Application of the Recursive Subtraction Pulse Shape Analysis algorithm to in-beam HPGe signals

Crespi, F. C. L.; Camera, F.; Bracco, A.; Million, B.; Wieland, O.; Vandone, V.; Recchia, F.; Gadea, A.; Kroll, Thilo; Mengoni, D.; Farnea, E.; Ur, C. A.; Bazzacco, D.

doi:10.1016/j.nima.2009.03.203

Cited by 16 publications

(3 citation statements)

References 34 publications

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“…Ref. [25]). Nevertheless, in this specific study the used algorithm [19] provides a single interaction point in the segment where a net charge deposition took place, implying that the multiplicity distributions of interaction points and of segments necessarily coincide.…”

Section: Multiplicity Distributionsmentioning

confidence: 99%

Response of AGATA segmented HPGe detectors to gamma rays up to 15.1MeV

Crespi

Avigo

Camera

et al. 2013

Nuclear Instruments and Methods in Physics Research Section A:

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a b s t r a c tThe response of AGATA segmented HPGe detectors to gamma rays in the energy range 2-15 MeV was measured. The 15.1 MeV gamma rays were produced using the reaction d( 11 B,ng) 12C at E beam ¼ 19.1 MeV, while gamma rays between 2 and 9 MeV were produced using an Am-Be-Fe radioactive source. The energy resolution and linearity were studied and the energy-to-pulse-height conversion resulted to be linear within 0.05%.Experimental interaction multiplicity distributions are discussed and compared with the results of Geant4 simulations. It is shown that the application of gamma-ray tracking allows a suppression of background radiation caused by n-capture in Ge nuclei. Finally the Doppler correction for the 15.1 MeV gamma line, performed using the position information extracted with Pulse-shape analysis is discussed.

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Section: Multiplicity Distributionsmentioning

confidence: 99%

Response of AGATA segmented HPGe detectors to gamma rays up to 15.1MeV

Crespi

Avigo

Camera

et al. 2013

Nuclear Instruments and Methods in Physics Research Section A:

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“…In the last 30 years, pulse shape analysis (PSA) has attracted more attention with the fast development of electronics and computers. Lots of efforts have been spent on developing PSA techniques for background suppression of germanium detectors and PSA becomes an alternative or complement to traditional techniques (Aalseth et al, 2013;Agostini et al, 2013;Akkoyun et al, 2012;Aspacher et al, 1992;Barbeau et al, 2007;Cooper et al, 2011;Crespi et al, 2009;Crespi et al, 2008;Crespi et al, 2007;Elliott et al, 2006;Feffer et al, 1989;Gonzalez et al, 2003;Hellmig and Klapdor-Kleingrothaus, 2000;Petry et al, 1993;Philhour et al, 1998;Roth et al, 1984;Schmid et al, 1999;Yue et al, 2014). As to PSA of germanium detectors, pulse shapes from the pre-amplifier or timing filter amplifier are usually recorded by the FADC with a high sampling rate and analyzed offline to extract useful information.…”

Section: Introductionmentioning

confidence: 99%

Compton suppression in BEGe detectors by digital pulse shape analysis

Zeng

et al. 2017

Applied Radiation and Isotopes

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A new method of pulse shape discrimination (PSD) for BEGe detectors is developed to suppress Compton-continuum by digital pulse shape analysis (PSA), which helps reduce the Compton background level in gamma ray spectrometry. A decision parameter related to the rise time of a pulse shape was presented. The method was verified by experiments using 60 Co and 137 Cs sources. The result indicated that the 60 Co Peak to Compton ratio and the Cs-Peak to Co-Compton ratio could be improved by more than two and three times, respectively.

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“…The additional benefit of generating large detection volumes packing several small crystals together is the reduction of the Doppler broadening of photons emitted in-flight, owing to the finite solid angle subtended by each crystal in case the photons are emitted from recoiling nuclei. With the new generation high-resolution gamma-ray spectrometers like AGATA [14][15][16] and GRETA [17,18], the HPGe crystals are operated in position-sensitive mode through a combination of electrical segmentation of the outer electrodes, digital electronics and sophisticated Pulse Shape Algorithms [19][20][21][22][23][24][25][26][27][28]. The energy and direction of the individual photons are extracted through dedicated gamma-ray tracking algorithms [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%