum to eliminate direct visible light exposure.…”

Section: Methodsmentioning

confidence: 99%

Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils

et al. 2007

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Dense titanium plasma has been heated to an electron temperature up to 1300 eV with a 100 TW, high intensity short-pulse laser. The experiments were conducted using Ti foils ͑5 m thick͒ sandwiched between layers of either aluminum ͑1or2 m thick͒ or plastic ͑2 m thick͒ to prevent the effects of prepulse. Targets of two different sizes, i.e., 250ϫ 250 m 2 and 1 ϫ 1m m 2 were used. Spectral measurements of the Ti inner-shell emission, in the region between 4 and 5 keV, were taken from the front-side ͑i.e., the laser illuminated side͒ of the target. The data show large shifts in the K␣ emission from open-shell ions, suggesting bulk heating of the sample at near solid density, which was largest for reduced mass targets. Comparison with collisional radiative and 2D radiation hydrodynamics codes indicates a peak temperature of T e,peak = 1300 eV of solid titanium plasma in ϳ0.2 m thin layer. Higher bulk temperature ͑T e,bulk = 100 eV͒ for aluminum tamped compared to CH tamped targets ͑T e,bulk =40 eV͒ was observed. A possible explanation for this difference is described whereby scattering due to the nuclear charge of the tamping material leads to modified electron transport behavior.

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Section: Methodsmentioning

confidence: 99%

Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils

et al. 2007

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“…Energy and duration of the LFEX pulse were respectively 500 + / − 100 J and 1.5 ps, yielding intensity of 1.2 × 10 19 W/cm 2 at the cone tip. The density of the core is estimated to be around 10 g/cm 3 and density-radius product is around 0.02 g/cm 2 .…”

Section: K Line Measurement For Au-cone-guided Targetsmentioning

confidence: 99%

“…The calibration with 226 Ra was taken out at the OCTAVIAN facility at Osaka University. Due to a long exposure time, IP of Type BAS-TR2025 from Fujifilm was applied [8]. The typical exposure time was 20 to 140 hours.…”

Section: For Details)mentioning

confidence: 99%

“…1 the spectrometer consists of a cylindrically curved Quartz (10-11) plate of 0.2 mm in thickness, 14 mm in height and 30 mm in width (direction corresponding to spectral dispersion). The detector can either be an imaging plate (IP) from Fujifilm [2] or a charge coupled device (CCD: Andor Model DH420-FO, 6.7 mm in height and 25 mm in width) with a fiber-optic plate coated with a CsI phosphor of 100 m thickness. The Quartz plate is bent with a radius of 170 mm in such that the diffracted x-rays are focused once at the intermediate slit.…”

Section: High Energy K Line Spectrometermentioning

confidence: 99%

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Absolute Kα line spectroscopy for cone-guided fast-ignition targets

Nishimura

Zhang

Namimoto

et al. 2013

EPJ Web of Conferences

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Abstract. Absolute K line spectroscopy is proposed to study laser-plasma interactions taking place in cone-guided fast ignition targets. A transmission-type spectrometer was developed, and its absolute sensitivity was measured with laser-generated x-rays and radioisotopes, showing good agreement with theoretical predictions. The absolute yield of Au K line was mesured in the fast ignition experimental campaign perfomed at ILE, Osaka University. Assuming a single Maxwellian electron spectrum and oneway travel of hot electrons through the cone, energy transfer efficiency of incident LFEX laser to hot electrons was derived.

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“…lack of real-time capability, inability for repeated use and need for additional efforts to obtain digitized images. The imaging plate developed by Fuji [28] solves most of tht( deficiencies of film except for time resolution. It requires a separate readout system to "develop" an image.…”

Section: Medical Imaging Applicationsmentioning

confidence: 99%

Applications of a-Si:H radiation detectors

Fujieda

Cho

Kaplan

et al. 1989

Journal of Non-Crystalline Solids

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Devic~ structures and operation principles are described for detecting various kinds of radiation with hydrogenated amorphous silicon (a-Si:H) layers. With some new configurations such as the buried p-i-n structure and the use of interdigitated electrodes, the aSi:H radiation detectors will find their applications in rnany fields of science. Some applications in high energy physics, medical imaging, materials sciences and life sciences are discussed in this paper.

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A new type of X-ray area detector utilizing laser stimulated luminescence

Cited by 352 publications

References 17 publications

Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils

Creation of hot dense matter in short-pulse laser-plasma interaction with tamped titanium foils

Absolute Kα line spectroscopy for cone-guided fast-ignition targets

Applications of a-Si:H radiation detectors

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