A continuous mesostructured silica film with uniaxially aligned hexagonal mesochannels is obtained on a silica glass substrate using a rubbing -treated thin polyimide coating on the substrate. The mesochannels in the film are aligned perpendicular to the rubbing direction. To analyze the mesostructured thin films we used a conventional line-focus x-ray diffraction and a two-dimensional (2-D) X-...

X-ray examination of the chest revealed a large circumscribed area of absent aeration in the central portion of the left lung which extended from the axillary portion of the chest to the hilum, merging with the mediastinal structures. In the lateral projection, this circumscribed area was superimposed over the heart. An aneurysm could not be excluded; the area of diminished aeration was thought...

OBJECTIVE To evaluate the use of an initial staging chest x-ray film in asymptomatic patients who present with localized primary cutaneous melanoma. DESIGN The staging workup of 1032 consecutive asymptomatic patients with localized melanoma was retrospectively reviewed via database chart review. SETTING Regional melanoma referral center in an academic medical center. PATIENTS The melanoma...

The evolution of stored ferroelectric polarization in PZT thin film capacitors was imaged using synchrotron x-ray microdiffraction with a submicron-diameter focused incident x-ray beam. To form the capacitors, an epitaxial Pb(Zr,Ti)O3 (PZT) thin film was deposited on an epitaxiallygrown conductive SrRuO3 (SRO) bottom electrode on a SrTiO3 (STO) (001) substrate. Polycrystalline SRO or Pt top ele...

Introduction: The present study was conducted to implement a simple practical independent quality check of depth dose and isotropy of the Intrabeam™ therapeutic X-ray machine using radiochromic EBT2 film. Material and Methods: Theindependent quality check of 1.5, 3.5, and 5-cm spherical Intrabeam™ applicators was accomplished using particular EBT2 film cutting pieces with internal rounded edge...