[New Benchmark] - ICSBEP ALARM-CF-AIR-LAB-001

[Radiation-Transport]

Is the new benchmark computational or experimental?

• [] Computational
• Experimental

Is this a MultiTest or a normal Test?

MultiTest

Give a concise description of the benchmark

Experimental investigation of the neutron flux in a large three-section concrete labyrinth was done in the summer of 1982 in an open area at the Institute of High Energy Physics at Protvino, near Serpoukhov (Moscow Region), Russia. The source of neutrons for these experiments was spontaneous decay of 252Cf. The source was installed at the center of the doorway aperture of the labyrinth. The experiments were performed with “unfiltered” radiation from the bare source and with “filtered” radiation from the source surrounded by a 30.5-cm-diameter polyethylene sphere with a 4-cm-diameter spherical central cavity. Neutron flux was measured by the Bonner sphere method at different points inside each section of the labyrinth. The influence of different coverings of the labyrinth wall on the neutron flux in remote sections of the labyrinth was investigated. The aim of the experiments was to obtain benchmark data for validation of the computer codes used for estimation of doses from the neutrons that penetrate the shielding, via numerous leaks, of the acceleration-storage ring of the Large Serpoukhov Proton Accelerator. Six cases with unfiltered radiation and five cases with filtered radiation are evaluated. Measurements of all 11 cases are acceptable benchmark data. Measurements for the filtered (polyethylene-shielded) sources are more appropriately identified as ALARM-CF-CH2-LAB-001. However complete documentation of those experiments is published in here.

Does the benchmark needs new types of plots?

TBC

Can the benchmark be used for all codes implemented in JADE or for a specific subset?

Not to be shared in JADE as proprietary benchmark of ICSBEP.

Input for MCNP only.

Can inputs of this benchmark be freely re-distributed?

• [] yes
• no

If no, please specific who will be able to access the inputs.
Only ICSBEP licensee.

Additional information/context

Add here any additional information or context that you want to provide.

To be completed only for experimental benchmarks

Please erase this entire block if the benchmark to be added is a computational one.

Is any of the existing general classes suitable for this benchmark?

To be checked.

Can experimental data of this benchmark be freely re-distributed?

• [] yes
• no

If no, please specific who will be able to access the experimental data.
Only ICSBEP licensee.