Difference between revisions of "Spectrometer"

Revision as of 19:55, 1 February 2021

hybrid/segmented downselect - November 15
collimators (mid- December)
Review irradiation papers by mid-December
beam pipes and enclosures - Start mid-February
60% Design review to do a prototype (possible spare) March 8th
1. Freeze design by February 7th (config 9)
2. collimator 5, 6 dimensions needed
3. Envelopes - before end of February
Dates for upstream 60% Fall 2020?
90% Design (everything!) - CD2/3 Review
1. DirRev - July 2023

To be reviewed:

For both upstream and downstream coils, check with symmetric, asymmetric coils, and target motion

Number, z location and inner radii of collimators
Envelopes
1. Actual envelop (what gets through a collimator)
2. Envelop for what hits the detector
3. Less subjective algorithm
  1. 2D - integrate in x, y
  2. 1%, 10% of rate?
Beam vs. ee and ep generators at detector plane with backgrounds
Careful evaluation of all sources in the deconvolution
1. Charge particles
2. Photons
3. Light guide background
Determine amount of background that is delta rays or air
1. All info from vertex in one "container"
2. Other info, like what detector it hit in another "target"
3. Secondary signal electrons vs. true background electrons
Add US and DS vacuum vessels, bellows, linkages, and US beamline to the simulation
Study rare backgrounds from bellows and the linkages between strongbacks in the downstream (which should be stainless steel?) (expensive ferrous-free materials)
Backgrounds as we degrade the vacuum (beam and acceptance)

The MOLLER spectrometer in TOSCA

Layout of the hybrid torus conductor

Internal Working Group
- Ruben Fair (Project lead)
- Juliette Mammei (collaboration lead)
External Working Group
Review Committee Members (as needed)

@@ Line 40: / Line 40: @@
 == Ongoing Work ==
+For both upstream and downstream coils, check with symmetric, asymmetric coils, and target motion
+# Number, z location and inner radii of collimators
+# Envelopes
+## Actual envelop (what gets through a collimator)
+## Envelop for what hits the detector
+## Less subjective algorithm
+### 2D - integrate in x, y
+### 1%, 10% of rate?
+# Beam vs.  ee and ep generators at detector plane with backgrounds
+# Careful evaluation of all sources in the deconvolution
+## Charge particles
+## Photons
+## Light guide background
+# Determine amount of background that is delta rays or air
+## All info from vertex in one "container"
+## Other info, like what detector it hit in another "target"
+## Secondary signal electrons vs. true background electrons
+# Add US and DS vacuum vessels, bellows, linkages, and US beamline to the simulation
+# Study rare backgrounds from bellows and the linkages between strongbacks in the downstream (which should be stainless steel?) (expensive ferrous-free materials)
+# Backgrounds as we degrade the vacuum (beam and acceptance)
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