Monitoring of the thermal neutron flux in the LSM underground laboratory

Details Monitoring of the thermal neutron flux in the LSM underground laboratory Monitoring of the thermal neutron flux in the LSM underground laboratory

2010-01-25

arxiv.org/abs/1001.4383v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

submitted to Journal of Physics G: Nuclear and Particle Physics, 8 pages, 4 figures

Scientific paper

This paper describes precise measurements of the thermal neutron flux in the LSM underground laboratory in proximity of the EDELWEISS-II dark matter search experiment together with short measurements at various other locations. Monitoring of the flux of thermal neutrons is accomplished using a mobile detection system with low background proportional counter filled with $^3$He. On average 75 neutrons per day are detected with a background level below 1 count per day (cpd). This provides a unique possibility of a day by day study of variations of the neutron field in a deep underground site. The measured average 4$\pi$ neutron flux per cm$^{2}$ in the proximity of EDELWEISS-II is $\Phi_{MB}=3.57\pm0.05^{stat}\pm0.27^{syst}\times 10^{-6}$ neutrons/sec. We report the first experimental observation that the point-to-point thermal neutron flux at LSM varies by more than a factor two.

Affiliated with

Also associated with

No associations

Rating

Monitoring of the thermal neutron flux in the LSM underground laboratory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Monitoring of the thermal neutron flux in the LSM underground laboratory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring of the thermal neutron flux in the LSM underground laboratory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-130638