Recommissioning of JYFLTRAP at the new IGISOL-4 facility Kolhinen, V.S.; Eronen, T.; Gorelov, D. ...
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms,
12/2013, Letnik:
317, Številka:
Part B
Journal Article
Recenzirano
•The JYFLTRAP system has been moved to a new location and commissioned.•The line between RFQ and the Penning traps allows implementation of extra devices.•The RFQ cooler/buncher and both Penning ...traps are operational.•The buffer-gas cooling method and the excitations in the purification trap works.•TOF-ICR technique in the precision trap works. A resonance picture shown.
The JYFLTRAP double Penning-trap system was moved to a new location along with the Ion Guide Isotope Separator On-line (IGISOL) facility at the Accelerator Laboratory of the University of Jyväskylä. The move made it possible to upgrade various parts of the facility. For example, separate beam lines for JYFLTRAP and the collinear laser spectroscopy station were constructed after the radio-frequency quadrupole cooler and buncher. In this contribution we give an overview of the new JYFLTRAP facility and results from the first stable ion-beam tests.
There is a specific requirement for amputee statistics to facilitate the planning of prosthetic rehabilitation of amputee patients. The aim of this study was to analyse the epidemiological situation ...concerning upper limb amputations in southern Finland. The data on all limb amputations made in the catchment area of the Helsinki University Central Hospital were collected for the period 1984-85. During the two-year period upper limb amputations had been performed on 52 patients. A total of six major amputations had been performed on 52 patients. A total of six major amputations had been performed at a level potentially requiring a prosthesis, and 46 patients had undergone amputation distal to the carpal joint. The overall upper limb amputation rate was 2.2 and rate of major amputations 0.3 per 100,000 inhabitants per year. The ratio of men to women was 7.7 for all amputations and 10.5 for finger amputations. Of the 52 amputees, 62 per cent were in the 20-59 age group. The mean age of all amputees was 42.7 years. The typical upper limb amputee was a man of active working age. Trauma, mainly occupational accident, was the most common cause, accounting for 61 per cent of all upper limb amputations. The annual incidence of major amputations in the whole of Finland is as low as 20-30 cases. It would seem reasonable to concentrate prosthetic fitting of upper limb amputations at two or three prosthetic factories and rehabilitation centres.
