SPS Synchrotron Light Monitor-BSR-Status

G. TRADE. Bravin, A. Goldblatt, F. Roncarolo

2SPS BSR Status, G. Trad 04 /02/2015

Content

System Description Location Components

Commissioning SR Intensity

Status

Outlook Batmon Readings

Summary

s

3

SystemDescription

Commissioning

Status

Outlook

SPSLayout

BSR

3SPS BSR Status, G. Trad 04 /02/2015

SR Monitor

Light Source

SR extraction

Optical Systems Detector

SystemDescription

Commissioning

Status

Outlook

4SPS BSR Status, G. Trad 04 /02/2015

• Critical wavelength emitted (even at the flat top energy 28 µm) is far from the detectable range

• Expected light results to be the Edge radiation

• Short distance between the two dipoles lead to interference phenomena

System DescriptionSystemDescription

Commissioning

Status

Outlook

5SPS BSR Status, G. Trad 04 /02/2015

integrated energy per turn over the detectable range in function of the energy

α ɣ12.8

• From E≈400 GeV the emitted light is comparable to the LHC emitted by the LHC undulator at 450 GeV

• Therefore it is reasonable to foresee an SR monitor at flattop energy in the SPS

SR Source SimulationSystemDescription

Commissioning

Status

Outlook

6SPS BSR Status, G. Trad 04 /02/2015

SystemDescription

Commissioning

Status

Outlook

s

80/ mm

96 mm

100

mm

SR Light

Towards optical system

Beam

axi

s

Mirr

or a

xis

View

Port

7SPS BSR Status, G. Trad 04 /02/2015

SystemDescription

Commissioning

Status

Outlook

8SPS BSR Status, G. Trad 04 /02/2015

Shielded Optical Table

Motorized Steering mirror

Extraction Mirror

SR Light

SystemDescription

Commissioning

Status

Outlook

9SPS BSR Status, G. Trad 04 /02/2015

SystemDescription

Commissioning

Status

Outlook

10SPS BSR Status, G. Trad 04 /02/2015

SR LightIntensified gated CCD(Motorized)

Filters : ND+ColorOn motorized wheel

Ocular Lens for zoom(motorized)

Apochromat Lens

SystemDescription

Commissioning

Status

Outlook

11SPS BSR Status, G. Trad 04 /02/2015

Calibration Target for magnification

Calculation

SystemDescription

Commissioning

Status

Outlook

12SPS BSR Status, G. Trad 04 /02/2015

Imaged SPS SR light for a bunch of 1011 protons over 4 SPS turnsalong the energy ramp.

SR Source MeasurementSystemDescription

Commissioning

Status

Outlook

13SPS BSR Status, G. Trad 04 /02/2015

measured

predictedobserved

Measured SR intensity integrated over the detector area

SR Source MeasurementSystemDescription

Commissioning

Status

Outlook

14SPS BSR Status, G. Trad 04 /02/2015

• Hardware Fully installed for a flattop measurement

• Software missing for a safe image acquisition with no expert tools

• Hardware missing for a continuous measurement along the ramp• (function generator for the gain control).

• If optimized acquisition could reach 30 frames per seconds (expert tools)

StatusSystem

Description

Commissioning

Status

Outlook

15SPS BSR Status, G. Trad 04 /02/2015

OUTLOOK

CROSS CALIBRATION WITH WS (s) FOR RESOLUTION MEASUREMENTS

17SPS BSR Status, G. Trad 04 /02/2015

Dispersion is important in the horizontal planeNeeded a good (delta p)/p knowledge

18SPS BSR Status, G. Trad 04 /02/2015

Possible Installation of a high frame rate digital camera (1000 fps)

SystemDescription

Commissioning

Status

Outlook

19SPS BSR Status, G. Trad 04 /02/2015

SPARE