Charge protection characterisation and drift time resolution improvement for GridPix

W.J.C. Koppert; M. Fransen; N. van Bakel; H. van der Graaf; F. Hartjes; J. Timmermans; J. Visser; R. Kluit; V. Gromov; F. Zappon; V.M. Blanco Carballo; Jurriaan Schmitz; Y. Bilevych

doi:10.1109/NSSMIC.2011.6154686

Charge protection characterisation and drift time resolution improvement for GridPix

W.J.C. Koppert, M. Fransen, N. van Bakel, H. van der Graaf, F. Hartjes, J. Timmermans, J. Visser, R. Kluit, V. Gromov, F. Zappon, V.M. Blanco Carballo, Jurriaan Schmitz, Y. Bilevych

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Abstract

A GridPix detector is a gaseous detector capable of detecting single primary electrons from ionising particles. Such a detector consists of a pixel chip as active anode covered with a thin layer of silicon rich silicon nitride (SiRN) for protection against discharges. A layer of 8 JlIl1 SiRN, and according recent tests even 4 JlIl1, is sufficient to protect against discharges. The effect of the thickness of the SiRN layer on the operation of a detector has been determined. Time walk effects due to pixel electronics response time and gas gain statistics cause errors in drift time measurements thereby worsening the resolution in the drift direction. Simulations and measurements have been performed to determine how much time walk can be compensated for. GridPix detectors are high resolution low mass detectors that measures track segments in 3D. Very recently we performed first tests in a 250 Me V proton beam, in order to investigate the application of GridPix in Proton therapy and results are promising.

Original language	English
Title of host publication	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Place of Publication	USA
Publisher	IEEE
Pages	1799-1802
Number of pages	4
ISBN (Print)	978-1-4673-0118-3
DOIs	https://doi.org/10.1109/NSSMIC.2011.6154686
Publication status	Published - 23 Oct 2011
Event	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain Duration: 23 Oct 2011 → 29 Oct 2011 http://www.nss-mic.org/2011/

Publication series

Name
Publisher	IEEE
ISSN (Print)	1082-3654

Conference

Conference	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Abbreviated title	NSS/MIC
Country/Territory	Spain
City	Valencia
Period	23/10/11 → 29/10/11
Internet address	http://www.nss-mic.org/2011/

Keywords

Time walk
MPGD
Proton Therapy
TPC
GridPix

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10.1109/NSSMIC.2011.6154686

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Koppert, W. J. C., Fransen, M., van Bakel, N., van der Graaf, H., Hartjes, F., Timmermans, J., Visser, J., Kluit, R., Gromov, V., Zappon, F., Blanco Carballo, V. M., Schmitz, J., & Bilevych, Y. (2011). Charge protection characterisation and drift time resolution improvement for GridPix. In IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 (pp. 1799-1802). IEEE. https://doi.org/10.1109/NSSMIC.2011.6154686

@inproceedings{eb0c3dc353a54e2c85949fcd78f88a20,

title = "Charge protection characterisation and drift time resolution improvement for GridPix",

abstract = "A GridPix detector is a gaseous detector capable of detecting single primary electrons from ionising particles. Such a detector consists of a pixel chip as active anode covered with a thin layer of silicon rich silicon nitride (SiRN) for protection against discharges. A layer of 8 JlIl1 SiRN, and according recent tests even 4 JlIl1, is sufficient to protect against discharges. The effect of the thickness of the SiRN layer on the operation of a detector has been determined. Time walk effects due to pixel electronics response time and gas gain statistics cause errors in drift time measurements thereby worsening the resolution in the drift direction. Simulations and measurements have been performed to determine how much time walk can be compensated for. GridPix detectors are high resolution low mass detectors that measures track segments in 3D. Very recently we performed first tests in a 250 Me V proton beam, in order to investigate the application of GridPix in Proton therapy and results are promising.",

