Reconstitution of Low Bandwidth Reaction History

Design and gamma sensitivity measurement of a novel dual-emitter vacuum Compton detector

“…The sensitivities for these scintillation detectors range from 2.5×10 −11 to 1.0×10 −19 C • cm 2 /MeV. [1] The upper measuring limits for these detectors are determined by the hardness of the scintillator and the linearity of the devices. Another type of current-mode detector is called a chargecollecting detector.…”

“…When a gamma ray passes through the detector and interacts with the emitter metal, plenty of electrons are ejected from the emitter surface and the net charges of the emitter can be measured. [1,2] A vacuum Compton detector (VCD), which has the merits of large dynamic linearity range and simple structure, is suitable for intense pulse ray detection. [1] Ebert and Lauzon, [3] Hsu and Lee [4] and Davis [5,6] de-signed a VCD with a single emitter and thin incident window structure for high-bandwidth (∼GHz) measurements, the gamma ray sensitivities could range from 4.9×10 −21 to 1.1×10 −20 C/MeV.…”

“…[1,2] A vacuum Compton detector (VCD), which has the merits of large dynamic linearity range and simple structure, is suitable for intense pulse ray detection. [1] Ebert and Lauzon, [3] Hsu and Lee [4] and Davis [5,6] de-signed a VCD with a single emitter and thin incident window structure for high-bandwidth (∼GHz) measurements, the gamma ray sensitivities could range from 4.9×10 −21 to 1.1×10 −20 C/MeV. For the thin incident window design, the effect of the electrons that are generated from the window can be reduced as little as possible.…”

“…However, it is difficult to maintain a static vacuum for a long time. May et al [1] introduced a VCD with a thick incident window for low-bandwidth measurements, and the sensitivity could reach a range of 7.9×10 −21 to 1.4×10 −20 C • cm 2 /MeV. The sensitivities for the VCDs described above were both less than 1.5×10 −20 C • cm 2 /MeV.…”