1 / 11

Temporary shielding for the 20" vertical penetration

Temporary shielding for the 20" vertical penetration. Igor Rakhno November 17, 2008. Vertical vent in MTA hall, 20 " (elevation view). Vertical vent in MTA hall, 20 " (cross section). Plan view of the temporary shielding. 1-cm Cu target (10% of I.L.) @ 1 Hz (DC loss).

cais
Download Presentation

Temporary shielding for the 20" vertical penetration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Temporary shielding for the 20" vertical penetration Igor Rakhno November 17, 2008

  2. Vertical vent in MTA hall, 20" (elevation view)

  3. Vertical vent in MTA hall, 20" (cross section)

  4. Plan view of the temporary shielding

  5. 1-cm Cu target (10% of I.L.) @ 1 Hz (DC loss) • Calculated dose on top of the temporary shielding is 50 mrem/hr • Calculated dose at the opening is 80 mrem/hr → extra bent section(0.1) • Calculated dose near the side walls is 10 mrem/hr • When considering a 100% I.L. target and rep.rate of 3 pulses per minute (1 pulse every 20 sec), one gets approximately 50 × 10 / 20 = 10 mrem/hr • Radiation area (fencing)

  6. Shielding block in the access pit (cross section)

More Related