The Wide Field Spectrograph (WiFeS)

This paper describes the Wide Field Spectrograph (WiFeS) under construction at the Research School of Astronomy and Astrophysics (RSAA) of the Australian National University (ANU) for the ANU 2.3m telescope at the Siding Spring Observatory. WiFeS is a powerful integral field, double-beam, concentric, image-slicing spectrograph designed to deliver excellent thoughput, wavelength stability, spectrophotometric performance and superb image quality along with wide spectral coverage throughout the 320-950 nm wavelength region. It provides a 25x38 arcsec. field with 0.5 arcsec. sampling along each of twenty five 38X1 arcsec slitlets. The output format is optimized to match the 4096x4096 pixel CCD detectors in each of two cameras individually optimized for the blue and the red ends of the spectrum, respectively. A process of "interleaved nod-and-shuffle" will be applied to permit quantum noise-limited sky subtraction. Using VPH gratings, spectral resolutions of 3000 and 7000 are provided. The full spectral range is covered in a single exposure at R=3000, and in two exposures in the R=7000 mode. The use of transmissive coated optics, VPH gratings and optimized mirror coatings ensures a throughput (including telescope atmosphere and detector) > 30% over a wide spectral range. The concentric image-slicer design ensures an excellent and uniform image quality across the full field. To maximize scientific return, the whole instrument is configured for remote observing, pipeline data reduction, and the accumulation of calibration image libraries.Comment: Accepted for publication in Astrophysics & Space Science, 16 pages, 14 figure

Parents' Experiences of Caring for a Child With Chronic Pain

Involvement of parents in their children’s pain management is universally accepted as best practice, yet there is little understanding of their needs. Twelve parents of children with chronic pain were recruited to this study in which the impact of caring for a child with chronic pain was explored. All parents started in distress, and most moved into a stance that enabled them to balance the child’s needs with their own. These parents discussed “stepping back” from their child’s distress and gaining mastery over fearful emotional reactions. A minority remained in distress, finding an adaptive response to the child’s pain challenging. Catastrophic thinking, fear of pain, and the desire to fulfill a nurturing parental role led parents to place themselves continually “on call.” Findings indicate that parents might require support to care effectively for their children, and that many of the actions necessitated by children’s pain require complex and counterintuitive decisions