BDF target/dump length optimization

Name: BDF target/dump length optimization
Start: 2025-02-14T10:30:00+01:00
End: 2025-02-14T11:00:00+01:00
Location: No location set

Friday 14 Feb 2025, 10:30 → 11:00 Europe/Zurich

61322867834

Claudia Ahdida

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RP studies were performed with a full tungsten target of 150 cm length and a density of 19.3 g/cm³
The proximity shielding was reduced from 50 cm to 25 cm with a W (18.5 g/cm³) and Cu plug (D = 30 – 25 cm)
Marco pointed out that currently Cu is being investigated for the proximity shielding itself, which is to be checked by RP (Action/Olin)
A reduction of the MHS length from 450 cm to 230 cm was investigated
Comparison of prompt dose rates for the W and Cu plugs show only a small difference (~10%) between the two cases
Prompt dose rates as the end of the hadron stopper are a factor 6-7 higher with the given setups compared to the CDS design, which from a prompt radiation point of view is acceptable
Preliminary results for the residual dose rates also seem to confirm that the reduced length is acceptable, which is to be confirmed with higher statistics (Action/Olin)
Additional R2E checks to be performed (Action/Luigi)

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