WP4 Neutronic Technological Innovation
Task 4.2 Neutron Detectors – The Intensity Frontier
Francesco Piscitelli
on behalf of the ESS detector group,Wigner Research Institute
AndLund University Division of Nuclear Physics
2015/09/25
Task Length
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Sept. 15 Sept. 16 Sept. 17 Sept. 18
Deliverable
Milestone
3 years
The key objective of WP4 is the technological evolution of neutron detectors in terms of resolution, intensity and dimensions.
Partners Involved
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Wigner Research Institute(Dezsõ Varga and Eszter Dian)
LU has a long story of developing novel particle detectors for hostile particle accelerator.LU has completed the construction of the Source-Testing Facility for prototype commissioning.Their experience with developing and testing detectors will be crucial for the task in WP4.
BNC-Wigner is the largest organization in Hungary comprising 45 research group of various profile.BNC-Wigner has a long tradition in working with industrial companies; in 10y over 25 companies of various size and profile were involved in technology transfer related to neutron developments.BNC-Wigner will support with the detector development required in the intensity frontier task in WP4.
ESS Detector Group(Francesco Piscitelli)
Division of Nuclear Physics(Kevin Fissum)
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
The instantaneous flux will be without precedent.
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
The instantaneous flux will be without precedent.
Neutron Reflectometry
Reflectometers at ESS
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
The instantaneous flux will be without precedent.
Neutron Reflectometry
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
Reflectometers at ESS … but not only!
SNS
PNPI
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Requirements for Reflectometry at ESS
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Requirements for Reflectometry at ESS
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
The state of the art
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Requirements for Reflectometry at ESS
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
The state of the artx300
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Requirements for Reflectometry at ESS
Description of Task 4.2: Neutron Detectors – The Intensity Frontier
The state of the artx300x5
Distribution of the work among partners
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Electric filed modelingDetailed GEANT4 on detector performanceTesting and availability of beam lineData analysis
Build technology prototypeInitial test at both beam line and Reflectometry beam line
Under discussion …
All three partners will work together on the final detector for the ESS Reflectometers
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
What has been done so far …
concept introduced in 2005
proof of concept in 2012
University of Perugia
Institut Laue-Langevin
Institut Laue-Langevin
neutrons
5 degrees
θ
10B4C layer
Efficiency 45% at 2.5ÅA single Boron layer inclined at 5 degrees
Efficiency
The intensity is spread over a wider surface(5 degrees = factor x10)
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
What has been done so far … F. Piscitelli and P. Van Esch, JINST 8 P04020 (2013)
Multi-Bladesample
neutrons
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
What has been done so far …
wires X
substrate
neutrons
θstrip
s Y10B4C
Multi-Bladesample
neutrons
neutrons hit the layers at 5˚
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
What has been done so far …
concept introduced in 2005
proof of concept in 2012
F. Piscitelli et al., JINST 9 P03007 (2014)F. Piscitelli, PhD Thesis, Uni. Perugia & ILL (2014) arXiv:1406.3133
J.C. Buffet et al., Nucl. Instrum. Meth. A 554 392 (2005)4 cassette demonstrator:
4 cassette demonstratorResults:
• Measured Efficiency 45% at 2.5Å
• Spatial Resolution 280μm x 4mm
• Counting rate capability ~5000 n/s/mm2 at 2.5Å (limited by the electronics)
• Atmospheric pressure operation (thin vessel window, low scattering) (cost effective materials)
What has been done so far …
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
F. Piscitelli et al., JINST 9 P03007 (2014)F. Piscitelli, PhD Thesis, Uni. Perugia & ILL (2014) arXiv:1406.3133
4 cassette demonstratorResults:
• Measured Efficiency 45% at 2.5Å
• Spatial Resolution 280μm x 4mm
• Counting rate capability ~5000 n/s/mm2 at 2.5Å (limited by the electronics)
• Atmospheric pressure operation (thin vessel window, low scattering) (cost effective materials)
What has been done so far …
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
Requirements for Reflectometry at ESS
9 cassette demonstrator:
• Counting rate capability
• Overlap and uniformity
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
The near future … demonstrator detector as first step in BrightnESS
9 cassette demonstrator:
• Counting rate capability
• Overlap and uniformity
amplifier
board
am
plifi
er
board
cath
ode
stri
ps
anode w
ires
hold
ing
fram
e
10B4 C substrate
neutro
ns
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
The near future … demonstrator detector as first step in BrightnESS
9 cassette demonstrator:
• Counting rate capability - dedicated electronics with individual readout
• Overlap and uniformity
amplifier
board
am
plifi
er
board
cath
ode
stri
ps
anode w
ires
hold
ing
fram
e
10B4 C substrate
neutro
ns
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
The near future … demonstrator detector as first step in BrightnESS
WP4 - Task 4.2 Neutron Detectors – The Intensity Frontier
D4.2 Counting rate capabilityD4.6 Detector Characterization D4.12 Reflectometry detector
MS12 Improvement of the Multi-Blade designMS16 Improvement of the counting rate cap.MS20 Characterization of the demonstratorMS29 1st Detector construction
Sept. 15 Sept. 16 Sept. 17 Sept. 18
Planning
Implementation
Deliverable
Milestone
Milestones & Deliverables
Contact details
Phone: +46 72 179 23 [email protected]
Francesco PiscitelliPostdoc in neutron detector technologyTask leader 4.2 BrightnESS
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