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The Long Interval NeUtron Survey-meter

LINUS

is a new type of rem counter developed by

INFN

(LNF Radiation Protection Group and Section of Milan)

 

Detector

  • cylindrical BF3 proportional counter (95% 10B enrichment);

  • diameter = 2.54 cm;

  • active length = 5.08 cm;

  • pressure = 8.0x104 Pa.

Moderator

  • inner polyethylene :

    • thickness =1.9 cm;

  • boron doped synthetic rubber attenuator:

    • outer diameter=7.6 cm;

    • length =14 cm;

    • thickness = 0.6 cm;

  • Lead attenuator:

    • thickness = 1 cm;

  • outer polyethylene:

    • thickness = 7 cm.

Response

The response function is extended to several hundred MeV.

 

References

Birattari C., Ferrari A., Nuccetelli C., Pelliccioni M. and Silari M.

An Extended Range Neutron Rem Counter.

Nucl. Instrum. Methods A297, 250-257 (1990).

 

Birattari C., Esposito A., Ferrari A., Pelliccioni M. and Silari M.

A Neutron Survey Meter with Sensitivity Extended up to 400 MeV.

Radiat. Prot. Dosim. 44, 193-197 (1992).

 

Birattari C., Esposito A., Ferrari A., Pelliccioni M. and Silari M.

Calibration of the Neutron Rem Counter Linus Energy Range from Thermal to 19 MeV.

Nucl. Instrum. Methods A324, 232-238 (1993).

 

Birattari C., De Ponti E., Esposito A., Ferrari A., Pelliccioni M. and Silari M.

Measurements and Characterization of High Energy Neutron Fields.

Nucl. Instrum. Methods A338, 534-543 (1994).

 

Birattari C., De Ponti E., Esposito A., Ferrari A., Pelliccioni M. and Silari M.

LINUS: an Andersson-Braun Rem Counter with an Extended Response Function.

In: Proc 8th Int. Conf.on Radiation Shielding, Arlington, Texas, April 1994(American Nuclear Society) Vol. I, pp. 254-263 (1994).

Birattari, C. and 10 others. Intercomparison of the Response of Dosemeters used in High Energy Stray Radiation Fields.

Radiat. Prot. Dosim. 51, 87-94 (1994).

Birattari C., De Ponti E. Esposito A., Ferrari A., Magugliani M., Pelliccioni M. Rancati T. and Silari M.

Measurements and Simulations in High Energy Neutron Fields.

In: Proc. 2nd Specialists' Meeting on Shielding Aspects of Accelerators, Targets and Irradiation Facilities, CERN, Geneva, October 1995 (OECD/NEA) pp. 171-197 (1996).

Birattari, C., De Ponti, E. Esposito, A., Ferrari, A., Magugliani, M., Pelliccioni, M., Rancati, T. and Silari, M.

Recent Developments on the LINUS Rem Counter and Characterization of High Energy Accelerator Radiation Fields .

In: Proc.1996 Topical Meeting on Radiation Protection and Shielding. Vol. I, pp. 129-138 (1996).

Birattari C., E. Esposito A., Ferrari A., M., Pelliccioni M., Rancati T. and Silari M.

The extended range neutron rem counter "LINUS": Overview and latest developments. .

Radiat. Prot. Dosim. 76, No.3, 135-148 (1998).

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