Segmented high-purity germanium detectors

Gurov, Yu. B.; Gusev, K.; Katulina, S. L.; Sandukovsky, V. G.; Borowicz, D.; Yurkowski, J.

doi:10.1134/s0020441207060073

Cited by 2 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…B-implanted contact can be segmented in a variety of geometries and provides thin dead layers for the gamma-ray detection. Li contact, instead, gives rise to thick dead layers (up to 1 mm), it is thermally unstable and can only be coarsely segmented by grinding or using wide inter-segment gaps [3][4][5][6]. Moreover, the low dopant stability can easily jeopardize the electrical insulation between the Li segments.…”

Section: Introductionmentioning

confidence: 99%

New method for the production of thin and stable, segmented n$$+$$ contacts in HPGe detectors

et al. 2021

View full text Add to dashboard Cite

The realization of pulsed-laser diffused, thin n$$+$$ + contacts on high purity germanium (HPGe) and their successful segmentation is described. The contacts have been obtained by a laser-induced diffusion of Sb atoms, deposited by sputtering on Ge surface, and then segmented by means of a photolithographic technique. Three small prototypes of gamma ray detectors have been implemented, using the same n$$+$$ + contact (laser diffused Sb) but with three different geometries and a B implanted p$$+$$ + contact. Electrical and detection properties of the prototypes have been characterized, showing low leakage currents and good spectroscopy data with different gamma-ray sources. The stability of the detector performance has also been tested subjecting one of the prototypes to a typical annealing treatment.

show abstract

Section: Introductionmentioning

confidence: 99%