keywords = "Time walk, MPGD, Proton Therapy, TPC, GridPix",

author = "W.J.C. Koppert and M. Fransen and {van Bakel}, N. and {van der Graaf}, H. and F. Hartjes and J. Timmermans and J. Visser and R. Kluit and V. Gromov and F. Zappon and {Blanco Carballo}, V.M. and Jurriaan Schmitz and Y. Bilevych",

note = "eemcs-eprint-22601 ; IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011, NSS/MIC ; Conference date: 23-10-2011 Through 29-10-2011",

year = "2011",

month = oct,

day = "23",

doi = "10.1109/NSSMIC.2011.6154686",

language = "English",

isbn = "978-1-4673-0118-3",

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Koppert, WJC, Fransen, M, van Bakel, N, van der Graaf, H, Hartjes, F, Timmermans, J, Visser, J, Kluit, R, Gromov, V, Zappon, F, Blanco Carballo, VM, Schmitz, J & Bilevych, Y 2011, Charge protection characterisation and drift time resolution improvement for GridPix. in IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011. IEEE, USA, pp. 1799-1802, IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011, Valencia, Spain, 23/10/11. https://doi.org/10.1109/NSSMIC.2011.6154686

TY - GEN

T1 - Charge protection characterisation and drift time resolution improvement for GridPix

AU - Koppert, W.J.C.

AU - Fransen, M.

AU - van Bakel, N.

AU - van der Graaf, H.

AU - Hartjes, F.

AU - Timmermans, J.

AU - Visser, J.

AU - Kluit, R.

AU - Gromov, V.

AU - Zappon, F.

AU - Blanco Carballo, V.M.

AU - Schmitz, Jurriaan

AU - Bilevych, Y.

N1 - eemcs-eprint-22601

PY - 2011/10/23

Y1 - 2011/10/23

N2 - A GridPix detector is a gaseous detector capable of detecting single primary electrons from ionising particles. Such a detector consists of a pixel chip as active anode covered with a thin layer of silicon rich silicon nitride (SiRN) for protection against discharges. A layer of 8 JlIl1 SiRN, and according recent tests even 4 JlIl1, is sufficient to protect against discharges. The effect of the thickness of the SiRN layer on the operation of a detector has been determined. Time walk effects due to pixel electronics response time and gas gain statistics cause errors in drift time measurements thereby worsening the resolution in the drift direction. Simulations and measurements have been performed to determine how much time walk can be compensated for. GridPix detectors are high resolution low mass detectors that measures track segments in 3D. Very recently we performed first tests in a 250 Me V proton beam, in order to investigate the application of GridPix in Proton therapy and results are promising.

AB - A GridPix detector is a gaseous detector capable of detecting single primary electrons from ionising particles. Such a detector consists of a pixel chip as active anode covered with a thin layer of silicon rich silicon nitride (SiRN) for protection against discharges. A layer of 8 JlIl1 SiRN, and according recent tests even 4 JlIl1, is sufficient to protect against discharges. The effect of the thickness of the SiRN layer on the operation of a detector has been determined. Time walk effects due to pixel electronics response time and gas gain statistics cause errors in drift time measurements thereby worsening the resolution in the drift direction. Simulations and measurements have been performed to determine how much time walk can be compensated for. GridPix detectors are high resolution low mass detectors that measures track segments in 3D. Very recently we performed first tests in a 250 Me V proton beam, in order to investigate the application of GridPix in Proton therapy and results are promising.

KW - Time walk

KW - MPGD

KW - Proton Therapy

KW - TPC

KW - GridPix

U2 - 10.1109/NSSMIC.2011.6154686

DO - 10.1109/NSSMIC.2011.6154686

M3 - Conference contribution

SN - 978-1-4673-0118-3

SP - 1799

EP - 1802

BT - IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011

PB - IEEE

CY - USA

T2 - IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011

Y2 - 23 October 2011 through 29 October 2011

ER -

Charge protection characterisation and drift time resolution improvement for GridPix

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