A Solid State Position Sensitive X-ray Detector for the Lcls : a Proposal for Category C. (letter of Intent)

Coherent X-ray Scattering Studies of Surface Evolution During Materials Growth and Modification A Proposal Submitted for Science at the LCLS: Category “A” Letter of Intent

Letter of Intent for provision of ultrafast streak camera-based detectors for LCLS experiments

This Letter of Intent (LoI) sets out a proposal to provide ultra-fast streak camera-based x-ray detectors for the LCLS. The first goal will be to provide a robust platform for achieving 100 fsec temporal resolution with high efficiency. It should be emphasized that although temporal resolutions of <600 fsec with UV (Liu et al. 2004) and 800 fsec with x-rays (Belzile et al. 2002) has been achiev...

Ultrafast Single Shot X-Ray Imaging of Magnetic Phase Transitions

We propose an experiment that makes full use of the unique capabilities offered by LCLS to image the critical fluctuations in a ferromagnetic film in the vicinity of its Curie temperature. The high intensity, femtosecond time structure, and coherence of the LCLS x-ray pulses will enable us to record ultrafast consecutive images of critical fluctuations using a newly developed lensless imaging t...

Formation of a solid solution through accumulative roll bonding (ARB) and post-heat treatment of multilayered Cu/Zn/Al

In the present study, the capability of accumulative roll bonding (ARB) and subsequent heat-treatment to fabricate solid solution from a multilayered Cu/Zn/Al was investigated. Two post-heat treatment (one-step and two-step) routes were proposed. In the first, the ARB processed material was heated to 800 C for 5:30 hours and allowed to cool slowly in a furnace (one-step route). In the second (t...

طراحی، شبیه‌سازی و ساخت یک نمونه اتاقک گازی پرتو ایکس حساس به موقعیت

In this paper a one dimentional position-sensitive X-ray gas detector has been designed, simulated and constructed based on Multi Wire Proportional Chamber (MWPC) with delay line position readout. These kinds of detectors are useful in soft X-ray imaging and are capable of being extended to two dimensions position readout easily. The position resolution of this detector is estimated to be 230µm...