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Message ID: 2403     Entry time: Wed Aug 28 09:49:44 2019
Author: anchal 
Type: Summary 
Category: scatter 
Subject: Beam Dump Status 

We need to switch out normal flat-faced beam dumps with triangular cavity beam dumps in all places where they are not present. Following is a summary of beam dump status

Total Normal Beam Dumps behind PMCs: 12

Triangular Cavity Beam Dump Mount Requirements
Position South Path Present? North Path Present? Needed more?
PMC RFPD reflection 1 1 0
FSS RFPD reflection 1 1 0
PMC Back-reflection 0 1 1
BS Discard before PMC EOM 0 1 1
Faraday Isolator discard before cavities 0 0 2
Trans CCD (Common) 1 0 1
Trans ISS PD Reflection 0 0 2
Trans BS discard before PD 0 0 2
Beatnote NF1811 (Common) 1 0 0
Beatnote SN101 (Common) 1 0 0
Total     9

 

 

 

 

 

 

 

 

 

 


Present Inventory for triangular beam dumps and requirements
  Present Quantity in CTN Needed more according to the above table
Triangular Cavity Mounts 3 6
Square 1"x1" Black Glass 16 11
Rectangular 1"x1.5" (Estimate) Black Glass 4 0
Square 1"x1" Black Glass with Hole 4 0

Triangular Cavity Beam Dump
Triangular Cavity Beam Dump

 

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