WO2005066851A1 - Circuit integre pour detecteurs de rayonnement - Google Patents
Circuit integre pour detecteurs de rayonnement Download PDFInfo
- Publication number
- WO2005066851A1 WO2005066851A1 PCT/SE2005/000028 SE2005000028W WO2005066851A1 WO 2005066851 A1 WO2005066851 A1 WO 2005066851A1 SE 2005000028 W SE2005000028 W SE 2005000028W WO 2005066851 A1 WO2005066851 A1 WO 2005066851A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- input
- analog
- signal
- time
- digital
- Prior art date
Links
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- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
Definitions
- TITLE INTEGRATED CIRCUIT FOR RADIATION DETECTORS
- the pulse may also be used to start a readout of signals via said analog multiplexer.
- the digital signals from the discriminators may be summed in a digital counter that is subsequently read out.
- the ASIC is a very large scale integrated circuit (VLSI) .
- Two detector inputs 101 and 102 are provided, to which external components are connected, such as a detector 103, for example a Si diode, a bias resistor 104 and two DC blocking capacitors 105 and 106.
- a voltage clamp arrangement 107 can be used.
- the signals from the detectors are amplified and converted to analog voltage signals in two Charge Sensitive Amplifiers CSA 111 and 112.
- the digital part of the circuit is held as far as possible in a quiescent state while the CSA inputs are open. In this state the digital bus static and the ADC clock is stopped. Once the readout signal has been received, the shapers are held and the input is insensitive to further induced signal. During this phase the readout and digital conversion takes place .
- the trigger signal generated by the chip is a low-level balanced differential signal where the current is switched from one conductor to another.
- the substrate is connected to ground.
- Passive metallization guard rings and earthed low-resistivity trenches are implemented between the sensitive parts of the circuit. Active guard rings are poor at suppressing high pick-up from fast switching transients.
- a deep buried conducting layer e.g.
- the buried collector in Bi-CMOS may be used as further isolation.
- the noisy digital sections are located as far away from the sensitive CSA inputs as possible.
- the interconnect to the bonding pad on the chip and the bonding wire has a finite impedance. When transistors switching takes place the dissipation of the charge stored in the channel leads to a current spike that induces a voltage between the component of the chip and the power supply line. This leads to a disturbance on the supply line that can propagate noise to the sensitive input circuits.
- the invention offers a drastic reduction in the number of high-quality leadthroughs needed when operating detectors in vacuum. This can be realized by mounting the chips in vacuum and use the readout bus to read out many detectors. Using suitable standard known bonding techniques, the chip may be operated under UHV conditions.
- the present invention has been described above with reference to a specific embodiment, it is not intended to be limited to the specific form set forth herein. For example, the different components may be arranged on a single chip or on several interconnected chips.
- the term "comprises/comprising" does not exclude the presence of other elements or steps.
- a plurality of means, elements or method steps may be implemented by e.g. a single unit or processor.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
L'invention concerne un circuit intégré comprenant une entrée destinée à être connectée à un détecteur et au moins un bloc discriminateur connecté à cette entrée. Chaque bloc discriminateur numérique est conçu pour générer un signal temporel représentatif de l'instant où une impulsion arrive en provenance de l'entrée, et également pour générer un signal logique rapide si l'amplitude de cette impulsion dépasse un seuil donné. Le signal temporel est utilisé pour activer au moins un convertisseur temps-amplitude (TAC) en vue de la production d'au moins un signal d'amplitude proportionnel à une différence temporelle entre les temps d'arrivée des impulsions. Le circuit comprend en outre un premier et un second amplificateur de charge, chaque amplificateur possédant une entrée et une sortie, un premier et un second bloc discriminateur comprenant chacun un ensemble de discriminateurs présentant des constantes temporelles différentes et possédant une entrée et une sortie respectives, un premier et un second bloc de formation analogique possédant chacun une entrée et une sortie, un multiplexeur analogique, un convertisseur analogique-numérique (CAN), un bus de signal de lecture et un bus analogique.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53549404P | 2004-01-12 | 2004-01-12 | |
| US60/535,494 | 2004-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005066851A1 true WO2005066851A1 (fr) | 2005-07-21 |
Family
ID=34749024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2005/000028 WO2005066851A1 (fr) | 2004-01-12 | 2005-01-12 | Circuit integre pour detecteurs de rayonnement |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2005066851A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323609A (zh) * | 2011-08-31 | 2012-01-18 | 上海大学 | 四元并行碲锌镉核辐射探测器装置 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3370231A (en) * | 1963-02-13 | 1968-02-20 | Commissariat Energie Atomique | Time-amplitude converter |
| SU824119A1 (ru) * | 1979-07-09 | 1981-04-23 | Белорусский Ордена Трудовогокрасного Знамени Государственный Универси-Tet Им. B.И.Ленина | Селекторный преобразователь врем - АМплиТудА |
| DE3125995A1 (de) * | 1980-07-03 | 1982-04-01 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Nietanordnung |
| DE3420664A1 (de) * | 1984-06-02 | 1985-12-05 | Gebhard 2807 Achim Heizmann | Schaltungsanordnung zur messung kurzer zeitintervalle |
| US5148031A (en) * | 1991-06-18 | 1992-09-15 | Kamalov Valei F | Device for obtaining spatial and time characteristics of a weak optical radiation from an object |
| DE4339784A1 (de) * | 1993-11-18 | 1995-05-24 | Wolfgang Dr Ing Becker | Verfahren und Vorrichtung zur zeitkorrelierten Einzelphotonenzählung mit hoher Registrierrate |
| US6573762B1 (en) * | 1999-11-05 | 2003-06-03 | Sandia Corporation | Analog pulse processor |
-
2005
- 2005-01-12 WO PCT/SE2005/000028 patent/WO2005066851A1/fr active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3370231A (en) * | 1963-02-13 | 1968-02-20 | Commissariat Energie Atomique | Time-amplitude converter |
| SU824119A1 (ru) * | 1979-07-09 | 1981-04-23 | Белорусский Ордена Трудовогокрасного Знамени Государственный Универси-Tet Им. B.И.Ленина | Селекторный преобразователь врем - АМплиТудА |
| DE3125995A1 (de) * | 1980-07-03 | 1982-04-01 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Nietanordnung |
| DE3420664A1 (de) * | 1984-06-02 | 1985-12-05 | Gebhard 2807 Achim Heizmann | Schaltungsanordnung zur messung kurzer zeitintervalle |
| US5148031A (en) * | 1991-06-18 | 1992-09-15 | Kamalov Valei F | Device for obtaining spatial and time characteristics of a weak optical radiation from an object |
| DE4339784A1 (de) * | 1993-11-18 | 1995-05-24 | Wolfgang Dr Ing Becker | Verfahren und Vorrichtung zur zeitkorrelierten Einzelphotonenzählung mit hoher Registrierrate |
| US6573762B1 (en) * | 1999-11-05 | 2003-06-03 | Sandia Corporation | Analog pulse processor |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE WPI Week 198114, Derwent World Patents Index; Class G04, AN 1982-D9349E, XP002987307 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323609A (zh) * | 2011-08-31 | 2012-01-18 | 上海大学 | 四元并行碲锌镉核辐射探测器装置 |
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