Notification:
We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

Nuclear Science, IEEE Transactions on

Issue 1 • Date Feb 2000

Filter Results

Displaying Results 1 - 5 of 5
  • Signal propagation in straw tubes with resistive cathode

    Publication Year: 2000 , Page(s): 18 - 24
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (160 KB)  

    The analysis presented in this paper is part of the research performed by the authors for the COMPASS experiment at CERN. We have developed a theoretical model of the signal transmission in a straw tube. In contrast to commonly used simplified models, our approach takes into account the energy losses in the cathode resistance. This model allows determination of the main electrical parameters, such as characteristic impedance and signal attenuation, as well as a detailed simulation of the pulse shape dependent on the point of the charge injection. Simulation results have been compared with the results of experimental measurements of different types of the straw detectors View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics of high deposition rate PIN diodes from pure SiH 4 and 10% dilution of SiH4 in H2

    Publication Year: 2000 , Page(s): 33 - 35
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (100 KB)  

    In this paper, we present the results of the electrical characterization of PIN diodes up to 18 μm thick fabricated on high deposition rates a-Si:H layers obtained from pure SiH4 and from a 10% dilution of SiH4 in H2, using a 13.56 MHz plasma enhanced chemical vapor deposition (PECVD) with geometrical modifications in the plasma reactor. I-V and I-T curves were investigated, concluding that the changes introduced in the deposition reactor to increase the deposition rate did not affect the characteristics of the fabricated diodes. Results are compared with characteristics, reported for diodes obtained by standard and other high deposition rate methods View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A low-power, radiation-hard gigabit serializer for use in the CMS electromagnetic calorimeter

    Publication Year: 2000 , Page(s): 13 - 17
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (380 KB)  

    An integrated fiber-optic bit serializer and VCSEL driver has been constructed in radiation-hard complementary heterostructure GaAs FET (CHFET) technology. The serializer, which converts 20 parallel inputs into a high-speed serial output, consumes 60 mW at nominal supply voltage when operating at the Large Hadron Collider word rate of 40 MHz (0.8-GB/s serial rate). The integrated driver directly drives a VCSEL and provides 10-mA switched current and 5 mA of prebias. The complete digital optical link thus consumes 90 mW View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • SIC, an intracerebral radiosensitive probe for in vivo neuropharmacology investigations in small laboratory animals: theoretical considerations and practical characteristics

    Publication Year: 2000 , Page(s): 25 - 32
    Cited by:  Papers (24)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (748 KB)  

    Although high-resolution tomographs provide a new approach that strongly simplifies the measurement of in vivo tracer biodistribution and kinetics in small animals, they suffer from an important drawback: the need for animal anesthesia or immobilization, which restricts the neurophysiological investigations. Furthermore, quantitative in vivo experiments realized on the brain sometimes only require a simple measurement of the radioactivity achieved on a few local points and do not necessarily imply the use of a tomograph, which is a detector of high cost. These constraints led the authors to develop an interacerebral β sensitive probe, sonde intracerebrate (SIC) (French acronym of intracerebral probe) that will allow chronic measurements of the neurophysiological activity in awake and unrestrained small animals. The volume to which the probe is sensitive and the noise contributions to the relevant signal have been evaluated through Monte Carlo simulations. Characterizations of a first prototype based on a small piece of scintillating fiber (500-μm diameter and 1-mm length) fused to a same diameter optical fiber coupled in turn to a photomultiplier are also presented. A first configuration of the detector is finally proposed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • X-ray detection with a scintillating YAP-window hybrid photomultiplier tube

    Publication Year: 2000 , Page(s): 6 - 12
    Cited by:  Papers (7)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (136 KB)  

    A YAP(YAlO3:Ce)-scintillating window, coated on its inner surface with an S20-photocathode, seals a cross-focusing hybrid photomultiplier tube (HPMT) equipped with a small p-i-n anode of 2-mm diameter. This new radiation detector separates X-ray lines down to about 2-keV peak energy from the HPMT noise. Its detection efficiency for high gamma energies depends on the YAP-window thickness and amounts to about 18% attenuation at 400-keV energy in the present version. Competitive radiation detectors like Si photodiodes and Si drift chambers are discussed and compared to our prototype, with particular attention given to their energy resolution and noise performance, which limits their active area considerably View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Transactions on Nuclear Science focuses on all aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Paul Dressendorfer
11509 Paseo del Oso NE
Albuquerque, NM  87111  USA