Heteroepitaxy of Nd{sub 0.67}Sr{sub 0.33}MnO{sub 3} on silicon for bolometric x-ray detector application

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3499244· OSTI ID:22062205

Yong, G J; Kolagani, Rajeswari M; Adhikari, S ^[1]; Drury, O B; Gardner, C; Bionta, R M; Friedrich, S ^[2]

---

1. Department of Physics, Astronomy and Geosciences, Towson University, Towson, Maryland 21252 (United States)
2. Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States)

We have recently reported the design concept and sensor fabrication for a novel bolometric x-ray detector based on a rare earth manganite material for application as a total energy monitor for the Linac Coherent Light Source (LCLS) free electron laser at the Stanford Linear Accelerator Center (SLAC). The detector employs epitaxial thin films of Nd{sub 0.67}Sr{sub 0.33}MnO{sub 3} grown on Si by pulsed laser deposition. In this paper we report details of the fabrication of the actual detector, its response characteristics under photon illumination from LCLS, and improvements in the growth scheme of the sensor material on Si using a buffer/template layer scheme that employs yttria-stabilized zirconia, cerium oxide (CeO{sub 2}), and bismuth titanate (Bi{sub 4}Ti{sub 3}O{sub 12}). The thermal sensor response changes linearly with the energy of an optical calibration laser as expected, and the signals from optical and x-ray pulses at LCLS are very similar, thereby validating the design concept. To the best of our knowledge, the LCLS detector application reported here is the first practical use of colossal magnetoresistive manganite bolometers.

• OSTI ID: 22062205
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 11; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BISMUTH COMPOUNDS
BOLOMETERS
CALIBRATION
CERIUM OXIDES
CRYSTAL GROWTH
DESIGN
ENERGY BEAM DEPOSITION
EPITAXY
FREE ELECTRON LASERS
ILLUMINANCE
LASER RADIATION
LIGHT SOURCES
MAGNETORESISTANCE
PULSED IRRADIATION
SIGNALS
SILICON
STANFORD LINEAR ACCELERATOR CENTER
STRONTIUM COMPOUNDS
THIN FILMS
TITANATES
X-RAY DETECTION
YTTRIUM OXIDES
ZIRCONIUM OXIDES