Numerical simulations can help you to improve the hardness or the response of devices to particle radiation. You can see the following article we published a few years ago related to neutron effects on photodiodes: M A Cappelletti, A P Cédola, E L Peltzer y Blancá, "Theoretical study of neutron effects on PIN photodiodes with deep-trap levels", Semiconductor Science and Technology, 24(10):105023 (2009) DOI: 10.1088/0268-1242/24/10/105023.
You can look at :
L. F. Voss et al., "Development of 10B2O3 Processing For Use as a Neutron Conversion Material," J. Electron. Mater. 39, 263 (2010).
A. N. Caruso, "The Physics of Solid-State Neutron Detector Materials and Geometries," J. Phys. Condes. Matter 22, 443201 (2010).
Semiconductor detector can be provided with a solid layer of 10B. Thickness of coating is limiting due to range of alpha particle. Further multiple alternate layers of 10B and semiconductor detectors can be stacked together for gain in efficiency.
Dear Manoj,
If I understand your question correctly, I assume you are referring to a thin film coated semiconductor neutron detector and not a bulk semiconductor neutron detector. To understand the advantages and disadvantages of such a device, please read my paper (available on my RG page):
McGregor et al., Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 500(1-3):272-308 · February 2003.
Described are limiting results from various permutations of thin film devices, including stacked devices.
For advanced semiconductor detectors, please read our recent work on our MSND technology (also available on my RG page). Here are some examples:
Fronk et al, Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment A 804:201-206 · September 2015.
McGregor et al., Journal of Crystal Growth 379:99 - 110 · August 2013.
In summary, a semiconductor diode coated with 10B or 6LiF is limited to approximately 4-5% thermal neutron detection efficiency, depending on the LLD setting. Multilayer films can reach between 6-7% thermal neutron detection efficiency. Stacked detectors increase efficiency, but have a diminishing return. The MSND technology has surpassed 50% thermal neutron detection efficiency.
Sincerely,
Douglas
Update: The MSND technology has now reached 69% thermal neutron detection efficiency.
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