| 1. |
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| 2. |
- Costa, M, et al.
(författare)
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Results from an ATM-based event builder demonstrator
- 1996
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Ingår i: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0018-9499. ; 43:3, s. 1814-1820
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- ATM switching fabrics are good candidates to implement high performance parallel event builders for the future data acquisition systems in particle physics experiments. We are studying their feasibility through simulations and implementation of event buil
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| 3. |
- Dale, S, et al.
(författare)
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A mobile tomographic gamma camera system for acute studies
- 1997
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Ingår i: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 44:2, s. 199-203
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Duan, M., et al.
(författare)
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Deposition of Scintillating Layers of Bismuth Germanate (BGO) Films for X-ray detector applications
- 1998
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Ingår i: IEEE Transactions on Nuclear Science. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 45:3, s. 525-527
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Tidskriftsartikel (refereegranskat)abstract
- Bi4Ge3O12 films were deposited by pulsed laser ablation on glass and SiO2/Si substrates. The crystal structures of the films depend on the deposition temperature. XRD patterns indicate that the films deposited at substrate temperature less than 400°C are amorphous. The as deposited amorphous films can be crystallized by post rapid thermal annealing (RTA) in the temperature window from 750°C to 800°C for 2 minutes in a oxygen ambient environment. RBS measurements confirm that the films have the same chemical composition as that of the target. The surface morphology of the films were characterized by atomic force microscopy (AFM)
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| 5. |
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| 6. |
- Evensen, L, et al.
(författare)
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Thin detectors for the CHICSi Delta E-E telescope
- 1997
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Ingår i: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0018-9499. ; 44:3, s. 629-634
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Tidskriftsartikel (refereegranskat)abstract
- A pilot series of 10 mu m to 15 mu m thin silicon detectors has been made for the Delta E-E telescopes in the CHICSi detector system. This system will operate gt the CELSIUS heavy ion storage ring in Uppsala, Sweden, Delta E-E telescopes provide isotope i
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| 7. |
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| 8. |
- Gustafsson, L., et al.
(författare)
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A data acquisition system for the wide angle shower apparatus (WASA)
- 1994
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Ingår i: IEEE Transactions on Nuclear Science. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 41:4, s. 1155-1158
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Tidskriftsartikel (refereegranskat)abstract
- A new data acquisition system based on concepts such as data switches and multiple-processors is described. The main topic is how data coming from a multicrate front-end in CAMAC, VME and FASTBUS are transported over different links to a buffer-matrix data switch and further into a farm of microprocessors. Modularity, scalability and multilevel data monitoring are important parts of the design goals that are presented. The system is intended for use in an experiment searching for rare events where high interaction rates are necessary and where a fast and selective trigger is difficult to define. Other experimental constraints, the trigger logical structure and the performance of the data acquisition are also described.
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| 9. |
- Gustafsson, L, et al.
(författare)
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The WASA Data Acquisition System (WDAQ)
- 1999
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Ingår i: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0018-9499. ; 46:3, s. 420-423
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Tidskriftsartikel (refereegranskat)abstract
- The WASA Data Acquisition System (WDAQ) is described. It is a modular, and scalable network based system. The chosen structure facilitate that different did and new front-end electronics standards can work together in an efficient way. Fast hardware trigg
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| 10. |
- Hademenos, George J, et al.
(författare)
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A Monte Carlo Investigation of the Dual Photopeak Window Scatter Correction Method
- 1993
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Ingår i: IEEE Transactions on Nuclear Science. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 40:2, s. 179-185
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Tidskriftsartikel (refereegranskat)abstract
- Results from a Monte Carlo investigation of the dual photopeak window (DPW) scatter correction method are presented for point and extended sources of Tc-99m in both homogeneous and nonhomogeneous attenuating media. The DPW method uses the ratio of counts in two nonoverlapping energy windows within the photopeak region as input to a regression relation. A pixel-by-pixel estimate of the scatter in the summed windows is obtained and subtracted to yield an estimate of the primary. An approximate tenfold decrease in the scatter fraction and an excellent agreement with the shape of the true scatter distribution were observed.
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